COMPILE_DEPS = [
  '//lib:CORE_DEPS',
  '//lib:onos-yang-model',
]
yang_osgi_jar(
  deps = COMPILE_DEPS,
  name = 'onos-apps-l3vpn-yangmodel',
  srcs = glob(['src/main/**/*.yang']),
  visibility = [
    'PUBLIC'
  ],
)

<build>
  <plugins>
    <plugin>
      <groupId>org.onosproject</groupId>
      <artifactId>onos-yang-maven-plugin</artifactId>
      <version>1.9</version>
      <executions>
        <execution>
         <configuration>
             <classFileDir>src/main/java</classFileDir>
          </configuration>
          <goals>
            <goal>yang2java</goal>
          </goals>
        </execution>
      </executions>
    </plugin>
  </plugins>
</build>

Note:

1. If user does not provide any configurations for code generation , code will be generated in "target/generated-sources" folder. This folder conatains majorly,
   i) Service interface for module.
   ii) Module interface and its param class.
   iii) Interfaces of child constructs of module and their default implementation class.
   
2. If a yang file contains only typedef/grouping nodes, there will not be any generation of service class only one interface will be generated.

If an identifier for a construct contains java keywords, then it name will be prefixed with "yangAutoPrefix" in generated code.

File : acme-system.yang
module acme-system {
     namespace "http://acme.example.com/system";
     prefix "acme";
     organization "ACME Inc.";
     contact "joe@acme.example.com";
     description
        "The module for entities implementing the ACME system.";
     revision 2007-06-09 {
         description "Initial revision.";
     }
     container system {
         container login {
             leaf message {
                 type string;
                 description
                     "Message given at start of login session";
             }
        }
    }
    .
    .
    .
}

File : System.java
package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.system.Login; 

/** 
 * Abstraction of an entity which represents the functionality of system. 
 */ 
public interface System { 

    /** 
     * Returns the attribute login. 
     * 
     * @return login value of login 
     */ 
    Login login(); 

    /** 
     * Sets the attribute login. 
     * 
     * @param login value of login 
     */ 
    void login(Login login); 

}

File : network.yang
  module network { 
     yang-version 1; 
     namespace "urn:TBD:params:xml:ns:yang:nodes"; 
     prefix nd; 
 
     organization "TBD"; 
     contact 
       "WILL-BE-DEFINED-LATER"; 
     description 
       "This module defines a common base model for a collection 
        of nodes in a network. Node definitions s are further used 
        in network topologies and inventories."; 
 
     revision 2014-03-09 { 
       description 
         "Initial revision."; 
       reference "draft-clemm-i2rs-yang-network-topo-04"; 
     } 
      
     list networklist { 
       key "network-id"; 
 
       leaf network-id { 
         type string; 
       } 
 
       leaf server-provided { 
         type boolean; 
         config false; 
       } 
     } 
     rpc rpc-test { 
      input { 
        container cont { 
            leaf lf { 
                type string; 
            } 
        } 
      } 
    }  
}

File : NetworkService.java

package org.onosproject.yang.gen.v1.urn.tbd.params.xml.ns.yang.nodes.rev20140309; 

import org.onosproject.yang.gen.v1.urn.tbd.params.xml.ns.yang.nodes.rev20140309.network.rpctest.RpcTestInput; 

/** 
 * Abstraction of an entity which represents the functionality of network. 
 */ 
public interface NetworkService { 
    /** 
     * Service interface of rpcTest. 
     * 
     * @param inputVar input of service interface rpcTest 
     */ 
    void rpcTest(RpcTestInput inputVar); 

}


File : Network.java
 
package org.onosproject.yang.gen.v1.urn.tbd.params.xml.ns.yang.nodes.rev20140309; 

import java.util.List; 
import org.onosproject.yang.gen.v1.urn.tbd.params.xml.ns.yang.nodes.rev20140309.network.Networklist; 

/** 
 * Abstraction of an entity which represents the functionality of network. 
 */ 
public interface Network { 

    /** 
     * Returns the attribute networklist. 
     * 
     * @return networklist list of networklist 
     */ 
    List<Networklist> networklist(); 
 
    /** 
     * Sets the attribute networklist. 
     * 
     * @param networklist list of networklist 
     */ 
    void networklist(List<Networklist> networklist); 

    /** 
     * Adds to the list of networklist. 
     * 
     * @param addTo value of networklist 
     */ 
    void addToNetworklist(Networklist addTo); 

}
 
File: NetworkOpParam.java

package org.onosproject.yang.gen.v1.urn.tbd.params.xml.ns.yang.nodes.rev20140309; 

import com.google.common.base.MoreObjects; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.Map; 
import java.util.Objects; 
import org.onosproject.yang.gen.v1.urn.tbd.params.xml.ns.yang.nodes.rev20140309.network.Networklist; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of network. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class NetworkOpParam extends InnerModelObject implements Network { 
    protected List<Networklist> networklist; 

    @Override 
    public List<Networklist> networklist() { 
        return networklist; 
    } 

    @Override 
    public void networklist(List<Networklist> networklist) { 
        this.networklist = networklist; 
    } 

    @Override 
    public void addToNetworklist(Networklist addTo) { 
        if (networklist == null) { 
            networklist = new ArrayList<>(); 
        } 
        networklist.add(addTo); 
    } 


    @Override 
    public int hashCode() { 
        return Objects.hash(networklist); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof NetworkOpParam) { 
            NetworkOpParam other = (NetworkOpParam) obj; 
            return 
                Objects.equals(networklist, other.networklist); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("networklist", networklist) 
            .toString(); 
    } 

    /** 
     * Creates an instance of networkOpParam. 
     */ 
    public NetworkOpParam() { 
    } 


    @Override 
    public void addAugmentation(InnerModelObject obj) { 
    } 

    @Override 
    public void removeAugmentation(InnerModelObject obj) { 
    } 

    @Override 
    public Map<Class<? extends InnerModelObject>, InnerModelObject> augmentations() { 

        return null; 
    } 

    @Override 
    public <T extends InnerModelObject> T augmentation(Class<T> c) { 

        return null; 
    } 
}

File : acme-system.yang
module acme-system {
    namespace "http://yang-central.org/ns/example/acme";
    prefix acme;
    include "acme-types";
 
    container access {
        leaf id {
            type uint32;
        }
        
    }
}
File : acme-types.yang
submodule acme-types {
    yang-version 1;
    belongs-to "acme-system" {
        prefix "acme";
    }
    
    container access {
        leaf access-timeout {
            type uint32;
        }
        leaf retries {
            type uint8;
        }
    }
}

Code generation will be same as module.

module dhcp {
  namespace "http://yang-central.org/ns/example/dhcp";
  prefix dhcp;

 import ietf-yang-types { prefix yang; }
 import ietf-inet-types { prefix inet; }
}

File : flow-classifier.yang
module flow-classifier {
    yang-version 1;
    namespace "sfc.flowclassifier";
    prefix "flow-classifier";
    import "ietf-yang-types" {
        prefix "yang";
    } 
    
    organization "ON-LAB";
    description "This submodule defines for flow classifier.";
    revision "2016-05-24" {
        description "Initial revision.";
    }
   
    leaf id {
        type yang:uuid;
    }
}

File : ietf-yang-types.yang
module ietf-yang-types {

     namespace "urn:ietf:params:xml:ns:yang:ietf-yang-types";
     prefix "yang";

     organization
      "IETF NETMOD (NETCONF Data Modeling Language) Working Group";

     contact
      "WG Web:   <http://tools.ietf.org/wg/netmod/>
       WG List:  <mailto:netmod@ietf.org>

       WG Chair: David Kessens
                 <mailto:david.kessens@nsn.com>

       WG Chair: Juergen Schoenwaelder
                 <mailto:j.schoenwaelder@jacobs-university.de>

       Editor:   Juergen Schoenwaelder
                 <mailto:j.schoenwaelder@jacobs-university.de>";

     description
      "This module contains a collection of generally useful derived
       YANG data types.

       Copyright (c) 2013 IETF Trust and the persons identified as
       authors of the code.  All rights reserved.

       Redistribution and use in source and binary forms, with or
       without modification, is permitted pursuant to, and subject
       to the license terms contained in, the Simplified BSD License
       set forth in Section 4.c of the IETF Trust's Legal Provisions
       Relating to IETF Documents
       (http://trustee.ietf.org/license-info).

       This version of this YANG module is part of RFC 6991; see
       the RFC itself for full legal notices.";

     revision 2013-07-15 {
       description
        "This revision adds the following new data types:
         - yang-identifier
         - hex-string
         - uuid
         - dotted-quad";
       reference
        "RFC 6991: Common YANG Data Types";
     }

     revision 2010-09-24 {
       description
        "Initial revision.";
       reference
        "RFC 6021: Common YANG Data Types";
     }

     typedef uuid {
       type string {
         pattern '[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-'
               + '[0-9a-fA-F]{4}-[0-9a-fA-F]{12}';
       }
       description
        "A Universally Unique IDentifier in the string representation
         defined in RFC 4122.  The canonical representation uses
         lowercase characters.

