| /** |
| * 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 |
| * <p/> |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * <p/> |
| * 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.qpid.server.management.plugin.servlet.rest; |
| |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.LinkedHashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import javax.servlet.ServletException; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| import org.apache.qpid.server.model.Broker; |
| import org.apache.qpid.server.model.ConfiguredObject; |
| import org.apache.qpid.server.model.Model; |
| import org.codehaus.jackson.map.ObjectMapper; |
| import org.codehaus.jackson.map.SerializationConfig; |
| |
| public class StructureServlet extends AbstractServlet |
| { |
| public StructureServlet() |
| { |
| super(); |
| } |
| |
| @Override |
| protected void doGetWithSubjectAndActor(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException |
| { |
| response.setContentType("application/json"); |
| response.setStatus(HttpServletResponse.SC_OK); |
| |
| response.setHeader("Cache-Control","no-cache"); |
| response.setHeader("Pragma","no-cache"); |
| response.setDateHeader ("Expires", 0); |
| |
| // TODO filtering??? request.getParameter("filter"); // filter=1,2,3 /groups/*/* |
| |
| Map<String,Object> structure = generateStructure(getBroker(), Broker.class); |
| |
| final PrintWriter writer = response.getWriter(); |
| ObjectMapper mapper = new ObjectMapper(); |
| mapper.configure(SerializationConfig.Feature.INDENT_OUTPUT, true); |
| mapper.writeValue(writer, structure); |
| |
| response.setStatus(HttpServletResponse.SC_OK); |
| |
| } |
| |
| private Map<String, Object> generateStructure(ConfiguredObject object, Class<? extends ConfiguredObject> clazz) |
| { |
| Map<String, Object> structure = new LinkedHashMap<String, Object>(); |
| structure.put("id", object.getId()); |
| structure.put("name", object.getName()); |
| |
| for(Class<? extends ConfiguredObject> childClass : Model.getInstance().getChildTypes(clazz)) |
| { |
| Collection<? extends ConfiguredObject> children = object.getChildren(childClass); |
| if(children != null) |
| { |
| List<Map<String, Object>> childObjects = new ArrayList<Map<String, Object>>(); |
| |
| for(ConfiguredObject child : children) |
| { |
| childObjects.add(generateStructure(child, childClass)); |
| } |
| |
| if(!childObjects.isEmpty()) |
| { |
| structure.put(pluralize(childClass),childObjects); |
| } |
| } |
| } |
| |
| return structure; |
| } |
| |
| private String pluralize(Class<? extends ConfiguredObject> childClass) |
| { |
| String name = childClass.getSimpleName().toLowerCase(); |
| return name + (name.endsWith("s") ? "es" : "s"); |
| } |
| } |