BlueprintListener的使用

来源：互联网发布：world of tanks mac 编辑：程序博客网时间：2024/05/10 15:30

OSGI里面有很多种Listener，添加一个Listener一般是调用BundleContext里面的addListener，比如

BundleContext.addBundleListener();BundleContext.addFrameworkListener();BundleContext.addServiceListener();

但是，BlueprintListener有点不一样

下面有个简单的用法

package com.pp;import org.osgi.framework.BundleActivator;import org.osgi.framework.BundleContext;import org.osgi.framework.ServiceRegistration;import org.osgi.service.blueprint.container.BlueprintListener;public class BlueprintListenerExample implements BundleActivator{private ServiceRegistration<BlueprintListener> registration = null;public void start(BundleContext context) throws Exception{BlueprintListener blueprintListener = (event) -> {System.out.println("BlueprintListener " + event.getBundle().getSymbolicName() + ", type=" + event.getType());};registration = context.registerService(BlueprintListener.class, blueprintListener, null); }public void stop(BundleContext context) throws Exception{registration.unregister();}}

然后，在MANIFEST.MF文件里面增加Bundle-Activator：com.pp.BlueprintListenerExample
这样，就添加了一个BlueprintListener

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