Branch before trunk cleanup

git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@694106 13f79535-47bb-0310-9956-ffa450edef68

4 files changed, 415 insertions, 0 deletions

diff --git a/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java
new file mode 100644
index 0000000000..49f7a4e120
--- /dev/null
+++ b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationInvoker.java
@@ -0,0 +1,250 @@
+/*
+ * 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.widget.provider;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.PrintWriter;
+import java.net.InetAddress;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.net.URL;
+import java.net.UnknownHostException;
+import java.util.HashMap;
+import java.util.Map;
+
+import org.apache.tuscany.sca.assembly.Binding;
+import org.apache.tuscany.sca.assembly.ComponentProperty;
+import org.apache.tuscany.sca.assembly.ComponentReference;
+import org.apache.tuscany.sca.invocation.Invoker;
+import org.apache.tuscany.sca.invocation.Message;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+
+
+/**
+ * Implements an invoker for resource component implementations.
+ *
+ * @version $Rev$ $Date$
+ */
+class WidgetImplementationInvoker implements Invoker {
+    private RuntimeComponent component;
+    private String widgetName;
+    private String widgetFolderURL;
+    private String widgetLocationURL;
+    
+    WidgetImplementationInvoker(RuntimeComponent component, String widgetName, String widgetFolderURL, String widgetLocationURL) {
+        this.component = component;
+        this.widgetName = widgetName + ".js";
+        this.widgetFolderURL = widgetFolderURL;
+        this.widgetLocationURL = widgetLocationURL;
+    }
+    
+    public Message invoke(Message msg) {
+        
+        // Get the resource id from the request message
+        String id = (String)((Object[])msg.getBody())[0];
+        try {
+            
+            if (id.length() == 0) {
+
+                // Return an input stream for the widget resource
+                URL url = new URL(widgetLocationURL);
+                InputStream is = url.openStream();
+                msg.setBody(is);
+                
+            } else if (id.equals(widgetName)) {
+                
+                // Generate JavaScript header for use in the Widget
+                InputStream is = generateWidgetCode();
+                msg.setBody(is);
+                
+            } else {
+
+                // Return an input stream for a resource inside the
+                // widget folder
+                URL url = new URL(widgetFolderURL +'/' + id);
+                InputStream is = url.openStream();
+                msg.setBody(is);
+            }
+        } catch (MalformedURLException e) {
+
+            // Report exception as a fault
+            msg.setFaultBody(e);
+            
+        } catch (URISyntaxException e) {
+
+            // Report exception as a fault
+            msg.setFaultBody(e);
+            
+        } catch (IOException e) {
+
+            // Report exception as a fault
+            msg.setFaultBody(e);
+        }
+        return msg;
+    }
+
+    /**
+     * This helper class concatenates the necessary JavaScript client code into a
+     * single JavaScript per component
+     */
+    private InputStream generateWidgetCode() throws IOException, URISyntaxException {
+        ByteArrayOutputStream bos = new ByteArrayOutputStream();
+        PrintWriter pw = new PrintWriter(bos);
+
+        pw.println();
+        pw.println("/* Apache Tuscany SCA Widget header */");
+        pw.println();
+        
+        Map<String, Boolean> bindingClientProcessed = new HashMap<String, Boolean>();
+        
+        for(ComponentReference reference : component.getReferences()) {
+            for(Binding binding : reference.getBindings()) {
+                String bindingProxyName = WidgetProxyHelper.getJavaScriptProxyFile(binding.getClass().getName());
+                //check if binding client code was already processed and inject to the generated script
+                Boolean processedFlag = bindingClientProcessed.get(bindingProxyName);
+                if( processedFlag == null || processedFlag.booleanValue() == false) {
+                    if(bindingProxyName != null) {
+                        generateJavaScriptBindingProxy(pw,bindingProxyName);
+                        bindingClientProcessed.put(bindingProxyName, Boolean.TRUE);
+                    }
+                }
+            }
+        }
+        
+        //process properties
+        generateJavaScriptPropertyFunction(pw);
+        
+        //process references
+        generateJavaScriptReferenceFunction(pw);
+        
+       
+        pw.println();
