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Appendix C. Using the Maven JBI Tooling

Abstract

Packaging application components so that they conform the JBI specification is a cumbersome job. Red Hat JBoss Fuse includes tooling that automates the process of packaging you applications and creating the required JBI descriptors.
Red Hat JBoss Fuse provides a Maven plug-in and a number of Maven archetypes that make developing, packaging, and deploying JBI artifacts easier. The tooling provides you with a number of benefits including:
  • automatic generation of JBI descriptors
  • dependency checking
Because Red Hat JBoss Fuse only allows you to deploy service assemblies, you will need to do the following when using the Maven JBI tooling:
  1. Set up a top-level project to build all of the service units and the final service assembly.
  2. Create a project for each of your service units..
  3. Create a project for the service assembly.

C.1. Setting up a Red Hat JBoss Fuse JBI project

Overview

When working with the Red Hat JBoss Fuse JBI Maven tooling, you create a top-level project that can build all of the service units and then package them into a service assembly. Using a top-level project for this purpose has several advantages:
  • It allows you to control the dependencies for all of the parts of an application in a central location.
  • It limits the number of times you need to specify the proper repositories to load.
  • It provides you a central location from which to build and deploy the application.
The top-level project is responsible for assembling the application. It uses the Maven assembly plug-in and lists your service units and the service assembly as modules of the project.

Directory structure

Your top-level project contains the following directories:
  • A source directory containing the information required for the Maven assembly plug-in
  • A directory to store the service assembly project
  • At least one directory containing a service unit project
    Tip
    You will need a project folder for each service unit that is to be included in the generated service assembly.

Setting up the Maven tools

To use the JBoss Fuse JBI Maven tooling, add the elements shown in Example C.1 to your top-level POM file.

Example C.1. POM elements for using Red Hat JBoss Fuse Maven tooling

...
<pluginRepositories>
  <pluginRepository>
    <id>fusesource.m2</id>
    <name>FuseSource Open Source Community Release Repository</name>
    <url>http://repo.fusesource.com/nexus/content/groups/public/</url>
    <snapshots>
      <enabled>false</enabled>
    </snapshots>
    <releases>
      <enabled>true</enabled>
    </releases>
  </pluginRepository>
</pluginRepositories>
<repositories>
  <repository>
    <id>fusesource.m2</id>
    <name>FuseSource Open Source Community Release Repository</name>
    <url>http://repo.fusesource.com/nexus/content/groups/public/</url>
    <snapshots>
       <enabled>false</enabled>
    </snapshots>
    <releases>
      <enabled>true</enabled>
    </releases>
  </repository>
  <repository>
    <id>fusesource.m2-snapshot</id>
    <name>FuseSource Open Source Community Snapshot Repository</name>
    <url>http://repo.fusesource.com/nexus/content/groups/public-snapshots/</url>
    <snapshots>
      <enabled>true</enabled>
    </snapshots>
    <releases>
      <enabled>false</enabled>
    </releases>
  </repository>
</repositories>
  ...
<build>
  <plugins>
    <plugin>
      <groupId>org.apache.servicemix.tooling</groupId>
      <artifactId>jbi-maven-plugin</artifactId>
      <version>servicemix-version</version> 
      <extensions>true</extensions>
    </plugin>
  </plugins>
</build>
  ...
These elements point Maven to the correct repositories to download the JBoss Fuse Maven tooling and to load the plug-in that implements the tooling.

Listing the sub-projects

The top-level POM lists all of the service units and the service assembly that is generated as modules. The modules are contained in a modules element. The modules element contains one module element for each service unit in the assembly. You also need a module element for the service assembly.
The modules are listed in the order in which they are built. This means that the service assembly module is listed after all of the service unit modules.

Example JBI project pOM

Example C.2 shows a top-level POM for a project that contains a single service unit.

Example C.2. Top-level POM for a Red Hat JBoss Fuse JBI project

<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
                             http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <parent>
    <groupId>com.widgets</groupId>
    <artifactId>demos</artifactId>
    <version>1.0</version>
  </parent>

  <groupId>com.widgets.demo</groupId>
  <artifactId>cxf-wsdl-first</artifactId>
  <name>CXF WSDL Fisrt Demo</name>
  <packaging>pom</packaging>
    
  <pluginRepositories> 1
    <pluginRepository>
      <id>fusesource.m2</id>
      <name>FuseSource Open Source Community Release Repository</name>
      <url>http://repo.fusesource.com/nexus/content/groups/public/</url>
      <snapshots>
        <enabled>false</enabled>
      </snapshots>
      <releases>
        <enabled>true</enabled>
      </releases>
    </pluginRepository>
  </pluginRepositories>
  <repositories>
    <repository>
      <id>fusesource.m2</id>
      <name>FuseSource Open Source Community Release Repository</name>
      <url>http://repo.fusesource.com/nexus/content/groups/public/</url>
      <snapshots>
         <enabled>false</enabled>
      </snapshots>
      <releases>
        <enabled>true</enabled>
      </releases>
    </repository>
    <repository>
      <id>fusesource.m2-snapshot</id>
      <name>FuseSource Open Source Community Snapshot Repository</name>
      <url>http://repo.fusesource.com/nexus/content/groups/public-snapshots/</url>
      <snapshots>
        <enabled>true</enabled>
      </snapshots>
      <releases>
        <enabled>false</enabled>
      </releases>
    </repository>
  </repositories>
    
  <modules> 2
    <module>wsdl-first-cxfse-su</module>
     <module>wsdl-first-cxf-sa</module>
  </modules>
    
  <build>
    <plugins>
      <plugin> 3
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-assembly-plugin</artifactId>
         <version>2.1</version>
         <inherited>false</inherited>
           <executions>
             <execution>
                <id>src</id>
                <phase>package</phase>
                <goals>
                  <goal>single</goal>
                </goals>
                <configuration>
                  <descriptors>
                    <descriptor>src/main/assembly/src.xml</descriptor>
                  </descriptors>
                 </configuration>
               </execution>
             </executions>
           </plugin>
           <plugin> 4
             <groupId>org.apache.servicemix.tooling</groupId>
             <artifactId>jbi-maven-plugin</artifactId>
             <extensions>true</extensions>
           </plugin>
    </plugins>
  </build>
</project>
The top-level POM shown in Example C.2, “Top-level POM for a Red Hat JBoss Fuse JBI project” does the following:
1
Configures Maven to use the FuseSource repositories for loading the JBoss Fuse plug-ins.
2
Lists the sub-projects used for this application. The wsdl-first-cxfse-su module is the module for the service unit. The wsdl-first-cxf-sa module is the module for the service assembly
3
Configures the Maven assembly plug-in.
4
Loads the JBoss Fuse JBI plug-in.
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