Moving 2.x trunk

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@882795 13f79535-47bb-0310-9956-ffa450edef68

8 files changed, 1514 insertions, 0 deletions

diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/Contribution.java b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/Contribution.java
new file mode 100644
index 0000000000..4f4f861e2f
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/Contribution.java
@@ -0,0 +1,48 @@
+/*
+ * 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;
+
+/**
+ * Represents an SCA contribution uri + location.
+ *
+ * @version $Rev$ $Date$
+ */
+public final class Contribution {
+    private String uri;
+    private String location;
+    
+    /**
+     * Constructs a new SCA contribution.
+     * 
+     * @param uri
+     * @param location
+     */
+    public Contribution(String uri, String location) {
+        this.uri = uri;
+        this.location = location;
+    }
+    
+    public String getURI() {
+        return uri;
+    }
+    
+    public String getLocation() {
+        return location;
+    }
+}
\ No newline at end of file
diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/DomainManagerLauncher.java b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/DomainManagerLauncher.java
new file mode 100644
index 0000000000..ba795216a9
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/DomainManagerLauncher.java
@@ -0,0 +1,180 @@
+/*
+ * 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.domainManager;
+
+import java.io.IOException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Simple launcher for the SCA domain manager. 
+ *
+ * @version $Rev$ $Date$
+ */
+public class DomainManagerLauncher {
+    
+    static final Logger logger = Logger.getLogger(DomainManagerLauncher.class.getName());    
+
+    /**
+     * Constructs a new DomainManagerLauncher.
+     */
+    private DomainManagerLauncher() {
+    }
+    
+    /**
+     * Returns a new launcher instance.
+     *  
+     * @return a new launcher instance
+     */
+    public static DomainManagerLauncher newInstance() {
+        return new DomainManagerLauncher();
+    }
+
+    /**
+     * Creates a new DomainManager.
+     * 
+     * @return a new DomainManager
+     * @throws LauncherException
+     */
+    public <T> T createDomainManager() throws LauncherException {
+        return (T)domainManager(".");
+    }
+    
+    /**
+     * Creates a new DomainManager.
+     * 
+     * @param rootDirectory the domain's root configuration directory 
+     * 
+     * @return a new DomainManager
+     * @throws LauncherException
+     */
+    public <T> T createDomainManager(String rootDirectory) throws LauncherException {
+        return (T)domainManager(rootDirectory);
+    }
+    
+    public static void main(String[] args) throws Exception {
+        logger.info("Apache Tuscany SCA Domain Manager is starting...");
+
+        // Create a launcher
+        DomainManagerLauncher launcher = newInstance();
+        
+        Object domainManager = null;
+        ShutdownThread shutdown = null;
+        try {
+            while (true) {
+                
+                // Start the domain manager
+                domainManager = launcher.createDomainManager();
+                try {
+                    domainManager.getClass().getMethod("start").invoke(domainManager);
+                } catch (Exception e) {
+                    logger.log(Level.SEVERE, "SCA Domain Manager could not be started", e);
+                    throw e;
+                }
+                logger.info("SCA Domain Manager is now started.");
+                
+                // Install a shutdown hook
+                shutdown = new ShutdownThread(domainManager);
+                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 domain manager
+                if (domainManager != null) {
+                    Object dm = domainManager;
+                    domainManager = null;
+                    stopDomainManager(dm);
+                }
+                
+                // Quit
+                if (k == 'q' ) {
+                    break;
+                }
+            }
+        } catch (Exception e) {
+            // Stop the domain manager
+            if (domainManager != null) {
+                try {
+                    Object dm = domainManager;
+                    domainManager = null;
+                    stopDomainManager(dm);
+                } catch (Exception e2) {
+                }
+            }
+            throw e;
+            
+        } finally {
+            
+            // Remove the shutdown hook
+            if (shutdown != null) {
+                Runtime.getRuntime().removeShutdownHook(shutdown);
+            }
+        }
+    }
+
+    /**
+     * Stop the given domain manager.
+     * 
+     * @param domainManager
+     * @throws Exception
+     */
+    private static void stopDomainManager(Object domainManager) throws Exception {
+        try {
+            domainManager.getClass().getMethod("stop").invoke(domainManager);
+            logger.info("SCA Domain Manager is now stopped.");
+        } catch (Exception e) {
+            logger.log(Level.SEVERE, "SCA Domain Manager could not be stopped", e);
+            throw e;
+        }
+    }
+    
+    private static class ShutdownThread extends Thread {
+        private Object domainManager;
+
+        public ShutdownThread(Object domainManager) {
+            super();
+            this.domainManager = domainManager;
+        }
+
+        @Override
+        public void run() {
+            try {
+                stopDomainManager(domainManager);
+            } catch (Exception e) {
+                // Ignore
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/LauncherException.java b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/LauncherException.java
new file mode 100644
index 0000000000..39e8d81139
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/LauncherException.java
@@ -0,0 +1,55 @@
+/*
+ * 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;
+
+
+/**
+ * Denotes an error launching an SCA domain manager or node.
