├── .gitignore
├── .travis.yml
├── README.md
├── grpc-eureka-java-starter
    ├── META-INF
    │   └── spring.factories
    ├── pom.xml
    └── src
    │   └── main
    │       └── java
    │           └── org
    │               └── exampledriven
    │                   └── grpc
    │                       └── eureka
    │                           └── GrpcEurekaConfiguration.java
├── grpc-eureka-java
    ├── pom.xml
    └── src
    │   └── main
    │       └── java
    │           └── org
    │               └── exampledriven
    │                   └── grpc
    │                       └── eureka
    │                           ├── EurekaNameResolver.java
    │                           └── EurekaNameResolverProvider.java
└── pom.xml


/.gitignore:
--------------------------------------------------------------------------------
1 | target
2 | *.iml
3 | .idea


--------------------------------------------------------------------------------
/.travis.yml:
--------------------------------------------------------------------------------
1 | language: java
2 | jdk: oraclejdk8


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/README.md:
--------------------------------------------------------------------------------
 1 | [![Maven Central](https://maven-badges.herokuapp.com/maven-central/com.github.exampledriven/grpc-eureka-java/badge.svg)](https://maven-badges.herokuapp.com/com.github.exampledriven/grpc-eureka-java/rsql-parser)
 2 | 
 3 | [![Build Status](https://travis-ci.org/ExampleDriven/grpc-eureka-java.svg?branch=master)](https://travis-ci.org/ExampleDriven/grpc-eureka-java)
 4 | 
 5 | # GRPC, Eureka integration in Java
 6 | 
 7 | This project integrates GRPC with Eureka, the best way to understand how it works is to look at the [example code](https://github.com/ExampleDriven/spring-boot-grpc-example)
 8 | 
 9 | ## Server setup
10 | The server does not need any special setup, it should just start GRPC the usual way and register itself to Eureka the usual way
11 | 
12 | ## Client setup
13 | 
14 | ### Using the Spring Boot Starter
15 | 
16 | 1. Add the starter dependency to your project
17 | ```xml
18 |     <parent>
19 |         <groupId>com.github.exampledriven</groupId>
20 |         <artifactId>grpc-eureka-java-starter</artifactId>
21 |         <version>version</version>
22 |     </parent>
23 | ```
24 | 
25 | 
26 | 2. Set the `grpc.eureka.service-id` property to the service id of your server
27 | 
28 | 3. A default instance of ManagedChannel is auto created for you. You can use it like this
29 | 
30 | ```Java
31 | 
32 |     @Autowired
33 |     ManagedChannel managedChannel;
34 |     
35 |     @PostConstruct
36 |     private void initializeClient() {
37 | 
38 |         bookServiceBlockingStub = BookServiceGrpc.newBlockingStub(managedChannel);
39 | 
40 |     }     
41 |     
42 | ```
43 | 
44 | ## Without using Spring Boot Starter
45 | 
46 | 1. Add the following dependency 
47 | 
48 | ```xml
49 |     <parent>
50 |         <groupId>com.github.exampledriven</groupId>
51 |         <artifactId>grpc-eureka-java</artifactId>
52 |         <version>version</version>
53 |     </parent>
54 | ```    
55 | 
56 | 2. You have to manually create an instance of ManagedChannel like this
57 | 
58 | ```Java
59 |         return ManagedChannelBuilder
60 |                 .forTarget("eureka://" + eurekaServiceId)
61 |                 .nameResolverFactory(new EurekaNameResolverProvider(eurekaClientConfig, "grpc.port"))
62 |                 .loadBalancerFactory(RoundRobinLoadBalancerFactory.getInstance())
63 |                 .usePlaintext(true)
64 |                 .build();
65 | ```


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/grpc-eureka-java-starter/META-INF/spring.factories:
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1 | org.springframework.boot.autoconfigure.EnableAutoConfiguration=org.exampledriven.grpc.eureka.GrpcEurekaConfiguration


