Copy modules for event prototype

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@705212 13f79535-47bb-0310-9956-ffa450edef68

8 files changed, 1286 insertions, 0 deletions

diff --git a/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/ServletWrapper.java b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/ServletWrapper.java
new file mode 100644
index 0000000000..a0b384d554
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/ServletWrapper.java
@@ -0,0 +1,58 @@
+/*
+ * 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.http.tomcat;
+
+import javax.servlet.Servlet;
+import javax.servlet.ServletException;
+
+import org.apache.catalina.core.StandardWrapper;
+
+/**
+ * A Servlet wrapper.
+ * 
+ * @version $Rev$ $Date$
+ */
+public class ServletWrapper extends StandardWrapper {
+    private static final long serialVersionUID = 1L;
+
+    private final Servlet servlet;
+
+    public ServletWrapper(Servlet servlet) {
+        this.servlet = servlet;
+    }
+
+    @Override
+    public synchronized Servlet loadServlet() {
+        return servlet;
+    }
+
+    @Override
+    public Servlet getServlet() {
+        return servlet;
+    }
+    
+    public void initServlet() throws ServletException {
+        servlet.init(facade);
+    }
+    
+    public void destroyServlet() {
+        servlet.destroy();
+    }
+
+}
diff --git a/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatDefaultServlet.java b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatDefaultServlet.java
new file mode 100644
index 0000000000..5d9b65503a
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatDefaultServlet.java
@@ -0,0 +1,114 @@
+/*
+ * 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.http.tomcat;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URL;
+import java.net.URLConnection;
+import java.util.Hashtable;
+
+import javax.naming.NamingException;
+import javax.naming.directory.Attributes;
+import javax.naming.directory.BasicAttributes;
+import javax.naming.directory.DirContext;
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+
+import org.apache.catalina.servlets.DefaultServlet;
+import org.apache.naming.resources.FileDirContext;
+import org.apache.naming.resources.ProxyDirContext;
+import org.apache.naming.resources.Resource;
+
+/**
+ * DefaultServlet implementation for Tomcat.
+ *
+ * @version $Rev$ $Date$
+ */
+public class TomcatDefaultServlet extends DefaultServlet {
+    private static final long serialVersionUID = -7503581551326796573L;
+    
+    private String documentRoot;
+    private ProxyDirContext proxyDirContext;
+    
+    public TomcatDefaultServlet(String servletPath, String documentRoot) {
+        this.documentRoot = documentRoot;
+        
+        DirContext dirContext;
+        URI uri = URI.create(documentRoot);
+        if (!"file".equals(uri.getScheme())) {
+            
+            dirContext = new FileDirContext() {
+                @Override
+                public Attributes getAttributes(String name) throws NamingException {
+                    return new BasicAttributes();
+                }
+                
+                @Override
+                public Object lookup(String name) throws NamingException {
+                    
+                    try {
+                        final URL url = new URL(TomcatDefaultServlet.this.documentRoot + name);
+                        return new Resource() {
+                            @Override
+                            public InputStream streamContent() throws IOException {
+                                URLConnection connection = url.openConnection();
+                                connection.setUseCaches(false);
+                                return connection.getInputStream();
+                            }
+                        };
+                    } catch (MalformedURLException e) {
+                        throw new NamingException(e.toString());
+                    }
+                }
+            };
+            
+        } else {
+            dirContext = new FileDirContext();
+            ((FileDirContext)dirContext).setDocBase(uri.getPath());
+        }
+        proxyDirContext = new ProxyDirContext(new Hashtable(), dirContext);
+        resources = proxyDirContext;            
+    }
+    
+    @Override
+    public void init() throws ServletException {
+        super.init();
+        resources = proxyDirContext;
+    }
+    
+    @Override
+    public void init(ServletConfig servletConfig) throws ServletException {
+        super.init(servletConfig);
+        resources = proxyDirContext;
+    }
+
+    @Override
+    protected String getRelativePath(HttpServletRequest request) {
+        String path = request.getPathInfo();
+        if (path == null || path.length() == 0) {
+            path = "/";
+        }
+        return path;
+    }
+}
diff --git a/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatServer.java b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatServer.java
new file mode 100644
index 0000000000..5ea1701c05
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatServer.java
@@ -0,0 +1,653 @@
+/*
+ * 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.http.tomcat;
+
+import java.beans.PropertyChangeListener;
+import java.net.InetAddress;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URL;
+import java.net.UnknownHostException;
+import java.security.AccessController;
+import java.security.KeyStore;
+import java.security.PrivilegedAction;
+import java.security.PrivilegedActionException;
+import java.security.PrivilegedExceptionAction;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.Map.Entry;
+import java.util.concurrent.Executor;
+import java.util.logging.Logger;
+
+import javax.servlet.RequestDispatcher;
+import javax.servlet.Servlet;
+import javax.servlet.ServletException;
+
+import org.apache.catalina.Container;
+import org.apache.catalina.Context;
+import org.apache.catalina.Lifecycle;
+import org.apache.catalina.LifecycleException;
+import org.apache.catalina.Loader;
+import org.apache.catalina.connector.Connector;
+import org.apache.catalina.core.StandardContext;
+import org.apache.catalina.core.StandardEngine;
+import org.apache.catalina.core.StandardHost;
+import org.apache.catalina.startup.ContextConfig;
+import org.apache.coyote.http11.Http11Protocol;
+import org.apache.tomcat.util.buf.MessageBytes;
+import org.apache.tomcat.util.http.mapper.MappingData;
+import org.apache.tomcat.util.net.JIoEndpoint;
+import org.apache.tuscany.sca.host.http.DefaultResourceServlet;
+import org.apache.tuscany.sca.host.http.ServletHost;
+import org.apache.tuscany.sca.host.http.ServletMappingException;
+import org.apache.tuscany.sca.work.WorkScheduler;
+
+/**
+ * A Tomcat based implementation of ServletHost.