+ *
+ * @version $Rev$ $Date$
+ */
+public class LauncherException extends Exception {
+    private static final long serialVersionUID = 4581189418849190567L;
+
+    public LauncherException() {
+        super();
+    }
+
+    /**
+     * @param message
+     * @param cause
+     */
+    public LauncherException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    /**
+     * @param message
+     */
+    public LauncherException(String message) {
+        super(message);
+    }
+
+    /**
+     * @param cause
+     */
+    public LauncherException(Throwable cause) {
+        super(cause);
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeDaemonLauncher.java b/sca-java-2.x/trunk/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/trunk/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
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncher.java b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncher.java
new file mode 100644
index 0000000000..d8df30377b
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncher.java
@@ -0,0 +1,303 @@
+/*
+ * 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.node;
+
+import java.io.File;
+import java.io.IOException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.HelpFormatter;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.PosixParser;
+
+/**
+ * A launcher for SCA nodes in JSE.
+ * 
+ * Agruments:
+ * [-c <compositeURI>]: The composite URI
+ * [-t <ttl>]: Time to live in milliseconds before the node is started
+ * contribution1 ... contributionN: A list of contribution files or URLs 
+ *
+ * @version $Rev$ $Date$
+ */
+public class NodeLauncher {
+
+    static final Logger logger = Logger.getLogger(NodeLauncher.class.getName());
+
+    /**
+     * Constructs a new node launcher.
+     */
+    private NodeLauncher() {
+    }
+    
+    /**
+     * Returns a new launcher instance.
+     *  
+     * @return a new launcher instance
+     */
+    public static NodeLauncher newInstance() {
+        return new NodeLauncher();
+    }
+
+    /**
+     * Creates a new SCA node from the configuration URL
+     * 
+     * @param configurationURL the URL of the node configuration which is the ATOM feed
+     * that contains the URI of the composite and a collection of URLs for the contributions
+     *  
+     * @return a new SCA node.
+     * @throws LauncherException
+     */
+    public <T> T createNodeFromURL(String configurationURL) throws LauncherException {
+        return (T)node(configurationURL, null, null, null, null);
+    }
+    
+    /**
+     * Creates a new SCA Node.
+     * 
+     * @param compositeURI the URI of the composite to use 
+     * @param contributions the URI of the contributions that provides the composites and related 
+     * artifacts. If the list is empty, then we will use the thread context classloader to discover
+     * the contribution on the classpath
+     *   
+     * @return a new SCA node.
+     * @throws LauncherException
+     */
+    public <T> T createNode(String compositeURI, Contribution...contributions) throws LauncherException {
+        return (T)node(null, compositeURI, null, contributions, null);
+    }
+    
+    /**
+     * Creates a new SCA Node.
+     * 
+     * @param compositeURI the URI of the composite to use 
+     * @param compositeContent the XML content of the composite to use 
+     * @param contributions the URI of the contributions that provides the composites and related artifacts 
+     * @return a new SCA node.
+     * @throws LauncherException
+     */
+    public <T> T createNode(String compositeURI, String compositeContent, Contribution...contributions) throws LauncherException {
+        return (T)node(null, compositeURI, compositeContent, contributions, null);
+    }
+    
+    /**
+     * Create a SCA node based on the discovery of the contribution on the classpath for the 
+     * given classloader. This method should be treated a convenient shortcut with the following
+     * assumptions:
+     * <ul>
+     * <li>This is a standalone application and there is a deployable composite file on the classpath.
+     * <li>There is only one contribution which contains the deployable composite file physically in its packaging hierarchy.