--------------------------------------------------------------------------------
/grpc-eureka-java-starter/pom.xml:
--------------------------------------------------------------------------------
 1 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 2 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 3 |     <modelVersion>4.0.0</modelVersion>
 4 | 
 5 |     <parent>
 6 |         <groupId>com.github.exampledriven</groupId>
 7 |         <artifactId>grpc-eureka-java-parent</artifactId>
 8 |         <version>1.0.0-SNAPSHOT</version>
 9 |     </parent>
10 | 
11 |     <artifactId>grpc-eureka-java-starter</artifactId>
12 |     <packaging>jar</packaging>
13 | 
14 |     <name>GRPC Eureka Java integration Starter</name>
15 | 
16 |     <url>https://github.com/ExampleDriven/</url>
17 | 
18 |     <description>Spring Boot Starter for Eureka integration with GRPC</description>
19 | 
20 |     <organization>
21 |         <name>Exampledriven</name>
22 |         <url>exampledriven.wordpress.com</url>
23 |     </organization>
24 |     <licenses>
25 |         <license>
26 |             <name>Apache License, Version 2.0</name>
27 |             <url>http://www.apache.org/licenses/LICENSE-2.0</url>
28 |         </license>
29 |     </licenses>
30 | 
31 |     <developers>
32 |         <developer>
33 |             <id>szantop</id>
34 |             <name>Peter Szanto</name>
35 |             <organization>Exampledriven</organization>
36 |             <organizationUrl>exampledriven.wordpress.com</organizationUrl>
37 |             <roles>
38 |                 <role>Project lead</role>
39 |             </roles>
40 |         </developer>
41 | 
42 |     </developers>
43 | 
44 |     <properties>
45 |         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
46 |         <maven.compiler.source>1.8</maven.compiler.source>
47 |         <maven.compiler.target>1.8</maven.compiler.target>
48 |         <grpc.version>0.15.0</grpc.version>
49 |     </properties>
50 | 
51 |     <dependencies>
52 | 
53 |         <dependency>
54 |             <groupId>com.github.exampledriven</groupId>
55 |             <artifactId>grpc-eureka-java</artifactId>
56 |             <version>1.0.0-SNAPSHOT</version>
57 |         </dependency>
58 | 
59 |         <dependency>
60 |             <groupId>org.springframework</groupId>
61 |             <artifactId>spring-context</artifactId>
62 |             <version>4.3.3.RELEASE</version>
63 |             <scope>provided</scope>
64 |         </dependency>
65 | 
66 |         <dependency>
67 |             <groupId>org.springframework.boot</groupId>
68 |             <artifactId>spring-boot-autoconfigure</artifactId>
69 |             <version>1.4.1.RELEASE</version>
70 |             <scope>provided</scope>
71 |         </dependency>
72 | 
73 |         <dependency>
74 |             <groupId>io.grpc</groupId>
75 |             <artifactId>grpc-stub</artifactId>
76 |             <scope>provided</scope>
77 |         </dependency>
78 | 
79 |         <dependency>
80 |             <groupId>com.netflix.eureka</groupId>
81 |             <artifactId>eureka-client</artifactId>
82 |             <scope>provided</scope>
83 |         </dependency>
84 | 
85 |     </dependencies>
86 | 
87 | </project>


--------------------------------------------------------------------------------
/grpc-eureka-java-starter/src/main/java/org/exampledriven/grpc/eureka/GrpcEurekaConfiguration.java:
--------------------------------------------------------------------------------
 1 | package org.exampledriven.grpc.eureka;
 2 | 
 3 | import com.netflix.discovery.EurekaClientConfig;
 4 | import io.grpc.ManagedChannel;
 5 | import io.grpc.ManagedChannelBuilder;
 6 | import io.grpc.util.RoundRobinLoadBalancerFactory;
 7 | import org.springframework.beans.factory.annotation.Autowired;
 8 | import org.springframework.beans.factory.annotation.Value;
 9 | import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
10 | import org.springframework.context.annotation.Bean;
11 | import org.springframework.context.annotation.Configuration;
12 | 
13 | @Configuration
14 | public class GrpcEurekaConfiguration {
15 | 
16 |     @Value("${grpc.eureka.service-id}")
17 |     private String eurekaServiceId;
18 | 
19 |     @Autowired
20 |     EurekaClientConfig eurekaClientConfig;
21 | 
22 |     @Bean
23 |     @ConditionalOnMissingBean(ManagedChannel.class)
24 |     public ManagedChannel defaultManagedChannel() {
25 | 
26 |         return ManagedChannelBuilder
27 |                 .forTarget("eureka://" + eurekaServiceId)
28 |                 .nameResolverFactory(new EurekaNameResolverProvider(eurekaClientConfig, "grpc.port"))
29 |                 .loadBalancerFactory(RoundRobinLoadBalancerFactory.getInstance())
30 |                 .usePlaintext(true)
31 |                 .build();
32 | 
33 |     }
34 | 
35 | }
36 | 