         The following is an example of a UUID in string representation:
         f81d4fae-7dec-11d0-a765-00a0c91e6bf6
         ";
       reference
        "RFC 4122: A Universally Unique IDentifier (UUID) URN
                   Namespace";
     }
}

File : Uuid.java
package org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev20100924.ietfyangtypes;
import java.util.Objects;
import com.google.common.base.MoreObjects;

public final class Uuid {
    private String string;

    private Uuid() {
    }

    public Uuid(String value) {
        this.string = value;
    }

    public static Uuid of(String value) {
        return new Uuid(value);
    }

    public String string() {
        return string;
    }

    @Override
    public int hashCode() {
        return Objects.hash(string);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof Uuid) {
            Uuid other = (Uuid) obj;
            return
                 Objects.equals(string, other.string);
        }
        return false;
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(getClass())
            .add("string", string)
            .toString();
    }

    public static Uuid fromString(String valInString) {
        try {
            String tmpVal = (valInString);
            return of(tmpVal);
        } catch (Exception e) {
        }
        return null;
    }
}
 
File : DefaultCont1.java

package org.onosproject.yang.gen.v1.sfc.flowclassifier.rev20160524.flowclassifier; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev20130715.ietfyangtypes.Uuid; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of cont1. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class DefaultCont1 extends InnerModelObject implements Cont1 { 
    protected Uuid id; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public Uuid id() { 
        return id; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void id(Uuid id) { 
        valueLeafFlags.set(LeafIdentifier.ID.getLeafIndex()); 
        this.id = id; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(id, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultCont1) { 
            DefaultCont1 other = (DefaultCont1) obj; 
            return 
                Objects.equals(id, other.id) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("id", id) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultCont1. 
     */ 
    public DefaultCont1() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}

File : acme-system.yang
module acme-system {
     namespace "http://acme.example.com/system";
     prefix "acme";
     organization "ACME Inc.";
     contact "joe@acme.example.com";
     description
        "The module for entities implementing the ACME system.";
     revision 2007-06-09 {
         description "Initial revision.";
     }
     container system {
            leaf host-name {
                type string;
                description "Hostname for this system";
           }
     }
    .
    .
    .
}

File: System.java
package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import java.util.BitSet; 

/** 
 * Abstraction of an entity which represents the functionality of system. 
 */ 
public interface System { 

    /** 
     * Identify the leaf of System. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents hostName. 
         */ 
        HOSTNAME(1); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 
 
    /** 
     * Returns the attribute hostName. 
     * 
     * @return hostName value of hostName 
     */ 
    String hostName(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute hostName. 
     * 
     * @param hostName value of hostName 
     */ 
    void hostName(String hostName); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}


File : DefaultSystem.java

package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of system. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class DefaultSystem extends InnerModelObject implements System { 
    protected String hostName; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public String hostName() { 
        return hostName; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void hostName(String hostName) { 
        valueLeafFlags.set(LeafIdentifier.HOSTNAME.getLeafIndex()); 
        this.hostName = hostName; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(hostName, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultSystem) { 
            DefaultSystem other = (DefaultSystem) obj; 
            return 
                Objects.equals(hostName, other.hostName) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("hostName", hostName) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultSystem. 
     */ 
    public DefaultSystem() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}

File : acme-system.yang
module acme-system {
     namespace "http://acme.example.com/system";
     prefix "acme";
     organization "ACME Inc.";
     contact "joe@acme.example.com";
     description
        "The module for entities implementing the ACME system.";
     revision 2007-06-09 {
         description "Initial revision.";
     }
     container system {
             leaf-list domain-search {
                 type string;
                 description "List of domain names to search";
             }
     }
    .
    .
    .
}

File : System.java
package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import java.util.BitSet; 
import java.util.List; 

/** 
 * Abstraction of an entity which represents the functionality of system. 
 */ 
public interface System { 

    /** 
     * Identify the leaf of System. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents domainSearch. 
         */ 
        DOMAINSEARCH(1); 

        private int leafIndex; 
 
        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute domainSearch. 
     * 
     * @return domainSearch list of domainSearch 
     */ 
    List<String> domainSearch(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute domainSearch. 
     * 
     * @param domainSearch list of domainSearch 
     */ 
    void domainSearch(List<String> domainSearch); 

    /** 
     * Adds to the list of domainSearch. 
     * 
     * @param addTo value of domainSearch 
     */ 
    void addToDomainSearch(String addTo); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}

File : DefaultSystem.java

package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import com.google.common.base.MoreObjects; 
import java.util.ArrayList; 
import java.util.BitSet; 
import java.util.List; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of system. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class DefaultSystem extends InnerModelObject implements System { 
    protected List<String> domainSearch; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public List<String> domainSearch() { 
        return domainSearch; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void domainSearch(List<String> domainSearch) { 
        valueLeafFlags.set(LeafIdentifier.DOMAINSEARCH.getLeafIndex()); 
        this.domainSearch = domainSearch; 
    } 

    @Override 
    public void addToDomainSearch(String addTo) { 
        if (domainSearch == null) { 
            domainSearch = new ArrayList<>(); 
        } 
        domainSearch.add(addTo); 
    } 


    @Override 
    public int hashCode() { 
        return Objects.hash(domainSearch, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultSystem) { 
            DefaultSystem other = (DefaultSystem) obj; 
            return 
                Objects.equals(domainSearch, other.domainSearch) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("domainSearch", domainSearch) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultSystem. 
     */ 
    public DefaultSystem() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}

File : acme-system.yang
File : acme-system.yang
module acme-system {
     namespace "http://acme.example.com/system";
     prefix "acme";
     organization "ACME Inc.";
     contact "joe@acme.example.com";
     description
        "The module for entities implementing the ACME system.";
     revision 2007-06-09 {
         description "Initial revision.";
     }
     container system {
            leaf host-name {
                type string;
                description "Hostname for this system";
           }
     }
    .
    .
    .
}

File: System.java
package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import java.util.BitSet; 

/** 
 * Abstraction of an entity which represents the functionality of system. 
 */ 
public interface System { 

    /** 
     * Identify the leaf of System. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents hostName. 
         */ 
        HOSTNAME(1); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute hostName. 
     * 
     * @return hostName value of hostName 
     */ 
    String hostName(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute hostName. 
     * 
     * @param hostName value of hostName 
     */ 
    void hostName(String hostName); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}


File : DefaultSystem.java

package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of system. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class DefaultSystem extends InnerModelObject implements System { 
    protected String hostName; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public String hostName() { 
        return hostName; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void hostName(String hostName) { 
        valueLeafFlags.set(LeafIdentifier.HOSTNAME.getLeafIndex()); 
        this.hostName = hostName; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(hostName, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultSystem) { 
            DefaultSystem other = (DefaultSystem) obj; 
            return 
                Objects.equals(hostName, other.hostName) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("hostName", hostName) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultSystem. 
     */ 
    public DefaultSystem() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}

File : acme-system.yang
module acme-system {
    namespace "http://acme.example.com/system";
    prefix "acme";
    organization "ACME Inc.";
    contact "joe@acme.example.com";
    description
        "The module for entities implementing the ACME system.";
    revision 2007-06-09 {
        description "Initial revision.";
    }
    list login {
        key "name";
        list login {
            key "name";
            leaf name {
                type string;
            }
            leaf full-name {
                type string;
            }
            leaf class {
                type string;
            }
        }
        leaf name {
            type string;
        }
    }
    .
    .
    .
}

Note: Qualified name is used for child node "login".  
 
File : Login.java
package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import java.util.BitSet; 
import java.util.List; 

/** 
 * Abstraction of an entity which represents the functionality of login. 
 */ 
public interface Login { 

    /** 
     * Identify the leaf of Login. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents name. 
         */ 
        NAME(1); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute name. 
     * 
     * @return name value of name 
     */ 
    String name(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Returns the attribute login. 
     * 
     * @return login list of login 
     */ 
    List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.login.Login> login(); 

    /** 
     * Sets the attribute name. 
     * 
     * @param name value of name 
     */ 
    void name(String name); 

    /** 
     * Sets the attribute login. 
     * 
     * @param login list of login 
     */ 
    void login(List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.login 
            .Login> login); 

    /** 
     * Adds to the list of login. 
     * 
     * @param addTo value of login 
     */ 
    void addToLogin(org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.login 
            .Login addTo); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}

File : DefaultLogin.java

package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem; 

import com.google.common.base.MoreObjects; 
import java.util.ArrayList; 
import java.util.BitSet; 
import java.util.List; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 
import org.onosproject.yang.model.MultiInstanceObject; 

/** 
 * Represents the implementation of login. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class DefaultLogin extends InnerModelObject 
        implements Login, MultiInstanceObject<LoginKeys> { 
    protected String name; 
    protected BitSet valueLeafFlags = new BitSet(); 
    protected List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.login 
            .Login> login; 

    @Override 
    public String name() { 
        return name; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem 
            .login.Login> login() { 
        return login; 
    } 

    @Override 
    public void name(String name) { 
        valueLeafFlags.set(LeafIdentifier.NAME.getLeafIndex()); 
        this.name = name; 
    } 

    @Override 
    public void login(List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem 
            .login.Login> login) { 
        this.login = login; 
    } 

    @Override 
    public void addToLogin(org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem 
            .login.Login addTo) { 
        if (login == null) { 
            login = new ArrayList<>(); 
        } 
        login.add(addTo); 
    } 