+     * </ul> 
+     * 
+     * @param compositeURI The URI of the composite file relative to the root of the enclosing contribution
+     * @param classLoader The ClassLoader used to load the composite file as a resource. If the value is null,
+     * then thread context classloader will be used
+     * @return A newly created SCA node
+     */
+    public <T> T createNodeFromClassLoader(String compositeURI, ClassLoader classLoader) throws LauncherException {
+        return (T)node(null, compositeURI, null, null, classLoader);
+    }
+    
+    static Options getCommandLineOptions() {
+        Options options = new Options();
+        Option opt1 = new Option("c", "composite", true, "URI for the composite");
+        opt1.setArgName("compositeURI");
+        options.addOption(opt1);
+        Option opt2 = new Option("n", "node", true, "URI for the node configuration");
+        opt2.setArgName("nodeConfigurationURI");
+        options.addOption(opt2);
+        Option opt3 = new Option("t", "ttl", true, "Time to live");
+        opt3.setArgName("timeToLiveInMilliseconds");
+        // opt4.setType(long.class);
+        options.addOption(opt3);        
+        return options;
+    }
+
+    public static void main(String[] args) throws Exception {
+        CommandLineParser parser = new PosixParser();
+        Options options = getCommandLineOptions();
+        CommandLine cli = parser.parse(options, args);
+        
+        Object node = null;
+        ShutdownThread shutdown = null;
+        try {
+            while (true) {
+                if (cli.hasOption("node")) {
+                    
+                    // Create a node from a configuration URI
+                    String configurationURI = cli.getOptionValue("node");
+                    logger.info("SCA Node configuration: " + configurationURI);
+                    // Create a node launcher
+                    NodeLauncher launcher = newInstance();
+                    node = launcher.createNodeFromURL(configurationURI);
+                } else {
+                    
+                    // Create a node from a composite URI and a contribution location
+                    String compositeURI = cli.getOptionValue("composite");
+                    List<String> contribs = cli.getArgList();
+                    Contribution[] contributions = null;
+                    if (!contribs.isEmpty()) {
+                        contributions = new Contribution[contribs.size()];
+                        int index = 0;
+                        for (String contrib : contribs) {
+                            logger.info("SCA contribution: " + contrib);
+                            URL url = null;
+                            try {
+                                url = new URL(contrib);
+                            } catch(MalformedURLException e) {
+                                url = new File(contrib).toURI().toURL();
+                            }
+                            contributions[index] = new Contribution("contribution-" + index, url.toString());
+                            index++;
+                        }
+                    } else {
+                        HelpFormatter formatter = new HelpFormatter();
+                        formatter.setSyntaxPrefix("Usage: ");
+                        formatter.printHelp("java " + NodeLauncher.class.getName()
+                                            + " [-c <compositeURI>]"
+                                            + " [-t <ttl>]"
+                                            + " contribution1 ... contributionN", options);                        return;
+                    }
+                    // Create a node launcher
+                    logger.info("SCA composite: " + compositeURI);
+                    NodeLauncher launcher = newInstance();
+                    
+                    node = launcher.createNode(compositeURI, contributions);
+                }
+                
+                logger.info("Apache Tuscany SCA Node is starting...");
+
+                // Start the node
+                try {
+                    node.getClass().getMethod("start").invoke(node);
+                } catch (Exception e) {
+                    logger.log(Level.SEVERE, "SCA Node could not be started", e);
+                    throw e;
+                }
+                logger.info("SCA Node is now started.");
+                
+                // Install a shutdown hook
+                shutdown = new ShutdownThread(node);
+                Runtime.getRuntime().addShutdownHook(shutdown);
+
+                long ttl = Long.parseLong(cli.getOptionValue("ttl", "-1"));
+                if (ttl >= 0) {
+                    logger.info("Waiting for " + ttl + " milliseconds ...");
+                    Thread.sleep(ttl);
+                    // Stop the node
+                    if (node != null) {
+                        Object n = node;
+                        node = null;
+                        stopNode(n);
+                    }
+                    break; // Exit
+                }
+                
+                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 is now stopped.");
+        } catch (Exception e) {
+            logger.log(Level.SEVERE, "SCA Node 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
+            }
+        }
+    }
+}
diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java
new file mode 100644
index 0000000000..38dea77eda
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeLauncherUtil.java
@@ -0,0 +1,567 @@
+/*
+ * 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 java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FilenameFilter;
+import java.io.IOException;
+import java.io.Reader;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.StringTokenizer;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Common functions and constants used by the admin components.
+ *
+ * @version $Rev$ $Date$
+ */
+final class NodeLauncherUtil {
+    private static final String NODE_FACTORY = "org.apache.tuscany.sca.node.NodeFactory";
+
+    private static final Logger logger = Logger.getLogger(NodeLauncherUtil.class.getName());
+
+    private static final String TUSCANY_HOME = "TUSCANY_HOME";
+    private static final String TUSCANY_PATH = "TUSCANY_PATH";
+
+
+    /**
+     * Returns a ClassLoader for the Tuscany runtime JARs for use in a standalone
+     * J2SE environment.
+     *
+     * @param parentClassLoader
+     *
+     * @return
+     */
+    static ClassLoader standAloneRuntimeClassLoader(ClassLoader parentClassLoader) throws FileNotFoundException, URISyntaxException, MalformedURLException {
+        return runtimeClassLoader(parentClassLoader, new StandAloneJARFileNameFilter());
+    }
+
+    /**
+     * Returns a ClassLoader for the Tuscany runtime JARs for use in a Webapp
+     * environment.
