From 795d14f2ec2c73c674c08d78d5e8c0333ffaa9b3 Mon Sep 17 00:00:00 2001 From: lresende Date: Tue, 24 Mar 2009 04:06:36 +0000 Subject: TUSCANY-2838 - Missing files required by implementation widget to properly register component java script in a webapp environment git-svn-id: http://svn.us.apache.org/repos/asf/tuscany@757656 13f79535-47bb-0310-9956-ffa450edef68 --- .../provider/WidgetComponentScriptGenerator.java | 246 +++++++++++++++++++++ 1 file changed, 246 insertions(+) create mode 100644 branches/sca-java-1.x/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetComponentScriptGenerator.java (limited to 'branches/sca-java-1.x/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetComponentScriptGenerator.java') diff --git a/branches/sca-java-1.x/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetComponentScriptGenerator.java b/branches/sca-java-1.x/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetComponentScriptGenerator.java new file mode 100644 index 0000000000..1b42359a81 --- /dev/null +++ b/branches/sca-java-1.x/modules/implementation-widget-runtime/src/main/java/org/apache/tuscany/sca/implementation/widget/provider/WidgetComponentScriptGenerator.java @@ -0,0 +1,246 @@ +/* + * 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.OutputStream; +import java.io.PrintWriter; +import java.net.URI; +import java.net.URISyntaxException; +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.runtime.RuntimeComponent; +import org.w3c.dom.Document; +import org.w3c.dom.Element; + +/** + * This helper class concatenates the necessary JavaScript client code into a + * single JavaScript per component + * @version $Rev: 665897 $ $Date: 2008-06-09 14:31:03 -0700 (Mon, 09 Jun 2008) $ + */ +public class WidgetComponentScriptGenerator { + + private static final long serialVersionUID = 1L; + + public static InputStream generateWidgetCode(RuntimeComponent component) throws IOException, URISyntaxException { + ByteArrayOutputStream bos = new ByteArrayOutputStream(); + PrintWriter pw = new PrintWriter(bos); + + generateWidgetCode(component, pw); + + return new ByteArrayInputStream(bos.toByteArray()); + } + + public static void generateWidgetCode(RuntimeComponent component, OutputStream os) throws IOException, URISyntaxException { + PrintWriter pw = new PrintWriter(os); + + generateWidgetCode(component, pw); + } + + + /** + * This helper class concatenates the necessary JavaScript client code into a + * single JavaScript per component + */ + public static void generateWidgetCode(RuntimeComponent component, PrintWriter pw) throws IOException, URISyntaxException { + pw.println(); + pw.println("/* Apache Tuscany SCA Widget header */"); + pw.println(); + + Map bindingClientProcessed = new HashMap(); + + for(ComponentReference reference : component.getReferences()) { + for(Binding binding : reference.getBindings()) { + String [] bindingProxyNames = WidgetProxyHelper.getJavaScriptProxyFile(binding.getClass().getName()); + //check if binding client code was already processed and inject to the generated script + if ( bindingProxyNames != null ) { + for ( int i = 0; i < bindingProxyNames.length; i++ ) { + String bindingProxyName = bindingProxyNames[ i ]; + if(bindingProxyName != null) { + Boolean processedFlag = bindingClientProcessed.get(bindingProxyName); + if( processedFlag == null || processedFlag.booleanValue() == false) { + generateJavaScriptBindingProxy(pw,bindingProxyName); + bindingClientProcessed.put(bindingProxyName, Boolean.TRUE); + } + } + } + } + } + } + + pw.println(); + pw.println("/* Tuscany Reference/Property injection code */"); + pw.println(); + + + //define tuscany.sca namespace + generateJavaScriptNamespace(pw); + + pw.println(); + + //process properties + generateJavaScriptPropertyFunction(component, pw); + + pw.println(); + + //process references + generateJavaScriptReferenceFunction(component, pw); + + + pw.println(); + pw.println("/** End of Apache Tuscany SCA Widget */"); + pw.println(); + pw.flush(); + pw.close(); + + + } + + + /** + * Retrieve the binding proxy based on the bind name + * and embedded the JavaScript into this js + */ + private static void generateJavaScriptBindingProxy(PrintWriter pw, String bindingProxyName) throws IOException { + //FIXME: Handle the case where the JavaScript binding client is not found + InputStream is = WidgetComponentScriptGenerator.class.getClassLoader().getResourceAsStream(bindingProxyName); + if (is != null) { + int i; + while ((i = is.read()) != -1) { + pw.write(i); + } + } + + pw.println(); + pw.println(); + } + + /** + * Generate the tuscany.sca namespace if not yet available + * @param pw + * @throws IOException + */ + private static void generateJavaScriptNamespace(PrintWriter pw) throws IOException { + pw.println("if (!tuscany) { \n" + + "var tuscany = {}; \n" + + "}"); + pw.println("if (!tuscany.sca) { \n" + + "tuscany.sca = {}; \n" + + "}"); + } + + /** + * Generate JavaScript code to inject SCA Properties + * @param pw + * @throws IOException + */ + private static void generateJavaScriptPropertyFunction(RuntimeComponent component, PrintWriter pw) throws IOException { + pw.println("tuscany.sca.propertyMap = new String();"); + for(ComponentProperty property : component.getProperties()) { + String propertyName = property.getName(); + + pw.println("tuscany.sca.propertyMap." + propertyName + " = \"" + getPropertyValue(property) + "\""); + } + + pw.println("tuscany.sca.Property = function (name) {"); + pw.println(" return tuscany.sca.propertyMap[name];"); + pw.println("}"); + } + + /** + * Convert property value to String + * @param property + * @return + */ + private static 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 static void generateJavaScriptReferenceFunction (RuntimeComponent component, PrintWriter pw) throws IOException, URISyntaxException { + + pw.println("tuscany.sca.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; + if(targetURI.getScheme() == null) { + targetPath = targetURI.getPath(); + } else { + targetPath = targetURI.toString(); + } + */ + + 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("tuscany.sca.referenceMap." + referenceName + " = new " + proxyClient + "(\"" + targetPath + "\").Service;"); + } else { + pw.println("tuscany.sca.referenceMap." + referenceName + " = new " + proxyClient + "(\"" + targetPath + "\");"); + } + } + } + } + + pw.println("tuscany.sca.Reference = function (name) {"); + pw.println(" return tuscany.sca.referenceMap[name];"); + pw.println("}"); + } + +} -- cgit v1.2.3