    @Override 
    public int hashCode() { 
        return Objects.hash(name, valueLeafFlags, login); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultLogin) { 
            DefaultLogin other = (DefaultLogin) obj; 
            return 
                Objects.equals(name, other.name) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags) && 
                Objects.equals(login, other.login); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("name", name) 
            .add("valueLeafFlags", valueLeafFlags) 
            .add("login", login) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultLogin. 
     */ 
    public DefaultLogin() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}
 
 
File : LoginKeys.java

package org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem;
import java.lang.String;
import org.onosproject.yang.model.KeyInfo;
import java.util.Objects;
/**
 * Represents the implementation of login.
 */
public class LoginKeys implements KeyInfo<DefaultLogin> {
    protected String name;
    /**
     * Returns the attribute name.
     *
     * @return name value of name
     */
    public String name() {
        return name;
    }
    /**
     * Sets the value to attribute name.
     *
     * @param name value of name
     */
    public void name(String name) {
        this.name = name;
    }

    @Override
    public int hashCode() {
        return Objects.hash(name);
    }
    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof LoginKeys) {
            LoginKeys other = (LoginKeys) obj;
            return
                Objects.equals(name, other.name);
        }
        return false;
    }
}


 

module Test {
    namespace "http://test.example.com/";
    prefix "test";
    organization "ACME Inc.";
    grouping endpoint { 
        leaf address {
            type int32; 
        } 
        leaf port {
            type int8; 
        }
    }
    container connection { 
        container source {
            uses endpoint;
        }
        container destination {
            uses endpoint;
        }
    }
    .
    .
    .
}

File : Connection.java
package org.onosproject.yang.gen.v1.http.test.example.com.test; 

import org.onosproject.yang.gen.v1.http.test.example.com.test.connection.Destination; 
import org.onosproject.yang.gen.v1.http.test.example.com.test.connection.Source; 

/** 
 * Abstraction of an entity which represents the functionality of connection. 
 */ 
public interface Connection { 

    /** 
     * Returns the attribute source. 
     * 
     * @return source value of source 
     */ 
    Source source(); 

    /** 
     * Returns the attribute destination. 
     * 
     * @return destination value of destination 
     */ 
    Destination destination(); 

    /** 
     * Sets the attribute source. 
     * 
     * @param source value of source 
     */ 
    void source(Source source); 

    /** 
     * Sets the attribute destination. 
     * 
     * @param destination value of destination 
     */ 
    void destination(Destination destination); 

}

File : link.yang
module link {
    yang-version 1;
    namespace http://huawei.com;
    prefix Ant;
    container link {
        choice interfaceType {
            case ethernerType {
                leaf ethernet { type string; }
            }
            case p2pType {
               leaf p2p { type string; }
            }
        }
     }
}

File : InterfaceType.java

package org.onosproject.yang.gen.v1.http.huawei.com.link.link; 

/** 
 * Abstraction of an entity which represents the functionality of interfaceType. 
 */ 
public interface InterfaceType { 
}


File : EthernerType.java
package org.onosproject.yang.gen.v1.http.huawei.com.link.link.interfacetype; 

import java.util.BitSet; 
import org.onosproject.yang.gen.v1.http.huawei.com.link.link.InterfaceType; 

/** 
 * Abstraction of an entity which represents the functionality of ethernerType. 
 */ 
public interface EthernerType extends InterfaceType  { 

    /** 
     * Identify the leaf of EthernerType. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents ethernet. 
         */ 
        ETHERNET(1); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute ethernet. 
     * 
     * @return ethernet value of ethernet 
     */ 
    String ethernet(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute ethernet. 
     * 
     * @param ethernet value of ethernet 
     */ 
    void ethernet(String ethernet); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}



File : DefaultEthernerType.java
package org.onosproject.yang.gen.v1.http.huawei.com.link.link.interfacetype; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.gen.v1.http.huawei.com.link.link.InterfaceType; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of ethernerType. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class DefaultEthernerType extends InnerModelObject implements EthernerType { 
    protected String ethernet; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public String ethernet() { 
        return ethernet; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void ethernet(String ethernet) { 
        valueLeafFlags.set(LeafIdentifier.ETHERNET.getLeafIndex()); 
        this.ethernet = ethernet; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(ethernet, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultEthernerType) { 
            DefaultEthernerType other = (DefaultEthernerType) obj; 
            return 
                Objects.equals(ethernet, other.ethernet) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("ethernet", ethernet) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultEthernerType. 
     */ 
    public DefaultEthernerType() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}

File: sfc.yang
module Sfc {
    yang-version 1;
    namespace http://huawei.com;
    prefix Ant;
    rpc SFP {
        input {
            leaf port {
                type string;
            }
          }
          output {
            leaf path {
                type string;
            }
          }
    }
}

File : SfcService.java
package org.onosproject.yang.gen.v1.http.huawei.com; 

import org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp.SfpInput; 
import org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp.SfpOutput; 

/** 
 * Abstraction of an entity which represents the functionality of sfc. 
 */ 
public interface SfcService { 
    /** 
     * Service interface of sfp. 
     * 
     * @param inputVar input of service interface sfp 
     * @return sfpOutput output of service interface sfp 
     */ 
    SfpOutput sfp(SfpInput inputVar); 

}

File : SfpInput.java
package org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp; 

import java.util.BitSet; 

/** 
 * Abstraction of an entity which represents the functionality of sfpInput. 
 */ 
public interface SfpInput { 

    /** 
     * Identify the leaf of SfpInput. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents port. 
         */ 
        PORT(1); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute port. 
     * 
     * @return port value of port 
     */ 
    String port(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute port. 
     * 
     * @param port value of port 
     */ 
    void port(String port); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}


File : DefaultSfpInput.java
package org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of sfpInput. 
 */ 
public class DefaultSfpInput extends InnerModelObject implements SfpInput { 
    protected String port; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public String port() { 
        return port; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void port(String port) { 
        valueLeafFlags.set(LeafIdentifier.PORT.getLeafIndex()); 
        this.port = port; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(port, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultSfpInput) { 
            DefaultSfpInput other = (DefaultSfpInput) obj; 
            return 
                Objects.equals(port, other.port) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("port", port) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultSfpInput. 
     */ 
    public DefaultSfpInput() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}


File : Sfpoutput.java

package org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp; 

import java.util.BitSet; 

/** 
 * Abstraction of an entity which represents the functionality of sfpOutput. 
 */ 
public interface SfpOutput { 

    /** 
     * Identify the leaf of SfpOutput. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents path. 
         */ 
        PATH(1); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute path. 
     * 
     * @return path value of path 
     */ 
    String path(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute path. 
     * 
     * @param path value of path 
     */ 
    void path(String path); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}


File : DefaultSfpOutput.java

package org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of sfpOutput. 
 */ 
public class DefaultSfpOutput extends InnerModelObject implements SfpOutput { 
    protected String path; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public String path() { 
        return path; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void path(String path) { 
        valueLeafFlags.set(LeafIdentifier.PATH.getLeafIndex()); 
        this.path = path; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(path, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultSfpOutput) { 
            DefaultSfpOutput other = (DefaultSfpOutput) obj; 
            return 
                Objects.equals(path, other.path) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("path", path) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultSfpOutput. 
     */ 
    public DefaultSfpOutput() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}
 
 
File : DefaultRpcHandler.java
 
package org.onosproject.yang.gen.v1.http.huawei.com;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.onosproject.config.RpcHandler;
import org.onosproject.config.RpcCommand;
import org.onosproject.config.RpcInput;
/**
 * Represents the implementation of RPC handler.
 */
public class DefaultRpcHandler implements RpcHandler {
    private ExecutorService executor;
    @Override
    public void executeRpc(Integer msgId, RpcCommand cmd, RpcInput input) {
        executor = Executors.newSingleThreadExecutor();
        executor.execute(new RpcExecuter(msgId, (RpcExtendedCommand) cmd, input));
    }
    /**
     * Runnable capable of invoking the appropriate RPC command's execute method.
     */
    public class RpcExecuter implements Runnable {
        Integer msgId;
        RpcExtendedCommand cmd;
        RpcInput input;
        /**
         * Constructs a RPC executor for the given msg id, RPC command and
         * RPC input.
         *
         * @param msgId msgId of the RPC message to be executed
         * @param cmd RPC command to be executed
         * @param input input data to the RPC command
         */
        public RpcExecuter(Integer msgId, RpcExtendedCommand cmd, RpcInput input) {
            this.msgId = msgId;
            this.cmd = cmd;
            this.input = input;
        }
        @Override
        public void run() {
            cmd.execute(input, msgId);
        }
    }
}
 