+ *
+ * @version $Rev$ $Date$
+ */
+@SuppressWarnings("deprecation")
+public class TomcatServer implements ServletHost {
+    private static final Logger logger = Logger.getLogger(TomcatServer.class.getName());
+
+    private int defaultPortNumber = 8080;
+
+    private final class TuscanyLoader implements Loader {
+        private final ClassLoader tccl;
+        private boolean delegate;
+        private boolean reloadable;
+        private Container container;
+        private List<String> repos = new ArrayList<String>();
+        private List<PropertyChangeListener> listeners = new ArrayList<PropertyChangeListener>();
+
+        private TuscanyLoader(ClassLoader tccl) {
+            this.tccl = tccl;
+        }
+
+        public void addPropertyChangeListener(PropertyChangeListener listener) {
+            listeners.add(listener);
+        }
+
+        public void addRepository(String repository) {
+            repos.add(repository);
+        }
+
+        public void backgroundProcess() {
+        }
+
+        public String[] findRepositories() {
+            return repos.toArray(new String[repos.size()]);
+        }
+
+        public Container getContainer() {
+            return container;
+        }
+
+        public boolean getDelegate() {
+            return delegate;
+        }
+
+        public String getInfo() {
+            return "Tuscany Loader for Embedded Tomcat";
+        }
+
+        public boolean getReloadable() {
+            return reloadable;
+        }
+
+        public boolean modified() {
+            return false;
+        }
+
+        public void removePropertyChangeListener(PropertyChangeListener listener) {
+            listeners.remove(listener);
+        }
+
+        public void setContainer(Container container) {
+            this.container = container;
+        }
+
+        public void setDelegate(boolean delegate) {
+            this.delegate = delegate;
+        }
+
+        public void setReloadable(boolean reloadable) {
+            this.reloadable = reloadable;
+        }
+
+        public ClassLoader getClassLoader() {
+            return tccl;
+        }
+    }
+
+    /**
+     * Represents a port and the server that serves it.
+     */
+    private class Port {
+        private StandardEngine engine;
+        private StandardHost host;
+        private Connector connector;
+
+        private Port(StandardEngine engine, StandardHost host, Connector connector) {
+            this.engine = engine;
+            this.host = host;
+            this.connector = connector;
+        }
+
+        public StandardEngine getEngine() {
+            return engine;
+        }
+
+        public StandardHost getHost() {
+            return host;
+        }
+
+        public Connector getConnector() {
+            return connector;
+        }
+    }
+
+    private Map<Integer, Port> ports = new HashMap<Integer, Port>();
+
+    private WorkScheduler workScheduler;
+
+    private String contextPath = "/";
+
+    /**
+     * Constructs a new embedded Tomcat server.
+     *
+     * @param workScheduler the WorkScheduler to use to process requests.
+     */
+    public TomcatServer(WorkScheduler workScheduler) {
+        this.workScheduler = workScheduler;
+    }
+
+    public void setDefaultPort(int port) {
+        defaultPortNumber = port;
+    }
+
+    public int getDefaultPort() {
+        return defaultPortNumber;
+    }
+
+    /**
+     * Stop all the started servers.
