From e5b7380c874745c989d1816b8f552504f038e1bc Mon Sep 17 00:00:00 2001
From: lresende <lresende@13f79535-47bb-0310-9956-ffa450edef68>
Date: Thu, 26 Sep 2013 20:33:20 +0000
Subject: 2.0 branch for possible maintenance release

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@1526672 13f79535-47bb-0310-9956-ffa450edef68
---
 .../sca/node/launcher/NodeDaemonLauncher.java      | 169 +++++++++++++++++++++
 1 file changed, 169 insertions(+)
 create mode 100644 sca-java-2.x/branches/2.0/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java

(limited to 'sca-java-2.x/branches/2.0/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java')

diff --git a/sca-java-2.x/branches/2.0/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java b/sca-java-2.x/branches/2.0/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java
new file mode 100644
index 0000000000..56be9f9921
--- /dev/null
+++ b/sca-java-2.x/branches/2.0/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java
@@ -0,0 +1,169 @@
+/*
+ * 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.tuscany.sca.node.launcher;
+
+import static org.apache.tuscany.sca.node.launcher.NodeLauncherUtil.nodeDaemon;
+
+import java.io.IOException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * A launcher for the SCA Node daemon.
+ *  
+ * @version $Rev$ $Date$
+ */
+public class NodeDaemonLauncher {
+
+    static final Logger logger = Logger.getLogger(NodeDaemonLauncher.class.getName());
+    
+    /**
+     * Constructs a new node daemon launcher.
+     */
+    private NodeDaemonLauncher() {
+    }
+    
+    /**
+     * Returns a new launcher instance.
+     *  
+     * @return a new launcher instance
+     */
+    public static NodeDaemonLauncher newInstance() {
+        return new NodeDaemonLauncher();
+    }
+
+    /**
+     * Creates a new node daemon.
+     * 
+     * @param
+     * @return a new node daemon
+     * @throws LauncherException
+     */
+    public <T> T createNodeDaemon() throws LauncherException {
+        return (T)nodeDaemon();
+    }
+    
+    public static void main(String[] args) throws Exception {
+        logger.info("Apache Tuscany SCA Node Daemon is starting...");
+
+        // Create a node launcher
+        NodeDaemonLauncher launcher = newInstance();
+
+        Object node = null;
+        ShutdownThread shutdown = null;
+        try {
+            while (true) {
+                
+                // Start the node
+                node = launcher.createNodeDaemon();
+                try {
+                    node.getClass().getMethod("start").invoke(node);
+                } catch (Exception e) {
+                    logger.log(Level.SEVERE, "SCA Node Daemon could not be started", e);
+                    throw e;
+                }
+                logger.info("SCA Node Daemon is now started.");
+                
+                // Install a shutdown hook
+                shutdown = new ShutdownThread(node);
+                Runtime.getRuntime().addShutdownHook(shutdown);
+                
+                logger.info("Press 'q' to quit, 'r' to restart.");
+                int k = 0;
+                try {
+                    while ((k != 'q') && (k != 'r')) {
+                        k = System.in.read();
+                    }
+                } catch (IOException e) {
+                    
+                    // Wait forever
+                    Object lock = new Object();
+                    synchronized(lock) {
+                        lock.wait();
+                    }
+                }
+
+                // Stop the node
+                if (node != null) {
+                    Object n = node;
+                    node = null;
+                    stopNode(n);
+                }
+                
+                // Quit
+                if (k == 'q' ) {
+                    break;
+                }
+            } 
+        } catch (Exception e) {
+            // Stop the node
+            if (node != null) {
+                try {
+                    Object n = node;
+                    node = null;
+                    stopNode(n);
+                } catch (Exception e2) {
+                }
+            }
+            throw e;
+            
+        } finally {
+
+            // Remove the shutdown hook
+            if (shutdown != null) {
+                Runtime.getRuntime().removeShutdownHook(shutdown);
+            }
+        }
+    }
+    
+    /**
+     * Stop the given node.
+     * 
+     * @param node
+     * @throws Exception
+     */
+    private static void stopNode(Object node) throws Exception {
+        try {
+            node.getClass().getMethod("stop").invoke(node);
+            logger.info("SCA Node Daemon is now stopped.");
+        } catch (Exception e) {
+            logger.log(Level.SEVERE, "SCA Node Daemon could not be stopped", e);
+            throw e;
+        }
+    }
+    
+    private static class ShutdownThread extends Thread {
+        private Object node;
+
+        public ShutdownThread(Object node) {
+            super();
+            this.node = node;
+        }
+
+        @Override
+        public void run() {
+            try {
+                stopNode(node);
+            } catch (Exception e) {
+                // Ignore
+            }
+        }
+    }
+}
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