--------------------------------------------------------------------------------
/grpc-eureka-java/pom.xml:
--------------------------------------------------------------------------------
  1 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  3 |     <modelVersion>4.0.0</modelVersion>
  4 | 
  5 |     <parent>
  6 |         <groupId>com.github.exampledriven</groupId>
  7 |         <artifactId>grpc-eureka-java-parent</artifactId>
  8 |         <version>1.0.0-SNAPSHOT</version>
  9 |     </parent>
 10 | 
 11 |     <artifactId>grpc-eureka-java</artifactId>
 12 |     <packaging>jar</packaging>
 13 | 
 14 |     <name>GRPC Eureka Java integration</name>
 15 | 
 16 |     <url>https://github.com/ExampleDriven/</url>
 17 | 
 18 |     <description>Eureka integration with GRPC</description>
 19 | 
 20 |     <organization>
 21 |         <name>Exampledriven</name>
 22 |         <url>exampledriven.wordpress.com</url>
 23 |     </organization>
 24 |     <licenses>
 25 |         <license>
 26 |             <name>Apache License, Version 2.0</name>
 27 |             <url>http://www.apache.org/licenses/LICENSE-2.0</url>
 28 |         </license>
 29 |     </licenses>
 30 | 
 31 |     <developers>
 32 |         <developer>
 33 |             <id>szantop</id>
 34 |             <name>Peter Szanto</name>
 35 |             <organization>Exampledriven</organization>
 36 |             <organizationUrl>exampledriven.wordpress.com</organizationUrl>
 37 |             <roles>
 38 |                 <role>Project lead</role>
 39 |             </roles>
 40 |         </developer>
 41 | 
 42 |     </developers>
 43 | 
 44 |     <properties>
 45 |         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 46 |         <maven.compiler.source>1.8</maven.compiler.source>
 47 |         <maven.compiler.target>1.8</maven.compiler.target>
 48 |     </properties>
 49 | 
 50 |     <dependencies>
 51 | 
 52 |         <dependency>
 53 |             <groupId>com.google.inject</groupId>
 54 |             <artifactId>guice</artifactId>
 55 |             <version>4.1.0</version>
 56 |         </dependency>
 57 | 
 58 |         <dependency>
 59 |             <groupId>com.netflix.eureka</groupId>
 60 |             <artifactId>eureka-client</artifactId>
 61 |             <version>1.4.11</version>
 62 |             <scope>provided</scope>
 63 |         </dependency>
 64 | 
 65 |         <dependency>
 66 |             <groupId>io.grpc</groupId>
 67 |             <artifactId>grpc-netty</artifactId>
 68 |             <scope>provided</scope>
 69 |         </dependency>
 70 | 
 71 |     </dependencies>
 72 | 
 73 | 
 74 |     <build>
 75 |         <plugins>
 76 | 
 77 |             <plugin>
 78 |                 <groupId>org.apache.maven.plugins</groupId>
 79 |                 <artifactId>maven-release-plugin</artifactId>
 80 |                 <version>2.5.3</version>
 81 |                 <configuration>
 82 |                     <autoVersionSubmodules>true</autoVersionSubmodules>
 83 |                     <useReleaseProfile>false</useReleaseProfile>
 84 |                     <releaseProfiles>release</releaseProfiles>
 85 |                     <goals>deploy</goals>
 86 |                 </configuration>
 87 |             </plugin>
 88 | 
 89 |             <plugin>
 90 |                 <groupId>org.apache.maven.plugins</groupId>
 91 |                 <artifactId>maven-compiler-plugin</artifactId>
 92 |                 <version>3.7.0</version>
 93 |                 <configuration>
 94 |                     <source>1.8</source>
 95 |                     <target>1.8</target>
 96 |                 </configuration>
 97 |             </plugin>
 98 | 
 99 |         </plugins>
100 |     </build>
101 | 
102 | </project>


