/trunk/osgi/HelloWorldSpec/client/src/com/extensiblejava/hello/client/HelloConsumer.java
 
 
 

 
/trunk/osgi/HelloWorldSpec/client/src/com/extensiblejava/hello/client/HelloConsumer.java   r12
 
 
 
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svn:executable
 
 
 
 
 
 
 
 
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package com.extensiblejava.hello.client;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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import com.extensiblejava.hello.service.HelloService;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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import org.osgi.framework.BundleActivator;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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import org.osgi.framework.BundleContext;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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import org.osgi.framework.ServiceReference;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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import org.osgi.util.tracker.ServiceTracker;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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public class HelloConsumer implements BundleActivator {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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	private ServiceTracker helloWorldTracker;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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	public void start(BundleContext context) throws Exception {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        helloWorldTracker = new ServiceTracker(context, HelloService.class.getName(), null);
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        helloWorldTracker.open();
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        HelloService hello = (HelloService) helloWorldTracker.getService();
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		if (hello == null) {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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			System.out.println("Hello service unavailable on HelloConsumer start");
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		} else {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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        	System.out.println(hello.sayHello());
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		}
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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	}
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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	public void stop(BundleContext context) {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		HelloService hello = (HelloService) helloWorldTracker.getService();
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		if (hello == null) {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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			System.out.println("Hello service unavailable on HelloConsumer stop");
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		} else {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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			System.out.println(hello.sayGoodbye());
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		}
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		helloWorldTracker.close();
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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    }
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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	/*public void setHelloService(HelloService hello) {
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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		this.hello = hello;
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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	}*/
 
 
 
 
 
 
 
 
 
 
 
 

 

 
 
 
 
 
 
 
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}