 
File : RegisterRpc.java
 
package org.onosproject.yang.gen.v1.http.huawei.com;
import org.onosproject.yang.gen.v1.http.huawei.com.sfc.SfpCommand;
import java.util.LinkedList;
import java.util.List;
import org.onosproject.config.RpcCommand;
import org.onosproject.config.RpcHandler;
import org.onosproject.config.DynamicConfigService;
import org.onosproject.yang.model.ModelConverter;
/**
 * Represents the implementation of register RPC.
 */
public class RegisterRpc {
    private List<RpcCommand> rpcCommands;
    private RpcHandler rpcHandler;
    private DynamicConfigService storeService;
    private ModelConverter modelConverter;
    private SfcService sfcService;
    /**
     * Constructs a register rpc for the given store service, mode converter and
     * application service.
     *
     * @param store dynamic config service
     * @param modelConverter model converter for convertion
     * @param allService application service
     */
    public RegisterRpc(DynamicConfigService store, ModelConverter modelConverter, SfcService sfcService) {
        this.rpcCommands = new LinkedList<RpcCommand>();
        this.rpcHandler = new DefaultRpcHandler();
        this.storeService = store;
        this.modelConverter = modelConverter;
        this.sfcService = sfcService;
    }
    /**
     * Registers RPC handler with dynamic config service.
     */
    public void registerRpc() {
        createRpcCommands();
        for (RpcCommand rpcCommand : rpcCommands) {
            storeService.registerHandler(rpcHandler, rpcCommand);
        }
    }
    /**
     * Creates RPC command for all the RPC.
     */
    public void createRpcCommands() {
        RpcCommand sfp = new SfpCommand(storeService, modelConverter, sfcService);
        rpcCommands.add(sfp);
    }
}
 
 
File : RpcExtendedCommand.java
 
package org.onosproject.yang.gen.v1.http.huawei.com;
import org.onosproject.yang.model.ResourceId;
import org.onosproject.config.RpcInput;
import org.onosproject.config.RpcCommand;
/**
 * Abstract implementation of an RPC extended command.
 */
public abstract class RpcExtendedCommand extends RpcCommand {
    /**
     * Creates an instance of RPC extended command.
     *
     * @param cmdId of RPC command
     */
    public RpcExtendedCommand(ResourceId cmdId) {
        super(cmdId);
    }
    /**
     * Executes the RPC command.
     *
     * @param input input data to the RPC command
     * @param msgId of the RPC message to be executed
     */
    public abstract void execute(RpcInput rpcInput, int msgId);
}
 
 
File : SfpCommand.java
 
package org.onosproject.yang.gen.v1.http.huawei.com.sfc;
import org.onosproject.yang.gen.v1.http.huawei.com.RpcExtendedCommand;
import org.onosproject.yang.gen.v1.http.huawei.com.SfcService;
import org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp.DefaultSfpOutput;
import org.onosproject.yang.gen.v1.http.huawei.com.sfc.sfp.SfpInput;
import org.onosproject.yang.model.ModelConverter;
import org.onosproject.yang.model.ResourceId;
import org.onosproject.config.RpcInput;
import org.onosproject.config.RpcOutput;
import org.onosproject.config.DynamicConfigService;
import org.onosproject.yang.model.ResourceData;
import org.onosproject.yang.model.ModelObjectData;
import org.onosproject.yang.runtime.DefaultResourceData;
import org.onosproject.yang.model.DefaultModelObjectData;
import static org.onosproject.config.RpcOutput.Status.RPC_SUCCESS;
/**
 * Represents the implementation of sfp.
 */
public class SfpCommand extends RpcExtendedCommand {
    private ModelConverter modelConverter;
    private SfcService sfcService;
    private DynamicConfigService storeService;
    /**
     * Constructs a sfp command for the given cmd id, model converter,
     * application service.
     *
     * @param cmdId identifier of RPC command
     * @param modelConverter model converter for convertion
     * @param allService application service
     */
    public SfpCommand(DynamicConfigService store, ModelConverter modelConverter, SfcService sfcService) {
        super(getResourceId());
        this.storeService = store;
        this.modelConverter = modelConverter;
        this.sfcService = sfcService;
    }
    @Override
    public void execute(RpcInput rpcInput) {
    }
    /**
     * Executes the RPC command.
     *
     * @param rpcInput input data to the RPC command
     * @param msgId msgId of the RPC message to be executed
     */
    public void execute(RpcInput rpcInput, int msgId) {
        ResourceData inputData = DefaultResourceData.builder()
                .resourceId(getResourceId())
                .addDataNode(rpcInput.input()).build();
        ModelObjectData inputMo = modelConverter.createModel(inputData);
        SfpInput inputObject = ((SfpInput) inputMo.modelObjects().get(0));
        DefaultSfpOutput outputObject = (DefaultSfpOutput) sfcService.sfp(inputObject);
        ModelObjectData outputMo = DefaultModelObjectData.builder()
                .addModelObject(outputObject).build();
        ResourceData outputData = modelConverter.createDataNode(outputMo);
        RpcOutput output = new RpcOutput(RPC_SUCCESS, outputData.dataNodes().get(0));
        storeService.rpcResponse(msgId, output);
    }
    private static ResourceId getResourceId() {
        return new ResourceId.Builder().addBranchPointSchema("/", null)
                .addBranchPointSchema("SFP", "http://huawei.com").build();
    }
}

File : ospf.yang
module ospf {
    namespace "http://example.com/ospf";
    prefix "ospf";

    notification test {
           leaf event-class {
              type string;
           }
           leaf severity {
              type string;
           }
    }
}

File : OspfService.java

package org.onosproject.yang.gen.v1.http.example.com.ospf; 

import org.onosproject.event.ListenerService; 
import org.onosproject.yang.gen.v1.http.example.com.ospf.ospf.OspfEvent; 
import org.onosproject.yang.gen.v1.http.example.com.ospf.ospf.OspfEventListener; 

/** 
 * Abstraction of an entity which represents the functionality of ospf. 
 */ 
public interface OspfService extends ListenerService<OspfEvent, OspfEventListener> { 
}


File : OspfEvent.java

package org.onosproject.yang.gen.v1.http.example.com.ospf.ospf; 

import org.onosproject.event.AbstractEvent; 

/** 
 * Represents event implementation of ospf. 
 */ 
public class OspfEvent extends AbstractEvent<OspfEvent.Type, OspfEventSubject> { 

    public enum Type { 

        /** 
         * Represents test. 
         */ 
        TEST 
    } 

    /** 
     * Creates OspfEventSubject event with type and subject. 
     * 
     * @param type event type 
     * @param subject subject OspfEventSubject 
     */ 
    public OspfEvent(Type type, OspfEventSubject subject) { 
        super(type, subject); 
    } 

    /** 
     * Creates OspfEventSubject event with type, subject and time. 
     * 
     * @param type event type 
     * @param subject subject OspfEventSubject 
     * @param time time of event 
     */ 
    public OspfEvent(Type type, OspfEventSubject subject, long time) { 
        super(type, subject, time); 
    } 

}


File : OspfEventSubject.java

package org.onosproject.yang.gen.v1.http.example.com.ospf.ospf; 
/** 
 * Represents the implementation of ospf. 
 */ 
public class OspfEventSubject { 

    protected Test test; 
    /** 
     * Returns the attribute test. 
     * 
     * @return test value of test 
     */ 
    public Test test() { 
        return test; 
    } 

    /** 
     * Sets the value to attribute test. 
     * 
     * @param test value of test 
     */ 
    public void test(Test test) { 
        this.test = test; 
    } 

}


File : OspfEventListener.java

package org.onosproject.yang.gen.v1.http.example.com.ospf.ospf; 

import org.onosproject.event.EventListener; 

/** 
 * Abstraction for event listener of ospf. 
 */ 
public interface OspfEventListener extends EventListener<OspfEvent> { 
}


File : Test.java

package org.onosproject.yang.gen.v1.http.example.com.ospf.ospf; 

import java.util.BitSet; 

/** 
 * Abstraction of an entity which represents the functionality of test. 
 */ 
public interface Test { 

    /** 
     * Identify the leaf of Test. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents eventClass. 
         */ 
        EVENTCLASS(1), 
        /** 
         * Represents severity. 
         */ 
        SEVERITY(2); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 
 
        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute eventClass. 
     * 
     * @return eventClass value of eventClass 
     */ 
    String eventClass(); 

    /** 
     * Returns the attribute severity. 
     * 
     * @return severity value of severity 
     */ 
    String severity(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute eventClass. 
     * 
     * @param eventClass value of eventClass 
     */ 
    void eventClass(String eventClass); 

    /** 
     * Sets the attribute severity. 
     * 
     * @param severity value of severity 
     */ 
    void severity(String severity); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}


File : DefaultTest.java

package org.onosproject.yang.gen.v1.http.example.com.ospf.ospf; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of test. 
 */ 
public class DefaultTest extends InnerModelObject implements Test { 
    protected String eventClass; 
    protected String severity; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public String eventClass() { 
        return eventClass; 
    } 

    @Override 
    public String severity() { 
        return severity; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void eventClass(String eventClass) { 
        valueLeafFlags.set(LeafIdentifier.EVENTCLASS.getLeafIndex()); 
        this.eventClass = eventClass; 
    } 

    @Override 
    public void severity(String severity) { 
        valueLeafFlags.set(LeafIdentifier.SEVERITY.getLeafIndex()); 
        this.severity = severity; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(eventClass, severity, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultTest) { 
            DefaultTest other = (DefaultTest) obj; 
            return 
                Objects.equals(eventClass, other.eventClass) && 
                Objects.equals(severity, other.severity) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("eventClass", eventClass) 
            .add("severity", severity) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultTest. 
     */ 
    public DefaultTest() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}

 A augment node can't add the same augmented info to an augmented node multiple times.