+     */
+    public void stop() throws ServletMappingException {
+        if (!ports.isEmpty()) {
+            try {
+                Set<Entry<Integer, Port>> entries = new HashSet<Entry<Integer, Port>>(ports.entrySet());
+                for (Entry<Integer, Port> entry : entries) {
+                    Port port = entry.getValue();
+                    port.getConnector().stop();
+                    port.getEngine().stop();
+                    ports.remove(entry.getKey());
+                }
+            } catch (Exception e) {
+                throw new ServletMappingException(e);
+            }
+        }
+    }
+
+    public void addServletMapping(String suri, Servlet servlet) {
+        URI uri = URI.create(suri);
+
+        // Get the URI scheme and port
+        String scheme = uri.getScheme();
+        if (scheme == null) {
+            scheme = "http";
+        }
+        final int portNumber = (uri.getPort() == -1 ? defaultPortNumber : uri.getPort());
+
+        // Get the port object associated with the given port number
+        Port port = ports.get(portNumber);
+        if (port == null) {
+
+            // Create an engine
+            // Allow privileged access to read properties. Requires PropertiesPermission read in
+            // security policy.
+            final StandardEngine engine = AccessController.doPrivileged(new PrivilegedAction<StandardEngine>() {
+                public StandardEngine run() {
+                    return new StandardEngine();
+                }
+            });
+
+            engine.setBaseDir("");
+            engine.setDefaultHost("localhost");
+            engine.setName("engine/" + portNumber);
+
+            // Create a host
+            final StandardHost host = new StandardHost();
+            host.setAppBase("");
+            host.setName("localhost");
+            // Allow privileged access to read properties. Requires PropertiesPermission read in
+            // security policy.
+            AccessController.doPrivileged(new PrivilegedAction<Object>() {
+                public Object run() {
+                    engine.addChild(host);
+                    return null;
+                }
+            });
+
+            // Create the root context
+            StandardContext context = new StandardContext();
+            final ClassLoader tccl = Thread.currentThread().getContextClassLoader();
+            context.setLoader(new TuscanyLoader(tccl));
+            // context.setParentClassLoader(tccl.getParent());
+            context.setDocBase("");
+            context.setPath("");
+            ContextConfig config = new ContextConfig();
+            ((Lifecycle)context).addLifecycleListener(config);
+            host.addChild(context);
+
+            // Install an HTTP connector
+            // Allow privileged access to read properties. Requires PropertiesPermission read in
+            // security policy.
+            try {
+                AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+                    public Object run() throws LifecycleException {
+                        engine.start();
+                        return null;
+                    }
+                });
+            } catch (PrivilegedActionException e) {
+                // throw (LifecycleException)e.getException();
+                throw new ServletMappingException(e);
+            }
+            Connector connector;
+            // Allow privileged access to read properties. Requires PropertiesPermission read in
+            // security policy.
+            try {
+                final String protocol = scheme;
+                connector = AccessController.doPrivileged(new PrivilegedExceptionAction<CustomConnector>() {
+                    public CustomConnector run() throws Exception {
+                        CustomConnector customConnector = new CustomConnector();
+                        customConnector.setPort(portNumber);
+                        customConnector.setContainer(engine);
+
+                        if ("https".equalsIgnoreCase(protocol)) {
+                            configureSSL(customConnector);
+                            ((Http11Protocol) customConnector.getProtocolHandler()).setSSLEnabled(true);
+                        }
+                        customConnector.initialize();
+                        customConnector.start();
+                        return customConnector;
+                    }
+
+                    private void configureSSL(CustomConnector customConnector) {
+                        String trustStore = System.getProperty("javax.net.ssl.trustStore");
+                        String trustStorePass = System.getProperty("javax.net.ssl.trustStorePassword");
+                        String keyStore = System.getProperty("javax.net.ssl.keyStore");
+                        String keyStorePass = System.getProperty("javax.net.ssl.keyStorePassword");
+
+                        customConnector.setProperty("protocol", "TLS");
+
+                        customConnector.setProperty("keystore", keyStore);
+                        customConnector.setProperty("keypass", keyStorePass);
+                        String keyStoreType =
+                            System.getProperty("javax.net.ssl.keyStoreType", KeyStore.getDefaultType());
+                        String trustStoreType =
+                            System.getProperty("javax.net.ssl.trustStoreType", KeyStore.getDefaultType());
