From 5767541fd5d52fcd7fd04d361e2743ecf2e0a8f6 Mon Sep 17 00:00:00 2001 From: slaws Date: Tue, 18 Nov 2008 10:16:48 +0000 Subject: Equinox branch merge - create a contrib directory and start moving those modules that are not obviously junk but which are not in the branch here. All of the modules that are not required to bring up the calculator sample will go here after the merge but which it's going on its technically easier to keep the modules that match between trunk and branch in the same place. git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@718546 13f79535-47bb-0310-9956-ffa450edef68 --- java/sca/contrib/modules/binding-dwr/LICENSE | 205 +++++++++++++++++ java/sca/contrib/modules/binding-dwr/NOTICE | 6 + java/sca/contrib/modules/binding-dwr/pom.xml | 95 ++++++++ .../apache/tuscany/sca/binding/dwr/DWRBinding.java | 31 +++ .../sca/binding/dwr/DWRBindingActivator.java | 56 +++++ .../apache/tuscany/sca/binding/dwr/DWRInvoker.java | 93 ++++++++ .../tuscany/sca/binding/dwr/DWRInvokerFactory.java | 67 ++++++ .../apache/tuscany/sca/binding/dwr/DWRService.java | 81 +++++++ .../apache/tuscany/sca/binding/dwr/DWRServlet.java | 247 +++++++++++++++++++++ ...e.tuscany.sca.extension.helper.BindingActivator | 19 ++ java/sca/modules/binding-dwr/LICENSE | 205 ----------------- java/sca/modules/binding-dwr/NOTICE | 6 - java/sca/modules/binding-dwr/pom.xml | 95 -------- .../apache/tuscany/sca/binding/dwr/DWRBinding.java | 31 --- .../sca/binding/dwr/DWRBindingActivator.java | 56 ----- .../apache/tuscany/sca/binding/dwr/DWRInvoker.java | 93 -------- .../tuscany/sca/binding/dwr/DWRInvokerFactory.java | 67 ------ .../apache/tuscany/sca/binding/dwr/DWRService.java | 81 ------- .../apache/tuscany/sca/binding/dwr/DWRServlet.java | 247 --------------------- ...e.tuscany.sca.extension.helper.BindingActivator | 19 -- 20 files changed, 900 insertions(+), 900 deletions(-) create mode 100644 java/sca/contrib/modules/binding-dwr/LICENSE create mode 100644 java/sca/contrib/modules/binding-dwr/NOTICE create mode 100644 java/sca/contrib/modules/binding-dwr/pom.xml create mode 100644 java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java create mode 100644 java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.java create mode 100644 java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java create mode 100644 java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java create mode 100644 java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java create mode 100644 java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java create mode 100644 java/sca/contrib/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator delete mode 100644 java/sca/modules/binding-dwr/LICENSE delete mode 100644 java/sca/modules/binding-dwr/NOTICE delete mode 100644 java/sca/modules/binding-dwr/pom.xml delete mode 100644 java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java delete mode 100644 java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.java delete mode 100644 java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java delete mode 100644 java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java delete mode 100644 java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java delete mode 100644 java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java delete mode 100644 java/sca/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator (limited to 'java/sca') diff --git a/java/sca/contrib/modules/binding-dwr/LICENSE b/java/sca/contrib/modules/binding-dwr/LICENSE new file mode 100644 index 0000000000..8aa906c321 --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/LICENSE @@ -0,0 +1,205 @@ + + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + + TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + + 1. 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We also recommend that a + file or class name and description of purpose be included on the + same "printed page" as the copyright notice for easier + identification within third-party archives. + + Copyright [yyyy] [name of copyright owner] + + Licensed 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. + + + diff --git a/java/sca/contrib/modules/binding-dwr/NOTICE b/java/sca/contrib/modules/binding-dwr/NOTICE new file mode 100644 index 0000000000..fdfa0e9faa --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/NOTICE @@ -0,0 +1,6 @@ +${pom.name} +Copyright (c) 2005 - 2008 The Apache Software Foundation + +This product includes software developed by +The Apache Software Foundation (http://www.apache.org/). + diff --git a/java/sca/contrib/modules/binding-dwr/pom.xml b/java/sca/contrib/modules/binding-dwr/pom.xml new file mode 100644 index 0000000000..19f98a4c23 --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/pom.xml @@ -0,0 +1,95 @@ + + + + + 4.0.0 + + org.apache.tuscany.sca + tuscany-modules + 2.0-SNAPSHOT + ../pom.xml + + + tuscany-binding-dwr + Apache Tuscany SCA AJAX DWR Binding Extension + + + + + org.apache.tuscany.sca + tuscany-extension-helper + 2.0-SNAPSHOT + + + + org.apache.tuscany.sca + tuscany-host-http + 2.0-SNAPSHOT + + + + org.directwebremoting + dwr + 2.0.1 + + + + javax.servlet + servlet-api + 2.4 + provided + + + + junit + junit + 4.5 + test + + + + org.easymock + easymock + 2.2 + test + + + + + + + + + org.apache.felix + maven-bundle-plugin + + + + ${tuscany.version} + org.apache.tuscany.sca.binding.dwr + ${pom.name} + org.apache.tuscany.sca.binding.dwr* + + + + + + + diff --git a/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java new file mode 100644 index 0000000000..ae5cf327ab --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java @@ -0,0 +1,31 @@ +/* + * 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.binding.dwr; + +/** + * The runtime representation of the SCDL + * + * @version $Rev$ $Date$ + */ +public class DWRBinding { + + // Empty as doesn't use any additional attributes or elements (yet). + +} diff --git a/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.java b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.java new file mode 100644 index 0000000000..d14751f235 --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.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.binding.dwr; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.extension.helper.BindingActivator; +import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; +import org.apache.tuscany.sca.extension.helper.InvokerFactory; +import org.apache.tuscany.sca.host.http.ServletHost; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; + +/** + * The Binding Activator for the DWR Binding. + * + * @version $Rev$ $Date$ + */ +public class DWRBindingActivator implements BindingActivator{ + + private ServletHost servletHost; + + public DWRBindingActivator(ServletHost servletHost) { + this.servletHost = servletHost; + } + + public Class getBindingClass() { + return DWRBinding.class; + } + + public InvokerFactory createInvokerFactory(RuntimeComponent rc, RuntimeComponentReference rcr, Binding b, DWRBinding ab) { + return new DWRInvokerFactory(rc, rcr, b, ab, servletHost); + } + + public ComponentLifecycle createService(RuntimeComponent rc, RuntimeComponentService rcs, Binding b, DWRBinding ab) { + return new DWRService(rc, rcs, b, ab, servletHost); + } + +} diff --git a/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java new file mode 100644 index 0000000000..24e6dbbcd4 --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java @@ -0,0 +1,93 @@ +/* + * 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.binding.dwr; + +import java.util.Collection; + +import org.apache.tuscany.sca.core.invocation.MessageImpl; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.invocation.Message; +import org.directwebremoting.ScriptBuffer; +import org.directwebremoting.WebContext; +import org.directwebremoting.WebContextFactory; +import org.directwebremoting.proxy.dwr.Util; + +/** + * The invoker for a DWR Binding. + * + * @version $Rev$ $Date$ + */ +public class DWRInvoker implements Invoker { + + private String referenceFunction; + + public DWRInvoker(String referenceName, Operation operation) { + this.referenceFunction = referenceName + "." + operation.getName(); + } + + public Message invoke(Message requestMsg) { + + invoke((Object[])requestMsg.getBody()); + + // DWR references can not return anything + return new MessageImpl(); + } + + public void invoke(Object[] args) { + + // TODO: this only works if its the same thread as request + WebContext wctx = WebContextFactory.get(); + String currentPage = wctx.getCurrentPage(); + + // Get a DWR Util proxy for all the browsers on the current page: + Collection sessions = wctx.getScriptSessionsByPage(currentPage); + Util utilAll = new Util(sessions); + + ScriptBuffer referenceInvoke = getInvokeFragment(args, wctx); + + // add the reference call to the Util proxy which will cause DWR to + // asynchronously send it to be run on each active browser client + utilAll.addScript(referenceInvoke); + } + + /** + * Creates a fragment of JavaScript code to invoke the reference function + * Eg: ".(arg1, arg2,...);" + */ + protected ScriptBuffer getInvokeFragment(Object[] args, WebContext wctx) { + + ScriptBuffer sb = new ScriptBuffer(); + sb.appendScript(referenceFunction); + sb.appendScript("("); + if (args != null) { + for (int i = 0; i < args.length; i++) { + sb.appendData(args[i]); + if (i < (args.length - 1)) { + sb.appendScript(", "); + } + } + } + sb.appendScript(");"); + + return sb; + } + +} diff --git a/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java new file mode 100644 index 0000000000..1d073c9ecf --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java @@ -0,0 +1,67 @@ +/* + * 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.binding.dwr; + +import static org.apache.tuscany.sca.binding.dwr.DWRService.SERVLET_PATH; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; +import org.apache.tuscany.sca.extension.helper.InvokerFactory; +import org.apache.tuscany.sca.host.http.ServletHost; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.invocation.Invoker; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentReference; + +/** + * InvokerFactory for the DWRBinding. + * + * @version $Rev$ $Date$ + */ +public class DWRInvokerFactory implements InvokerFactory, ComponentLifecycle { + + private Binding binding; + private ServletHost servletHost; + + public DWRInvokerFactory(RuntimeComponent rc, RuntimeComponentReference rcr, Binding b, DWRBinding ab, ServletHost servletHost) { + this.binding = b; + this.servletHost = servletHost; + } + + public Invoker createInvoker(Operation operation) { + return new DWRInvoker(binding.getName(), operation); + } + + public void start() { + + DWRServlet servlet = (DWRServlet) servletHost.getServletMapping(SERVLET_PATH); + if (servlet == null) { + servlet = new DWRServlet(); + servletHost.addServletMapping(SERVLET_PATH, servlet); + } + + servlet.addReference(binding.getName()); + } + + public void stop() { + servletHost.removeServletMapping(SERVLET_PATH); + } + +} diff --git a/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java new file mode 100644 index 0000000000..7d5a7f1677 --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java @@ -0,0 +1,81 @@ +/* + * 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.binding.dwr; + +import java.lang.reflect.InvocationHandler; +import java.lang.reflect.Method; +import java.lang.reflect.Proxy; + +import org.apache.tuscany.sca.assembly.Binding; +import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; +import org.apache.tuscany.sca.host.http.ServletHost; +import org.apache.tuscany.sca.interfacedef.Operation; +import org.apache.tuscany.sca.interfacedef.java.JavaInterface; +import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeComponentService; +import org.apache.tuscany.sca.runtime.RuntimeWire; + +/** + * DWR Service. + * + * @version $Rev$ $Date$ + */ +public class DWRService implements ComponentLifecycle { + + private RuntimeComponent rc; + private RuntimeComponentService rcs; + private Binding binding; + private ServletHost servletHost; + + static final String SERVLET_PATH = "/SCADomain/*"; + + public DWRService(RuntimeComponent rc, RuntimeComponentService rcs, Binding binding, DWRBinding ab, ServletHost servletHost) { + this.rc = rc; + this.rcs = rcs; + this.binding = binding; + this.servletHost = servletHost; + } + + public void start() { + + DWRServlet servlet = (DWRServlet) servletHost.getServletMapping(SERVLET_PATH); + if (servlet == null) { + servlet = new DWRServlet(); + servletHost.addServletMapping(SERVLET_PATH, servlet); + } + + // Create a Java proxy to the target service + Class type = ((JavaInterface)rcs.getInterfaceContract().getInterface()).getJavaClass(); + Object proxy = Proxy.newProxyInstance(type.getClassLoader(), new Class[]{type}, new InvocationHandler() { + public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { + RuntimeWire wire = rcs.getRuntimeWire(binding); + Operation op = JavaInterfaceUtil.findOperation(method, rcs.getInterfaceContract().getInterface().getOperations()); + return wire.invoke(op, args); + }}); + + servlet.addService(binding.getName(), type, proxy); + } + + public void stop() { + servletHost.removeServletMapping(SERVLET_PATH); + } + +} diff --git a/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java new file mode 100644 index 0000000000..3a2471d8f3 --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java @@ -0,0 +1,247 @@ +/* + * 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.binding.dwr; + +import java.io.IOException; +import java.io.PrintWriter; +import java.util.ArrayList; +import java.util.Arrays; +import java.util.Collection; +import java.util.Collections; +import java.util.Enumeration; +import java.util.HashMap; +import java.util.List; +import java.util.Map; + +import javax.servlet.ServletConfig; +import javax.servlet.ServletContext; +import javax.servlet.ServletException; +import javax.servlet.ServletRequest; +import javax.servlet.ServletResponse; +import javax.servlet.http.HttpServletRequest; +import javax.servlet.http.HttpServletResponse; + +import org.directwebremoting.Container; +import org.directwebremoting.create.AbstractCreator; +import org.directwebremoting.extend.CreatorManager; +import org.directwebremoting.extend.Handler; +import org.directwebremoting.extend.Remoter; +import org.directwebremoting.servlet.DwrServlet; +import org.directwebremoting.servlet.EngineHandler; +import org.directwebremoting.servlet.PathConstants; +import org.directwebremoting.servlet.UrlProcessor; + +/** + * Tuscany customized DWR Servlet to implement support for the DWR binding + * + * Handles requests for SCA services and references that use , + * and also the HTTP GET for the Tuscany DWR system script "scaDomain.js" + * + * @version $Rev$ $Date$ + */ +public class DWRServlet extends DwrServlet { + private static final long serialVersionUID = 1L; + + private transient Map services; + private transient List referenceNames; + private transient boolean initialized; + private transient Map initParams; + + private static final String SCADOMAIN_SCRIPT_PATH = "/scaDomain.js"; + + public DWRServlet() { + this.services = new HashMap(); + this.referenceNames = new ArrayList(); + + this.initParams = new HashMap(); + // maybe use attributes to define the init params + initParams.put("activeReverseAjaxEnabled", "true"); + } + + @Override + public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException { + super.service(req, res); + } + + /** + * Initialize the Servlet + * There is a single instance of this Servlet which is registered + * for multiple path mappings, but the init should only run once. + */ + @Override + public void init(ServletConfig servletConfig) throws ServletException { + if (!initialized) { + super.init(patchConfig(servletConfig)); + addScriptHandler(); + initServices(); + initialized = true; + } + } + + /** + * Add in the handler to process the HTTP get for /sca/scaDomain.js + * + * This wrappers the DWR Engine handler which returns the DWR engine.js script, + * this wrappers that handler so as to add Tuscany specific header and footer code + * to the DWR engine.js to define the Tuscany SCADomain control functions and + * functions for each SCA service and reference that use . + */ + private void addScriptHandler() { + + UrlProcessor urlProcessor = (UrlProcessor)getContainer().getBean(UrlProcessor.class.getName()); + + final EngineHandler engineHandler = + (EngineHandler)getContainer().getBean(PathConstants.URL_PREFIX + "/engine.js"); + + final Handler scaDomainScriptHandler = new Handler() { + public void handle(HttpServletRequest request, HttpServletResponse response) throws IOException { + PrintWriter out = response.getWriter(); + out.println("/** Apache Tuscany scaDomain.js Header */"); + + engineHandler.handle(request, response); + + tuscanyFooter(request, out); + } + + }; + + // add the scaDomainScriptHandler to the urlProcessor + // bit of a hack, there's probably cleaner way to get it registered + urlProcessor.afterContainerSetup(new Container() { + public Object getBean(String name) { + return scaDomainScriptHandler; + } + public Collection getBeanNames() { + return Arrays.asList(new String[] {PathConstants.URL_PREFIX + SCADOMAIN_SCRIPT_PATH}); + } + }); + } + + /** + * Adds the JavaScript defining SCADomain, its control functions, + * and functions for all the available SCA services and references. + */ + private void tuscanyFooter(HttpServletRequest request, PrintWriter out) { + out.println("/** Apache Tuscany scaDomain.js Footer */"); + out.println(); + out.println("function scaDomain() { }"); + out.println(); + out.println("// SCA services"); + + // Use the DWR remoter to generate the JavaScipt function for each SCA service + Remoter remoter = (Remoter)getContainer().getBean(Remoter.class.getName()); + + String path = request.getContextPath() + request.getServletPath(); + + for (String serviceName : services.keySet()) { + String serviceScript = remoter.generateInterfaceScript(serviceName, path); + out.println(serviceScript); + } + + if (referenceNames.size() > 0) { + + out.println("// SCA reverse ajax control functions"); + out.println(); + out.println("scaDomain.open = function() { dwr.engine.setActiveReverseAjax(true); };"); + out.println("scaDomain.close = function() { dwr.engine.setActiveReverseAjax(false); };"); + + out.println(); + out.println("// SCA references"); + out.println(); + + // the JavaScript function for SCA references has an + // empty impl as it uses DWR severside "push" + for (String referenceName : referenceNames) { + out.println("function " + referenceName + "() { }"); + } + } + + out.println(); + out.println("/** End of Apache Tuscany scaDomain.js */"); + out.println(); + } + + /** + * Add an SCA reference to be added to the DWR runtime + */ + public void addReference(String name) { + referenceNames.add(name); + } + + /** + * Add an SCA service to be added to the DWR runtime + */ + public void addService(String name, final Class type, final Object instance) { + ServiceHolder holder = new ServiceHolder(); + holder.name = name; + holder.type = type; + holder.instance = instance; + services.put(name, holder); + } + + /** + * Defines each SCA service proxy instance to DWR + */ + private void initServices() { + CreatorManager creatorManager = (CreatorManager)getContainer().getBean(CreatorManager.class.getName()); + + for (final ServiceHolder holder : services.values()) { + creatorManager.addCreator(holder.name, new AbstractCreator() { + public Class getType() { + return holder.type; + } + + public Object getInstance() throws InstantiationException { + return holder.instance; + } + }); + } + } + + // utility class to aid passing around services + private class ServiceHolder { + String name; + Class type; + Object instance; + } + + /** + * Patch the ServletConfig to enable setting init params for DWR + * and so DWR can't see the Tuscany servlet's init params. + */ + private ServletConfig patchConfig(final ServletConfig servletConfig) { + ServletConfig patchedContext = new ServletConfig() { + public String getInitParameter(String name) { + return initParams.get(name); + } + public Enumeration getInitParameterNames() { + return Collections.enumeration(initParams.keySet()); + } + public ServletContext getServletContext() { + return servletConfig.getServletContext(); + } + public String getServletName() { + return servletConfig.getServletName(); + } + }; + return patchedContext; + } + +} diff --git a/java/sca/contrib/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator b/java/sca/contrib/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator new file mode 100644 index 0000000000..1a9f91fab2 --- /dev/null +++ b/java/sca/contrib/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator @@ -0,0 +1,19 @@ +# 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 ExtensionActivator +org.apache.tuscany.sca.binding.dwr.DWRBindingActivator + diff --git a/java/sca/modules/binding-dwr/LICENSE b/java/sca/modules/binding-dwr/LICENSE deleted file mode 100644 index 8aa906c321..0000000000 --- a/java/sca/modules/binding-dwr/LICENSE +++ /dev/null @@ -1,205 +0,0 @@ - - Apache License - Version 2.0, January 2004 - http://www.apache.org/licenses/ - - TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION - - 1. 