001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements. See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership. The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License. You may obtain a copy of the License at
009 *
010 * http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018 package org.apache.oozie.servlet;
019
020 import java.util.Arrays;
021 import java.util.Collections;
022 import java.util.List;
023
024 import javax.servlet.http.HttpServletRequest;
025 import javax.servlet.http.HttpServletResponse;
026
027 import org.apache.oozie.ErrorCode;
028 import org.apache.oozie.client.OozieClient.SYSTEM_MODE;
029 import org.apache.oozie.client.rest.JsonTags;
030 import org.apache.oozie.client.rest.RestConstants;
031 import org.apache.oozie.service.CallableQueueService;
032 import org.apache.oozie.service.Services;
033 import org.json.simple.JSONArray;
034 import org.json.simple.JSONObject;
035
036 public class V1AdminServlet extends BaseAdminServlet {
037
038 private static final long serialVersionUID = 1L;
039 private static final String INSTRUMENTATION_NAME = "v1admin";
040 private static final ResourceInfo RESOURCES_INFO[] = new ResourceInfo[7];
041
042 static {
043 RESOURCES_INFO[0] = new ResourceInfo(RestConstants.ADMIN_STATUS_RESOURCE, Arrays.asList("PUT", "GET"),
044 Arrays.asList(new ParameterInfo(RestConstants.ADMIN_SYSTEM_MODE_PARAM, String.class, true,
045 Arrays.asList("PUT"))));
046 RESOURCES_INFO[1] = new ResourceInfo(RestConstants.ADMIN_OS_ENV_RESOURCE, Arrays.asList("GET"),
047 Collections.EMPTY_LIST);
048 RESOURCES_INFO[2] = new ResourceInfo(RestConstants.ADMIN_JAVA_SYS_PROPS_RESOURCE, Arrays.asList("GET"),
049 Collections.EMPTY_LIST);
050 RESOURCES_INFO[3] = new ResourceInfo(RestConstants.ADMIN_CONFIG_RESOURCE, Arrays.asList("GET"),
051 Collections.EMPTY_LIST);
052 RESOURCES_INFO[4] = new ResourceInfo(RestConstants.ADMIN_INSTRUMENTATION_RESOURCE, Arrays.asList("GET"),
053 Collections.EMPTY_LIST);
054 RESOURCES_INFO[5] = new ResourceInfo(RestConstants.ADMIN_BUILD_VERSION_RESOURCE, Arrays.asList("GET"),
055 Collections.EMPTY_LIST);
056 RESOURCES_INFO[6] = new ResourceInfo(RestConstants.ADMIN_QUEUE_DUMP_RESOURCE, Arrays.asList("GET"),
057 Collections.EMPTY_LIST);
058 }
059
060 public V1AdminServlet() {
061 super(INSTRUMENTATION_NAME, RESOURCES_INFO);
062 modeTag = RestConstants.ADMIN_SYSTEM_MODE_PARAM;
063 }
064
065 /*
066 * (non-Javadoc)
067 *
068 * @see
069 * org.apache.oozie.servlet.BaseAdminServlet#populateOozieMode(org.json.
070 * simple.JSONObject)
071 */
072 @SuppressWarnings("unchecked")
073 @Override
074 protected void populateOozieMode(JSONObject json) {
075 json.put(JsonTags.OOZIE_SYSTEM_MODE, Services.get().getSystemMode().toString());
076 }
077
078 /*
079 * (non-Javadoc)
080 *
081 * @see
082 * org.apache.oozie.servlet.BaseAdminServlet#setOozieMode(javax.servlet.
083 * http.HttpServletRequest, javax.servlet.http.HttpServletResponse,
084 * java.lang.String)
085 */
086 @Override
087 protected void setOozieMode(HttpServletRequest request,
088 HttpServletResponse response, String resourceName)
089 throws XServletException {
090 if (resourceName.equals(RestConstants.ADMIN_STATUS_RESOURCE)) {
091 SYSTEM_MODE sysMode = SYSTEM_MODE.valueOf(request.getParameter(modeTag));
092 Services.get().setSystemMode(sysMode);
093 response.setStatus(HttpServletResponse.SC_OK);
094 }
095 else {
096 throw new XServletException(HttpServletResponse.SC_BAD_REQUEST,
097 ErrorCode.E0301, resourceName);
098 }
099 }
100
101 /**
102 * Get a json array of queue dump and a json array of unique map dump
103 *
104 * @param JSONObject the result json object that contains a JSONArray for the callable dump
105 *
106 * @see
107 * org.apache.oozie.servlet.BaseAdminServlet#getQueueDump(org.json.simple
108 * .JSONObject)
109 */
110 @SuppressWarnings("unchecked")
111 @Override
112 protected void getQueueDump(JSONObject json) throws XServletException {
113 List<String> queueDumpList = Services.get().get(CallableQueueService.class).getQueueDump();
114 JSONArray queueDumpArray = new JSONArray();
115 for (String str: queueDumpList) {
116 JSONObject jObject = new JSONObject();
117 jObject.put(JsonTags.CALLABLE_DUMP, str);
118 queueDumpArray.add(jObject);
119 }
120 json.put(JsonTags.QUEUE_DUMP, queueDumpArray);
121
122 List<String> uniqueDumpList = Services.get().get(CallableQueueService.class).getUniqueDump();
123 JSONArray uniqueDumpArray = new JSONArray();
124 for (String str: uniqueDumpList) {
125 JSONObject jObject = new JSONObject();
126 jObject.put(JsonTags.UNIQUE_ENTRY_DUMP, str);
127 uniqueDumpArray.add(jObject);
128 }
129 json.put(JsonTags.UNIQUE_MAP_DUMP, uniqueDumpArray);
130 }
131
132 }