+                        customConnector.setProperty("keytype", keyStoreType);
+                        customConnector.setProperty("trusttype", trustStoreType);
+                        customConnector.setProperty("truststore", trustStore);
+                        customConnector.setProperty("trustpass", trustStorePass);
+
+                        customConnector.setProperty("clientauth", "false");
+                        customConnector.setProtocol("HTTP/1.1");
+                        customConnector.setScheme(protocol);
+                        customConnector.setProperty("backlog", "10");
+                        customConnector.setSecure(true);
+                    }
+                });
+            } catch (Exception e) {
+                throw new ServletMappingException(e);
+            }
+            // Keep track of the running server
+            port = new Port(engine, host, connector);
+            ports.put(portNumber, port);
+        }
+
+        // Register the Servlet mapping
+        String path = uri.getPath();
+
+        if (!path.startsWith("/")) {
+            path = '/' + path;
+        }
+
+        if (!path.startsWith(contextPath)) {
+            path = contextPath + path;
+        }
+
+        ServletWrapper wrapper;
+        if (servlet instanceof DefaultResourceServlet) {
+            String defaultServletPath = path;
+
+            // Optimize the handling of resource requests, use the Tomcat default Servlet
+            // instead of our default resource Servlet
+            if (defaultServletPath.endsWith("*")) {
+                defaultServletPath = defaultServletPath.substring(0, defaultServletPath.length() - 1);
+            }
+            if (defaultServletPath.endsWith("/")) {
+                defaultServletPath = defaultServletPath.substring(0, defaultServletPath.length() - 1);
+            }
+            DefaultResourceServlet resourceServlet = (DefaultResourceServlet)servlet;
+            TomcatDefaultServlet defaultServlet =
+                new TomcatDefaultServlet(defaultServletPath, resourceServlet.getDocumentRoot());
+            wrapper = new ServletWrapper(defaultServlet);
+
+        } else {
+            wrapper = new ServletWrapper(servlet);
+        }
+        Context context = port.getHost().map(path);
+        wrapper.setName(path);
+        wrapper.addMapping(path);
+        context.addChild(wrapper);
+        context.addServletMapping(path, path);
+        port.getConnector().getMapper().addWrapper("localhost", "", path, wrapper);
+
+        // Initialize the Servlet
+        try {
+            wrapper.initServlet();
+        } catch (ServletException e) {
+            throw new ServletMappingException(e);
+        }
+
+        // Compute the complete URL
+        String host;
+        try {
+            host = InetAddress.getLocalHost().getHostName();
+        } catch (UnknownHostException e) {
+            host = "localhost";
+        }
+        URL addedURL;
+        try {
+            addedURL = new URL(scheme, host, portNumber, path);
+        } catch (MalformedURLException e) {
+            throw new ServletMappingException(e);
+        }
+        logger.info("Added Servlet mapping: " + addedURL);
+    }
+
+    public URL getURLMapping(String suri) throws ServletMappingException {
+        URI uri = URI.create(suri);
+
+        // Get the URI scheme and port
+        String scheme = uri.getScheme();
+        if (scheme == null) {
+            scheme = "http";
+        }
+        int portNumber = uri.getPort();
+        if (portNumber == -1) {
+            portNumber = defaultPortNumber;
+        }
+
+        // Get the host
+        String host;
+        try {
+            host = InetAddress.getLocalHost().getHostName();
+        } catch (UnknownHostException e) {
+            host = "localhost";
+        }
+
+        // Construct the URL
+        String path = uri.getPath();
+
+        if (!path.startsWith("/")) {
+            path = '/' + path;
+        }
+
+        if (!path.startsWith(contextPath)) {
+            path = contextPath + path;
+        }
+        URL url;
+        try {
+            url = new URL(scheme, host, portNumber, path);
+        } catch (MalformedURLException e) {
+            throw new ServletMappingException(e);
+        }
+        return url;
+    }
+
+    public Servlet getServletMapping(String suri) throws ServletMappingException {
+
+        if (suri == null) {
+            return null;
+        }
+
+        URI uri = URI.create(suri);
+
+        // Get the URI port
+        int portNumber = uri.getPort();
+        if (portNumber == -1) {
+            portNumber = defaultPortNumber;
+        }
+
+        // Get the port object associated with the given port number
+        Port port = ports.get(portNumber);
+        if (port == null) {
+            return null;
+        }
+
+        String mapping = uri.getPath();
+
+        if (!mapping.startsWith("/")) {
+            mapping = '/' + mapping;
+        }
+
+        if (!mapping.startsWith(contextPath)) {
+            mapping = contextPath + mapping;
+        }
+
+        final Context context = port.getHost().map(mapping);
+        final MappingData md = new MappingData();
+        final MessageBytes mb = MessageBytes.newInstance();
+        mb.setString(mapping);
+        try {
+            // Allow privileged access to read properties. Requires PropertiesPermission read in
+            // security policy.