File : Test.yang
module Test {
     yang-version 1;
     namespace "http://huawei.com";
     prefix Ant;
     description "Interval before a route is declared invalid";

     container interface {
          leaf ifType {
                type string;
          }
     }

     augment "/interface" {
          leaf ds0ChannelNumber {
               type int16;
         }
    }
}

 
File : AugmentedInterface.java

package org.onosproject.yang.gen.v1.http.huawei.com.test.yangautoprefixinterface; 

import java.util.BitSet; 

/** 
 * Abstraction of an entity which represents the functionality of augmentedInterface. 
 */ 
public interface AugmentedInterface { 

    /** 
     * Identify the leaf of AugmentedInterface. 
     */ 
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
        /** 
         * Represents ds0ChannelNumber. 
         */ 
        DS0CHANNELNUMBER(1); 

        private int leafIndex; 

        public int getLeafIndex() { 
            return leafIndex; 
        } 

        LeafIdentifier(int value) { 
            this.leafIndex = value; 
        } 
    } 

    /** 
     * Returns the attribute ds0ChannelNumber. 
     * 
     * @return ds0ChannelNumber value of ds0ChannelNumber 
     */ 
    short ds0ChannelNumber(); 

    /** 
     * Returns the attribute valueLeafFlags. 
     * 
     * @return valueLeafFlags value of valueLeafFlags 
     */ 
    BitSet valueLeafFlags(); 

    /** 
     * Sets the attribute ds0ChannelNumber. 
     * 
     * @param ds0ChannelNumber value of ds0ChannelNumber 
     */ 
    void ds0ChannelNumber(short ds0ChannelNumber); 


    /** 
     * Checks if the leaf value is set. 
     * 
     * @param leaf leaf whose value status needs to checked 
     * @return result of leaf value set in object 
     */ 
    boolean isLeafValueSet(LeafIdentifier leaf); 
}


File : DefaultAugmentedInterface.java
package org.onosproject.yang.gen.v1.http.huawei.com.test.yangautoprefixinterface; 

import com.google.common.base.MoreObjects; 
import java.util.BitSet; 
import java.util.Objects; 
import org.onosproject.yang.model.InnerModelObject; 

/** 
 * Represents the implementation of augmentedInterface. 
 * 
 * <p> 
 * valueLeafFlags identify the leafs whose value are explicitly set 
 * Applicable in protocol edit and query operation. 
 * </p> 
 */ 
public class DefaultAugmentedInterface extends InnerModelObject implements AugmentedInterface { 
    protected short ds0ChannelNumber; 
    protected BitSet valueLeafFlags = new BitSet(); 

    @Override 
    public short ds0ChannelNumber() { 
        return ds0ChannelNumber; 
    } 

    @Override 
    public BitSet valueLeafFlags() { 
        return valueLeafFlags; 
    } 

    @Override 
    public void ds0ChannelNumber(short ds0ChannelNumber) { 
        valueLeafFlags.set(LeafIdentifier.DS0CHANNELNUMBER.getLeafIndex()); 
        this.ds0ChannelNumber = ds0ChannelNumber; 
    } 

    @Override 
    public int hashCode() { 
        return Objects.hash(ds0ChannelNumber, valueLeafFlags); 
    } 

    @Override 
    public boolean equals(Object obj) { 
        if (this == obj) { 
            return true; 
        } 
        if (obj instanceof DefaultAugmentedInterface) { 
            DefaultAugmentedInterface other = (DefaultAugmentedInterface) obj; 
            return 
                Objects.equals(ds0ChannelNumber, other.ds0ChannelNumber) && 
                Objects.equals(valueLeafFlags, other.valueLeafFlags); 
        } 
        return false; 
    } 

    @Override 
    public String toString() { 
        return MoreObjects.toStringHelper(getClass()) 
            .omitNullValues() 
            .add("ds0ChannelNumber", ds0ChannelNumber) 
            .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


    /** 
     * Creates an instance of defaultAugmentedInterface. 
     */ 
    public DefaultAugmentedInterface() { 
    } 


    @Override 
    public boolean isLeafValueSet(LeafIdentifier leaf) { 
        return valueLeafFlags.get(leaf.getLeafIndex()); 
    } 

}

leaf one {                         
    type string;
}

leaf two {                           
    type int32;
}

leaf-list three {
    type boolean;
}

leaf-list four {            
    type int16;
}
leaf mybits {
    type bits {
        bit disable-nagle {
            position 0;
        }
        bit auto-sense-speed {
            position 1;
        }
        bit Mb-only {
            position 2;
        }
    }
    default "auto-sense-speed";
}

File : Test.java

package org.onosproject.yang.gen.v1.http.huawei.com;

import java.util.BitSet;
import java.util.List;

/**
 * Abstraction of an entity which represents the functionality of test.
 */
public interface Test {

    /**
     * Identify the leaf of Test.
     */
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{
        
        ONE(1),
        /**
         * Represents two.
         */
        TWO(2),
        /**
         * Represents mybits.
         */
        MYBITS(3),
        /**
         * Represents three.
         */
        THREE(4),
        /**
         * Represents four.
         */
        FOUR(5);

        private int leafIndex;

        public int getLeafIndex() {
            return leafIndex;
        }

        LeafIdentifier(int value) {
            this.leafIndex = value;
        }
    }

    /**
     * Returns the attribute one.
     *
     * @return one value of one
     */
    String one();

    /**
     * Returns the attribute two.
     *
     * @return two value of two
     */
    int two();

    /**
     * Returns the attribute mybits.
     *
     * @return mybits value of mybits
     */
    BitSet mybits();

    /**
     * Returns the attribute three.
     *
     * @return three list of three
     */
    List<Boolean> three();

    /**
     * Returns the attribute four.
     *
     * @return four list of four
     */
    List<Short> four();

    /**
     * Returns the attribute valueLeafFlags.
     *
     * @return valueLeafFlags value of valueLeafFlags
     */
    BitSet valueLeafFlags();

    /**
     * Sets the attribute one.
     *
     * @param one value of one
     */
    void one(String one);

    /**
     * Sets the attribute two.
     *
     * @param two value of two
     */
    void two(int two);

    /**
     * Sets the attribute mybits.
     *
     * @param mybits value of mybits
     */
    void mybits(BitSet mybits);

    /**
     * Sets the attribute three.
     *
     * @param three list of three
     */
    void three(List<Boolean> three);

    /**
     * Sets the attribute four.
     *
     * @param four list of four
     */
    void four(List<Short> four);

    /**
     * Adds to the list of three.
     *
     * @param addTo value of three
     */
    void addToThree(Boolean addTo);

    /**
     * Adds to the list of four.
     *
     * @param addTo value of four
     */
    void addToFour(Short addTo);


    /**
     * Checks if the leaf value is set.
     *
     * @param leaf leaf whose value status needs to checked
     * @return result of leaf value set in object
     */
    boolean isLeafValueSet(LeafIdentifier leaf);
}



File : TestOpParam

package org.onosproject.yang.gen.v1.http.huawei.com;

import com.google.common.base.MoreObjects;
import java.util.ArrayList;
import java.util.BitSet;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import org.onosproject.yang.model.InnerModelObject;

/**
 * Represents the implementation of test.
 *
 * <p>
 * valueLeafFlags identify the leafs whose value are explicitly set
 * Applicable in protocol edit and query operation.
 * </p>
 */
public class TestOpParam extends InnerModelObject implements Test {
    protected String one;
    protected int two;
    protected BitSet mybits;
    protected List<Boolean> three;
    protected List<Short> four;
    protected BitSet valueLeafFlags = new BitSet();

    @Override
    public String one() {
        return one;
    }

    @Override
    public int two() {
        return two;
    }

    @Override
    public BitSet mybits() {
        return mybits;
    }

    @Override
    public List<Boolean> three() {
        return three;
    }

    @Override
    public List<Short> four() {
        return four;
    }

    @Override
    public BitSet valueLeafFlags() {
        return valueLeafFlags;
    }

    @Override
    public void one(String one) {
        valueLeafFlags.set(LeafIdentifier.ONE.getLeafIndex());
        this.one = one;
    }

    @Override
    public void two(int two) {
        valueLeafFlags.set(LeafIdentifier.TWO.getLeafIndex());
        this.two = two;
    }

    @Override
    public void mybits(BitSet mybits) {
        valueLeafFlags.set(LeafIdentifier.MYBITS.getLeafIndex());
        this.mybits = mybits;
    }

    @Override
    public void three(List<Boolean> three) {
        valueLeafFlags.set(LeafIdentifier.THREE.getLeafIndex());
        this.three = three;
    }

    @Override
    public void four(List<Short> four) {
        valueLeafFlags.set(LeafIdentifier.FOUR.getLeafIndex());
        this.four = four;
    }

    @Override
    public void addToThree(Boolean addTo) {
        if (three == null) {
            three = new ArrayList<>();
        }
        three.add(addTo);
    }


    @Override
    public void addToFour(Short addTo) {
        if (four == null) {
            four = new ArrayList<>();
        }
        four.add(addTo);
    }