+     *
+     * @param parentClassLoader
+     *
+     * @return
+     */
+    static ClassLoader webAppRuntimeClassLoader(ClassLoader parentClassLoader) throws FileNotFoundException, URISyntaxException, MalformedURLException {
+        return runtimeClassLoader(parentClassLoader, new WebAppJARFileNameFilter());
+    }
+
+    /**
+     * Returns a ClassLoader for the Tuscany runtime JARs.
+     *
+     * @param parentClassLoader
+     * @param filter
+     *
+     * @return
+     */
+    private static ClassLoader runtimeClassLoader(ClassLoader parentClassLoader, FilenameFilter filter) throws FileNotFoundException, URISyntaxException, MalformedURLException {
+        // First try to see if the runtime classes are already on the classpath
+        // If yes, skip the discovery to avoid duplicate jars
+        try {
+            Class.forName(NODE_FACTORY, false, parentClassLoader);
+            return parentClassLoader;
+        } catch (ClassNotFoundException e) {
+            // Ignore;
+        }
+        // Build list of runtime JARs
+        Set<URL> jarDirectoryURLs = new HashSet<URL>();
+        Set<URL> jarURLs = new HashSet<URL>();
+
+        // First determine the path to the launcher class
+        String resource = NodeLauncherUtil.class.getName().replace('.', '/') + ".class";
+        URL url = NodeLauncherUtil.class.getClassLoader().getResource(resource);
+        if (url == null) {
+            throw new FileNotFoundException(resource);
+        }
+        URI uri = url.toURI();
+
+        // If the launcher class is in a JAR, add all runtime JARs from directory containing
+        // that JAR (e.g. the Tuscany modules directory) as well as the ../modules and
+        // ../lib directories
+        String scheme = uri.getScheme();
+        if (scheme.equals("jar")) {
+            String path = uri.toString().substring(4);
+            int i = path.indexOf("!/");
+            if (i != -1) {
+                path = path.substring(0, i);
+                uri = URI.create(path);
+            }
+
+            File file = new File(uri);
+            if (file.exists()) {
+                File jarDirectory = file.getParentFile();
+                if (jarDirectory != null && jarDirectory.exists()) {
+                    File homeDirectory = jarDirectory.getParentFile();
+                    if (homeDirectory != null && homeDirectory.exists()) {
+                        collectJARFiles(homeDirectory.getPath(), jarDirectoryURLs, jarURLs, filter);
+                    }
+                }
+            }
+        }
+
+        // Look for a TUSCANY_HOME system property or environment variable
+        // Add all the JARs found under $TUSCANY_HOME, $TUSCANY_HOME/modules
+        // and $TUSCANY_HOME/lib
+        String home = System.getProperty(TUSCANY_HOME);
+        if (home == null || home.length() == 0) {
+            home = System.getenv(TUSCANY_HOME);
+        }
+        if (home != null && home.length() != 0) {
+            logger.fine(TUSCANY_HOME + ": " + home);
+            collectJARFiles(home, jarDirectoryURLs, jarURLs, filter);
+        }
+
+        // Look for a TUSCANY_PATH system property or environment variable
+        // Add all the JARs found under $TUSCANY_PATH, $TUSCANY_PATH/modules
+        // and $TUSCANY_PATH/lib
+        String ext = System.getProperty(TUSCANY_PATH);
+        if (ext == null || ext.length() == 0) {
+            ext = System.getenv(TUSCANY_PATH);
+        }
+        if (ext != null && ext.length() != 0) {
+            logger.fine(TUSCANY_PATH + ": " + ext);
+            String separator = System.getProperty("path.separator");
+            for (StringTokenizer tokens = new StringTokenizer(ext, separator); tokens.hasMoreTokens(); ) {
+                collectJARFiles(tokens.nextToken(), jarDirectoryURLs, jarURLs, filter);
+            }
+        }
+
+        // Return the runtime class loader
+        if (!jarURLs.isEmpty()) {
+            // Remove the URLs which are already in the parent classloader
+            if (parentClassLoader instanceof URLClassLoader) {
+                URLClassLoader cl = (URLClassLoader)parentClassLoader;
+                jarURLs.removeAll(Arrays.asList(cl.getURLs()));
+            }
+
+            // Return a ClassLoader configured with the runtime JARs
+            ClassLoader classLoader = new RuntimeClassLoader(jarURLs.toArray(new URL[jarURLs.size()]), parentClassLoader);
+            return classLoader;
+
+        } else {
+            return null;
+        }
+    }
+
+    /**
+     * Collect JAR files under the given directory.