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If You - institute patent litigation against any entity (including a - cross-claim or counterclaim in a lawsuit) alleging that the Work - or a Contribution incorporated within the Work constitutes direct - or contributory patent infringement, then any patent licenses - granted to You under this License for that Work shall terminate - as of the date such litigation is filed. - - 4. Redistribution. You may reproduce and distribute copies of the - Work or Derivative Works thereof in any medium, with or without - modifications, and in Source or Object form, provided that You - meet the following conditions: - - (a) You must give any other recipients of the Work or - Derivative Works a copy of this License; and - - (b) You must cause any modified files to carry prominent notices - stating that You changed the files; and - - (c) You must retain, in the Source form of any Derivative Works - that You distribute, all copyright, patent, trademark, and - attribution notices from the Source form of the Work, - excluding those notices that do not pertain to any part of - the Derivative Works; and - - (d) If the Work includes a "NOTICE" text file as part of its - distribution, then any Derivative Works that You distribute must - include a readable copy of the attribution notices contained - within such NOTICE file, excluding those notices that do not - pertain to any part of the Derivative Works, in at least one - of the following places: within a NOTICE text file distributed - as part of the Derivative Works; within the Source form or - documentation, if provided along with the Derivative Works; or, - within a display generated by the Derivative Works, if and - wherever such third-party notices normally appear. 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We also recommend that a - file or class name and description of purpose be included on the - same "printed page" as the copyright notice for easier - identification within third-party archives. - - Copyright [yyyy] [name of copyright owner] - - Licensed 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. - - - diff --git a/java/sca/modules/binding-dwr/NOTICE b/java/sca/modules/binding-dwr/NOTICE deleted file mode 100644 index fdfa0e9faa..0000000000 --- a/java/sca/modules/binding-dwr/NOTICE +++ /dev/null @@ -1,6 +0,0 @@ -${pom.name} -Copyright (c) 2005 - 2008 The Apache Software Foundation - -This product includes software developed by -The Apache Software Foundation (http://www.apache.org/). - diff --git a/java/sca/modules/binding-dwr/pom.xml b/java/sca/modules/binding-dwr/pom.xml deleted file mode 100644 index 19f98a4c23..0000000000 --- a/java/sca/modules/binding-dwr/pom.xml +++ /dev/null @@ -1,95 +0,0 @@ - - - - - 4.0.0 - - org.apache.tuscany.sca - tuscany-modules - 2.0-SNAPSHOT - ../pom.xml - - - tuscany-binding-dwr - Apache Tuscany SCA AJAX DWR Binding Extension - - - - - org.apache.tuscany.sca - tuscany-extension-helper - 2.0-SNAPSHOT - - - - org.apache.tuscany.sca - tuscany-host-http - 2.0-SNAPSHOT - - - - org.directwebremoting - dwr - 2.0.1 - - - - javax.servlet - servlet-api - 2.4 - provided - - - - junit - junit - 4.5 - test - - - - org.easymock - easymock - 2.2 - test - - - - - - - - - org.apache.felix - maven-bundle-plugin - - - - ${tuscany.version} - org.apache.tuscany.sca.binding.dwr - ${pom.name} - org.apache.tuscany.sca.binding.dwr* - - - - - - - diff --git a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java b/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java deleted file mode 100644 index ae5cf327ab..0000000000 --- a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBinding.java +++ /dev/null @@ -1,31 +0,0 @@ -/* - * 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.binding.dwr; - -/** - * The runtime representation of the SCDL - * - * @version $Rev$ $Date$ - */ -public class DWRBinding { - - // Empty as doesn't use any additional attributes or elements (yet). - -} diff --git a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.java b/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.java deleted file mode 100644 index d14751f235..0000000000 --- a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRBindingActivator.java +++ /dev/null @@ -1,56 +0,0 @@ -/* - * 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.binding.dwr; - -import org.apache.tuscany.sca.assembly.Binding; -import