    @Override
    public int hashCode() {
        return Objects.hash(one, two, mybits, three, four, valueLeafFlags);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof TestOpParam) {
            TestOpParam other = (TestOpParam) obj;
            return
                Objects.equals(one, other.one) &&
                Objects.equals(two, other.two) &&
                Objects.equals(mybits, other.mybits) &&
                Objects.equals(three, other.three) &&
                Objects.equals(four, other.four) &&
                Objects.equals(valueLeafFlags, other.valueLeafFlags);
        }
        return false;
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(getClass())
            .omitNullValues()
            .add("one", one)
            .add("two", two)
            .add("mybits", mybits)
            .add("three", three)
            .add("four", four)
            .add("valueLeafFlags", valueLeafFlags)
            .toString();
    }

    /**
     * Creates an instance of testOpParam.
     */
    public TestOpParam() {
    }


    @Override
    public boolean isLeafValueSet(LeafIdentifier leaf) {
        return valueLeafFlags.get(leaf.getLeafIndex());
    }


    @Override
    public void addAugmentation(InnerModelObject obj) {
    }

    @Override
    public void removeAugmentation(InnerModelObject obj) {
    }

    @Override
    public Map<Class<? extends InnerModelObject>, InnerModelObject> augmentations() {

        return null;
    }

    @Override
    public <T extends InnerModelObject> T augmentation(Class<T> c) {

        return null;
    }
}

File : test.yang

module test {

    yang-version 1;
    namespace "http://huawei.com";
    prefix "test";

    typedef percent {
        type uint8;
           description "Percentage";
    }

    leaf completed {
        type percent;
    }
}

File : Percent.java
package org.onosproject.yang.gen.v1.http.huawei.com.test;

import java.util.Objects;

/**
 * Represents the implementation of percent.
 */
public final class Percent {

    private short uint8;

    /**
     * Creates an instance of percent.
     */
    private Percent() {
    }

    /**
     * Creates an instance of uint8.
     *
     * @param uint8 value of uint8
     */
    public Percent(short uint8) {
        this.uint8 = uint8;
    }

    /**
     * Returns the object of percent for type uint8.
     *
     * @param value value of percent for type uint8
     * @return percent for type uint8
     */
    public static Percent of(short value) {
        return new Percent(value);
    }

    /**
     * Returns the attribute uint8.
     *
     * @return uint8 value of uint8
     */
    public short uint8() {
        return uint8;
    }
    /**
     * Sets the attribute uint8.
     *
     * @param uint8 value of uint8
     */
    public void uint8(short uint8) {
        this.uint8 = uint8;
    }

    @Override
    public int hashCode() {
        return Objects.hash(uint8);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof Percent) {
            Percent other = (Percent) obj;
            return
                Objects.equals(uint8, other.uint8);
        }
        return false;
    }

    @Override
    public String toString() {
        return String.valueOf(uint8);
    }
    /**
     * Returns the object of percent fromString input String percent.
     *
     * @param valInString value of input String
     * @return percent
     */
    public static Percent fromString(String valInString) {
        try {
            short tmpVal = Short.parseShort(valInString);
            return of(tmpVal);
        } catch (Exception e) {
            throw new IllegalArgumentException("not a valid input element");
        }
    }
}

File: test.yang
module Test {

    yang-version 1;
    namespace "http://huawei.com";
    prefix Ant;
    description "Interval before a route is declared invalid";

    leaf  packetType {
         type enumeration {
             enum "unbounded";
             enum ZERO;
           enum two;
             enum four;
         }         
       }
}

File : PacketTypeEnum.java

package org.onosproject.yang.gen.v1.http.huawei.com.test;

/**
 * Represents ENUM data of packetTypeEnum.
 */
public enum PacketTypeEnum {

    /**
     * Represents unbounded.
     */
    UNBOUNDED(0, "unbounded"),

    /**
     * Represents zERO.
     */
    ZERO(1, "ZERO"),

    /**
     * Represents two.
     */
    TWO(2, "two"),

    /**
     * Represents four.
     */
    FOUR(3, "four");

    private int packetTypeEnum;
    private String schemaName;

    /**
     * Creates an instance of packetTypeEnum.
     *
     * @param packetTypeEnum value of packetTypeEnum
     */
     PacketTypeEnum(int packetTypeEnum, String schemaName) {
        this.packetTypeEnum = packetTypeEnum;
        this.schemaName = schemaName;
    }

    /**
     * Returns the object of packetTypeEnum for.
     *
     * @param value value of packetTypeEnum for
     * @return packetTypeEnum for
     */
    public static PacketTypeEnum of(int value) {
        switch (value) {
            case 0:
                return PacketTypeEnum.UNBOUNDED;
            case 1:
                return PacketTypeEnum.ZERO;
            case 2:
                return PacketTypeEnum.TWO;
            case 3:
                return PacketTypeEnum.FOUR;
            default :
                throw new IllegalArgumentException("not a valid input element");
        }
    }
    /**
     * Returns the object of packetTypeEnum for.
     *
     * @param value value of packetTypeEnum for
     * @return packetTypeEnum for
     */
    public static PacketTypeEnum of(String value) {
        switch (value) {
            case "unbounded":
                return PacketTypeEnum.UNBOUNDED;
            case "ZERO":
                return PacketTypeEnum.ZERO;
            case "two":
                return PacketTypeEnum.TWO;
            case "four":
                return PacketTypeEnum.FOUR;
            default :
                throw new IllegalArgumentException("not a valid input element");
        }
    }
    /**
     * Returns the attribute packetTypeEnum.
     *
     * @return packetTypeEnum value of packetTypeEnum
     */
    public int packetTypeEnum() {
        return packetTypeEnum;
    }


    @Override
    public String toString() {
        return schemaName;
    }
}

File : test.yang
module test {
    yang-version 1;
    namespace "http://huawei.com";
    prefix "test";

    typedef ip-address {
        type union {
            type int32;
            type uint32;
        }
    }
}

File : IpAddressUnion.java
package org.onosproject.yang.gen.v1.http.huawei.com.test.ipaddress;

import java.util.Objects;
import java.util.BitSet;

/**
 * Represents the implementation of ipAddressUnion.
 */
public final class IpAddressUnion {
    private int int32;
    private long uint32;
    private BitSet setValue = new BitSet();

    /**
     * Creates an instance of ipAddressUnion.
     */
    private IpAddressUnion() {
    }

    /**
     * Creates an instance of int32.
     *
     * @param int32 value of int32
     */
    public IpAddressUnion(int int32) {
        setValue.set(0);
        this.int32 = int32;
    }

    /**
     * Creates an instance of uint32.
     *
     * @param uint32 value of uint32
     */
    public IpAddressUnion(long uint32) {
        setValue.set(1);
        this.uint32 = uint32;
    }

    /**
     * Returns the object of ipAddressUnion for type int32.
     *
     * @param value value of ipAddressUnion for type int32
     * @return ipAddressUnion for type int32
     */
    public static IpAddressUnion of(int value) {
        return new IpAddressUnion(value);
    }

    /**
     * Returns the object of ipAddressUnion for type uint32.
     *
     * @param value value of ipAddressUnion for type uint32
     * @return ipAddressUnion for type uint32
     */
    public static IpAddressUnion of(long value) {
        return new IpAddressUnion(value);
    }

    /**
     * Returns the attribute int32.
     *
     * @return int32 value of int32
     */
    public int int32() {
        return int32;
    }
    /**
     * Returns the attribute uint32.
     *
     * @return uint32 value of uint32
     */
    public long uint32() {
        return uint32;
    }
    /**
     * Sets the attribute int32.
     *
     * @param int32 value of int32
     */
    public void int32(int int32) {
        this.int32 = int32;
    }
    /**
     * Sets the attribute uint32.
     *
     * @param uint32 value of uint32
     */
    public void uint32(long uint32) {
        this.uint32 = uint32;
    }

    @Override
    public int hashCode() {
        return Objects.hash(int32, uint32);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof IpAddressUnion) {
            IpAddressUnion other = (IpAddressUnion) obj;
            return
                Objects.equals(int32, other.int32) &&
                Objects.equals(uint32, other.uint32);
        }
        return false;
    }

    @Override
    public String toString() {
        if (setValue.get(0)) {
            return String.valueOf(int32);
        }
        if (setValue.get(1)) {
            return String.valueOf(uint32);
        }
        return null;
    }
    /**
     * Returns the object of ipAddressUnion fromString input String ipAddressUnion.
     *
     * @param valInString value of input String
     * @return ipAddressUnion
     */
    public static IpAddressUnion fromString(String valInString) {
        try {
            int tmpVal = Integer.parseInt(valInString);
            return of(tmpVal);
        } catch (Exception e) {
        }
        try {
            long tmpVal = Long.parseLong(valInString);
            return of(tmpVal);
        } catch (Exception e) {
            throw new IllegalArgumentException("not a valid input element");
        }
    }
}

File : test.yang
module test {
    yang-version 1;
    namespace "http://huawei.com";
    prefix "test";

    typedef ip-address {
        type union {
            type int32;
            type uint16;
            type int64;
            type uint32;
            type string;
        }
    }
}

File : IpAddressUnion.java

package org.onosproject.yang.gen.v1.http.huawei.com.test.ipaddress;

import java.math.BigInteger;
import java.util.BitSet;
import java.util.Objects;