+            AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+                public Object run() throws Exception {
+                    context.getMapper().map(mb, md);
+                    return null;
+                }
+            });
+        } catch (Exception e) {
+            return null;
+        }
+        if (md.wrapper instanceof ServletWrapper) {
+            ServletWrapper servletWrapper = (ServletWrapper)md.wrapper;
+            return servletWrapper.getServlet();
+        } else {
+            return null;
+        }
+    }
+
+    public Servlet removeServletMapping(String suri) {
+        URI uri = URI.create(suri);
+
+        // Get the URI port
+        int portNumber = uri.getPort();
+        if (portNumber == -1) {
+            portNumber = defaultPortNumber;
+        }
+
+        // Get the port object associated with the given port number
+        Port port = ports.get(portNumber);
+        if (port == null) {
+            throw new IllegalStateException("No servlet registered at this URI: " + suri);
+        }
+
+        String mapping = uri.getPath();
+
+        if (!mapping.startsWith("/")) {
+            mapping = '/' + mapping;
+        }
+
+        if (!mapping.startsWith(contextPath)) {
+            mapping = contextPath + mapping;
+        }
+
+        final Context context = port.getHost().map(mapping);
+        final MappingData md = new MappingData();
+        final MessageBytes mb = MessageBytes.newInstance();
+        mb.setString(mapping);
+        try {
+            // Allow privileged access to read properties. Requires PropertiesPermission read in
+            // security policy.
+            AccessController.doPrivileged(new PrivilegedExceptionAction<Object>() {
+                public Object run() throws Exception {
+                    context.getMapper().map(mb, md);
+                    return null;
+                }
+            });
+        } catch (Exception e) {
+            return null;
+        }
+        if (md.wrapper instanceof ServletWrapper) {
+            ServletWrapper servletWrapper = (ServletWrapper)md.wrapper;
+
+            port.getConnector().getMapper().removeWrapper("localhost", "", mapping);
+
+            try {
+                context.removeServletMapping(mapping);
+            } catch (NegativeArraySizeException e) {
+                // JIRA TUSCANY-1599
+                // FIXME Looks like a bug in Tomcat when removing the last
+                // Servlet in the list, catch the exception for now as it doesn't
+                // seem harmful, will find a better solution for the next release
+            }
+            context.removeChild(servletWrapper);
+            try {
+                servletWrapper.destroyServlet();
+            } catch (Exception ex) {
+                // Hack to handle destruction of Servlets without Servlet context 
+            }
+
+            logger.info("Removed Servlet mapping: " + suri);
+
+            // Stop the port if there's no servlets on it anymore
+            String[] contextNames = port.getConnector().getMapper().getContextNames();
+            if (contextNames == null || contextNames.length == 0) {
+                try {
+                    port.getConnector().stop();
+                    port.getEngine().stop();
+                    ports.remove(portNumber);
+                } catch (LifecycleException e) {
+                    throw new IllegalStateException(e);
+                }
+            }
+
+            return servletWrapper.getServlet();
+        } else {
+            logger.warning("Trying to Remove servlet mapping: " + mapping + " where mapping is not registered");
+            return null;
+        }
+    }
+
+    public RequestDispatcher getRequestDispatcher(String suri) throws ServletMappingException {
+        //FIXME implement this later
+        return null;
+    }
+
+    public String getContextPath() {
+        return contextPath;
+    }
+
+    /**
+     * A custom connector that uses our WorkScheduler to schedule
+     * worker threads.
+     */
+    private class CustomConnector extends Connector {
+
+        private class CustomHttpProtocolHandler extends Http11Protocol {
+
+            /**
+             * An Executor wrapping our WorkScheduler
+             */
+            private class WorkSchedulerExecutor implements Executor {
+                public void execute(Runnable command) {
+                    workScheduler.scheduleWork(command);
+                }
+            }
+
+            /**
+             * A custom Endpoint that waits for its acceptor thread to
+             * terminate before stopping.
+             */
+            private class CustomEndpoint extends JIoEndpoint {
+                private Thread acceptorThread;
+
+                private class CustomAcceptor extends Acceptor {
+                    CustomAcceptor() {
+                        super();
+                    }
+                }
+
+                @Override
+                public void start() throws Exception {
+                    if (!initialized)
+                        init();
+                    if (!running) {
+                        running = true;
+                        paused = false;
+                        acceptorThread = new Thread(new CustomAcceptor(), getName() + "-Acceptor-" + 0);
+                        acceptorThread.setPriority(threadPriority);
+                        acceptorThread.setDaemon(daemon);
+                        acceptorThread.start();
+                    }
+                }
+
+                @Override
+                public void stop() {
+                    super.stop();
+                    try {
+                        acceptorThread.join();
+                    } catch (InterruptedException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+
+                @Override
+                public int getCurrentThreadsBusy() {
+                    return 0;
+                }
+            }
+
+            CustomHttpProtocolHandler() {
+                endpoint = new CustomEndpoint();
+                endpoint.setExecutor(new WorkSchedulerExecutor());
+            }
+        }
+
+        CustomConnector() throws Exception {
+            protocolHandler = new CustomHttpProtocolHandler();
+        }
+    }
+
+    public void setContextPath(String path) {
+        this.contextPath = path;
+    }
+
+}
diff --git a/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/module/TomcatRuntimeModuleActivator.java b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/module/TomcatRuntimeModuleActivator.java
new file mode 100644
index 0000000000..070dffdce6
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/module/TomcatRuntimeModuleActivator.java
@@ -0,0 +1,69 @@
+/*
+ * 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.http.tomcat.module;
+
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.core.ModuleActivator;
+import org.apache.tuscany.sca.core.UtilityExtensionPoint;
+import org.apache.tuscany.sca.host.http.ServletHostExtensionPoint;
+import org.apache.tuscany.sca.http.tomcat.TomcatServer;
+import org.apache.tuscany.sca.work.WorkScheduler;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class TomcatRuntimeModuleActivator implements ModuleActivator {
+
+    private TomcatServer server;
+
+    public void start(ExtensionPointRegistry extensionPointRegistry) {
+
+        // Register a Tomcat Servlet host
+        ServletHostExtensionPoint servletHosts =
+            extensionPointRegistry.getExtensionPoint(ServletHostExtensionPoint.class);
+        
+        if (servletHosts.getServletHosts().size() < 1) {
+            UtilityExtensionPoint utilities = extensionPointRegistry.getExtensionPoint(UtilityExtensionPoint.class);
+            final WorkScheduler workScheduler = utilities.getUtility(WorkScheduler.class);
+            // Allow privileged access to start MBeans. Requires MBeanPermission in security policy.
