diff options
Diffstat (limited to 'sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime-dojo/src/main/java/org/apache/tuscany/sca/implementation/widget/dojo/DojoJavaScriptComponentGeneratorImpl.java')
| -rw-r--r-- | sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime-dojo/src/main/java/org/apache/tuscany/sca/implementation/widget/dojo/DojoJavaScriptComponentGeneratorImpl.java | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime-dojo/src/main/java/org/apache/tuscany/sca/implementation/widget/dojo/DojoJavaScriptComponentGeneratorImpl.java b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime-dojo/src/main/java/org/apache/tuscany/sca/implementation/widget/dojo/DojoJavaScriptComponentGeneratorImpl.java new file mode 100644 index 0000000000..d9e4e698e0 --- /dev/null +++ b/sca-java-2.x/tags/2.0.1-RC1/modules/implementation-widget-runtime-dojo/src/main/java/org/apache/tuscany/sca/implementation/widget/dojo/DojoJavaScriptComponentGeneratorImpl.java @@ -0,0 +1,267 @@ +/* + * 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.dojo; + +import java.io.IOException; +import java.io.InputStream; +import java.io.PrintWriter; +import java.util.HashMap; +import java.util.Map; + +import javax.xml.namespace.QName; + +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.assembly.Endpoint; +import org.apache.tuscany.sca.assembly.EndpointReference; +import org.apache.tuscany.sca.core.ExtensionPointRegistry; +import org.apache.tuscany.sca.runtime.RuntimeComponent; +import org.apache.tuscany.sca.runtime.RuntimeEndpointReference; +import org.apache.tuscany.sca.web.javascript.ComponentJavaScriptGenerator; +import org.apache.tuscany.sca.web.javascript.JavascriptProxyFactory; +import org.apache.tuscany.sca.web.javascript.JavascriptProxyFactoryExtensionPoint; +import org.w3c.dom.Document; +import org.w3c.dom.Element; + +public class DojoJavaScriptComponentGeneratorImpl implements ComponentJavaScriptGenerator { + private static final QName NAME = new QName("http://tuscany.apache.org/xmlns/sca/1.1", "component.script.generator.dojo"); + + private ExtensionPointRegistry extensionPoints; + + private JavascriptProxyFactoryExtensionPoint javascriptProxyFactories; + + public DojoJavaScriptComponentGeneratorImpl(ExtensionPointRegistry extensionPoints) { + this.extensionPoints = extensionPoints; + this.javascriptProxyFactories = extensionPoints.getExtensionPoint(JavascriptProxyFactoryExtensionPoint.class); + } + + public QName getQName() { + return NAME; + } + + public void generateJavaScriptCode(RuntimeComponent component, PrintWriter pw) throws IOException { + 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(EndpointReference epr : reference.getEndpointReferences()) { + Endpoint targetEndpoint = epr.getTargetEndpoint(); + if (targetEndpoint.isUnresolved()) { + //force resolution and targetEndpoint binding calculations + //by calling the getInvocationChain + ((RuntimeEndpointReference) epr).getInvocationChains(); + targetEndpoint = epr.getTargetEndpoint(); + } + + Binding binding = targetEndpoint.getBinding(); + if (binding != null) { + JavascriptProxyFactory jsProxyFactory = javascriptProxyFactories.getProxyFactory(binding.getClass()); + + String bindingProxyName = jsProxyFactory.getJavascriptProxyFile(); + //check if binding client code was already processed and inject to the generated script + if(bindingProxyName != null) { + Boolean processedFlag = bindingClientProcessed.get(bindingProxyName); + if( processedFlag == null || processedFlag.booleanValue() == false) { + generateJavaScriptBindingProxy(jsProxyFactory, pw); + bindingClientProcessed.put(bindingProxyName, Boolean.TRUE); + } + } + } + } + } + + pw.println(); + pw.println("/* Tuscany Reference/Property injection code */"); + pw.println(); + + generateJavaScriptHeader(component, javascriptProxyFactories,pw); + + pw.println(); + + //define tuscany.sca namespace + generateJavaScriptNamespace(pw); + + pw.println(); + + //process properties + generateJavaScriptPropertyFunction(component, pw); + + pw.println(); + + //process references + generateJavaScriptReferenceFunction(component, javascriptProxyFactories,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(JavascriptProxyFactory javascriptProxyFactory, PrintWriter pw) throws IOException { + InputStream is = javascriptProxyFactory.getJavascriptProxyFileAsStream(); + if (is != null) { + int i; + while ((i = is.read()) != -1) { + pw.write(i); + } + } + + pw.println(); + pw.println(); + } + + /** + * + * @param pw + * @throws IOException + */ + private static void generateJavaScriptHeader(RuntimeComponent component, JavascriptProxyFactoryExtensionPoint javascriptProxyFactories, PrintWriter pw) throws IOException { + Map<String, Boolean> bindingHeaderProcessed = new HashMap<String, Boolean>(); + + for(ComponentReference reference : component.getReferences()) { + for(EndpointReference epr : reference.getEndpointReferences()) { + Endpoint targetEndpoint = epr.getTargetEndpoint(); + if (targetEndpoint.isUnresolved()) { + //force resolution and targetEndpoint binding calculations + //by calling the getInvocationChain + ((RuntimeEndpointReference) epr).getInvocationChains(); + targetEndpoint = epr.getTargetEndpoint(); + } + + Binding binding = targetEndpoint.getBinding(); + if (binding != null) { + JavascriptProxyFactory jsProxyFactory = javascriptProxyFactories.getProxyFactory(binding.getClass()); + + String bindingKey = binding.getClass().getName(); + Boolean processedFlag = bindingHeaderProcessed.get(bindingKey); + + //check if binding client code was already processed and inject to the generated script + if( processedFlag == null || processedFlag.booleanValue() == false) { + pw.println(jsProxyFactory.createJavascriptHeader(reference)); + bindingHeaderProcessed.put(bindingKey, Boolean.TRUE); + } + } + } + } + } + + + /** + * Generate the tuscany.sca namespace if not yet available + * @param pw + * @throws IOException + */ + private static void generateJavaScriptNamespace(PrintWriter pw) throws IOException { + pw.println("if (!window.tuscany) { \n" + + "window.tuscany = {}; \n" + + "}"); + pw.println("var __tuscany = window.tuscany;"); + + 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 = {};"); + for(ComponentProperty property : component.getProperties()) { + String propertyName = property.getName(); + + pw.println("__tuscany.sca.propertyMap." + propertyName + " = new String(\"" + 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, JavascriptProxyFactoryExtensionPoint javascriptProxyFactories, PrintWriter pw) throws IOException { + + pw.println("__tuscany.sca.referenceMap = {};"); + for(ComponentReference reference : component.getReferences()) { + for(EndpointReference epr : reference.getEndpointReferences()) { + Endpoint targetEndpoint = epr.getTargetEndpoint(); + if (targetEndpoint.isUnresolved()) { + //force resolution and targetEndpoint binding calculations + //by calling the getInvocationChain + ((RuntimeEndpointReference) epr).getInvocationChains(); + targetEndpoint = epr.getTargetEndpoint(); + } + + Binding binding = targetEndpoint.getBinding(); + if (binding != null) { + String referenceName = reference.getName(); + JavascriptProxyFactory jsProxyFactory = javascriptProxyFactories.getProxyFactory(binding.getClass()); + + pw.println("__tuscany.sca.referenceMap." + referenceName + " = new " + jsProxyFactory.createJavascriptReference(reference) + ";"); + } + } + } + + pw.println("tuscany.sca.Reference = function (name) {"); + pw.println(" return __tuscany.sca.referenceMap[name];"); + pw.println("}"); + } + +} |