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Diffstat (limited to 'branches/sca-android-r643746/modules/binding-jsonrpc/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java')
-rw-r--r-- | branches/sca-android-r643746/modules/binding-jsonrpc/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/branches/sca-android-r643746/modules/binding-jsonrpc/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java b/branches/sca-android-r643746/modules/binding-jsonrpc/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java new file mode 100644 index 0000000000..cb08ef15e2 --- /dev/null +++ b/branches/sca-android-r643746/modules/binding-jsonrpc/src/main/java/org/apache/tuscany/sca/binding/jsonrpc/provider/JSONRPCServiceBindingProvider.java @@ -0,0 +1,189 @@ +/*
+ * 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.jsonrpc.provider;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.tuscany.sca.binding.jsonrpc.JSONRPCBinding;
+import org.apache.tuscany.sca.binding.jsonrpc.JSONRPCServiceServlet;
+import org.apache.tuscany.sca.binding.jsonrpc.ScaDomainScriptServlet;
+import org.apache.tuscany.sca.databinding.javabeans.SimpleJavaDataBinding;
+import org.apache.tuscany.sca.databinding.json.JSONDataBinding;
+import org.apache.tuscany.sca.host.http.ServletHost;
+import org.apache.tuscany.sca.interfacedef.DataType;
+import org.apache.tuscany.sca.interfacedef.Interface;
+import org.apache.tuscany.sca.interfacedef.InterfaceContract;
+import org.apache.tuscany.sca.interfacedef.Operation;
+import org.apache.tuscany.sca.interfacedef.java.JavaInterface;
+import org.apache.tuscany.sca.provider.ServiceBindingProvider;
+import org.apache.tuscany.sca.runtime.RuntimeComponent;
+import org.apache.tuscany.sca.runtime.RuntimeComponentService;
+
+/**
+ * Implementation of the JSONRPC Binding Provider for Services
+ *
+ * @version $Rev: 639240 $ $Date: 2008-03-20 02:59:23 -0800 (Thu, 20 Mar 2008) $
+ */
+public class JSONRPCServiceBindingProvider implements ServiceBindingProvider {
+
+ // Path to the scaDomain.js script
+ // Note: this is the same as the Ajax binding to keep the client code
+ // the same for clients using either the ajax or jsonrpc binding
+ private static final String SCA_DOMAIN_SCRIPT = "/SCADomain/scaDomain.js";
+
+ private RuntimeComponent component;
+ private RuntimeComponentService service;
+ private InterfaceContract serviceContract;
+ private JSONRPCBinding binding;
+ private ServletHost servletHost;
+ private List<String> servletMappings = new ArrayList<String>();
+ private String domainScriptMapping;
+
+ public JSONRPCServiceBindingProvider(RuntimeComponent component,
+ RuntimeComponentService service,
+ JSONRPCBinding binding,
+ ServletHost servletHost) {
+ this.component = component;
+ this.service = service;
+ this.binding = binding;
+ this.servletHost = servletHost;
+
+ //clone the service contract to avoid databinding issues
+ try {
+ this.serviceContract = (InterfaceContract)service.getInterfaceContract().clone();
+ } catch(CloneNotSupportedException e) {
+ this.serviceContract = service.getInterfaceContract();
+ }
+
+ setDataBinding(serviceContract.getInterface());
+ }
+
+ public InterfaceContract getBindingInterfaceContract() {
+ return service.getInterfaceContract();
+ }
+
+ public boolean supportsOneWayInvocation() {
+ return false;
+ }
+
+ public void start() {
+ // Set default databinding to json
+ serviceContract.getInterface().setDefaultDataBinding(JSONDataBinding.NAME);
+
+ // Determine the service business interface
+ Class<?> serviceInterface = getTargetJavaClass(serviceContract.getInterface());
+
+ // Create a Java proxy to the target service
+ Object proxy = component.getComponentContext().createSelfReference(serviceInterface, service).getService();
+
+ // Create and register a Servlet for this service
+ JSONRPCServiceServlet serviceServlet =
+ new JSONRPCServiceServlet(binding, service, serviceContract, serviceInterface, proxy);
+ String mapping = binding.getURI();
+ if (!mapping.endsWith("/")) {
+ mapping += "/";
+ }
+ if (!mapping.endsWith("*")) {
+ mapping += "*";
+ }
+
+ servletHost.addServletMapping(mapping, serviceServlet);
+ servletMappings.add(mapping);
+ servletHost.addServletMapping(binding.getURI(), serviceServlet);
+ servletMappings.add(binding.getURI());
+
+ // Save the actual binding URI
+ binding.setURI(servletHost.getURLMapping(binding.getURI()).toString());
+
+ // Register service to scaDomain.js
+ int port;
+ URI uri = URI.create(binding.getURI());
+ port = uri.getPort();
+ if (port == -1) {
+ port = servletHost.getDefaultPort();
+ }
+
+ // get the ScaDomainScriptServlet, if it doesn't yet exist create one
+ // this uses removeServletMapping / addServletMapping as there is no getServletMapping facility
+ domainScriptMapping = URI.create("http://localhost:" + port + SCA_DOMAIN_SCRIPT).toString();
+ ScaDomainScriptServlet scaDomainServlet =
+ (ScaDomainScriptServlet)servletHost.getServletMapping(domainScriptMapping);
+ if (scaDomainServlet == null) {
+ scaDomainServlet = new ScaDomainScriptServlet();
+ servletHost.addServletMapping(domainScriptMapping, scaDomainServlet);
+ }
+
+ // Add this service to the SCA Domain Script Servlet
+ scaDomainServlet.addService(binding.getName());
+ }
+
+ public void stop() {
+
+ // Remove the Servlet mappings we've added
+ for (String mapping: servletMappings) {
+ servletHost.removeServletMapping(mapping);
+ }
+
+ // Unregister the service from the SCA Domain Script Servlet
+ ScaDomainScriptServlet scaDomainServlet = (ScaDomainScriptServlet) servletHost.getServletMapping(domainScriptMapping);
+ if (scaDomainServlet != null) {
+ scaDomainServlet.removeService(binding.getName());
+
+ // Remove the Servlet if there's no more registered services
+ if (scaDomainServlet.getServiceNames().isEmpty()) {
+ servletHost.removeServletMapping(domainScriptMapping);
+ }
+ }
+
+ }
+
+ private Class<?> getTargetJavaClass(Interface targetInterface) {
+ // TODO: right now assume that the target is always a Java
+ // Implementation. Need to figure out how to generate Java
+ // Interface in cases where the target is not a Java Implementation
+ return ((JavaInterface)targetInterface).getJavaClass();
+ }
+
+ private void setDataBinding(Interface interfaze) {
+ List<Operation> operations = interfaze.getOperations();
+ for (Operation operation : operations) {
+ operation.setDataBinding(JSONDataBinding.NAME);
+ DataType<List<DataType>> inputType = operation.getInputType();
+ if (inputType != null) {
+ List<DataType> logical = inputType.getLogical();
+ for (DataType inArg : logical) {
+ if (!SimpleJavaDataBinding.NAME.equals(inArg.getDataBinding())) {
+ inArg.setDataBinding(JSONDataBinding.NAME);
+ }
+ }
+ }
+ DataType outputType = operation.getOutputType();
+ if (outputType != null) {
+ if (!SimpleJavaDataBinding.NAME.equals(outputType.getDataBinding())) {
+ outputType.setDataBinding(JSONDataBinding.NAME);
+ }
+ }
+ }
+ }
+
+
+}
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