+     *
+     * @param directory
+     * @param jarDirectoryURLs
+     * @param jarURLs
+     * @param filter
+     * @throws MalformedURLException
+     */
+    private static void collectJARFiles(String directory, Set<URL> jarDirectoryURLs, Collection<URL> jarURLs, FilenameFilter filter)
+        throws MalformedURLException {
+        File directoryFile = new File(directory);
+        URL directoryURL = directoryFile.toURI().toURL();
+        if (!jarDirectoryURLs.contains(directoryURL) && directoryFile.exists()) {
+
+            // Collect files under $TUSCANY_HOME
+            jarDirectoryURLs.add(directoryURL);
+            collectJARFiles(directoryFile, jarURLs, filter, false);
+
+            // Collect files under $TUSCANY_HOME/modules
+            File modulesDirectory = new File(directoryFile, "modules");
+            URL modulesDirectoryURL = modulesDirectory.toURI().toURL();
+            if (!jarDirectoryURLs.contains(modulesDirectoryURL) && modulesDirectory.exists()) {
+                jarDirectoryURLs.add(modulesDirectoryURL);
+                collectJARFiles(modulesDirectory, jarURLs, filter, true);
+            }
+
+            // Collect files under $TUSCANY_HOME/lib
+            File libDirectory = new File(directoryFile, "lib");
+            URL libDirectoryURL = libDirectory.toURI().toURL();
+            if (!jarDirectoryURLs.contains(libDirectoryURL) && libDirectory.exists()) {
+                jarDirectoryURLs.add(libDirectoryURL);
+                collectJARFiles(libDirectory, jarURLs, filter, true);
+            }
+        }
+    }
+
+    /**
+     * Collect JAR files in the given directory
+     * @param directory
+     * @param urls
+     * @param filter
+     * @param recursive
+     * @throws MalformedURLException
+     */
+    private static void collectJARFiles(File directory, Collection<URL> urls, FilenameFilter filter, boolean recursive) throws MalformedURLException {
+        File[] files = directory.listFiles(filter);
+        if (files != null) {
+            int count = 0;
+            for (File file: files) {
+                if (recursive && file.isDirectory()) {
+                    collectJARFiles(file, urls, filter, recursive);
+                } else if (file.isFile()) {
+                    urls.add(file.toURI().toURL());
+                    count++;
+                }
+            }
+            if (count != 0 && logger.isLoggable(Level.FINE)) {
+                logger.fine("Runtime classpath: "+ count + " JAR" + (count > 1? "s":"")+ " from " + directory.toString());
+            }
+        }
+    }
+
+    /**
+     * A file name filter used to filter JAR files.
+     */
+    private static class StandAloneJARFileNameFilter implements FilenameFilter {
+
+        public boolean accept(File dir, String name) {
+            if(new File(dir, name).isDirectory()) {
+                return true;
+            }
+            name = name.toLowerCase();
+
+            // Exclude tuscany-sca-all and tuscany-sca-manifest as they duplicate
+            // code in the individual runtime module JARs
+            if (name.startsWith("tuscany-sca-all")) {
+                return false;
+            }
+            if (name.startsWith("tuscany-sca-manifest")) {
+                return false;
+            }
+
+            if ("features".equals(dir.getName()) && name.startsWith("equinox-manifest")) {
+                return false;
+            }
+
+            // Filter out the Tomcat and Webapp hosts
+            if (name.startsWith("tuscany-host-tomcat") ||
+                name.startsWith("tuscany-host-webapp")) {
+                //FIXME This is temporary
+                return false;
+            }
+
+            // Include JAR and MAR files
+            if (name.endsWith(".jar")) {
+                return true;
+            }
+            if (name.endsWith(".mar")) {
+                return true;
+            }
+            return false;
+        }
+    }
+
+    /**
+     * A file name filter used to filter JAR files.
+     */
+    private static class WebAppJARFileNameFilter extends StandAloneJARFileNameFilter {
+
+        @Override
+        public boolean accept(File dir, String name) {
+            if (!super.accept(dir, name)) {
+                return false;
+            }
+            name = name.toLowerCase();
+
+            // Exclude servlet-api JARs
+            if (name.startsWith("servlet-api")) {
+                return false;
+            }
+
+            // Exclude the Tomcat and Jetty hosts
+            if (name.startsWith("tuscany-host-tomcat") || name.startsWith("tuscany-host-jetty")) {
+                //FIXME This is temporary
+                return false;
+            }
+
+            return true;
+        }
+    }
+
+
+    /**
+     * Creates a new node.
