User: user57
Date: 01/07/12 18:22:26
Modified: src/main/org/jboss/util Shutdown.java ShutdownMBean.java
Log:
o added support to invoke Runtime.halt()
o added a tad bit more logging
Revision Changes Path
1.6 +59 -18 jboss/src/main/org/jboss/util/Shutdown.java
Index: Shutdown.java
===================================================================
RCS file: /cvsroot/jboss/jboss/src/main/org/jboss/util/Shutdown.java,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -r1.5 -r1.6
--- Shutdown.java 2001/06/22 23:11:15 1.5
+++ Shutdown.java 2001/07/13 01:22:26 1.6
@@ -6,62 +6,94 @@
*/
package org.jboss.util;
-import java.io.*;
-import java.net.*;
-import java.util.*;
+import java.util.List;
+import java.util.ArrayList;
-import org.apache.log4j.Category;
+import javax.management.MBeanRegistration;
+import javax.management.MBeanRegistration;
+import javax.management.MBeanServer;
+import javax.management.ObjectName;
-import javax.management.*;
+import org.apache.log4j.Category;
/**
* Shutdown service. Installs a hook to cleanly shutdown the server and
* provides the ability to handle user shutdown requests.
*
- * @author <a href="mailto:[EMAIL PROTECTED]";>Rickard Öberg</a>.
- * @version $Revision: 1.5 $
+ * @author <a href="mailto:[EMAIL PROTECTED]";>Rickard Öberg</a>
+ * @author <a href="mailto:[EMAIL PROTECTED]";>Jason Dillon</a>
+ * @version $Revision: 1.6 $
*/
public class Shutdown
implements MBeanRegistration, ShutdownMBean
{
// Constants -----------------------------------------------------
+ /** The default object name to use. */
public static final String OBJECT_NAME = ":type=Shutdown";
// Attributes ----------------------------------------------------
/** Instance logger. */
private final Category log = Category.getInstance(Shutdown.class);
-
- List mbeans = new ArrayList();
- MBeanServer server;
+
+ /** The MBean server we are attached to. */
+ private MBeanServer server;
// Public -------------------------------------------------------
+
+ /**
+ * Shutdown the virtual machine and run shutdown hooks.
+ */
public void shutdown()
{
+ log.info("Shutting down");
System.exit(0); // This will execute the shutdown hook
}
+
+ /**
+ * Forcibly terminates the currently running Java virtual machine.
+ */
+ public void halt()
+ {
+ System.err.println("Halting the system now!");
+ Runtime.getRuntime().halt(0);
+ }
// MBeanRegistration implementation ------------------------------
- public ObjectName preRegister(final MBeanServer server, ObjectName name)
+ /**
+ * Saves a reference to the MBean server for later use and installs
+ * a shutdown hook.
+ *
+ * @param server The MBean server which we are going to be registered.
+ * @param name The object name we have been configured to use.
+ * @return Our preferred object name.
+ *
+ * @throws MalformedObjectNameException
+ */
+ public ObjectName preRegister(final MBeanServer server,
+ final ObjectName name)
throws Exception
{
this.server = server;
try
{
- Runtime.getRuntime().addShutdownHook(new Thread()
+ Runtime.getRuntime().addShutdownHook(new Thread("JBoss Shutdown Hook")
{
public void run()
{
+ log.info("Shutting down all services");
System.out.println("Shutting down");
// Make sure all services are down properly
shutdownServices();
-
+
+ log.info("Shutdown complete");
System.out.println("Shutdown complete");
}
});
+
log.info("Shutdown hook added");
} catch (Throwable e)
{
@@ -72,23 +104,31 @@
public void postRegister(Boolean registrationDone)
{
+ // empty
}
- public void preDeregister()
- throws Exception
+ public void preDeregister() throws Exception
{
+ // empty
}
public void postDeregister()
{
+ // empty
}
-
+
+ /**
+ * Attempt to <em>stop</em> and <em>destroy</em> all services
+ * running inside of the MBean server which we are attached too by
+ * asking the <tt>ServiceControl</tt> to do the dirty work.
+ */
protected void shutdownServices()
{
try
{
// Stop services
- server.invoke(new ObjectName(":service=ServiceControl"), "stop", new
Object[0] , new String[0]);
+ server.invoke(new ObjectName(":service=ServiceControl"),
+ "stop", new Object[0] , new String[0]);
} catch (Exception e)
{
log.error("failed to stop services", e);
@@ -97,7 +137,8 @@
try
{
// Destroy services
- server.invoke(new ObjectName(":service=ServiceControl"), "destroy", new
Object[0] , new String[0]);
+ server.invoke(new ObjectName(":service=ServiceControl"),
+ "destroy", new Object[0] , new String[0]);
} catch (Exception e)
{
log.error("failed to destroy services", e);
1.3 +14 -7 jboss/src/main/org/jboss/util/ShutdownMBean.java
Index: ShutdownMBean.java
===================================================================
RCS file: /cvsroot/jboss/jboss/src/main/org/jboss/util/ShutdownMBean.java,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -r1.2 -r1.3
--- ShutdownMBean.java 2001/06/18 20:01:28 1.2
+++ ShutdownMBean.java 2001/07/13 01:22:26 1.3
@@ -7,16 +7,23 @@
package org.jboss.util;
/**
- * <description>
- *
- * @see <related>
- * @author <a href="mailto:[EMAIL PROTECTED]";>Rickard Öberg</a>.
- * @version $Revision: 1.2 $
+ * The management interface for the Shutdown bean.
+ *
+ * @author <a href="mailto:[EMAIL PROTECTED]";>Rickard Öberg</a>
+ * @author <a href="mailto:[EMAIL PROTECTED]";>Jason Dillon</a>
+ * @version $Revision: 1.3 $
*/
public interface ShutdownMBean
{
- // Public --------------------------------------------------------
- public void shutdown();
+ /**
+ * Shutdown the virtual machine and run shutdown hooks.
+ */
+ void shutdown();
+
+ /**
+ * Forcibly terminates the currently running Java virtual machine.
+ */
+ void halt();
}
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