/**
 * Represents the implementation of ipAddressUnion.
 */
public final class IpAddressUnion {
    private static final int INT32_MIN_RANGE = -2147483648;
    private static final int INT32_MAX_RANGE = 2147483647;
    private static final BigInteger INT64_MIN_RANGE = new BigInteger("-9223372036854775808");
    private static final BigInteger INT64_MAX_RANGE = new BigInteger("9223372036854775807");
    private int int32;
    private int uint16;
    private long int64;
    private long uint32;
    private String string;
    private BitSet setValue = new BitSet();

    /**
     * Creates an instance of ipAddressUnion.
     */
    private IpAddressUnion() {
    }

    /**
     * Creates an instance of string.
     *
     * @param string value of string
     */
    public IpAddressUnion(String string) {
        setValue.set(4);
        this.string = string;
    }

    /**
     * Creates an instance of int32.
     *
     * @param int32 value of int32
     */
    public IpAddressUnion(int int32) {
        setValue.set(0);
        if (validateRange(INT32_MIN_RANGE, INT32_MAX_RANGE, int32)) {
            this.int32 = int32;
        } else {
            this.uint16 = int32;
    }
        }

    /**
     * Creates an instance of int64.
     *
     * @param int64 value of int64
     */
    public IpAddressUnion(long int64) {
        setValue.set(2);
        if (validateRange(INT64_MIN_RANGE, INT64_MAX_RANGE, int64)) {
            this.int64 = int64;
        } else {
            this.uint32 = int64;
    }
        }

    /**
     * Returns the object of ipAddressUnion for type string.
     *
     * @param value value of ipAddressUnion for type string
     * @return ipAddressUnion for type string
     */
    public static IpAddressUnion of(String value) {
        return new IpAddressUnion(value);
    }

    /**
     * Returns the object of ipAddressUnion for type int32.
     *
     * @param value value of ipAddressUnion for type int32
     * @return ipAddressUnion for type int32
     */
    public static IpAddressUnion of(int value) {
        return new IpAddressUnion(value);
    }

    /**
     * Returns the object of ipAddressUnion for type int64.
     *
     * @param value value of ipAddressUnion for type int64
     * @return ipAddressUnion for type int64
     */
    public static IpAddressUnion of(long value) {
        return new IpAddressUnion(value);
    }

    /**
     * Returns the attribute int32.
     *
     * @return int32 value of int32
     */
    public int int32() {
        return int32;
    }
    /**
     * Returns the attribute int64.
     *
     * @return int64 value of int64
     */
    public long int64() {
        return int64;
    }
    /**
     * Returns the attribute string.
     *
     * @return string value of string
     */
    public String string() {
        return string;
    }
    /**
     * Sets the attribute int32.
     *
     * @param int32 value of int32
     */
    public void int32(int int32) {
        this.int32 = int32;
    }
    /**
     * Sets the attribute uint16.
     *
     * @param uint16 value of uint16
     */
    public void uint16(int uint16) {
        this.uint16 = uint16;
    }
    /**
     * Sets the attribute int64.
     *
     * @param int64 value of int64
     */
    public void int64(long int64) {
        this.int64 = int64;
    }
    /**
     * Sets the attribute uint32.
     *
     * @param uint32 value of uint32
     */
    public void uint32(long uint32) {
        this.uint32 = uint32;
    }
    /**
     * Sets the attribute string.
     *
     * @param string value of string
     */
    public void string(String string) {
        this.string = string;
    }

    @Override
    public int hashCode() {
        return Objects.hash(int32, uint16, int64, uint32, string);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof IpAddressUnion) {
            IpAddressUnion other = (IpAddressUnion) obj;
            return
                Objects.equals(int32, other.int32) &&
                Objects.equals(uint16, other.uint16) &&
                Objects.equals(int64, other.int64) &&
                Objects.equals(uint32, other.uint32) &&
                Objects.equals(string, other.string);
        }
        return false;
    }

    @Override
    public String toString() {
        if (setValue.get(0)) {
            return String.valueOf(int32);
        }
        if (setValue.get(1)) {
            return String.valueOf(uint16);
        }
        if (setValue.get(2)) {
            return String.valueOf(int64);
        }
        if (setValue.get(3)) {
            return String.valueOf(uint32);
        }
        if (setValue.get(4)) {
            return string;
        }
        return null;
    }
    /**
     * Returns the object of ipAddressUnion fromString input String ipAddressUnion.
     *
     * @param valInString value of input String
     * @return ipAddressUnion
     */
    public static IpAddressUnion fromString(String valInString) {
        try {
            int tmpVal = Integer.parseInt(valInString);
            return of(tmpVal);
        } catch (Exception e) {
        }
        try {
            long tmpVal = Long.parseLong(valInString);
            return of(tmpVal);
        } catch (Exception e) {
        }
        try {
            String tmpVal = (valInString);
            return of(tmpVal);
        } catch (Exception e) {
            throw new IllegalArgumentException("not a valid input element");
        }
    }
    /**
     * Validates if value is in given range.validateRange.
     *
     * @param minRange value of minRange
     * @param minRange value of maxRange
     * @return  true if value is in range
     */
    private boolean validateRange(int minRange, int maxRange, int value) {
        return value >= minRange && value <= maxRange;
    }
    /**
     * Validates if value is in given range.validateRange.
     *
     * @param minRange value of minRange
     * @param minRange value of maxRange
     * @return  true if value is in range
     */
    private boolean validateRange(BigInteger minRange, BigInteger maxRange, long value) {
        BigInteger bigInteger = new BigInteger(" " + value);
        return bigInteger.compareTo(minRange) == 1 && bigInteger.compareTo(maxRange) == 1;
    }
}

File : ietf-network.yang
module ietf-network {
    yang-version 1;
    namespace "urn:ietf:params:xml:ns:yang:ietf-network";
    prefix nd;

    container networks {
        description
            "Serves as top-level container for a list of
            networks.";
        leaf id {
            type uint8;
            description
            "Identifies a network.";
        }
        container network {
            leaf network-id {
                type leafref {
                    path "/nd:networks/nd:id";
                }
            }
        }
        uses network-id;
    }
    grouping network-id {
        description
            "Serves as top-level container for a list of
            networks.";
        leaf network-id {
            type leafref {
                path "/nd:networks/nd:id";
            }
        }
    }
}

File : Networks.java
package org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.ietfnetwork;

import java.util.BitSet;
import org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.ietfnetwork.networks.Network;

/**
 * Abstraction of an entity which represents the functionality of networks.
 */
public interface Networks {

    /**
     * Identify the leaf of Networks.
     */
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{
        /**
         * Represents id.
         */
        ID(1),
        /**
         * Represents networkId.
         */
        NETWORKID(2);

        private int leafIndex;

        public int getLeafIndex() {
            return leafIndex;
        }

        LeafIdentifier(int value) {
            this.leafIndex = value;
        }
    }

    /**
     * Returns the attribute id.
     *
     * @return id value of id
     */
    short id();

    /**
     * Returns the attribute networkId.
     *
     * @return networkId value of networkId
     */
    Object networkId();

    /**
     * Returns the attribute valueLeafFlags.
     *
     * @return valueLeafFlags value of valueLeafFlags
     */
    BitSet valueLeafFlags();

    /**
     * Returns the attribute network.
     *
     * @return network value of network
     */
    Network network();

    /**
     * Sets the attribute id.
     *
     * @param id value of id
     */
    void id(short id);

    /**
     * Sets the attribute networkId.
     *
     * @param networkId value of networkId
     */
    void networkId(Object networkId);

    /**
     * Sets the attribute network.
     *
     * @param network value of network
     */
    void network(Network network);


    /**
     * Checks if the leaf value is set.
     *
     * @param leaf leaf whose value status needs to checked
     * @return result of leaf value set in object
     */
    boolean isLeafValueSet(LeafIdentifier leaf);
}


File : Networks.java
package org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.ietfnetwork.networks;

import java.util.BitSet;

/**
 * Abstraction of an entity which represents the functionality of network.
 */
public interface Network {

    /**
     * Identify the leaf of Network.
     */
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{
        /**
         * Represents networkId.
         */
        NETWORKID(1);

        private int leafIndex;

        public int getLeafIndex() {
            return leafIndex;
        }

        LeafIdentifier(int value) {
            this.leafIndex = value;
        }
    }

    /**
     * Returns the attribute networkId.
     *
     * @return networkId value of networkId
     */
    short networkId();

    /**
     * Returns the attribute valueLeafFlags.
     *
     * @return valueLeafFlags value of valueLeafFlags
     */
    BitSet valueLeafFlags();

    /**
     * Sets the attribute networkId.
     *
     * @param networkId value of networkId
     */
    void networkId(short networkId);


    /**
     * Checks if the leaf value is set.
     *
     * @param leaf leaf whose value status needs to checked
     * @return result of leaf value set in object
     */
    boolean isLeafValueSet(LeafIdentifier leaf);
}

File : ietf-network.yang
module ietf-network {
    yang-version 1;
    namespace "urn:ietf:params:xml:ns:yang:ietf-network";
    prefix nd;

    identity tunnel-type {
      description  "Base identity from which specific tunnel types are derived.";
    }

}

File : TunnelType.java

package org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.ietfnetwork;
/**
 * Represents the implementation of tunnelType.
 */
public abstract class TunnelType {