+     *
+     * @param compositeURI
+     * @param contributions
+     * @throws LauncherException
+     */
+    static Object node(String configurationURI, String compositeURI, String compositeContent, Contribution[] contributions, ClassLoader contributionClassLoader) throws LauncherException {
+        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+        try {
+
+            // Set up runtime ClassLoader
+            ClassLoader runtimeClassLoader = runtimeClassLoader(Thread.currentThread().getContextClassLoader(),
+                                                                new StandAloneJARFileNameFilter());
+            if (runtimeClassLoader != null) {
+                Thread.currentThread().setContextClassLoader(runtimeClassLoader);
+            }
+
+            // Use Java reflection to create the node as only the runtime class
+            // loader knows the runtime classes required by the node
+            String className = NODE_FACTORY;
+            Class<?> bootstrapClass;
+            if (runtimeClassLoader != null) {
+                bootstrapClass = Class.forName(className, true, runtimeClassLoader);
+            } else {
+                bootstrapClass = Class.forName(className);
+            }
+
+            Object node =
+                createNode(bootstrapClass,
+                           configurationURI,
+                           compositeURI,
+                           compositeContent,
+                           contributions,
+                           contributionClassLoader);
+
+            return node;
+
+        } catch (Exception e) {
+            NodeLauncher.logger.log(Level.SEVERE, "SCA Node could not be created", e);
+            throw new LauncherException(e);
+        } finally {
+            Thread.currentThread().setContextClassLoader(tccl);
+        }
+    }
+
+    private static Object createNode(Class<?> bootstrapClass,
+                                     String configurationURI,
+                                     String compositeURI,
+                                     String compositeContent,
+                                     Contribution[] contributions,
+                                     ClassLoader contributionClassLoader) throws NoSuchMethodException,
+        IllegalAccessException, InvocationTargetException, MalformedURLException {
+        Method newInstance = bootstrapClass.getMethod("newInstance");
+        Object nodeFactory = newInstance.invoke(null);
+
+        Object node;
+        if (configurationURI != null) {
+
+            URL url = null;
+            URI uri = URI.create(configurationURI);
+            if (uri.getScheme() == null) {
+                uri = new File(configurationURI).toURI();
+            }
+            url = uri.toURL();
+
+            // NodeFactory.createNode(URL)
+            Method create = bootstrapClass.getMethod("createNode", URL.class);
+            node = create.invoke(nodeFactory, url);
+
+        } else if (contributionClassLoader != null) {
+
+            // NodeFactory.createNode(String, ClassLoader)
+            Method create = bootstrapClass.getMethod("createNode", String.class, ClassLoader.class);
+            node = create.invoke(nodeFactory, compositeURI, contributionClassLoader);
+
+        } else if (compositeContent != null) {
+
+            // NodeFactory.createNode(Reader, Stringp[], String[])
+            Method create = bootstrapClass.getMethod("createNode", Reader.class, String[].class, String[].class);
+            String[] uris = new String[contributions.length];
+            String[] locations = new String[contributions.length];
+            for (int i = 0; i < contributions.length; i++) {
+                uris[i] = contributions[i].getURI();
+                locations[i] = contributions[i].getLocation();
+            }
+            node = create.invoke(nodeFactory, compositeContent, uris, locations);
+
+        } else {
+
+            // NodeFactory.createNode(String, Stringp[], String[])
+            Method create = bootstrapClass.getMethod("createNode", String.class, String[].class, String[].class);
+            String[] uris = new String[contributions.length];
+            String[] locations = new String[contributions.length];
+            for (int i = 0; i < contributions.length; i++) {
+                uris[i] = contributions[i].getURI();
+                locations[i] = contributions[i].getLocation();
+            }
+            node = create.invoke(nodeFactory, compositeURI, uris, locations);
+        }
+        return node;
+    }
+
+    /**
+     * Creates a new node daemon.
+     *
+     * @throws LauncherException
+     */
+    static Object nodeDaemon() throws LauncherException {
+        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+        try {
+            // Set up runtime ClassLoader
+            ClassLoader runtimeClassLoader = runtimeClassLoader(Thread.currentThread().getContextClassLoader(),
+                                                                new StandAloneJARFileNameFilter());
+            if (runtimeClassLoader != null) {
+                Thread.currentThread().setContextClassLoader(runtimeClassLoader);
+            }
+
+            // Use Java reflection to create the node daemon as only the runtime class
+            // loader knows the runtime classes required by the node
+            String className = "org.apache.tuscany.sca.implementation.node.launcher.NodeImplementationDaemonBootstrap";
+            Class<?> bootstrapClass;
+            if (runtimeClassLoader != null) {
+                bootstrapClass = Class.forName(className, true, runtimeClassLoader);
+            } else {
+                bootstrapClass = Class.forName(className);
+            }
+            Object bootstrap = bootstrapClass.getConstructor().newInstance();
+
+            Object nodeDaemon = bootstrapClass.getMethod("getNode").invoke(bootstrap);
+            return nodeDaemon;
+
+        } catch (Exception e) {
+            NodeDaemonLauncher.logger.log(Level.SEVERE, "SCA Node Daemon could not be created", e);
+            throw new LauncherException(e);
+        } finally {
+            Thread.currentThread().setContextClassLoader(tccl);
+        }
+    }
+
+    /**
+     * Creates a new domain manager.