+            server = AccessController.doPrivileged(new PrivilegedAction<TomcatServer>() {
+                public TomcatServer run() {
+                    return new TomcatServer(workScheduler);
+                 }
+            });        
+            servletHosts.addServletHost(server);
+        }
+    }
+
+    public void stop(ExtensionPointRegistry registry) {
+        // Allow privileged access to stop MBeans. Requires MBeanPermission in security policy.
+        AccessController.doPrivileged(new PrivilegedAction<Object>() {
+            public Object run() {
+                if (server != null) {
+                    server.stop();
+                }
+                return null;
+            }
+        });            
+    }
+}
diff --git a/sandbox/event/modules/host-tomcat/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator b/sandbox/event/modules/host-tomcat/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator
new file mode 100644
index 0000000000..f0f4e17507
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/main/resources/META-INF/services/org.apache.tuscany.sca.core.ModuleActivator
@@ -0,0 +1,18 @@
+# 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.

+# Implementation class for the ModuleActivator

+org.apache.tuscany.sca.http.tomcat.module.TomcatRuntimeModuleActivator

diff --git a/sandbox/event/modules/host-tomcat/src/test/java/org/apache/tuscany/sca/http/tomcat/TomcatServerTestCase.java b/sandbox/event/modules/host-tomcat/src/test/java/org/apache/tuscany/sca/http/tomcat/TomcatServerTestCase.java
new file mode 100644
index 0000000000..afbec52cd9
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/test/java/org/apache/tuscany/sca/http/tomcat/TomcatServerTestCase.java
@@ -0,0 +1,353 @@
+/*
+ * 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.http.tomcat;
+
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.net.Socket;
+import java.net.URL;
+
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.SSLSession;
+import javax.servlet.ServletConfig;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import junit.framework.TestCase;
+
+import org.apache.tuscany.sca.host.http.DefaultResourceServlet;
+import org.apache.tuscany.sca.work.NotificationListener;
+import org.apache.tuscany.sca.work.WorkScheduler;
+
+/**
+ * @version $Rev$ $Date$
+ */
+public class TomcatServerTestCase extends TestCase {
+
+    private static final String REQUEST1_HEADER =
+        "GET /foo HTTP/1.0\n" + "Host: localhost\n"
+            + "Content-Type: text/xml\n"
+            + "Connection: close\n"
+            + "Content-Length: ";
+    private static final String REQUEST1_CONTENT = "";
+    private static final String REQUEST1 =
+        REQUEST1_HEADER + REQUEST1_CONTENT.getBytes().length + "\n\n" + REQUEST1_CONTENT;
+
+    private static final String REQUEST2_HEADER =
+        "GET /webcontent/test.html HTTP/1.0\n" + "Host: localhost\n"
+            + "Content-Type: text/xml\n"
+            + "Connection: close\n"
+            + "Content-Length: ";
+    private static final String REQUEST2_CONTENT = "";
+    private static final String REQUEST2 =
+        REQUEST2_HEADER + REQUEST2_CONTENT.getBytes().length + "\n\n" + REQUEST2_CONTENT;
+
+    private static final int HTTP_PORT = 8085;
+
+    private WorkScheduler workScheduler = new WorkScheduler() {
+
+        public <T extends Runnable> void scheduleWork(T work) {
+            Thread thread = new Thread(work);
+            thread.start();
+        }
+
+        public <T extends Runnable> void scheduleWork(T work, NotificationListener<T> listener) {
+            scheduleWork(work);
+        }
+
+        public void destroy() {
+        }
+    };      
+
+    /**
+     * Verifies requests are properly routed according to the Servlet mapping
+     */
+    public void testRegisterServletMapping() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        TestServlet servlet = new TestServlet();
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/foo", servlet);
+        Socket client = new Socket("127.0.0.1", HTTP_PORT);
+        OutputStream os = client.getOutputStream();
+        os.write(REQUEST1.getBytes());
+        os.flush();
+        read(client);
+        service.stop();
+        assertTrue(servlet.invoked);
+    }
+    
+    /**
+     * Verifies requests are properly routed according to the Servlet mapping
+     */
+    public void testRegisterServletMappingSSL() throws Exception {
+        System.setProperty("javax.net.ssl.keyStore", "target/test-classes/tuscany.keyStore");
+        System.setProperty("javax.net.ssl.keyStorePassword", "apache");
+        TomcatServer service = new TomcatServer(workScheduler);
+        TestServlet servlet = new TestServlet();
+        try {
