org.argeo.cms/src/org/argeo/cms/internal/kernel/CmsShutdown.java

   1 package org.argeo.cms.internal.kernel;
   2
   3 import java.io.IOException;
   4
   5 import org.apache.commons.logging.Log;
   6 import org.apache.commons.logging.LogFactory;
   7 import org.osgi.framework.Bundle;
   8 import org.osgi.framework.BundleContext;
   9 import org.osgi.framework.FrameworkEvent;
  10 import org.osgi.framework.FrameworkUtil;
  11 import org.osgi.framework.launch.Framework;
  12
  13 /** Shutdowns the OSGi framework */
  14 class CmsShutdown extends Thread {
  15         public final int EXIT_OK = 0;
  16         public final int EXIT_ERROR = 1;
  17         public final int EXIT_TIMEOUT = 2;
  18         public final int EXIT_UNKNOWN = 3;
  19
  20         private final Log log = LogFactory.getLog(CmsShutdown.class);
  21         // private final BundleContext bc =
  22         // FrameworkUtil.getBundle(CmsShutdown.class).getBundleContext();
  23         private final Framework framework;
  24
  25         /** Shutdown timeout in ms */
  26         private long timeout = 10 * 60 * 1000;
  27
  28         public CmsShutdown() {
  29                 super("CMS Shutdown Hook");
  30                 framework = (Framework) FrameworkUtil.getBundle(CmsShutdown.class).getBundleContext().getBundle(0);
  31         }
  32
  33         @Override
  34         public void run() {
  35                 if (framework.getState() != Bundle.ACTIVE) {
  36                         return;
  37                 }
  38
  39                 if (log.isDebugEnabled())
  40                         log.debug("Shutting down OSGi framework...");
  41                 try {
  42                         // shutdown framework
  43                         framework.stop();
  44                         // wait for shutdown
  45                         FrameworkEvent shutdownEvent = framework.waitForStop(timeout);
  46                         int stoppedType = shutdownEvent.getType();
  47                         Runtime runtime = Runtime.getRuntime();
  48                         if (stoppedType == FrameworkEvent.STOPPED) {
  49                                 // close VM
  50                                 //System.exit(EXIT_OK);
  51                         } else if (stoppedType == FrameworkEvent.ERROR) {
  52                                 log.error("The OSGi framework stopped with an error");
  53                                 runtime.halt(EXIT_ERROR);
  54                         } else if (stoppedType == FrameworkEvent.WAIT_TIMEDOUT) {
  55                                 log.error("The OSGi framework hasn't stopped after " + timeout + "ms."
  56                                                 + " Forcibly terminating the JVM...");
  57                                 runtime.halt(EXIT_TIMEOUT);
  58                         } else {
  59                                 log.error("Unknown state of OSGi framework after " + timeout + "ms."
  60                                                 + " Forcibly terminating the JVM... (" + shutdownEvent + ")");
  61                                 runtime.halt(EXIT_UNKNOWN);
  62                         }
  63                 } catch (Exception e) {
  64                         e.printStackTrace();
  65                         log.error("Unexpected exception " + e + " in shutdown hook. " + " Forcibly terminating the JVM...");
  66                         Runtime.getRuntime().halt(EXIT_UNKNOWN);
  67                 }
  68         }
  69
  70 }