+     *
+     * @throws LauncherException
+     */
+    static Object domainManager(String rootDirectory) throws LauncherException {
+        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+        try {
+            // Set up runtime ClassLoader
+            ClassLoader runtimeClassLoader = runtimeClassLoader(Thread.currentThread().getContextClassLoader(),
+                                                                new StandAloneJARFileNameFilter());
+            if (runtimeClassLoader != null) {
+                Thread.currentThread().setContextClassLoader(runtimeClassLoader);
+            }
+
+            // Use Java reflection to create the node daemon as only the runtime class
+            // loader knows the runtime classes required by the node
+            String className = "org.apache.tuscany.sca.domain.manager.launcher.DomainManagerLauncherBootstrap";
+            Class<?> bootstrapClass;
+            if (runtimeClassLoader != null) {
+                bootstrapClass = Class.forName(className, true, runtimeClassLoader);
+            } else {
+                bootstrapClass = Class.forName(className);
+            }
+            Constructor<?> constructor = bootstrapClass.getConstructor(String.class);
+            Object bootstrap = constructor.newInstance(rootDirectory);
+
+            Object domainManager = bootstrapClass.getMethod("getNode").invoke(bootstrap);
+            return domainManager;
+
+        } catch (Exception e) {
+            DomainManagerLauncher.logger.log(Level.SEVERE, "SCA Domain Manager could not be created", e);
+            throw new LauncherException(e);
+        } finally {
+            Thread.currentThread().setContextClassLoader(tccl);
+        }
+    }
+
+    /**
+     * Simple URL class loader for the runtime JARs
+     */
+    private static class RuntimeClassLoader extends URLClassLoader {
+        private static final ClassLoader systemClassLoader = ClassLoader.getSystemClassLoader();
+        private ClassLoader parent;
+
+        /**
+         * Constructs a new class loader.
+         * @param urls
+         * @param parent
+         */
+        private RuntimeClassLoader(URL[] urls, ClassLoader parent) {
+            super(urls);
+            this.parent = parent;
+        }
+
+        @Override
+        public URL findResource(String name) {
+            URL url = super.findResource(name);
+            if (url == null) {
+                url = parent.getResource(name);
+            }
+            return url;
+        }
+
+        @Override
+        public Enumeration<URL> findResources(String name) throws IOException {
+            Enumeration<URL> resources = super.findResources(name);
+            Enumeration<URL> parentResources = parent.getResources(name);
+            List<URL> allResources = new ArrayList<URL>();
+            for (; resources.hasMoreElements(); ) {
+                allResources.add(resources.nextElement());
+            }
+            for (; parentResources.hasMoreElements(); ) {
+                allResources.add(parentResources.nextElement());
+            }
+            return Collections.enumeration(allResources);
+        }
+
+        @Override
+        protected Class<?> findClass(String name) throws ClassNotFoundException {
+            Class<?> cl;
+
+            // First try to load the class using the parent classloader
+            try {
+                cl = parent.loadClass(name);
+                ClassLoader loadedBy = cl.getClassLoader();
+
+                // If the class was not loaded directly by the parent classloader
+                // or the system classloader try to load a local version of the class
+                // using our RuntimeClassloader instead
+                if (loadedBy != parent &&
+                    loadedBy != systemClassLoader &&
+                    loadedBy != null) {
+
+                    try {
+                        cl = super.findClass(name);
+                    } catch (ClassNotFoundException e) {
+                        // No class alternative was found in our RuntimeClassloader,
+                        // use the class found in the parent classloader hierarchy
+                    }
+                }
+            } catch (ClassNotFoundException e) {
+
+                // The class was not found by the parent class loader, try
+                // to load it using our RuntimeClassloader
+                cl = super.findClass(name);
+            }
+
+            return cl;
+        }
+    }
+
+}
diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeMain.java b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeMain.java
new file mode 100644
index 0000000000..77751dcc47
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeMain.java
@@ -0,0 +1,62 @@
+/*
+ * 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 org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.CommandLineParser;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.OptionGroup;
+import org.apache.commons.cli.Options;
+import org.apache.commons.cli.PosixParser;
+
+
+/**
+ * Main class for this JAR.
+ * With a "-nodeDaemon or -nd" this class launches the SCA Node Daemon.
+ * With a "-domainManager or -dm" argument it launches the SCA domain admin node.
+ * With any other argument it launches an SCA Node. 
