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Diffstat (limited to 'sca-java-2.x/branches/2.0/modules/binding-comet-runtime/src/main/java/org/apache/tuscany/sca/binding/comet/runtime/javascript')
2 files changed, 153 insertions, 0 deletions
diff --git a/sca-java-2.x/branches/2.0/modules/binding-comet-runtime/src/main/java/org/apache/tuscany/sca/binding/comet/runtime/javascript/JavascriptGenerator.java b/sca-java-2.x/branches/2.0/modules/binding-comet-runtime/src/main/java/org/apache/tuscany/sca/binding/comet/runtime/javascript/JavascriptGenerator.java new file mode 100644 index 0000000000..ecf470da2d --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/binding-comet-runtime/src/main/java/org/apache/tuscany/sca/binding/comet/runtime/javascript/JavascriptGenerator.java @@ -0,0 +1,91 @@ +/* + * 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.comet.runtime.javascript; + +import org.apache.tuscany.sca.assembly.ComponentService; +import org.apache.tuscany.sca.interfacedef.Operation; + +/** + * Generates javascript proxies for the comet services. + */ +public class JavascriptGenerator { + + /** + * Namespace for the Tuscany Comet Javascript toolkit. + */ + public static final String JS_NAMESPACE = "SCA"; + + /** + * Name for the SCA component context. + */ + private static final String COMPONENT_CONTEXT = "this.CometComponentContext"; + + /** + * Name for the object performing comet specific tasks. + */ + private static final String TUSCANY_COMET = "SCA.TuscanyComet"; + + private static StringBuffer javascript = new StringBuffer(); + + private JavascriptGenerator() { + } + + public static StringBuffer getJavascript() { + return JavascriptGenerator.javascript; + } + + /** + * Generates the javascript proxy for a service. + * + * @param service + * the service for which generation is performed + */ + public static void generateServiceProxy(final ComponentService service) { + JavascriptGenerator.javascript.append(JavascriptGenerator.COMPONENT_CONTEXT + "." + service.getName() + + " = new Object();\n"); + } + + /** + * Generates the method inside the service proxy for the specified + * operation. + * + * @param service + * the service containing the operation + * @param operation + * the operation + */ + public static void generateMethodProxy(final ComponentService service, final Operation operation) { + JavascriptGenerator.javascript.append(JavascriptGenerator.COMPONENT_CONTEXT + "." + service.getName() + "." + + operation.getName() + " = function("); + for (int i = 0; i < operation.getInputType().getLogical().size(); i++) { + JavascriptGenerator.javascript.append("p" + i + ", "); + } + JavascriptGenerator.javascript.append("callbackMethod) {\n"); + // send method argumets as JSON array + JavascriptGenerator.javascript.append(" var params = [];\n"); + for (int i = 0; i < operation.getInputType().getLogical().size(); i++) { + JavascriptGenerator.javascript.append(" params.push(p" + i + ");\n"); + } + JavascriptGenerator.javascript.append(" " + JavascriptGenerator.TUSCANY_COMET + ".callAsync('" + + service.getName() + "/" + operation.getName() + "', $.toJSON(params), callbackMethod);\n"); + JavascriptGenerator.javascript.append("}\n"); + } + +} diff --git a/sca-java-2.x/branches/2.0/modules/binding-comet-runtime/src/main/java/org/apache/tuscany/sca/binding/comet/runtime/javascript/JavascriptResource.java b/sca-java-2.x/branches/2.0/modules/binding-comet-runtime/src/main/java/org/apache/tuscany/sca/binding/comet/runtime/javascript/JavascriptResource.java new file mode 100644 index 0000000000..06f7bfb546 --- /dev/null +++ b/sca-java-2.x/branches/2.0/modules/binding-comet-runtime/src/main/java/org/apache/tuscany/sca/binding/comet/runtime/javascript/JavascriptResource.java @@ -0,0 +1,62 @@ +/* + * 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.comet.runtime.javascript; + +import java.io.ByteArrayInputStream; +import java.io.InputStream; +import java.io.SequenceInputStream; + +import javax.ws.rs.GET; +import javax.ws.rs.Path; +import javax.ws.rs.Produces; + +/** + * Handles calls for the retrieving the Javascript toolkit. + */ +@Path("/") +@Produces("text/javascript") +public class JavascriptResource { + + /** + * Dependencies for the Tuscany Comet Javascript API. + */ + private static final String[] DEPENDENCIES = { "/jquery.atmosphere.js", "/jquery.json-2.2.min.js", + "/jquery.guid.js", "/cometComponentContext.js" }; + + /** + * Method called when the Javascript toolkit is requested. + * + * @return InputStream containing the Javascript code. + */ + @GET + @Path("/org.apache.tuscany.sca.CometComponentContext.js") + public InputStream getJavascript() { + InputStream stream = null; + for (String dependency : JavascriptResource.DEPENDENCIES) { + if (stream == null) { + stream = this.getClass().getResourceAsStream(dependency); + } else { + stream = new SequenceInputStream(stream, this.getClass().getResourceAsStream(dependency)); + } + } + final String generatedJs = JavascriptGenerator.getJavascript().toString() + "\n}"; + return new SequenceInputStream(stream, new ByteArrayInputStream(generatedJs.getBytes())); + } +} |