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.io.IOException;
021    import java.util.Arrays;
022    import java.util.Collections;
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.JsonBean;
030    import org.apache.oozie.client.rest.JsonTags;
031    import org.apache.oozie.client.rest.RestConstants;
032    import org.apache.oozie.service.Services;
033    import org.json.simple.JSONObject;
034    
035    @SuppressWarnings("unchecked")
036    public class V0AdminServlet extends BaseAdminServlet {
037        private static final long serialVersionUID = 1L;
038        private static final String INSTRUMENTATION_NAME = "v0admin";
039        private static final ResourceInfo RESOURCES_INFO[] = new ResourceInfo[6];
040    
041        static {
042            RESOURCES_INFO[0] = new ResourceInfo(RestConstants.ADMIN_STATUS_RESOURCE, Arrays.asList("PUT", "GET"),
043                                                 Arrays.asList(new ParameterInfo(RestConstants.ADMIN_SAFE_MODE_PARAM, Boolean.class, true,
044                                                                                 Arrays.asList("PUT"))));
045            RESOURCES_INFO[1] = new ResourceInfo(RestConstants.ADMIN_OS_ENV_RESOURCE, Arrays.asList("GET"),
046                    Collections.EMPTY_LIST);
047            RESOURCES_INFO[2] = new ResourceInfo(RestConstants.ADMIN_JAVA_SYS_PROPS_RESOURCE, Arrays.asList("GET"),
048                    Collections.EMPTY_LIST);
049            RESOURCES_INFO[3] = new ResourceInfo(RestConstants.ADMIN_CONFIG_RESOURCE, Arrays.asList("GET"),
050                    Collections.EMPTY_LIST);
051            RESOURCES_INFO[4] = new ResourceInfo(RestConstants.ADMIN_INSTRUMENTATION_RESOURCE, Arrays.asList("GET"),
052                    Collections.EMPTY_LIST);
053            RESOURCES_INFO[5] = new ResourceInfo(RestConstants.ADMIN_BUILD_VERSION_RESOURCE, Arrays.asList("GET"),
054                    Collections.EMPTY_LIST);
055        }
056    
057        public V0AdminServlet() {
058            super(INSTRUMENTATION_NAME, RESOURCES_INFO);
059            modeTag = RestConstants.ADMIN_SAFE_MODE_PARAM;
060        }
061    
062        /*
063         * (non-Javadoc)
064         *
065         * @see
066         * org.apache.oozie.servlet.BaseAdminServlet#populateOozieMode(org.json.
067         * simple.JSONObject)
068         */
069        @Override
070        protected void populateOozieMode(JSONObject json) {
071            if (Services.get().getSystemMode() != SYSTEM_MODE.NORMAL) {
072                json.put(JsonTags.OOZIE_SAFE_MODE, true);
073            }
074            else {
075                json.put(JsonTags.OOZIE_SAFE_MODE, false);
076            }
077        }
078    
079        /*
080         * (non-Javadoc)
081         *
082         * @see
083         * org.apache.oozie.servlet.BaseAdminServlet#setOozieMode(javax.servlet.
084         * http.HttpServletRequest, javax.servlet.http.HttpServletResponse,
085         * java.lang.String)
086         */
087        @Override
088        protected void setOozieMode(HttpServletRequest request, HttpServletResponse response, String resourceName)
089                throws XServletException {
090            if (resourceName.equals(RestConstants.ADMIN_STATUS_RESOURCE)) {
091                boolean safeMode = Boolean.parseBoolean(request.getParameter(modeTag));
092                //Services.get().setSafeMode(safeMode);
093                SYSTEM_MODE sysMode = safeMode == true ? SYSTEM_MODE.NOWEBSERVICE : SYSTEM_MODE.NORMAL;
094                System.out.println(modeTag + " DDDD " + sysMode);
095                Services.get().setSystemMode(sysMode);
096                response.setStatus(HttpServletResponse.SC_OK);
097            }
098            else {
099                throw new XServletException(HttpServletResponse.SC_BAD_REQUEST,
100                                            ErrorCode.E0301, resourceName);
101            }
102        }
103    
104        /*
105         * (non-Javadoc)
106         *
107         * @see
108         * org.apache.oozie.servlet.BaseAdminServlet#getQueueDump(org.json.simple
109         * .JSONObject)
110         */
111        @Override
112        protected void getQueueDump(JSONObject json) throws XServletException {
113            throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0301, "cannot get queue dump");
114        }
115    
116        @Override
117        protected JsonBean getJMSConnectionInfo(HttpServletRequest request, HttpServletResponse response) throws XServletException,
118                IOException {
119            throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302, "Not supported in v0");
120        }
121    }