Page History

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 

File : NetworkService.java

File : NetworkService.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;

public interface NetworkService {

    List<Networklist> getNetworklist();

    void setNetworklist(List<Networklist> networklist);
}


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

import java.util.List;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
import org.apache.felix.scr.annotations.Service;
import org.onosproject.yang.gen.v1.urn.tbd.params.xml.ns.yang.nodes.rev20140309.network.Networklist;
import org.slf4j.Logger;
import static org.slf4j.LoggerFactory.getLogger;

@Component (immediate = true)
@Service
public class NetworkManager implements NetworkService {

    private final Logger log = getLogger(getClass());

    @Activaterpctest.RpcTestInput; 

/** 
 * Abstraction of an entity which represents the functionality of network. 
 */ 
public interface NetworkService { 
    /** 
    public void* activate() {
   Service interface of rpcTest. 
     //TODO: YANG utils generated code
          log.info("Started");* 
     * @param inputVar input of service interface rpcTest 
    }

 */   @Deactivate
    public void deactivaterpcTest(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; //TODO: YANG utils generated code
          log.info("Stopped");
    }

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

    @Override/** 
    public List<Networklist>* getNetworklist() {
   Returns the attribute networklist. 
     //TODO: YANG utils generated code* 
     * @return networklist list of returnnetworklist null;
    }

 */   @Override
    public void setNetworklist(List<Networklist> networklist(); {
 
    /** 
    //TODO: YANG utils generated code * Sets the attribute networklist. 
    }
}

File : acme-system.yang
module acme-system {
    

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

 import ietf-yang-types { prefix yang; }include "acme-types";
 
 import ietf-inet-types { prefix inet; }
}

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

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>";

     descriptionorganization
      "ThisIETF moduleNETMOD contains(NETCONF aData collectionModeling ofLanguage) generally useful derivedWorking Group";

       YANG data types.

contact
      "WG CopyrightWeb: (c) 2013 IETF Trust and the persons identified as
       authors of the code.  All rights reserved.

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

       WG Chair: David Kessens
        Redistribution and use in source and binary forms, with or <mailto:david.kessens@nsn.com>

       withoutWG modification,Chair: isJuergen permittedSchoenwaelder
 pursuant to, and subject
       to the license terms contained in, the Simplified BSD License <mailto:j.schoenwaelder@jacobs-university.de>

       setEditor: forth in Section 4.c of the IETF Trust's Legal ProvisionsJuergen Schoenwaelder
       Relating to IETF Documents
       (http://trustee.ietf.org/license-info).<mailto:j.schoenwaelder@jacobs-university.de>";

     description
  This version of this YANG"This module contains isa partcollection of RFCgenerally 6991;useful seederived
       theYANG RFC itself for full legal notices.";data types.

     revision 2013-07-15 {
       description
   Copyright (c) 2013 IETF Trust and the persons identified as
      "This revisionauthors addsof the followingcode.  newAll data types:rights reserved.

       Redistribution and - yang-identifier
      use in source and binary forms, with or
   - hex-string
   without modification, is permitted pursuant to, -and uuidsubject
       to the - dotted-quad";
       referencelicense terms contained in, the Simplified BSD License
       set "RFCforth 6991:in CommonSection YANG4.c Data Types";
     }

of the IETF Trust's Legal Provisions
       Relating revision 2010-09-24 {to IETF Documents
       description(http://trustee.ietf.org/license-info).

        "Initial revision.";
       referenceThis version of this YANG module is part of RFC 6991; see
       the "RFC 6021:itself Commonfor YANGfull Datalegal Typesnotices.";

     }
revision 2013-07-15 {
     typedef uuid {description
       type string {
     "This revision adds the following new data types:
     pattern '    - 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 : acme-system.yang
module acme-system {
     namespace "http://acme.example.com/system";
     prefix "acme"

File : Login.java
public interface Login extends AugmentationHolder  {
    String message();
    interface organization LoginBuilder {"ACME Inc.";
        String message()contact "joe@acme.example.com";
     description
    LoginBuilder message(String message);
  "The module for entities implementing the Login build()ACME system.";
    }
}

File : SystemBuilder.java
public class LoginBuilder implements Login.LoginBuilder {
 revision 2007-06-09 {
         privatedescription String message"Initial revision.";

     @Override}
    public Stringcontainer message()system {
        return message;
    }

    @Overrideleaf-list domain-search {
    public LoginBuilder message(String message) {
        this.message =type messagestring;
        return this;
    }

    @Override
description "List of domain publicnames Login build() {to search";
        return new LoginImpl(this);
    }
    public LoginBuilder() {}
    }.
    public.
 final class  .
}

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 { LoginImpl implements Login {
        private List<AugmentedInfo> augmentedInfoList = new ArrayList<>();
        private String message;