+            service.addServletMapping("https://127.0.0.1:" + HTTP_PORT + "/foo", servlet);
+        } finally {
+            System.clearProperty("javax.net.ssl.keyStore");
+            System.clearProperty("javax.net.ssl.keyStorePassword");
+        }
+        System.setProperty("javax.net.ssl.trustStore", "target/test-classes/tuscany.keyStore");
+        System.setProperty("javax.net.ssl.trustStorePassword", "apache");
+        URL url = new URL("https://127.0.0.1:8085/foo");
+        HttpsURLConnection conn = (HttpsURLConnection) url.openConnection();
+        conn.setHostnameVerifier(new HostnameVerifier() {
+            public boolean verify(String hostname, SSLSession session) {
+                return true;
+            }}
+        );
+
+        conn.connect();
+        read(conn.getInputStream());
+        
+        service.stop();
+        assertTrue(servlet.invoked);
+
+    }
+    /**
+     * Verifies that Servlets can be registered with multiple ports
+     */
+    public void testRegisterMultiplePorts() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        TestServlet servlet = new TestServlet();
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/", servlet);
+        TestServlet servlet2 = new TestServlet();
+        service.addServletMapping("http://127.0.0.1:" + (HTTP_PORT + 1) + "/", servlet2);
+        {
+            Socket client = new Socket("127.0.0.1", HTTP_PORT);
+            OutputStream os = client.getOutputStream();
+            os.write(REQUEST1.getBytes());
+            os.flush();
+            read(client);
+        }
+        {
+            Socket client = new Socket("127.0.0.1", HTTP_PORT + 1);
+            OutputStream os = client.getOutputStream();
+            os.write(REQUEST1.getBytes());
+            os.flush();
+            read(client);
+        }
+        
+        service.stop();
+        assertTrue(servlet.invoked);
+        assertTrue(servlet2.invoked);
+    }
+
+    public void testUnregisterMapping() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        TestServlet servlet = new TestServlet();
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/foo", servlet);
+        service.removeServletMapping("http://127.0.0.1:" + HTTP_PORT + "/foo");
+        Socket client = new Socket("127.0.0.1", HTTP_PORT);
+        OutputStream os = client.getOutputStream();
+        os.write(REQUEST1.getBytes());
+        os.flush();
+        read(client);
+        service.stop();
+        assertFalse(servlet.invoked);
+        
+    }
+    
+    public void testRegisterUnregisterMapping() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        TestServlet servlet = new TestServlet();
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/foo", servlet);
+        {
+            Socket client = new Socket("127.0.0.1", HTTP_PORT);
+            OutputStream os = client.getOutputStream();
+            os.write(REQUEST1.getBytes());
+            os.flush();
+            read(client);            
+        }
+        assertTrue(servlet.invoked);
+        service.removeServletMapping("http://127.0.0.1:" + HTTP_PORT + "/foo");
+        {
+            Socket client = new Socket("127.0.0.1", HTTP_PORT);
+            OutputStream os = client.getOutputStream();
+            os.write(REQUEST1.getBytes());
+            os.flush();
+            read(client);            
+        }
+        servlet = new TestServlet();
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/foo", servlet);
+        {
+            Socket client = new Socket("127.0.0.1", HTTP_PORT);
+            OutputStream os = client.getOutputStream();
+            os.write(REQUEST1.getBytes());
+            os.flush();
+            read(client);            
+        }
+        assertTrue(servlet.invoked);
+        service.stop();
+    } 
+
+    public void testRequestSession() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        TestServlet servlet = new TestServlet();
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/foo", servlet);
+        Socket client = new Socket("127.0.0.1", HTTP_PORT);
+        OutputStream os = client.getOutputStream();
+        os.write(REQUEST1.getBytes());
+        os.flush();
+        read(client);
+        service.stop();
+        assertTrue(servlet.invoked);
+        assertNotNull(servlet.sessionId);
+    }
+
+    public void testRestart() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        service.stop();
+        service.stop();
+    }
+
+    public void testNoMappings() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        Exception ex = null;
+        try {
+            Socket client = new Socket("127.0.0.1", HTTP_PORT);
+            OutputStream os = client.getOutputStream();
+            os.write(REQUEST1.getBytes());
+            os.flush();