+ *  
+ * @version $Rev$ $Date$
+ */
+public class NodeMain {
+
+    public static void main(String[] args) throws Exception {
+        CommandLineParser parser = new PosixParser();
+        Options options = new Options();
+        OptionGroup group = new OptionGroup();
+        group.addOption(new Option("dm", "domainManager", false, "Domain Manager"));
+        group.addOption(new Option("nd", "nodeDaemon", false, "Node Domain"));
+        options.addOptionGroup(group);
+        
+        // Add options from NodeLauncher to avoid UnrecognizedOptionException
+        for (Object o : NodeLauncher.getCommandLineOptions().getOptions()) {
+            options.addOption((Option)o);
+        }
+        
+        CommandLine cli = parser.parse(options, args);
+        if (cli.hasOption("nd")) {
+            NodeDaemonLauncher.main(args);
+        } else if (cli.hasOption("dm")) {
+            DomainManagerLauncher.main(args);
+        } else {
+            NodeLauncher.main(args);
+        }
+    }
+}
\ No newline at end of file
diff --git a/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeServletFilter.java b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeServletFilter.java
new file mode 100644
index 0000000000..5345363031
--- /dev/null
+++ b/sca-java-2.x/trunk/modules/node-launcher/src/main/java/org/apache/tuscany/sca/node/launcher/NodeServletFilter.java
@@ -0,0 +1,130 @@
+/*
+ * 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.webAppRuntimeClassLoader;
+
+import java.io.IOException;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+
+/**
+ * A Servlet filter that forwards service requests to the Servlets registered with
+ * the Tuscany ServletHost.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class NodeServletFilter implements Filter {
+    private static final long serialVersionUID = 1L;
+
+    private static final String NODE_WEB_APP_SERVLET_HOST = "org.apache.tuscany.sca.implementation.node.webapp.NodeWebAppServletHost";
+
+    private static final Logger logger = Logger.getLogger(NodeServletFilter.class.getName());
+
+    private ClassLoader runtimeClassLoader;
+    private Class<?> servletHostClass;
+    private Object servletHost;
+    private Filter filter;
+
+    public void init(FilterConfig filterConfig) throws ServletException {
+        logger.info("Apache Tuscany SCA WebApp Node is starting...");
+
+        try {
+            // Get the Tuscany runtime ClassLoader
+            ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+            runtimeClassLoader = webAppRuntimeClassLoader(getClass().getClassLoader());
+            
+            try {
+                if (runtimeClassLoader != null) {
+                    Thread.currentThread().setContextClassLoader(runtimeClassLoader);
+                }
+        
+                // Load the Tuscany WebApp Servlet host and get the host instance
+                // for the current webapp
+                String className = NODE_WEB_APP_SERVLET_HOST; 
+                if (runtimeClassLoader != null) {
+                    servletHostClass = Class.forName(className, true, runtimeClassLoader);
+                } else {
+                    servletHostClass = Class.forName(className);
+                }
+                servletHost = servletHostClass.getMethod("servletHost").invoke(null);
+        
+                // Initialize the Servlet host
+                servletHostClass.getMethod("init", FilterConfig.class).invoke(servletHost, filterConfig);
+    
+                // The Servlet host also implements the filter interface 
+                filter = (Filter)servletHost;
+                
+            } finally {
+                Thread.currentThread().setContextClassLoader(tccl);
+            }
+            
+        } catch (Exception e) {
+            logger.log(Level.SEVERE, "Error Starting SCA WebApp Node", e);
+            throw new ServletException(e);
+        }
+
+        logger.info("SCA WebApp Node started.");
+    }
+
+    public void destroy() {
+        logger.info("Apache Tuscany WebApp Node stopping...");
+        if (servletHost != null) {
+            ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+            try {
+                if (runtimeClassLoader != null) {
+                    Thread.currentThread().setContextClassLoader(runtimeClassLoader);
+                }
+                
+                servletHostClass.getMethod("destroy").invoke(servletHost);
+                
+            } catch (Exception e) {
+                logger.log(Level.SEVERE, "Error Stopping SCA WebApp Node", e);
+            } finally {
+                Thread.currentThread().setContextClassLoader(tccl);
+            }
+        }
+        logger.info("SCA WebApp Node stopped.");
+    }
+
+    public void doFilter(ServletRequest request, ServletResponse response, javax.servlet.FilterChain chain)
+        throws IOException, ServletException {
+
+        // Delegate to the Servlet host filter
+        ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+        try {
+            if (runtimeClassLoader != null) {
+                Thread.currentThread().setContextClassLoader(runtimeClassLoader);
+            }
+            
+            filter.doFilter(request, response, chain);
+            
+        } finally {
+            Thread.currentThread().setContextClassLoader(tccl);
+        }
+    }
+
+}