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/grpc-eureka-java/src/main/java/org/exampledriven/grpc/eureka/EurekaNameResolver.java:
--------------------------------------------------------------------------------
 1 | package org.exampledriven.grpc.eureka;
 2 | 
 3 | import com.netflix.appinfo.ApplicationInfoManager;
 4 | import com.netflix.appinfo.EurekaInstanceConfig;
 5 | import com.netflix.appinfo.InstanceInfo;
 6 | import com.netflix.appinfo.MyDataCenterInstanceConfig;
 7 | import com.netflix.appinfo.providers.EurekaConfigBasedInstanceInfoProvider;
 8 | import com.netflix.discovery.DiscoveryClient;
 9 | import com.netflix.discovery.EurekaClient;
10 | import com.netflix.discovery.EurekaClientConfig;
11 | import com.netflix.discovery.shared.Application;
12 | import io.grpc.Attributes;
13 | import io.grpc.NameResolver;
14 | import io.grpc.ResolvedServerInfo;
15 | 
16 | import java.net.InetSocketAddress;
17 | import java.net.URI;
18 | import java.util.Collections;
19 | import java.util.List;
20 | import java.util.stream.Collectors;
21 | 
22 | public class EurekaNameResolver extends NameResolver {
23 | 
24 |     private final String serviceName;
25 |     private final String portMetaData;
26 |     private final EurekaClient eurekaClient;
27 | 
28 |     public EurekaNameResolver(EurekaClientConfig clientConfig, URI targetUri, String portMetaData) {
29 |         this.portMetaData = portMetaData;
30 |         serviceName = targetUri.getAuthority();
31 | 
32 |         MyDataCenterInstanceConfig instanceConfig = new MyDataCenterInstanceConfig();
33 | 
34 |         ApplicationInfoManager applicationInfoManager = initializeApplicationInfoManager(instanceConfig);
35 | 
36 |         eurekaClient = new DiscoveryClient(applicationInfoManager, clientConfig);
37 |     }
38 | 
39 |     private static synchronized ApplicationInfoManager initializeApplicationInfoManager(EurekaInstanceConfig instanceConfig) {
40 |         InstanceInfo instanceInfo = new EurekaConfigBasedInstanceInfoProvider(instanceConfig).get();
41 |         return new ApplicationInfoManager(instanceConfig, instanceInfo);
42 |     }
43 | 
44 |     @Override
45 |     public String getServiceAuthority() {
46 |         return serviceName;
47 |     }
48 | 
49 |     @Override
50 |     public void start(Listener listener) {
51 | 
52 |         update(listener);
53 | 
54 |     }
55 | 
56 |     private void update(Listener listener) {
57 |         Application application = eurekaClient.getApplication(serviceName);
58 | 
59 |         List<ResolvedServerInfo> resolvedServerInfos = application.getInstances().stream().map(instanceInfo -> {
60 |             int port;
61 |             if (portMetaData != null) {
62 |                 String s = instanceInfo.getMetadata().get(portMetaData);
63 |                 port = Integer.parseInt(instanceInfo.getMetadata().get(portMetaData));
64 |             } else {
65 |                 port = instanceInfo.getPort();
66 |             }
67 |             return new ResolvedServerInfo(new InetSocketAddress(instanceInfo.getHostName(), port), Attributes.EMPTY);
68 |         }).collect(Collectors.toList());
69 | 
70 |         listener.onUpdate(Collections.singletonList(resolvedServerInfos), Attributes.EMPTY);
71 |     }
72 | 
73 |     @Override
74 |     public void shutdown() {
75 | 
76 |     }
77 | }
78 | 


--------------------------------------------------------------------------------
/grpc-eureka-java/src/main/java/org/exampledriven/grpc/eureka/EurekaNameResolverProvider.java:
--------------------------------------------------------------------------------
 1 | package org.exampledriven.grpc.eureka;
 2 | 
 3 | import com.netflix.discovery.EurekaClientConfig;
 4 | import io.grpc.Attributes;
 5 | import io.grpc.NameResolver;
 6 | import io.grpc.NameResolverProvider;
 7 | import javax.annotation.Nullable;
 8 | import java.net.URI;
 9 | 
10 | public class EurekaNameResolverProvider extends NameResolverProvider {
11 | 
12 |     protected static final String EUREKA = "eureka";
13 |     private EurekaClientConfig eurekaClientConfig;
14 |     private final String portMetaData;
15 | 
16 |     public EurekaNameResolverProvider(EurekaClientConfig eurekaClientConfig) {
17 |         this(eurekaClientConfig, null);
18 |     }
19 | 
20 |     public EurekaNameResolverProvider(EurekaClientConfig eurekaClientConfig, String portMetaData) {
21 |         this.eurekaClientConfig = eurekaClientConfig;
22 |         this.portMetaData = portMetaData;
23 |     }
24 | 
25 |     @Override
26 |     protected boolean isAvailable() {
27 |         return true;
28 |     }
29 | 
30 |     @Override
31 |     protected int priority() {
32 |         return 6;
33 |     }
34 | 
35 |     @Nullable
36 |     @Override
37 |     public NameResolver newNameResolver(URI targetUri, Attributes params) {
38 |         return new EurekaNameResolver(eurekaClientConfig, targetUri, portMetaData);
39 |     }
40 | 
41 |     @Override
42 |     public String getDefaultScheme() {
43 |             return EUREKA;
44 |     }
45 | }
46 | 