+        } catch (Exception e) {
+            ex = e;
+        }
+        assertNotNull(ex);
+        service.stop();
+    }
+
+    public void testResourceServlet() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        
+        String documentRoot = getClass().getClassLoader().getResource("content/test.html").toString();
+        documentRoot = documentRoot.substring(0, documentRoot.lastIndexOf('/'));
+        DefaultResourceServlet resourceServlet = new DefaultResourceServlet(documentRoot);
+        TestResourceServlet servlet = new TestResourceServlet(resourceServlet);
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/webcontent/*", servlet);
+        
+        Socket client = new Socket("127.0.0.1", HTTP_PORT);
+        OutputStream os = client.getOutputStream();
+        os.write(REQUEST2.getBytes());
+        os.flush();
+        
+        String document = read(client);
+        assertTrue(document.indexOf("<body><p>hello</body>") != -1);
+        
+        service.stop();
+    }
+
+    public void testDefaultServlet() throws Exception {
+        TomcatServer service = new TomcatServer(workScheduler);
+        
+        String documentRoot = getClass().getClassLoader().getResource("content/test.html").toString();
+        documentRoot = documentRoot.substring(0, documentRoot.lastIndexOf('/'));
+        DefaultResourceServlet resourceServlet = new DefaultResourceServlet(documentRoot);
+        service.addServletMapping("http://127.0.0.1:" + HTTP_PORT + "/webcontent/*", resourceServlet);
+        
+        Socket client = new Socket("127.0.0.1", HTTP_PORT);
+        OutputStream os = client.getOutputStream();
+        os.write(REQUEST2.getBytes());
+        os.flush();
+        
+        String document = read(client);
+        assertTrue(document.indexOf("<body><p>hello</body>") != -1);
+        
+        service.stop();
+    }
+
+    private static String read(Socket socket) throws IOException {
+        InputStream is = socket.getInputStream();
+        return read(is);
+    }
+
+    private static String read(InputStream is) throws IOException {
+        BufferedReader reader = null;
+        try {
+            reader = new BufferedReader(new InputStreamReader(is));
+            StringBuffer sb = new StringBuffer();
+            String str;
+            while ((str = reader.readLine()) != null) {
+                sb.append(str);
+            }
+            return sb.toString();
+        } finally {
+            if (reader != null) {
+                reader.close();
+            }
+        }
+    }
+    private class TestServlet extends HttpServlet {
+        private static final long serialVersionUID = 1L;
+        boolean invoked;
+        String sessionId;
+
+        @Override
+        protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+            invoked = true;
+            sessionId = req.getSession().getId();
+            OutputStream writer = resp.getOutputStream();
+            try {
+                writer.write("result".getBytes());
+            } finally {
+                writer.close();
+            }
+        }
+
+    }
+
+    private class TestResourceServlet extends HttpServlet {
+        private static final long serialVersionUID = 1L;
+        private HttpServlet delegate;
+        
+        public TestResourceServlet(HttpServlet delegate) {
+            this.delegate = delegate;
+        }
+        
+        @Override
+        public void init() throws ServletException {
+            super.init();
+            delegate.init();
+        }
+
+        @Override
+        public void init(ServletConfig config) throws ServletException {
+            super.init();
+            delegate.init(config);
+        }
+        
+        @Override
+        protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
+            delegate.service(req, resp);
+        }
+        
+        @Override
+        public void destroy() {
+            super.destroy();
+            delegate.destroy();
+        }
+    }
+}
diff --git a/sandbox/event/modules/host-tomcat/src/test/resources/content/test.html b/sandbox/event/modules/host-tomcat/src/test/resources/content/test.html
new file mode 100644
index 0000000000..f4b79d7f01
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/test/resources/content/test.html
@@ -0,0 +1,21 @@
+<html>
+<!--
+    * 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.    
+-->
+<body><p>hello</body>
+</html>
\ No newline at end of file
diff --git a/sandbox/event/modules/host-tomcat/src/test/resources/tuscany.keyStore b/sandbox/event/modules/host-tomcat/src/test/resources/tuscany.keyStore
new file mode 100644
index 0000000000..7ea23f7ff4
--- /dev/null
+++ b/sandbox/event/modules/host-tomcat/src/test/resources/tuscany.keyStore