org.apache.tuscany.sca.extension.helper.BindingActivator; -import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; -import org.apache.tuscany.sca.extension.helper.InvokerFactory; -import org.apache.tuscany.sca.host.http.ServletHost; -import org.apache.tuscany.sca.runtime.RuntimeComponent; -import org.apache.tuscany.sca.runtime.RuntimeComponentReference; -import org.apache.tuscany.sca.runtime.RuntimeComponentService; - -/** - * The Binding Activator for the DWR Binding. - * - * @version $Rev$ $Date$ - */ -public class DWRBindingActivator implements BindingActivator{ - - private ServletHost servletHost; - - public DWRBindingActivator(ServletHost servletHost) { - this.servletHost = servletHost; - } - - public Class getBindingClass() { - return DWRBinding.class; - } - - public InvokerFactory createInvokerFactory(RuntimeComponent rc, RuntimeComponentReference rcr, Binding b, DWRBinding ab) { - return new DWRInvokerFactory(rc, rcr, b, ab, servletHost); - } - - public ComponentLifecycle createService(RuntimeComponent rc, RuntimeComponentService rcs, Binding b, DWRBinding ab) { - return new DWRService(rc, rcs, b, ab, servletHost); - } - -} diff --git a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java b/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java deleted file mode 100644 index 24e6dbbcd4..0000000000 --- a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvoker.java +++ /dev/null @@ -1,93 +0,0 @@ -/* - * 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.binding.dwr; - -import java.util.Collection; - -import org.apache.tuscany.sca.core.invocation.MessageImpl; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.invocation.Message; -import org.directwebremoting.ScriptBuffer; -import org.directwebremoting.WebContext; -import org.directwebremoting.WebContextFactory; -import org.directwebremoting.proxy.dwr.Util; - -/** - * The invoker for a DWR Binding. - * - * @version $Rev$ $Date$ - */ -public class DWRInvoker implements Invoker { - - private String referenceFunction; - - public DWRInvoker(String referenceName, Operation operation) { - this.referenceFunction = referenceName + "." + operation.getName(); - } - - public Message invoke(Message requestMsg) { - - invoke((Object[])requestMsg.getBody()); - - // DWR references can not return anything - return new MessageImpl(); - } - - public void invoke(Object[] args) { - - // TODO: this only works if its the same thread as request - WebContext wctx = WebContextFactory.get(); - String currentPage = wctx.getCurrentPage(); - - // Get a DWR Util proxy for all the browsers on the current page: - Collection sessions = wctx.getScriptSessionsByPage(currentPage); - Util utilAll = new Util(sessions); - - ScriptBuffer referenceInvoke = getInvokeFragment(args, wctx); - - // add the reference call to the Util proxy which will cause DWR to - // asynchronously send it to be run on each active browser client - utilAll.addScript(referenceInvoke); - } - - /** - * Creates a fragment of JavaScript code to invoke the reference function - * Eg: ".(arg1, arg2,...);" - */ - protected ScriptBuffer getInvokeFragment(Object[] args, WebContext wctx) { - - ScriptBuffer sb = new ScriptBuffer(); - sb.appendScript(referenceFunction); - sb.appendScript("("); - if (args != null) { - for (int i = 0; i < args.length; i++) { - sb.appendData(args[i]); - if (i < (args.length - 1)) { - sb.appendScript(", "); - } - } - } - sb.appendScript(");"); - - return sb; - } - -} diff --git a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java b/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java deleted file mode 100644 index 1d073c9ecf..0000000000 --- a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRInvokerFactory.java +++ /dev/null @@ -1,67 +0,0 @@ -/* - * 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.binding.dwr; - -import static org.apache.tuscany.sca.binding.dwr.DWRService.SERVLET_PATH; - -import org.apache.tuscany.sca.assembly.Binding; -import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; -import org.apache.tuscany.sca.extension.helper.InvokerFactory; -import org.apache.tuscany.sca.host.http.ServletHost; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.invocation.Invoker; -import org.apache.tuscany.sca.runtime.RuntimeComponent; -import org.apache.tuscany.sca.runtime.RuntimeComponentReference; - -/** - * InvokerFactory for the DWRBinding. - * - * @version $Rev$ $Date$ - */ -public class DWRInvokerFactory implements InvokerFactory, ComponentLifecycle { - - private Binding binding; - private ServletHost servletHost; - - public DWRInvokerFactory(RuntimeComponent rc, RuntimeComponentReference rcr, Binding b, DWRBinding ab, ServletHost servletHost) { - this.binding = b; - this.servletHost = servletHost; - } - - public Invoker createInvoker(Operation operation) { - return new DWRInvoker(binding.getName(), operation); - } - - public void start() { - - DWRServlet servlet = (DWRServlet) servletHost.getServletMapping(SERVLET_PATH); - if (servlet == null) { - servlet = new DWRServlet(); - servletHost.addServletMapping(SERVLET_PATH, servlet); - } - - servlet.addReference(binding.getName()); - } - - public void