+        pw.println("/** End of Apache Tuscany SCA Widget */");
+        pw.println();
+        pw.flush();
+        pw.close();
+
+        return new ByteArrayInputStream(bos.toByteArray());
+    }
+
+    /**
+     * Retrieve the binding proxy based on the bind name
+     * and embedded the JavaScript into this js
+     */
+    private void generateJavaScriptBindingProxy(PrintWriter pw, String bindingProxyName) throws IOException {
+        //FIXME: Handle the case where the JavaScript binding client is not found
+        InputStream is = getClass().getClassLoader().getResourceAsStream(bindingProxyName);
+        if (is != null) {
+            int i;
+            while ((i = is.read()) != -1) {
+                pw.write(i);
+            }        	
+        }
+        
+        pw.println();
+        pw.println();
+    }
+    
+    /**
+     * Generate JavaScript code to inject SCA Properties
+     * @param pw
+     * @throws IOException
+     */
+    private void generateJavaScriptPropertyFunction(PrintWriter pw) throws IOException {
+
+        pw.println("var propertyMap = new String();");
+        for(ComponentProperty property : component.getProperties()) {
+            String propertyName = property.getName();
+
+            pw.println("propertyMap." + propertyName + " = \"" + getPropertyValue(property) + "\"");
+        }
+        
+        pw.println("function Property(name) {");
+        pw.println("    return propertyMap[name];");
+        pw.println("}");
+    }
+    
+    /**
+     * Convert property value to String
+     * @param property
+     * @return
+     */
+    private String getPropertyValue(ComponentProperty property) {
+    	Document doc = (Document)property.getValue();
+    	Element rootElement = doc.getDocumentElement();
+    	
+    	String value = null;
+    	
+    	//FIXME : Provide support for isMany and other property types
+    	
+    	if (rootElement.getChildNodes().getLength() > 0) {
+            value = rootElement.getChildNodes().item(0).getTextContent();
+        }
+    	
+    	return value;
+    }
+    
+    /**
+     * Generate JavaScript code to inject SCA References
+     * @param pw
+     * @throws IOException
+     */
+    private void generateJavaScriptReferenceFunction (PrintWriter pw) throws IOException, URISyntaxException {
+        
+        pw.println("var referenceMap = new Object();");
+        for(ComponentReference reference : component.getReferences()) {
+            String referenceName = reference.getName();
+            Binding binding = reference.getBindings().get(0);
+            if (binding != null) {
+                
+                String proxyClient = WidgetProxyHelper.getJavaScriptProxyClient(binding.getClass().getName());
+                if(proxyClient != null) {
+                    
+                    // Generate the JavaScript proxy configuration code
+                    // Proxies are configured with the target URI path, as at this point we shouldn't
+                    // be generating proxies that communicate with other hosts (if a proxy needs to
+                    // communicate with another host it should be generated on and served by
+                    // that particular host)
+                    URI targetURI = URI.create(binding.getURI());
+                    String targetPath = targetURI.getPath();
+                    
+                    if(proxyClient.equals("JSONRpcClient")) {
+                        //FIXME Proxies should follow the same pattern, saving us from having to test
+                        // for JSONRpc here
+                        pw.println("referenceMap." + referenceName + " = new " + proxyClient + "(\"" + targetPath + "\").Service;");
+                    } else {
+                        pw.println("referenceMap." + referenceName + " = new " + proxyClient + "(\"" + targetPath + "\");");
+                    }
+                }                
+            }
+        }
+        
+        pw.println("function Reference(name) {");
+        pw.println("    return referenceMap[name];");
+        pw.println("}");
+    }
+
+}
diff --git a/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationProvider.java b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationProvider.java
new file mode 100644
index 0000000000..61176d912c
--- /dev/null
+++ b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationProvider.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.implementation.widget.provider;
+
+import org.apache.tuscany.sca.implementation.widget.WidgetImplementation;
+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.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+
+/**
+ * The model representing a resource implementation in an SCA assembly model.
