如何获取Eclipse RCP应用程序的OSGi BundleContext？ [英] How do I get the OSGi BundleContext for an Eclipse RCP application?

问题描述

我刚刚开始使用Eclipse RCP应用程序，它基本上只是提供的hello world示例之一。

I have just gotten started with an Eclipse RCP application, it is basically just one of the provided "hello world" samples.

当应用程序启动时，我想查看我的命令行参数并根据它们启动一些服务。我可以在 IApplication.start 中获取命令行参数：

When the application boots up, I would like to look at my command-line parameters and start some services according to them. I can get the command-line parameters in IApplication.start:

public Object start(IApplicationContext context) {
   String[] argv = (String[]) 
       context.getArguments().get(IApplicationContext.APPLICATION_ARGS)));
}

但是如何获得BundleContext，以便我可以注册服务？它似乎不在IApplicationContext中。

But how do I get the BundleContext, so that I can register services? It does not seem to be in the IApplicationContext.

推荐答案

棘手的内部方式：

InternalPlatform.getDefault().getBundleContext()

可以做到。

你会在此类

public class ExportClassDigestApplication implements IApplication {

    public Object start(IApplicationContext context) throws Exception {
        context.applicationRunning();

        List<ExtensionBean> extensionBeans = ImpCoreUtil.loadExtensionBeans(&quot;com.xab.core.containerlaunchers&quot;);
        for (ExtensionBean bean : extensionBeans) {
            ILauncher launcher = (ILauncher) bean.getInstance();
            launcher.start();
        }
        ClassFilter classFilter = new ClassFilter() {
            public boolean isClassAccepted(Class clz) {
                return true;
            }
        };

        PrintWriter writer = new PrintWriter( new File( "C:/classes.csv"));

        Bundle[] bundles = InternalPlatform.getDefault().getBundleContext().getBundles();

---

正确的方式：

每个插件-in 可以访问自己的bundle上下文。

Every plug-in has access to its own bundle context.

只需确保你的插件类覆盖 start（BundleContext）方法。然后，您可以将其保存到插件中可以轻松访问的地方类

Just make sure your plug-in class overrides the start(BundleContext) method. You can then save it to a place classes in your plug-in can easily access

请注意，提供给插件的捆绑上下文是特定于它的，并且永远不应该是与其他插件共享。

Note the bundle context provided to a plug-in is specific to it and should never be shared with other plug-ins.

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