    /** 
   @Override
  * Identify the leaf of System. public
 String message() {
  */ 
    public enum LeafIdentifier implements  return message;
org.onosproject.yang.model.LeafIdentifier{ 
        /** }

        @Override
 * Represents domainSearch. 
    public int hashCode() {
  */ 
         return Objects.hash(messageDOMAINSEARCH(1); 

        }

private int leafIndex; 
     @Override
        public booleanint equalsgetLeafIndex(Object obj) { 
            ifreturn (this == obj) {
leafIndex; 
        } 

         return true;LeafIdentifier(int value) { 
            }
  this.leafIndex = value; 
        } 
 if (obj instanceof LoginImpl)} {

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

    /** 
     * Returns the attribute  Objects.equals(message, other.message);
valueLeafFlags. 
     * 
     * @return }
valueLeafFlags value of valueLeafFlags 
        return false;*/ 
        }BitSet valueLeafFlags(); 

        @Override/** 
     * Sets the publicattribute String toString() {domainSearch. 
     * 
     * return MoreObjects.toStringHelper(getClass())
    @param domainSearch list of domainSearch 
     */ 
    void  .add("message", message)domainSearch(List<String> domainSearch); 

    /** 
     * Adds to the list of domainSearch.toString(); 
     *   }
     * @param addTo publicvalue LoginImpl(LoginBuilder builderObject) {of domainSearch 
     */ 
    void  this.message = builderObject.message();addToDomainSearch(String addTo); 


    /** 
   }

  * Checks if the leaf value @Override
is set. 
     * public
 void addAugmentation(AugmentedInfo value) {
 * @param leaf leaf whose value status needs to   getAugmentedInfoList().add(value);checked 
     * @return result }

of leaf value set in  object  @Override
     */ 
   public List<AugmentedInfo>boolean getAugmentedInfoListisLeafValueSet(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  return augmentedInfoList;
        }

        @Override
        public void removeAugmentation() {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; 
     getAugmentedInfoListprotected BitSet valueLeafFlags = new BitSet().clear(); 

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

    @Override 
}

File : acme-system.yang
File : acme-system.yang
module acme-system {
     namespace "http://acme.example.com/system";
    private Stringprefix addThisBeforeClass"acme";

    @Override
 organization   public String name() {"ACME Inc.";
        return namecontact "joe@acme.example.com";
    }

    @Override description
    public String fullName() {
 "The module for entities implementing the  return fullNameACME system.";
    }

 revision   @Override2007-06-09 {
    public String addThisBeforeClass() {
  description "Initial revision.";
    return addThisBeforeClass;}
    }

 container system  @Override{
    public LoginBuilder name(String name) {
    leaf host-name {
  this.name = name;
        return this;
   type }string;

    @Override
    public LoginBuilder fullName(String fullName) {
     description "Hostname for this.fullName = fullName system";
        return this;
    }

     @Override}
    public LoginBuilder addThisBeforeClass(String addThisBeforeClass) {
 .
       this.addThisBeforeClass = addThisBeforeClass;
    .
}

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. 
     */     return this;
    }

    @Override
    public Login build() {
        return new LoginImpl(this);
    }
    public LoginBuilder() {
    }
    public finalenum classLeafIdentifier LoginImpl implements Login {org.onosproject.yang.model.LeafIdentifier{ 
        private/** List<AugmentedInfo>
 augmentedInfoList = new ArrayList<>();
       * privateRepresents StringhostName. name;
        private String*/ fullName;
        private String addThisBeforeClass;HOSTNAME(1); 

         @Overrideprivate int leafIndex; 

        public Stringint namegetLeafIndex() { 
            return nameleafIndex; 
        } 

        @Override
   LeafIdentifier(int value) { 
     public String fullName() {
    this.leafIndex = value; 
     return fullName;
   } 
    } 

        @Override/** 
     * Returns the public String addThisBeforeClass() {attribute hostName. 
     * 
     * return@return addThisBeforeClass;
hostName value of  hostName    }

      */  @Override
        public int hashCodeString hostName(); {

    /** 
     * Returns returnthe attribute ObjectsvalueLeafFlags.hash(name, fullName, addThisBeforeClass);
 
     * 
   }

  * @return valueLeafFlags value of valueLeafFlags @Override
     */ 
   public booleanBitSet equalsvalueLeafFlags(Object obj); {

    /** 
     * Sets ifthe (this == obj) {attribute hostName. 
     * 
     * @param hostName value of returnhostName true;
     */ 
    void  }hostName(String hostName); 


