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1. Right-click the project com.sample.blueprint.helloworld.client and create a new class as shown in the figure.
   
   
   
2. Name the class as HelloWorldClient and click Finish.
   
   
   
3. Modify the code of HelloWorldClient as follows.
   

   Code Block
   java java title HelloWorldClient.java
   package com.sample.blueprint.helloworld.client; import com.sample.blueprint.helloworld.api.HelloWorldService; public class HelloWorldClient { HelloWorldService helloWorldService = null; public void startUp() { System.out .println("========>>>>Client HelloWorld: About to execute a method from the Hello World service"); helloWorldService.hello(); System.out .println("========>>>>Client HelloWorld: ... if you didn't just see a Hello World message something went wrong"); } public HelloWorldService getHelloWorldService() { return helloWorldService; } public void setHelloWorldService(HelloWorldService helloWorldService) { this.helloWorldService = helloWorldService; } }

4. Right-click the project name and create a Blueprint file, then modify the xml file as follows. The xml is placed under OSGI-INF\blueprint directory automatically.
   

   Code Block
   xml blueprint.xml
   <?xml version="1.0" encoding="UTF-8"?> <blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"> <reference id="helloservice" interface="com.sample.blueprint.helloworld.api.HelloWorldService" /> <bean id="helloclient" class="com.sample.blueprint.helloworld.client.HelloWorldClient" init-method="startUp"> <property name="helloWorldService" ref="helloservice" /> </bean> </blueprint>

5. Modify META-INF\MANIFEST.MF and make sure com.sample.blueprint.helloworld.api is listed under Import-Pakcage.
   
   
   

Run and deploy

1. Deploy the HelloWorld project on the server.
   
   
   
2. Check the console of the server, the messages displays as each bundles initialized sequentially.