1 files changed, 0 insertions, 247 deletions
diff --git a/sandbox/ant/sca/trunk/modules/binding-dwr-runtime/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java b/sandbox/ant/sca/trunk/modules/binding-dwr-runtime/src/main/java/org/apache/tuscany/sca/binding/dwr/DWRServlet.java
deleted file mode 100644
index 3a2471d8f3..0000000000
--- a/sandbox/ant/sca/trunk/modules/binding-dwr-runtime/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 <binding.dwr>,
- * 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<String, ServiceHolder> services;
-    private transient List<String> referenceNames;
-    private transient boolean initialized;
-    private transient Map<String, String> initParams;
-
-    private static final String SCADOMAIN_SCRIPT_PATH = "/scaDomain.js";
-
-    public DWRServlet() {
-        this.services = new HashMap<String, ServiceHolder>();
-        this.referenceNames = new ArrayList<String>();
-
-        this.initParams = new HashMap<String, String>();
-        // maybe use <binding.dwr> 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 <binding.dwr>.
-     */
-    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;
-    }
-
-}