stop() { - servletHost.removeServletMapping(SERVLET_PATH); - } - -} diff --git a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java b/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java deleted file mode 100644 index 7d5a7f1677..0000000000 --- a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRService.java +++ /dev/null @@ -1,81 +0,0 @@ -/* - * 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.binding.dwr; - -import java.lang.reflect.InvocationHandler; -import java.lang.reflect.Method; -import java.lang.reflect.Proxy; - -import org.apache.tuscany.sca.assembly.Binding; -import org.apache.tuscany.sca.extension.helper.ComponentLifecycle; -import org.apache.tuscany.sca.host.http.ServletHost; -import org.apache.tuscany.sca.interfacedef.Operation; -import org.apache.tuscany.sca.interfacedef.java.JavaInterface; -import org.apache.tuscany.sca.interfacedef.java.impl.JavaInterfaceUtil; -import org.apache.tuscany.sca.runtime.RuntimeComponent; -import org.apache.tuscany.sca.runtime.RuntimeComponentService; -import org.apache.tuscany.sca.runtime.RuntimeWire; - -/** - * DWR Service. - * - * @version $Rev$ $Date$ - */ -public class DWRService implements ComponentLifecycle { - - private RuntimeComponent rc; - private RuntimeComponentService rcs; - private Binding binding; - private ServletHost servletHost; - - static final String SERVLET_PATH = "/SCADomain/*"; - - public DWRService(RuntimeComponent rc, RuntimeComponentService rcs, Binding binding, DWRBinding ab, ServletHost servletHost) { - this.rc = rc; - this.rcs = rcs; - this.binding = binding; - this.servletHost = servletHost; - } - - public void start() { - - DWRServlet servlet = (DWRServlet) servletHost.getServletMapping(SERVLET_PATH); - if (servlet == null) { - servlet = new DWRServlet(); - servletHost.addServletMapping(SERVLET_PATH, servlet); - } - - // Create a Java proxy to the target service - Class type = ((JavaInterface)rcs.getInterfaceContract().getInterface()).getJavaClass(); - Object proxy = Proxy.newProxyInstance(type.getClassLoader(), new Class[]{type}, new InvocationHandler() { - public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { - RuntimeWire wire = rcs.getRuntimeWire(binding); - Operation op = JavaInterfaceUtil.findOperation(method, rcs.getInterfaceContract().getInterface().getOperations()); - return wire.invoke(op, args); - }}); - - servlet.addService(binding.getName(), type, proxy); - } - - public void stop() { - servletHost.removeServletMapping(SERVLET_PATH); - } - -} diff --git a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java b/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java deleted file mode 100644 index 3a2471d8f3..0000000000 --- a/java/sca/modules/binding-dwr/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java +++ /dev/null @@ -1,247 +0,0 @@ -/* - * 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.binding.dwr; - -import java.io.IOException; -import java.io.PrintWriter; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Collection; -import java.util.Collections; -import java.util.Enumeration; -import java.util.HashMap; -import java.util.List; -import java.util.Map; - -import javax.servlet.ServletConfig; -import javax.servlet.ServletContext; -import javax.servlet.ServletException; -import javax.servlet.ServletRequest; -import javax.servlet.ServletResponse; -import javax.servlet.http.HttpServletRequest; -import javax.servlet.http.HttpServletResponse; - -import org.directwebremoting.Container; -import org.directwebremoting.create.AbstractCreator; -import org.directwebremoting.extend.CreatorManager; -import org.directwebremoting.extend.Handler; -import org.directwebremoting.extend.Remoter; -import org.directwebremoting.servlet.DwrServlet; -import org.directwebremoting.servlet.EngineHandler; -import org.directwebremoting.servlet.PathConstants; -import org.directwebremoting.servlet.UrlProcessor; - -/** - * Tuscany customized DWR Servlet to implement support for the DWR binding - * - * Handles requests for SCA services and references that use , - * and also the HTTP GET for the Tuscany DWR system script "scaDomain.js" - * - * @version $Rev$ $Date$ - */ -public class DWRServlet extends DwrServlet { - private static final long serialVersionUID = 1L; - - private transient Map services; - private transient List referenceNames; - private transient boolean initialized; - private transient Map initParams; - - private static final String SCADOMAIN_SCRIPT_PATH = "/scaDomain.js"; - - public DWRServlet() { - this.services = new HashMap(); - this.referenceNames = new ArrayList(); - - this.initParams = new HashMap(); - // maybe use attributes to define the init params - initParams.put("activeReverseAjaxEnabled", "true"); - } - - @Override - public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException { - super.service(req, res); - } - - /** - * Initialize the Servlet - * There is a single instance of this Servlet which is registered - * for multiple path mappings, but the init should only run once. - */ - @Override - public void init(ServletConfig servletConfig) throws ServletException { - if (!initialized) { - super.init(patchConfig(servletConfig)); - addScriptHandler(); - initServices(); - initialized = true; - } - } - - /** - * Add in the handler to process the HTTP get for /sca/scaDomain.js - * - * This wrappers the DWR Engine handler which returns the DWR engine.js script, - * this wrappers that handler so as to add Tuscany specific header and footer code - * to the DWR engine.js to define the Tuscany SCADomain control functions and - * functions for each SCA service and reference that use . - */ - private void addScriptHandler() { - - UrlProcessor urlProcessor = (UrlProcessor)getContainer().getBean(UrlProcessor.class.getName()); - - final EngineHandler engineHandler = - (EngineHandler)getContainer().getBean(PathConstants.URL_PREFIX + "/engine.js"); - - final Handler scaDomainScriptHandler = new Handler() { - public void handle(HttpServletRequest request, HttpServletResponse response) throws IOException { - PrintWriter out = response.getWriter(); - out.println("/** Apache Tuscany scaDomain.js Header */"); - - engineHandler.handle(request, response); - - tuscanyFooter(request, out); - } - - }; - - // add the scaDomainScriptHandler to the urlProcessor - // bit of a hack, there's probably cleaner way to get it registered - urlProcessor.afterContainerSetup(new Container() { - public Object getBean(String name) { - return scaDomainScriptHandler; - } - public Collection getBeanNames() { - return Arrays.asList(new String[] {PathConstants.URL_PREFIX + SCADOMAIN_SCRIPT_PATH}); - } - }); - } - - /** - * Adds the JavaScript defining SCADomain, its control functions, - * and functions for all the available SCA services and references. - */ - private void tuscanyFooter(HttpServletRequest request, PrintWriter out) { - out.println("/** Apache Tuscany scaDomain.js Footer */"); - out.println(); - out.println("function scaDomain() { }"); - out.println(); - out.println("// SCA services"); - - // Use the DWR remoter to generate the JavaScipt function for each SCA service - Remoter remoter = (Remoter)getContainer().getBean(Remoter.class.getName()); - - String path = request.getContextPath() + request.getServletPath(); - - for (String serviceName : services.keySet()) { - String serviceScript = remoter.generateInterfaceScript(serviceName, path); - out.println(serviceScript); - } - - if (referenceNames.size() > 0) { - - out.println("// SCA reverse ajax control functions"); - out.println(); - out.println("scaDomain.open = function() { dwr.engine.setActiveReverseAjax(true); };"); - out.println("scaDomain.close = function() { dwr.engine.setActiveReverseAjax(false); };"); - - out.println(); - out.println("// SCA references"); - out.println(); - - // the JavaScript function for SCA references has an - // empty impl as it uses DWR severside "push" - for (String referenceName : referenceNames) { - out.println("function " + referenceName + "() { }"); - } - } - - out.println(); - out.println("/** End of Apache Tuscany scaDomain.js */"); - out.println(); - } - - /** - * Add an SCA reference to be added to the DWR runtime - */ - public void addReference(String name) { - referenceNames.add(name); - } - - /** - * Add an SCA service to be added to the DWR runtime - */ - public void addService(String name, final Class type, final Object instance) { - ServiceHolder holder = new ServiceHolder(); - holder.name = name; - holder.type = type; - holder.instance = instance; - services.put(name, holder); - } - - /** - * Defines each SCA service proxy instance to DWR - */ - private void initServices() { - CreatorManager creatorManager = (CreatorManager)getContainer().getBean(CreatorManager.class.getName()); - - for (final ServiceHolder holder : services.values()) { - creatorManager.addCreator(holder.name, new AbstractCreator() { - public Class getType() { - return holder.type; - } - - public Object getInstance() throws InstantiationException { - return holder.instance; - } - }); - } - } - - // utility class to aid passing around services - private class ServiceHolder { - String name; - Class type; - Object instance; - } - - /** - * Patch the ServletConfig to enable setting init params for DWR - * and so DWR can't see the Tuscany servlet's init params. - */ - private ServletConfig patchConfig(final ServletConfig servletConfig) { - ServletConfig patchedContext = new ServletConfig() { - public String getInitParameter(String name) { - return initParams.get(name); - } - public Enumeration getInitParameterNames() { - return Collections.enumeration(initParams.keySet()); - } - public ServletContext getServletContext() { - return servletConfig.getServletContext(); - } - public String getServletName() { - return servletConfig.getServletName(); - } - }; - return patchedContext; - } - -} diff --git a/java/sca/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator b/java/sca/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator deleted file mode 100644 index 1a9f91fab2..0000000000 --- a/java/sca/modules/binding-dwr/src/main/resources/META-INF/services/org.apache.tuscany.sca.extension.helper.BindingActivator +++ /dev/null @@ -1,19 +0,0 @@ -# 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 ExtensionActivator -org.apache.tuscany.sca.binding.dwr.DWRBindingActivator - -- cgit v1.2.3