    /**
     * Returns the attribute tunnel-type.
     *
     * @return tunnel-type value of tunnel-type
     */
    public static String tunnelTypeToString() {
        return "tunnel-type";
    }

    /**
     * Returns the object of tunnelType fromString input String tunnelType.
     *
     * @param valInString value of input String
     * @return tunnelType
     */
    public static Class fromString(String valInString) {
        if (valInString.equals("tunnel-type")) {
            return TunnelType.class;
        }
        throw new IllegalArgumentException("not a valid input element");
    }
}

File : ietf-network.yang
module ietf-network {
    yang-version 1;
    namespace "urn:ietf:params:xml:ns:yang:ietf-network";
    prefix nd;

    identity tunnel-type {
      description  "Base identity from which specific tunnel types are derived.";
    }

    container network-id {
        description "Serves as top-level container for a list of networks.";
        leaf leaf-network-id {
            type identityref {
                base tunnel-type;
            }
        }
    }

}

File : TunnelType.java

package org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.ietfnetwork;
/**
 * Represents the implementation of tunnelType.
 */
public abstract class TunnelType {

    /**
     * Returns the attribute tunnel-type.
     *
     * @return tunnel-type value of tunnel-type
     */
    public static String tunnelTypeToString() {
        return "tunnel-type";
    }

    /**
     * Returns the object of tunnelType fromString input String tunnelType.
     *
     * @param valInString value of input String
     * @return tunnelType
     */
    public static Class fromString(String valInString) {
        if (valInString.equals("tunnel-type")) {
            return TunnelType.class;
        }
        throw new IllegalArgumentException("not a valid input element");
    }
}
 
File : NetworkId.java

package org.onosproject.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.ietfnetwork;

import java.util.BitSet;

/**
 * Abstraction of an entity which represents the functionality of networkId.
 */
public interface NetworkId {

    /**
     * Identify the leaf of NetworkId.
     */
    public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{
        /**
         * Represents leafNetworkId.
         */
        LEAFNETWORKID(1);

        private int leafIndex;

        public int getLeafIndex() {
            return leafIndex;
        }

        LeafIdentifier(int value) {
            this.leafIndex = value;
        }
    }

    /**
     * Returns the attribute leafNetworkId.
     *
     * @return leafNetworkId value of leafNetworkId
     */
    Class<? extends TunnelType> leafNetworkId();

    /**
     * Returns the attribute valueLeafFlags.
     *
     * @return valueLeafFlags value of valueLeafFlags
     */
    BitSet valueLeafFlags();

    /**
     * Sets the attribute leafNetworkId.
     *
     * @param leafNetworkId value of leafNetworkId
     */
    void leafNetworkId(Class<? extends TunnelType> leafNetworkId);


    /**
     * Checks if the leaf value is set.
     *
     * @param leaf leaf whose value status needs to checked
     * @return result of leaf value set in object
     */
    boolean isLeafValueSet(LeafIdentifier leaf);
}

File : test.yang
module Test {
    yang-version 1;
    namespace http://huawei.com;
    prefix Ant;
    typedef MyBits {
        type bits {
             bit disable-nagle {
                 position 0;
             }
             bit auto-sense-speed {
                 position 1;
             }
             bit Mb-only {
                 position 2;
             }
         }
    }
}

File : Bits.java

package org.onosproject.yang.gen.v1.http.huawei.com.test.mybits;

import java.util.BitSet;
import java.util.regex.Pattern;

/**
 * Represents ENUM data of bits.
 */
public enum Bits {

    /**
     * Represents disable-nagle.
     */
    DISABLE_NAGLE(0, "disable-nagle"),

    /**
     * Represents auto-sense-speed.
     */
    AUTO_SENSE_SPEED(1, "auto-sense-speed"),

    /**
     * Represents mb-only.
     */
    MB_ONLY(2, "Mb-only");

    private int bits;
    private String schemaName;

    /**
     * Creates an instance of bits.
     *
     * @param bits value of bits
     */
     Bits(int bits, String schemaName) {
        this.bits = bits;
        this.schemaName = schemaName;
    }

    /**
     * Returns the object of bits for.
     *
     * @param value value of bits for
     * @return bits for
     */
    public static Bits of(int value) {
        switch (value) {
            case 0:
                return Bits.DISABLE_NAGLE;
            case 1:
                return Bits.AUTO_SENSE_SPEED;
            case 2:
                return Bits.MB_ONLY;
            default :
                throw new IllegalArgumentException("not a valid input element");
        }
    }
    /**
     * Returns the object of bits for.
     *
     * @param value value of bits for
     * @return bits for
     */
    public static Bits of(String value) {
        switch (value) {
            case "disable-nagle":
                return Bits.DISABLE_NAGLE;
            case "auto-sense-speed":
                return Bits.AUTO_SENSE_SPEED;
            case "Mb-only":
                return Bits.MB_ONLY;
            default :
                throw new IllegalArgumentException("not a valid input element");
        }
    }
    /**
     * Returns the attribute bits.
     *
     * @return bits value of bits
     */
    public int bits() {
        return bits;
    }

    /**
     * Returns the object of bits fromString input String bits.
     *
     * @param valInString value of input String
     * @return bits
     */
    public static BitSet fromString(String valInString) {
        BitSet tmpVal = new BitSet();
        String[] bitNames = valInString.trim().split(Pattern.quote(" "));
        for (String bitName : bitNames) {
            Bits bits = of(bitName);
            if (bits != null) {
                tmpVal.set(bits.bits());
            }
        }
        if (tmpVal.isEmpty()) {
            throw new IllegalArgumentException("not a valid input element");
        }
        return tmpVal;
    }
    public static String toString(BitSet bits) {
        StringBuilder sBuild = new StringBuilder("");
        if (bits.get(Bits.DISABLE_NAGLE.bits())) {
            sBuild.append("disable-nagle");
            sBuild.append(" ");
        }
        if (bits.get(Bits.AUTO_SENSE_SPEED.bits())) {
            sBuild.append("auto-sense-speed");
            sBuild.append(" ");
        }
        if (bits.get(Bits.MB_ONLY.bits())) {
            sBuild.append("Mb-only");
            sBuild.append(" ");
        }
        return sBuild.toString();
    }
}
 
 
File: MyBits.java

package org.onosproject.yang.gen.v1.http.huawei.com.test;

import java.util.BitSet;
import org.onosproject.yang.gen.v1.http.huawei.com.test.mybits.Bits;
import java.util.Objects;

/**
 * Represents the implementation of myBits.
 */
public final class MyBits {

    private BitSet bits;

    /**
     * Creates an instance of myBits.
     */
    private MyBits() {
    }

    /**
     * Creates an instance of bits.
     *
     * @param bits value of bits
     */
    public MyBits(BitSet bits) {
        this.bits = bits;
    }

    /**
     * Returns the object of myBits for type bits.
     *
     * @param value value of myBits for type bits
     * @return myBits for type bits
     */
    public static MyBits of(BitSet value) {
        return new MyBits(value);
    }

    /**
     * Returns the attribute bits.
     *
     * @return bits value of bits
     */
    public BitSet bits() {
        return bits;
    }
    /**
     * Sets the attribute bits.
     *
     * @param bits value of bits
     */
    public void bits(BitSet bits) {
        this.bits = bits;
    }

    @Override
    public int hashCode() {
        return Objects.hash(bits);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }
        if (obj instanceof MyBits) {
            MyBits other = (MyBits) obj;
            return
                Objects.equals(bits, other.bits);
        }
        return false;
    }

    @Override
    public String toString() {
        return Bits.toString(bits);
    }
    /**
     * Returns the object of myBits fromString input String myBits.
     *
     * @param valInString value of input String
     * @return myBits
     */
    public static MyBits fromString(String valInString) {
        try {
            BitSet tmpVal = Bits.fromString(valInString);
            return of(tmpVal);
        } catch (Exception e) {
            throw new IllegalArgumentException("not a valid input element");
        }
    }
}
 

File : test.yang
module Test {
   yang-version 1;
   namespace http://huawei.com;
   prefix Ant;

   typedef MyBinary {
      type binary {
         length "4";
      }
   }
}

File: MyBinary.java
package org.onosproject.yang.gen.v1.http.huawei.com.rev20160718.test;
import java.util.Objects;
import com.google.common.base.MoreObjects;
import java.util.Base64;

public final class MyBinary {
   private byte[] binary;
   private MyBinary() {
   }

   public MyBinary(byte[] value) {
      this.binary = value;
   }

   public static MyBinary of(byte[] value) {
      return new MyBinary(value);
   }
 
   public byte[] binary() {
      return binary;
   }
 
   @Override
   public int hashCode() {
      return Objects.hash(binary);
   }
 
   @Override
   public boolean equals(Object obj) {
      if (this == obj) {
         return true;
      }
      if (obj instanceof MyBinary) {
         MyBinary other = (MyBinary) obj;
         return Objects.equals(binary, other.binary);
      }
      return false;
   }
 
   @Override
   public String toString() {
      return Base64.getEncoder().encodeToString(binary);
   }
 
   public static MyBinary fromString(String valInString) {
      try {
         byte[] tmpVal = Base64.getDecoder().decode(valInString);
         return of(tmpVal);
      } catch (Exception e) {
      }
      return null;
   }
}