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POTerminate OSGi-Framework thats running in Tomcat
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  1. POTerminate OSGi-Framework thats running in Tomcat
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    copied!<p>according to <a href="http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Fguide%2Fua_help_war.htm" rel="nofollow">http://help.eclipse.org/indigo/index.jsp?topic=%2Forg.eclipse.platform.doc.isv%2Fguide%2Fua_help_war.htm</a> I set up a dedicated Tomcat server that runs several eclipse-help-plugins.</p> <p>The server and also the help is up and running well. But now I realized that stopping the server especially the OSGi-Framework seems to be a problem. I always have to kill the server process if the help-war is deployed and I believe that I have to shutdown the OSGi-Framework gracefully.</p> <p>After some investigation I came up with the following implementation of a ServletContextListener, that stops the system-bundle by calling bundleContext.getBundle(0).stop():</p> <pre><code>import javax.servlet.ServletContextEvent; import javax.servlet.ServletContextListener; import org.osgi.framework.Bundle; import org.osgi.framework.BundleContext; import org.osgi.framework.BundleException; import org.osgi.framework.FrameworkUtil; public class OsgiShutdownListener implements ServletContextListener { /** {@inheritDoc} */ @Override public void contextDestroyed(ServletContextEvent sce) { Bundle bundle = FrameworkUtil.getBundle(org.eclipse.core.runtime.adaptor.EclipseStarter.class); BundleContext bundleContext = bundle.getBundleContext(); try { bundleContext.getBundle(0).stop(); } catch (BundleException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** {@inheritDoc} */ @Override public void contextInitialized(ServletContextEvent sce) { System.out.println("starting"); } } </code></pre> <p>But FrameworkUtil.getBundle(org.eclipse.core.runtime.adaptor.EclipseStarter.class) always returns null, so I never get a reference to a BundleContext to stop the framework.</p> <p><strong>EDIT:</strong> I changed the code to sce.getServletContext().getAttribute("osgi-bundlecontext") in contextDestroyed() and contextInitialized() as well, but in both cases I get no reference to the bundle context. Bundle context is always null.</p> <pre><code>public class OsgiShutdownListener implements ServletContextListener { private BundleContext bundleContext; /** {@inheritDoc} */ @Override public void contextDestroyed(ServletContextEvent sce) { // Bundle bundle = // FrameworkUtil.getBundle(org.eclipse.core.runtime.adaptor.EclipseStarter.class); // this.bundleContext = bundle.getBundleContext(); ServletContext context = sce.getServletContext(); this.bundleContext = (BundleContext) context .getAttribute("osgi-bundlecontext"); try { this.bundleContext.getBundle(0).stop(); } catch (BundleException e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** {@inheritDoc} */ @Override public void contextInitialized(ServletContextEvent sce) { ServletContext context = sce.getServletContext(); this.bundleContext = (BundleContext) context .getAttribute("osgi-bundlecontext"); } } </code></pre> <p>How do I get a bundleContext in this situation to stop the system bundle? Or how do I gracefully stop the OSGi-Framework when the server shuts down?</p>
 

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