    /** 
     * Checks if (obj instanceof LoginImpl) { the leaf value is set. 
     * 
     * @param leaf leaf whose value LoginImplstatus otherneeds =to (LoginImpl)checked obj;
     * @return result of leaf value set in object 
   return
  */ 
    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;  Objects.equals(name, other.name) &&
                     Objects.equals(fullName, other.fullName) &&
                     Objects.equals(addThisBeforeClass, other.addThisBeforeClass);
            }
            return false;
        }

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() { 
        @Override
   return hostName; 
    } 

    @Override 
    public StringBitSet toStringvalueLeafFlags() { 
            return MoreObjects.toStringHelper(getClass())return valueLeafFlags; 
    } 

    @Override 
    public void .add("name", name)hostName(String hostName) { 
        valueLeafFlags.set(LeafIdentifier.HOSTNAME.getLeafIndex()); 
        .add("fullName", fullName)this.hostName = hostName; 
    } 

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

   }
 @Override 
    public boolean public LoginImplequals(LoginBuilderObject builderObjectobj) { 
        if    (this.name == builderObject.name();obj) { 
            this.fullName = builderObject.fullName();
return true; 
        } 
     this.addThisBeforeClass = builderObject.addThisBeforeClass();   if (obj instanceof DefaultSystem) { 
        }

    DefaultSystem other = (DefaultSystem) obj; @Override
        public  void addAugmentation(AugmentedInfo value)return {
            getAugmentedInfoList().add(value);    Objects.equals(hostName, other.hostName) && 
        }

        @Override
  Objects.equals(valueLeafFlags, other.valueLeafFlags); 
      public List<AugmentedInfo> getAugmentedInfoList()} {
        return false; 
  return augmentedInfoList;
 } 

    @Override  }

    public String toString() { @Override
        public void removeAugmentation(return MoreObjects.toStringHelper(getClass()) {
            getAugmentedInfoList().clearomitNullValues(); 
            .add("hostName", hostName) }
      }
}

Generated java files for list's holder(another list):

File : Login.java
public interface Login extends AugmentationHolder  {
    String name();
List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.login.Login> login();
    interface LoginBuilder {
        String name();
List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.login.Login> login();
        LoginBuilder name(String name);
        LoginBuilder login(List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem
                .login      .add("valueLeafFlags", valueLeafFlags) 
            .toString(); 
    } 


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


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

File : LoginBuilder.java
public class LoginBuilder implements Login.LoginBuilder {
    private String name;
    private List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609.acmesystem.login.Login> login;

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

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

}

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 {
        return logindescription "Initial revision.";
    }
    list login {
    @Override
    key "name";
      public LoginBuilder name(String name)list login {
        this.name = name    key "name";
         return this;   leaf name {
    }

       @Override
    public LoginBuilder login(List<org.onosproject.yang.gen.v1.http.acme.example.com.system.rev20070609type string;
            .acmesystem}
            .login.Login> login)leaf full-name {
        this.login = login;
      type  return thisstring;
    }
    .
    .}
    .
    public final class LoginImpl implementsleaf Loginclass {
    .
    .
    .
    }
}

Note: Qualified name is typeused int8;for 
child node  "login".     }
    }
    container connection { 
        container source {
            uses endpoint;
        }
 
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 container destination {
leaf of Login. 
     */ 
    public enum LeafIdentifier  uses endpoint;implements org.onosproject.yang.model.LeafIdentifier{ 
        /** }
    }
    .
 * Represents name. .
    .
}

File : Connection.java
package org.onosproject.yang.gen.v1.http.test.example.com.rev20160718.test;

import org.onosproject.yang.gen.v1.http.test.example.com.rev20160718.test.connection.Source;

public interface Connection {

     */ 
       Source sourceNAME(1); 

    interface ConnectionBuilder {   private int leafIndex; 

        Sourcepublic int sourcegetLeafIndex();

 { 
           ConnectionBuilder source(Source source);
return leafIndex; 
        } 

        Connection build();
LeafIdentifier(int value) { 
          }
}

File : Source.java

package org.onosproject.yang.gen.v1.http.test.example.com.rev20160718.test.connection;

public interface Source {
this.leafIndex = value; 
        } 
    int} address();

    byte port();

/** 
     interface* SourceBuilderReturns {

the attribute name. 
     int* address();

     * @return name byte port();

value of name 
     */ 
    SourceBuilderString addressname(int address); 

    /** 
   SourceBuilder port(byte port);

     * Returns the attribute valueLeafFlags. 
     Source* build();
    }
}

module Test {
    namespace "http://test.example.com/";
    prefix "test";
    organization "ACME Inc.";
    grouping endpoint { 
        leaf address {
      .toString();
      type int32; }

