7 files changed, 478 insertions, 0 deletions
diff --git a/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ComponentContextServlet.java b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ComponentContextServlet.java
new file mode 100644
index 0000000000..bf33f7ad9e
--- /dev/null
+++ b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ComponentContextServlet.java
@@ -0,0 +1,156 @@
+/*
+ * 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.implementation.web;
+
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.UnsupportedEncodingException;
+import java.util.ArrayList;
+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.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * Servlet that handles the GET request for the componentContext.js script
+ * 
+ * The script is generated by calling ScriptProcessors to output the code 
+ * for the SCA references, properties etc.
+ */
+public class ComponentContextServlet extends HttpServlet {
+    private static final long serialVersionUID = 1L;
+
+    protected static final String HEADER = "/** --- Apache Tuscany componentContext.js --- */\n";
+    protected static final String FOOTER = "/** --- Apache Tuscany componentContext.js EOF --- */\n";
+
+    public static final String COMPONENT_CONTEXT_SCRIPT_URI = "org.apache.tuscany.sca.componentContext.js";
+    
+    protected transient Map<String, Object> attributes = new HashMap<String, Object>();
+    protected transient ServletContext servletContext;
+    private transient List<ContextScriptProcessor> contextScriptProcessors = new ArrayList<ContextScriptProcessor>();
+
+    public ComponentContextServlet() {
+        contextScriptProcessors.add(new JSONRPCScripProcessor());
+    }
+
+    @Override
+    public void init(ServletConfig servletConfig) throws ServletException {
+        this.servletContext = servletConfig.getServletContext();
+        if (attributes.size() > 0) {
+            for (String name : attributes.keySet()) {
+                servletContext.setAttribute(name, attributes.get(name));
+            }
+        }
+    }
+
+    @Override
+    public void doGet(HttpServletRequest req, HttpServletResponse response) throws IOException  {
+        response.setContentType("text/plain;charset=utf-8");
+        PrintWriter out = response.getWriter();
+
+        out.write(HEADER);
+
+        doScriptInit(req, response);
+
+        doScriptReferences(req, response);
+
+        out.write(FOOTER);
+
+        out.flush();
+        out.close();
+    }
+
+    /**
+     * Calls each ContextScriptProcessor once to insert any required initilization code into componentContext.js  
+     */
+    protected void doScriptInit(HttpServletRequest req, HttpServletResponse response) throws IOException, UnsupportedEncodingException {
+
+        PrintWriter out = response.getWriter();
+        
+        out.println("if (SCA == undefined) var SCA = new Object();");
+        out.println("if (SCA.componentContext == undefined) {");
+        out.println("   SCA.componentContext = new Object();");
+        out.println("   SCA.componentContext.serviceNames = [];");
+        out.println("   SCA.componentContext.serviceProxys = [];");
+        out.println("   SCA.componentContext.getService = function(serviceName){");
+        out.println("      var i = SCA.componentContext.serviceNames.indexOf(serviceName);");
+        out.println("      return SCA.componentContext.serviceProxys[i];");
+        out.println("   };");
+        out.println("   if (componentContext == undefined) var componentContext = SCA.componentContext;");
+        out.println("}");
+
+        for (ContextScriptProcessor csp : contextScriptProcessors) {
+            csp.scriptInit(req, response);
+        }
+    }
+
+    /**
+     * Calls each ContextScriptProcessor for each SCA reference to insert code for the reference into componentContext.js  
+     */
+    protected void doScriptReferences(HttpServletRequest req, HttpServletResponse response) throws IOException, UnsupportedEncodingException {
+
+        PrintWriter out = response.getWriter();
+
+        out.write("// SCA References\n");
+        
+        RuntimeComponent component = (RuntimeComponent)servletContext.getAttribute("org.apache.tuscany.sca.implementation.web.RuntimeComponent");
+        
+        for (ComponentReference cr : component.getReferences()) {
+            String ref = "// SCA Reference " + cr.getName() + "\n";
+            out.write(ref);
+            for (ContextScriptProcessor csp : contextScriptProcessors) {
+                csp.scriptReference(cr, req, response);
+            }
+        }
+
+        out.write("\n// SCA References end.\n");
+    }
+
+    /**
+     * Calls each ContextScriptProcessor for each SCA property to insert code for the property into componentContext.js  
+     */
+    protected void doScriptProperties(HttpServletRequest req, HttpServletResponse response) throws IOException, UnsupportedEncodingException {
+        // TODO: support properties
+    }
+
+    /**
+     * Set an attribute on the ServletContext
+     */
+    public void setAttribute(String name, Object value) {
