diff options
Diffstat (limited to 'branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat')
4 files changed, 429 insertions, 0 deletions
diff --git a/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/ServletWrapper.java b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/ServletWrapper.java new file mode 100644 index 0000000000..e5dbbc5694 --- /dev/null +++ b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/ServletWrapper.java @@ -0,0 +1,56 @@ +/* + * 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; + } + + public synchronized Servlet loadServlet() { + return servlet; + } + + public Servlet getServlet() { + return servlet; + } + + public void initServlet() throws ServletException { + servlet.init(facade); + } + + public void destroyServlet() { + servlet.destroy(); + } + +} diff --git a/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatDefaultServlet.java b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatDefaultServlet.java new file mode 100644 index 0000000000..e38f9a0dc9 --- /dev/null +++ b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatDefaultServlet.java @@ -0,0 +1,70 @@ +/* + * 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.net.URI; +import java.util.Hashtable; + +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; + +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; + + FileDirContext dirContext = new FileDirContext(); + URI uri = URI.create(this.documentRoot); + 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/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatServer.java b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatServer.java new file mode 100644 index 0000000000..bf794486f2 --- /dev/null +++ b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/TomcatServer.java @@ -0,0 +1,249 @@ +/* + * 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.net.URI; +import java.util.concurrent.Executor; + +import javax.servlet.Servlet; +import javax.servlet.ServletException; + +import org.apache.catalina.Context; +import org.apache.catalina.Lifecycle; +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.http.DefaultResourceServlet; +import org.apache.tuscany.sca.http.ServletHost; +import org.apache.tuscany.sca.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 int DEFAULT_PORT = 8080; + private StandardEngine engine; + private StandardHost host; + private Connector connector; + private WorkScheduler workScheduler; + + /** + * A custom connector that uses our WorkScheduler to schedule + * worker threads. + */ + private class CustomConnector extends Connector { + + private class CustomHttpProtocolHandler extends Http11Protocol { + + /** + * An Executor wrappering 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(); + } + } + + 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(); + } + } + + public void stop() { + super.stop(); + try { + acceptorThread.join(); + } catch (InterruptedException e) { + throw new RuntimeException(e); + } + } + + public int getCurrentThreadsBusy() { + return 0; + } + } + + CustomHttpProtocolHandler() { + endpoint = new CustomEndpoint(); + endpoint.setExecutor(new WorkSchedulerExecutor()); + } + } + + CustomConnector() throws Exception { + protocolHandler = new CustomHttpProtocolHandler(); + } + } + + /** + * Constructs a new embedded Tomcat server. + * + * @param workScheduler the WorkScheduler to use to process requests. + */ + public TomcatServer(WorkScheduler workScheduler) { + this.workScheduler = workScheduler; + } + + public void init() throws ServletMappingException { + + // Create an engine + engine = new StandardEngine(); + engine.setBaseDir(""); + engine.setDefaultHost("localhost"); + + // Create a host + host = new StandardHost(); + host.setAppBase(""); + host.setName("localhost"); + engine.addChild(host); + + // Create the root context + StandardContext context = new StandardContext(); + context.setDocBase(""); + context.setPath(""); + ContextConfig config = new ContextConfig(); + ((Lifecycle)context).addLifecycleListener(config); + host.addChild(context); + } + + public void destroy() throws ServletMappingException { + + // Stop the server + try { + if (connector !=null) { + connector.stop(); + engine.stop(); + } + } catch (Exception e) { + throw new ServletMappingException(e); + } + } + + public void addServletMapping(String strURI, Servlet servlet) { + URI uri = URI.create(strURI); + + int port = uri.getPort(); + if (port == -1) { + port = DEFAULT_PORT; + } + // Install a default HTTP connector + if (connector == null) { + //TODO support multiple connectors on different ports + try { + engine.start(); + connector = new CustomConnector(); + connector.setPort(port); + connector.setContainer(engine); + connector.initialize(); + connector.start(); + } catch (Exception e) { + throw new RuntimeException(e); + } + } + + // Register the servlet mapping + ServletWrapper wrapper; + if (servlet instanceof DefaultResourceServlet) { + + // Optimize the handling of resource requests, use the Tomcat default servlet + // instead of our default resource servlet + String servletPath = uri.getPath(); + if (servletPath.endsWith("*")) { + servletPath = servletPath.substring(0, servletPath.length()-1); + } + if (servletPath.endsWith("/")) { + servletPath = servletPath.substring(0, servletPath.length()-1); + } + DefaultResourceServlet resourceServlet = (DefaultResourceServlet)servlet; + TomcatDefaultServlet defaultServlet = new TomcatDefaultServlet(servletPath, resourceServlet.getDocumentRoot()); + wrapper = new ServletWrapper(defaultServlet); + + } else { + wrapper = new ServletWrapper(servlet); + } + String mapping = uri.getPath(); + Context context = host.map(mapping); + wrapper.setName(mapping); + wrapper.addMapping(mapping); + context.addChild(wrapper); + context.addServletMapping(mapping, mapping); + connector.getMapper().addWrapper("localhost", "", mapping, wrapper); + + // Initialize the servlet + try { + wrapper.initServlet(); + } catch (ServletException e) { + throw new ServletMappingException(e); + } + } + + public Servlet removeServletMapping(String uri) { + String mapping = URI.create(uri).getPath(); + Context context = host.map(mapping); + MappingData md = new MappingData(); + MessageBytes mb = MessageBytes.newInstance(); + mb.setString(mapping); + try { + context.getMapper().map(mb, md); + } catch (Exception e) { + return null; + } + if (md.wrapper instanceof ServletWrapper) { + ServletWrapper servletWrapper = (ServletWrapper)md.wrapper; + context.removeServletMapping(mapping); + context.removeChild(servletWrapper); + servletWrapper.destroyServlet(); + return servletWrapper.getServlet(); + } else { + return null; + } + } + +} diff --git a/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/module/TomcatRuntimeModuleActivator.java b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/module/TomcatRuntimeModuleActivator.java new file mode 100644 index 0000000000..3d59813608 --- /dev/null +++ b/branches/sca-java-0.91/modules/http-tomcat/src/main/java/org/apache/tuscany/sca/http/tomcat/module/TomcatRuntimeModuleActivator.java @@ -0,0 +1,54 @@ +/* + * 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 org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.core.ModuleActivator; +import org.apache.tuscany.sca.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 Object[] getExtensionPoints() { + return null; + } + + public void start(ExtensionPointRegistry extensionPointRegistry) { + + // Register a Tomcat servlet host + ServletHostExtensionPoint servletHosts = + extensionPointRegistry.getExtensionPoint(ServletHostExtensionPoint.class); + WorkScheduler workScheduler = extensionPointRegistry.getExtensionPoint(WorkScheduler.class); + server = new TomcatServer(workScheduler); + server.init(); + servletHosts.addServletHost(server); + } + + public void stop(ExtensionPointRegistry registry) { + server.destroy(); + } + +} |