        } 
 public SfpInputImpl(SfpInputBuilder builderObject) {
    leaf port {
           this.port = builderObject.port();type int8; 
        }
    }
}
File   : Sfpoutput.java
package org.onosproject.yang.gen.v1.http.huawei.com.rev20160526.sfc.sfp;

public interface SfpOutput {

 container connection { 
        container source {
            Stringuses path()endpoint;
        }
    interface SfpOutputBuilder    container destination {

            Stringuses path()endpoint;

        }
  SfpOutputBuilder path(String path);

 }
    .
    SfpOutput build();.
     }.
}

File : SfpOutputBuilderConnection.java

package org.onosproject.yang.gen.v1.http.huaweitest.example.com.rev20160526.sfc.sfptest; 

import org.onosproject.yang.gen.v1.http.test.example.com.googletest.commonconnection.base.MoreObjectsDestination; 
import java.util.Objects;
public class SfpOutputBuilder implements SfpOutput.SfpOutputBuilder {

     private String path;

    @Overrideorg.onosproject.yang.gen.v1.http.test.example.com.test.connection.Source; 

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

    public/** String
 path() {
   * Returns the attribute source. 
 return path;
   * }

    @Override
 * @return source publicvalue SfpOutputBuilderof path(String path) {source 
     */ 
   this.path =Source pathsource(); 

    /** 
    return this;
* Returns the attribute }

    @Overridedestination. 
    public SfpOutput* build() {
     * @return destination value returnof newdestination SfpOutputImpl(this);
     */ }

    publicDestination SfpOutputBuilderdestination(); {

    }
/** 
    public final* classSets SfpOutputImplthe implementsattribute SfpOutputsource. {

     * 
   private String path;

* @param source value of    source @Override
     */ 
   public Stringvoid pathsource(Source source); {

    /** 
     * Sets the return path;attribute destination. 
     * 
   }

  * @param destination value of destination  @Override
     */ 
   public intvoid hashCodedestination(Destination destination); 

}

File : link.yang
module link {
    yang-version 1;
    namespace http://huawei.com;
    prefix Ant;
    container link {
        choice interfaceType {
) {
            return Objects.hash(path);
         }

         @Override
         public boolean equals(Object obj) {
            if (this == obj) {
                     return true;
            }
            if (obj instanceof SfpOutputImpl) {
                     SfpOutputImpl other = (SfpOutputImpl) obj;
                     return Objects.equals(path, other.path);
            }
   case ethernerType {
       return false;
        leaf }

ethernet { type        @Overridestring; }
         public String toString() {}
            return MoreObjects.toStringHelper(getClass())case p2pType {
                .add("path", path)
   leaf p2p { type string; }
             .toString();
 }
        }

     }
}

File : InterfaceType.java

package  public SfpOutputImpl(SfpOutputBuilder builderObject) {
            this.path = builderObject.path();
         }
     }
}

File: sfc.yang
module Sfc {
    yang-version 1;
       return Objects.hash(eventClass, severity)namespace http://huawei.com;
        }
prefix Ant;
    rpc SFP   @Override{
        public boolean equals(Object obj) input {
           if (this == obj)leaf port {
                returntype truestring;
            }
          }
  if (obj instanceof TestImpl) {
    output {
           TestImpl otherleaf = (TestImpl) obj;path {
                return Objects.equals(eventClass, other.eventClass) &&type string;
            }
           Objects.equals(severity, other.severity);}
    }
}

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  }
            return false;
        }

        @Overrideorg.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. 
     * 
  public String toString() {
* @param inputVar input of service interface sfp 
    return MoreObjects.toStringHelper(getClass())
         * @return sfpOutput output of service interface sfp 
     */ 
    SfpOutput  .add("eventClass", eventClass)
                    .add("severity", severity)
         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. .toString();
     */ 
  }

  public enum LeafIdentifier implements org.onosproject.yang.model.LeafIdentifier{ 
   public TestImpl(TestBuilder builderObject) {
  /** 
         this.eventClass* =Represents builderObject.eventClass();port. 
         */ 
  this.severity = builderObject.severity();
      PORT(1); 

         }

private int leafIndex; 

        public int getLeafIndex() { 
          @Override  return leafIndex; 
        public void addAugmentation(AugmentedInfo} 

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

    /** 
     * Returns  @Overridethe attribute port. 
     * 
     * @return  public List<AugmentedInfo> getAugmentedInfoList() {
   port value of port 
     */ 
    String port(); 

    /** 
     * Returns the attribute returnvalueLeafFlags. augmentedInfoList;
     * 
   }

  * @return valueLeafFlags value of valueLeafFlags @Override
     */ 
   public voidBitSet removeAugmentationvalueLeafFlags(); {

    /** 
     *  getAugmentedInfoList().clear();Sets the attribute port. 
     * 
  }
   *  }
}

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()); 
    } 

}