+        if (servletContext != null) {
+            servletContext.setAttribute(name, value);
+        } else {
+            attributes.put(name, value);
+        }
+    }
+
+    public void addContextScriptProcessor(ContextScriptProcessor csp) {
+        contextScriptProcessors.add(csp);
+    }
+}
diff --git a/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ContextScriptProcessor.java b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ContextScriptProcessor.java
new file mode 100644
index 0000000000..02c99debb0
--- /dev/null
+++ b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ContextScriptProcessor.java
@@ -0,0 +1,32 @@
+/*
+ * 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.implementation.web;
+
+import java.io.IOException;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.tuscany.sca.assembly.ComponentReference;
+
+public interface ContextScriptProcessor {
+    void scriptInit(HttpServletRequest req, HttpServletResponse response)  throws IOException;
+    void scriptReference(ComponentReference cr, HttpServletRequest req, HttpServletResponse response) throws IOException;
+}
diff --git a/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ContextScriptProcessorExtensionPoint.java b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ContextScriptProcessorExtensionPoint.java
new file mode 100644
index 0000000000..6d3f590309
--- /dev/null
+++ b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/ContextScriptProcessorExtensionPoint.java
@@ -0,0 +1,27 @@
+/*
+ * 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.implementation.web;
+
+
+public interface ContextScriptProcessorExtensionPoint {
+
+    void addContextScriptProcessor(ContextScriptProcessor csp);
+    
+}
diff --git a/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/DefaultContextScriptProcessorExtensionPoint.java b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/DefaultContextScriptProcessorExtensionPoint.java
new file mode 100644
index 0000000000..89b951e7d2
--- /dev/null
+++ b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/DefaultContextScriptProcessorExtensionPoint.java
@@ -0,0 +1,51 @@
+/*
+ * 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.implementation.web;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class DefaultContextScriptProcessorExtensionPoint implements ContextScriptProcessorExtensionPoint {
+
+    protected ComponentContextServlet componentContextServlet;
+    protected List<ContextScriptProcessor> tempCSPHolder = new ArrayList<ContextScriptProcessor>();
+    
+    public DefaultContextScriptProcessorExtensionPoint() {
+    }
+
+    public void addContextScriptProcessor(ContextScriptProcessor csp) {
+        if (componentContextServlet != null) {
+            componentContextServlet.addContextScriptProcessor(csp);
+        } else {
+            tempCSPHolder.add(csp); 
+        }
+    }
+    
+    public void setComponentContextServlet(ComponentContextServlet servlet) {
+        componentContextServlet = servlet;
+        if (tempCSPHolder.size() > 0) {
+            for (ContextScriptProcessor csp : tempCSPHolder) {
+                componentContextServlet.addContextScriptProcessor(csp);
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/JSONRPCScripProcessor.java b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/JSONRPCScripProcessor.java
new file mode 100644
index 0000000000..e4ec0d71f9
--- /dev/null
+++ b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/JSONRPCScripProcessor.java
@@ -0,0 +1,57 @@
+/*
+ * 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.implementation.web;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.PrintWriter;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+
+public class JSONRPCScripProcessor implements ContextScriptProcessor {
+
+    public void scriptInit(HttpServletRequest req, HttpServletResponse response) throws IOException {
+        PrintWriter out = response.getWriter();
+        InputStream is = getClass().getClassLoader().getResourceAsStream("jsonrpc.js");
+        if (is != null) {
+            int i;
+            while ((i = is.read()) != -1) {
+                out.write(i);
+            }           
+        }
+        
+        out.println();
+    }
+
+    public void scriptReference(ComponentReference cr, HttpServletRequest req, HttpServletResponse response) throws IOException {
+        for (Binding b : cr.getBindings()) {
+            if ("org.apache.tuscany.sca.binding.jsonrpc.JSONRPCBinding".equals(b.getClass().getName())) {
+               PrintWriter out = response.getWriter();
+               out.println("SCA.componentContext.serviceNames.push('" + cr.getName() + "');");
+               out.println("SCA.componentContext.serviceProxys.push(new JSONRpcClient('" + cr.getReference().getTargets().get(0).getName() + "').Service);");
+            }
+        }
+    }
+
+}
diff --git a/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/ComponentContextProxy.java b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/ComponentContextProxy.java
new file mode 100644
index 0000000000..59afe23fa4
