1 files changed, 104 insertions, 0 deletions
diff --git a/qpid/java/broker-plugins/experimental/shutdown/src/main/java/org/apache/qpid/shutdown/Shutdown.java b/qpid/java/broker-plugins/experimental/shutdown/src/main/java/org/apache/qpid/shutdown/Shutdown.java
new file mode 100644
index 0000000000..9a6f85fe9c
--- /dev/null
+++ b/qpid/java/broker-plugins/experimental/shutdown/src/main/java/org/apache/qpid/shutdown/Shutdown.java
@@ -0,0 +1,104 @@
+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one
+ *  or more contributor license agreements.  See the NOTICE file
+ *  distributed with this work for additional information
+ *  regarding copyright ownership.  The ASF licenses this file
+ *  to you under the Apache License, Version 2.0 (the
+ *  "License"); you may not use this file except in compliance
+ *  with the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing,
+ *  software distributed under the License is distributed on an
+ *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *  KIND, either express or implied.  See the License for the
+ *  specific language governing permissions and limitations
+ *  under the License.
+ *
+ */
+package org.apache.qpid.shutdown;
+
+import java.text.DateFormat;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.ScheduledThreadPoolExecutor;
+import java.util.concurrent.TimeUnit;
+
+import org.apache.log4j.Logger;
+
+/**
+ * Implementation of the JMX broker shutdown plugin.
+ */
+public class Shutdown implements ShutdownMBean
+{
+    private static final Logger _logger = Logger.getLogger(Shutdown.class);
+
+    private static final String FORMAT = "yyyyy/MM/dd hh:mm:ss";
+    private static final int THREAD_COUNT = 1;
+    private static final ScheduledExecutorService EXECUTOR = new ScheduledThreadPoolExecutor(THREAD_COUNT);
+
+    private final Runnable _shutdown = new SystemExiter();
+
+    /** @see ShutdownMBean#shutdown() */
+    public void shutdown()
+    {
+        _logger.info("Shutting down at user's request");
+        shutdownBroker(0);
+    }
+
+    /** @see ShutdownMBean#shutdown(long) */
+    public void shutdown(long delay)
+    {
+        _logger.info("Scheduled broker shutdown after " + delay + "ms");
+        shutdownBroker(delay);
+    }
+
+    /** @see ShutdownMBean#shutdownAt(String) */
+    public void shutdownAt(String when)
+    {
+        Date date;
+        DateFormat df = new SimpleDateFormat(FORMAT);
+        try
+        {
+            date = df.parse(when);
+        }
+        catch (ParseException e)
+        {
+            _logger.error("Invalid date \"" + when + "\": expecting " + FORMAT, e);
+            return;
+        }
+        _logger.info("Scheduled broker shutdown at " + when);
+        long now = System.currentTimeMillis();
+        long time = date.getTime();
+        if (time > now)
+        {
+            shutdownBroker(time - now);
+        }
+        else
+        {
+            shutdownBroker(0);
+        }
+    }
+
+    /**
+     * Submits the {@link SystemExiter} job to shutdown the broker.
+     */
+    private void shutdownBroker(long delay)
+    {
+        EXECUTOR.schedule(_shutdown, delay, TimeUnit.MILLISECONDS);
+    }
+
+    /**
+     * Shutting down the system in another thread to avoid JMX exceptions being thrown.
+     */
+    class SystemExiter implements Runnable
+    {
+        public void run()
+        {
+            System.exit(0);
+        }
+    }
+}