--------------------------------------------------------------------------------
/pom.xml:
--------------------------------------------------------------------------------
  1 | <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  2 |          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  3 |     <modelVersion>4.0.0</modelVersion>
  4 | 
  5 |     <groupId>com.github.exampledriven</groupId>
  6 |     <artifactId>grpc-eureka-java-parent</artifactId>
  7 |     <version>1.0.0-SNAPSHOT</version>
  8 |     <packaging>pom</packaging>
  9 | 
 10 |     <name>GRPC Eureka Java integration parent</name>
 11 | 
 12 |     <url>https://github.com/ExampleDriven/</url>
 13 | 
 14 |     <description>Eureka integration with GRPC</description>
 15 | 
 16 |     <organization>
 17 |         <name>Exampledriven</name>
 18 |         <url>exampledriven.wordpress.com</url>
 19 |     </organization>
 20 |     <licenses>
 21 |         <license>
 22 |             <name>Apache License, Version 2.0</name>
 23 |             <url>http://www.apache.org/licenses/LICENSE-2.0</url>
 24 |         </license>
 25 |     </licenses>
 26 | 
 27 |     <scm>
 28 |         <connection>scm:git:git://github.com/ExampleDriven/grpc-eureka-java.git</connection>
 29 |         <developerConnection>scm:git:git@github.com:ExampleDriven/grpc-eureka-java.git</developerConnection>
 30 |         <url>https://github.com/ExampleDriven/grpc-eureka-java</url>
 31 |     </scm>
 32 | 
 33 |     <developers>
 34 |         <developer>
 35 |             <id>szantop</id>
 36 |             <name>Peter Szanto</name>
 37 |             <organization>Exampledriven</organization>
 38 |             <organizationUrl>exampledriven.wordpress.com</organizationUrl>
 39 |             <roles>
 40 |                 <role>Project lead</role>
 41 |             </roles>
 42 |         </developer>
 43 | 
 44 |     </developers>
 45 | 
 46 |     <properties>
 47 |         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 48 |         <maven.compiler.source>1.8</maven.compiler.source>
 49 |         <maven.compiler.target>1.8</maven.compiler.target>
 50 |         <grpc.verson>0.15.0</grpc.verson>
 51 |     </properties>
 52 | 
 53 |     <dependencyManagement>
 54 |         <dependencies>
 55 |             <dependency>
 56 |                 <groupId>io.grpc</groupId>
 57 |                 <artifactId>grpc-netty</artifactId>
 58 |                 <version>${grpc.verson}</version>
 59 |             </dependency>
 60 | 
 61 |             <dependency>
 62 |                 <groupId>io.grpc</groupId>
 63 |                 <artifactId>grpc-stub</artifactId>
 64 |                 <version>${grpc.verson}</version>
 65 |             </dependency>
 66 | 
 67 |             <dependency>
 68 |                 <groupId>com.netflix.eureka</groupId>
 69 |                 <artifactId>eureka-client</artifactId>
 70 |                 <version>1.4.11</version>
 71 |             </dependency>
 72 | 
 73 |         </dependencies>
 74 |     </dependencyManagement>
 75 | 
 76 |     <build>
 77 |         <plugins>
 78 | 
 79 |             <plugin>
 80 |                 <groupId>org.apache.maven.plugins</groupId>
 81 |                 <artifactId>maven-release-plugin</artifactId>
 82 |                 <version>2.5.3</version>
 83 |                 <configuration>
 84 |                     <autoVersionSubmodules>true</autoVersionSubmodules>
 85 |                     <useReleaseProfile>false</useReleaseProfile>
 86 |                     <releaseProfiles>release</releaseProfiles>
 87 |                     <goals>deploy</goals>
 88 |                 </configuration>
 89 |             </plugin>
 90 | 
 91 |             <plugin>
 92 |                 <groupId>org.apache.maven.plugins</groupId>
 93 |                 <artifactId>maven-compiler-plugin</artifactId>
 94 |                 <version>3.7.0</version>
 95 |                 <configuration>
 96 |                     <source>1.8</source>
 97 |                     <target>1.8</target>
 98 |                 </configuration>
 99 |             </plugin>
100 | 
101 |         </plugins>
102 |     </build>
103 | 
104 |     <modules>
105 |         <module>grpc-eureka-java</module>
106 |         <module>grpc-eureka-java-starter</module>
107 |     </modules>
108 | 
109 |     <distributionManagement>
110 |         <repository>
111 |             <id>oss.sonatype.org</id>