--- /dev/null
+++ b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/ComponentContextProxy.java
@@ -0,0 +1,77 @@
+/*
+ * 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.implementation.web.runtime;
+
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.osoa.sca.CallableReference;
+import org.osoa.sca.ComponentContext;
+import org.osoa.sca.RequestContext;
+import org.osoa.sca.ServiceReference;
+
+/**
+ * Proxy ComponentContext wrappering a RuntimeComponent as the
+ * RuntimeComponent ComponentContext has not been created till later 
+ */
+public class ComponentContextProxy implements ComponentContext {
+
+    protected RuntimeComponent runtimeComponent;
+    
+    public ComponentContextProxy(RuntimeComponent runtimeComponent) {
+        this.runtimeComponent = runtimeComponent;
+    }
+    
+    protected ComponentContext getComponentContext() {
+        return runtimeComponent.getComponentContext();
+    }
+    
+    @SuppressWarnings("unchecked")
+    public <B, R extends CallableReference<B>> R cast(B arg0) throws IllegalArgumentException {
+        return (R) getComponentContext().cast(arg0);
+    }
+
+    public <B> ServiceReference<B> createSelfReference(Class<B> arg0) {
+        return getComponentContext().createSelfReference(arg0);
+    }
+
+    public <B> ServiceReference<B> createSelfReference(Class<B> arg0, String arg1) {
+        return getComponentContext().createSelfReference(arg0, arg1);
+    }
+
+    public <B> B getProperty(Class<B> arg0, String arg1) {
+        return getComponentContext().getProperty(arg0, arg1);
+    }
+
+    public RequestContext getRequestContext() {
+        return getComponentContext().getRequestContext();
+    }
+
+    public <B> B getService(Class<B> arg0, String arg1) {
+        return getComponentContext().getService(arg0, arg1);
+    }
+
+    public <B> ServiceReference<B> getServiceReference(Class<B> arg0, String arg1) {
+        return getComponentContext().getServiceReference(arg0, arg1);
+    }
+
+    public String getURI() {
+        return getComponentContext().getURI();
+    }
+
+}
diff --git a/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/WebImplementationProviderFactory.java b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/WebImplementationProviderFactory.java
new file mode 100644
index 0000000000..2518ba5381
--- /dev/null
+++ b/branches/sca-equinox/modules/implementation-web-runtime/src/main/java/org/apache/tuscany/sca/implementation/web/runtime/WebImplementationProviderFactory.java
@@ -0,0 +1,78 @@
+/*
+ * 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.implementation.web.runtime;
+
+import java.util.List;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.host.http.ServletHost;
+import org.apache.tuscany.sca.host.http.ServletHostExtensionPoint;
+import org.apache.tuscany.sca.implementation.web.ComponentContextServlet;
+import org.apache.tuscany.sca.implementation.web.ContextScriptProcessorExtensionPoint;
+import org.apache.tuscany.sca.implementation.web.DefaultContextScriptProcessorExtensionPoint;
+import org.apache.tuscany.sca.implementation.web.WebImplementation;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+public class WebImplementationProviderFactory implements ImplementationProviderFactory<WebImplementation> {
+
+    private ServletHost servletHost;
+    private ComponentContextServlet contextServlet;
+
+    public WebImplementationProviderFactory(ExtensionPointRegistry extensionPoints) {
+        ServletHostExtensionPoint servletHosts = extensionPoints.getExtensionPoint(ServletHostExtensionPoint.class);
+        List<ServletHost> hosts = servletHosts.getServletHosts();
+        if (!hosts.isEmpty()) {
+            this.servletHost = hosts.get(0);
+        }
+
+        contextServlet = new ComponentContextServlet();
+
+        DefaultContextScriptProcessorExtensionPoint dcspep = (DefaultContextScriptProcessorExtensionPoint)extensionPoints.getExtensionPoint(ContextScriptProcessorExtensionPoint.class);
+        dcspep.setComponentContextServlet(contextServlet);
+    }
+
+    public ImplementationProvider createImplementationProvider(RuntimeComponent component, WebImplementation implementation) {
+
+        servletHost.addServletMapping("org.osoa.sca.componentContext.js", contextServlet);
+        contextServlet.setAttribute("org.osoa.sca.ComponentContext", new ComponentContextProxy(component));
+        contextServlet.setAttribute("org.apache.tuscany.sca.implementation.web.RuntimeComponent", component);
+
+        return new ImplementationProvider() {
+            public Invoker createInvoker(RuntimeComponentService arg0, Operation arg1) {
+                throw new UnsupportedOperationException("Components using implementation.web have no services");
+            }
+            public void start() {
+            }
+            public void stop() {
+            }
+            public boolean supportsOneWayInvocation() {
+                return false;
+            }
+        };
+    }
+    
+    public Class<WebImplementation> getModelType() {
+        return WebImplementation.class;
+    }
+    
+}