+ *
+ * @version $Rev$ $Date$
+ */
+class WidgetImplementationProvider implements ImplementationProvider {
+    private RuntimeComponent component;
+    private String widgetLocationURL;
+    private String widgetFolderURL;
+    private String widgetName;
+
+    /**
+     * Constructs a new resource implementation provider.
+     */
+    WidgetImplementationProvider(RuntimeComponent component, WidgetImplementation implementation) {
+        this.component = component;
+        widgetLocationURL = implementation.getLocationURL().toString();
+        int s = widgetLocationURL.lastIndexOf('/');
+        widgetFolderURL = widgetLocationURL.substring(0, s);
+        widgetName = widgetLocationURL.substring(s +1);
+        widgetName = widgetName.substring(0, widgetName.lastIndexOf('.'));
+    }
+
+    public Invoker createInvoker(RuntimeComponentService service, Operation operation) {
+        WidgetImplementationInvoker invoker = new WidgetImplementationInvoker(component, widgetName, widgetFolderURL, widgetLocationURL);
+        return invoker;
+    }
+    
+    public boolean supportsOneWayInvocation() {
+        return false;
+    }
+
+    public void start() {
+    }
+
+    public void stop() {
+    }
+
+}
diff --git a/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationProviderFactory.java b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationProviderFactory.java
new file mode 100644
index 0000000000..c57680fa1c
--- /dev/null
+++ b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetImplementationProviderFactory.java
@@ -0,0 +1,47 @@
+/*
+ * 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.widget.provider;
+
+import org.apache.tuscany.sca.core.ExtensionPointRegistry;
+import org.apache.tuscany.sca.implementation.widget.WidgetImplementation;
+import org.apache.tuscany.sca.provider.ImplementationProvider;
+import org.apache.tuscany.sca.provider.ImplementationProviderFactory;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+
+/**
+ * The model representing a resource implementation in an SCA assembly model.
+ *
+ * @version $Rev$ $Date$
+ */
+public class WidgetImplementationProviderFactory implements ImplementationProviderFactory<WidgetImplementation> {
+
+    /**
+     * Constructs a resource implementation.
+     */
+    public WidgetImplementationProviderFactory(ExtensionPointRegistry extensionPoints) {
+    }
+
+    public ImplementationProvider createImplementationProvider(RuntimeComponent component, WidgetImplementation implementation) {
+        return new WidgetImplementationProvider(component, implementation);
+    }
+    
+    public Class<WidgetImplementation> getModelType() {
+        return WidgetImplementation.class;
+    }
+}
diff --git a/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetProxyHelper.java b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetProxyHelper.java
new file mode 100644
index 0000000000..5a0146a749
--- /dev/null
+++ b/branches/trunk-20080910/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetProxyHelper.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.widget.provider;
+
+import java.util.HashMap;
+import java.util.Map;
+
+/**
+ *
+ * @version $Rev$ $Date$
+ */
+class WidgetProxyHelper {
+    private static Map<String, String> proxyFileRegistry = new HashMap<String, String>();
+    private static Map<String, String> proxyClient = new HashMap<String, String>();
+
+    static {
+        proxyFileRegistry.put("org.apache.tuscany.sca.binding.atom.impl.AtomBindingImpl", "binding-atom.js");
+        proxyClient.put("org.apache.tuscany.sca.binding.atom.impl.AtomBindingImpl", "AtomClient");
+        
+        proxyFileRegistry.put("org.apache.tuscany.sca.binding.jsonrpc.JSONRPCBinding", "binding-jsonrpc.js");
+        proxyClient.put("org.apache.tuscany.sca.binding.jsonrpc.JSONRPCBinding", "JSONRpcClient");
+
+        proxyFileRegistry.put("org.apache.tuscany.sca.binding.http.impl.HTTPBindingImpl", "binding-http.js");
+        proxyClient.put("org.apache.tuscany.sca.binding.http.impl.HTTPBindingImpl", "HTTPClient");
+    }
+    
+    static String getJavaScriptProxyFile(String bindingClass) {
+        return proxyFileRegistry.get(bindingClass);
+    }
+    
+    static String getJavaScriptProxyClient(String bindingClass) {
+        return proxyClient.get(bindingClass);
+    }
+}