112 |             <url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
113 |         </repository>
114 |         <snapshotRepository>
115 |             <id>oss.sonatype.org</id>
116 |             <url>https://oss.sonatype.org/content/repositories/snapshots</url>
117 |         </snapshotRepository>
118 |     </distributionManagement>
119 | 
120 |     <profiles>
121 |         <profile>
122 |             <id>run-its</id>
123 |             <build>
124 | 
125 |                 <plugins>
126 |                     <plugin>
127 |                         <groupId>org.apache.maven.plugins</groupId>
128 |                         <artifactId>maven-invoker-plugin</artifactId>
129 |                         <version>2.0.0</version>
130 |                         <configuration>
131 |                             <debug>true</debug>
132 |                             <cloneProjectsTo>${project.build.directory}/it</cloneProjectsTo>
133 |                             <pomIncludes>
134 |                                 <pomInclude>*/pom.xml</pomInclude>
135 |                             </pomIncludes>
136 |                             <postBuildHookScript>verify</postBuildHookScript>
137 |                             <localRepositoryPath>${project.build.directory}/local-repo</localRepositoryPath>
138 |                             <settingsFile>src/it/srunettings.xml</settingsFile>
139 |                             <goals>
140 |                                 <goal>clean</goal>
141 |                                 <goal>test-compile</goal>
142 |                             </goals>
143 |                         </configuration>
144 |                         <executions>
145 |                             <execution>
146 |                                 <id>integration-test</id>
147 |                                 <goals>
148 |                                     <goal>install</goal>
149 |                                     <goal>integration-test</goal>
150 |                                     <goal>verify</goal>
151 |                                 </goals>
152 |                             </execution>
153 |                         </executions>
154 |                     </plugin>
155 |                 </plugins>
156 | 
157 |             </build>
158 |         </profile>
159 | 
160 |         <profile>
161 |             <id>release</id>
162 |             <activation>
163 |                 <property>
164 |                     <name>performRelease</name>
165 |                     <value>true</value>
166 |                 </property>
167 |             </activation>
168 |             <build>
169 |                 <plugins>
170 |                     <plugin>
171 |                         <groupId>org.apache.maven.plugins</groupId>
172 |                         <artifactId>maven-source-plugin</artifactId>
173 |                         <executions>
174 |                             <execution>
175 |                                 <id>attach-sources</id>
176 |                                 <goals>
177 |                                     <goal>jar-no-fork</goal>
178 |                                 </goals>
179 |                             </execution>
180 |                             <execution>
181 |                                 <goals>
182 |                                     <goal>jar</goal>
183 |                                 </goals>
184 |                             </execution>
185 |                         </executions>
186 |                     </plugin>
187 |                     <plugin>
188 |                         <groupId>org.apache.maven.plugins</groupId>
189 |                         <artifactId>maven-gpg-plugin</artifactId>
190 |                         <version>1.5</version>
191 |                         <executions>
192 |                             <execution>
193 |                                 <id>sign-artifacts</id>
194 |                                 <phase>verify</phase>
195 |                                 <goals>
196 |                                     <goal>sign</goal>
197 |                                 </goals>
198 |                             </execution>
199 |                         </executions>
200 |                     </plugin>
201 | 
202 |                 </plugins>
203 |             </build>
204 |         </profile>
205 | 
206 | 
207 |     </profiles>
208 | </project>


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