| /* |
| * 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.web.javascript.dojo; |
| |
| import java.net.URI; |
| import java.util.logging.Logger; |
| |
| import javax.servlet.Servlet; |
| |
| import org.apache.tuscany.sca.core.ExtensionPointRegistry; |
| import org.apache.tuscany.sca.host.http.ServletHost; |
| import org.apache.tuscany.sca.host.http.ServletHostHelper; |
| import org.apache.tuscany.sca.host.http.ServletMappingException; |
| import org.apache.tuscany.sca.implementation.widget.javascript.WidgetImplementationJavascriptProvider; |
| |
| public class DojoWidgetJavascriptProvider implements WidgetImplementationJavascriptProvider { |
| private final static Logger logger = Logger.getLogger(DojoWidgetJavascriptProvider.class.getName()); |
| |
| private static final String dojoBaseUri = URI.create("/dojo").toString(); |
| private static final String dojoUri = URI.create("/dojo/*").toString(); |
| |
| private static final String dojoxBaseUri = URI.create("/dojox").toString(); |
| private static final String dojoxUri = URI.create("/dojox/*").toString(); |
| |
| private static final String dijitBaseUri = URI.create("/dijit").toString(); |
| private static final String dijitUri = URI.create("/dijit/*").toString(); |
| |
| private static final String tuscanyBaseUri = URI.create("/tuscany").toString(); |
| private static final String tuscanyUri = URI.create("/tuscany/*").toString(); |
| |
| private static int counter = 0; |
| |
| private ServletHost servletHost; |
| |
| public DojoWidgetJavascriptProvider(ExtensionPointRegistry registry) { |
| this.servletHost = ServletHostHelper.getServletHost(registry); |
| } |
| |
| public void start() { |
| |
| if (servletHost == null) { |
| throw new IllegalStateException("Can't find ServletHost reference !"); |
| } |
| |
| Servlet servlet = null; |
| |
| servlet = servletHost.getServletMapping(dojoBaseUri); |
| if(servlet == null) { |
| try { |
| DojoResourceServlet baseResourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(dojoBaseUri, baseResourceServlet); |
| |
| DojoResourceServlet resourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(dojoUri, resourceServlet); |
| } catch (ServletMappingException me ) { |
| logger.warning("Dojo already registered at :" + dojoBaseUri); |
| } |
| } |
| |
| servlet = servletHost.getServletMapping(dojoxBaseUri); |
| if(servlet == null) { |
| try { |
| DojoResourceServlet baseResourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(dojoxBaseUri, baseResourceServlet); |
| |
| DojoResourceServlet resourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(dojoxUri, resourceServlet); |
| } catch (ServletMappingException me ) { |
| logger.warning("Dojox already registered at :" + dojoxBaseUri); |
| } |
| } |
| |
| servlet = servletHost.getServletMapping(dijitBaseUri); |
| if(servlet == null) { |
| try { |
| DojoResourceServlet baseResourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(dijitBaseUri, baseResourceServlet); |
| |
| DojoResourceServlet resourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(dijitUri, resourceServlet); |
| } catch (ServletMappingException me ) { |
| logger.warning("Dijit already registered at :" + dijitBaseUri); |
| } |
| } |
| |
| servlet = servletHost.getServletMapping(tuscanyBaseUri); |
| if(servlet == null) { |
| try { |
| DojoResourceServlet baseResourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(tuscanyBaseUri, baseResourceServlet); |
| |
| DojoResourceServlet resourceServlet = new DojoResourceServlet(); |
| servletHost.addServletMapping(tuscanyUri, resourceServlet); |
| } catch (ServletMappingException me ) { |
| logger.warning("Tuscany dojo extensions already registered at :" + tuscanyBaseUri); |
| } |
| } |
| |
| counter += 1; |
| logger.info("Registered Dojo and Tuscany Dojo extensions (counter=" + counter + ")"); |
| } |
| |
| public void stop() { |
| if(counter > 0) { |
| counter = counter -= 1; |
| logger.info("Unregistering Dojo and Tuscany Dojo extensions (counter=" + counter + ")"); |
| } |
| |
| Servlet servlet = servletHost.getServletMapping(dojoBaseUri); |
| if(servlet != null && counter == 0) { |
| servletHost.removeServletMapping(dojoBaseUri); |
| servletHost.removeServletMapping(dojoUri); |
| |
| servletHost.removeServletMapping(dojoxBaseUri); |
| servletHost.removeServletMapping(dojoxUri); |
| |
| servletHost.removeServletMapping(tuscanyBaseUri); |
| servletHost.removeServletMapping(tuscanyUri); |
| } |
| |
| servletHost = null; |
| |
| } |
| } |