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 */
018package org.apache.oozie.servlet;
019
020import java.io.IOException;
021import java.util.Arrays;
022import java.util.Collections;
023import java.util.Map;
024
025import javax.servlet.http.HttpServletRequest;
026import javax.servlet.http.HttpServletResponse;
027
028import org.apache.oozie.ErrorCode;
029import org.apache.oozie.client.OozieClient.SYSTEM_MODE;
030import org.apache.oozie.client.rest.JsonBean;
031import org.apache.oozie.client.rest.JsonTags;
032import org.apache.oozie.client.rest.RestConstants;
033import org.apache.oozie.service.Services;
034import org.json.simple.JSONObject;
035
036@SuppressWarnings("unchecked")
037public class V0AdminServlet extends BaseAdminServlet {
038    private static final long serialVersionUID = 1L;
039    private static final String INSTRUMENTATION_NAME = "v0admin";
040    private static final ResourceInfo RESOURCES_INFO[] = new ResourceInfo[6];
041
042    static {
043        RESOURCES_INFO[0] = new ResourceInfo(RestConstants.ADMIN_STATUS_RESOURCE, Arrays.asList("PUT", "GET"),
044                                             Arrays.asList(new ParameterInfo(RestConstants.ADMIN_SAFE_MODE_PARAM, Boolean.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    }
057
058    public V0AdminServlet() {
059        super(INSTRUMENTATION_NAME, RESOURCES_INFO);
060        modeTag = RestConstants.ADMIN_SAFE_MODE_PARAM;
061    }
062
063    /*
064     * (non-Javadoc)
065     *
066     * @see
067     * org.apache.oozie.servlet.BaseAdminServlet#populateOozieMode(org.json.
068     * simple.JSONObject)
069     */
070    @Override
071    protected void populateOozieMode(JSONObject json) {
072        if (Services.get().getSystemMode() != SYSTEM_MODE.NORMAL) {
073            json.put(JsonTags.OOZIE_SAFE_MODE, true);
074        }
075        else {
076            json.put(JsonTags.OOZIE_SAFE_MODE, false);
077        }
078    }
079
080    /*
081     * (non-Javadoc)
082     *
083     * @see
084     * org.apache.oozie.servlet.BaseAdminServlet#setOozieMode(javax.servlet.
085     * http.HttpServletRequest, javax.servlet.http.HttpServletResponse,
086     * java.lang.String)
087     */
088    @Override
089    protected void setOozieMode(HttpServletRequest request, HttpServletResponse response, String resourceName)
090            throws XServletException {
091        if (resourceName.equals(RestConstants.ADMIN_STATUS_RESOURCE)) {
092            boolean safeMode = Boolean.parseBoolean(request.getParameter(modeTag));
093            //Services.get().setSafeMode(safeMode);
094            SYSTEM_MODE sysMode = safeMode == true ? SYSTEM_MODE.NOWEBSERVICE : SYSTEM_MODE.NORMAL;
095            System.out.println(modeTag + " DDDD " + sysMode);
096            Services.get().setSystemMode(sysMode);
097            response.setStatus(HttpServletResponse.SC_OK);
098        }
099        else {
100            throw new XServletException(HttpServletResponse.SC_BAD_REQUEST,
101                                        ErrorCode.E0301, resourceName);
102        }
103    }
104
105    /*
106     * (non-Javadoc)
107     *
108     * @see
109     * org.apache.oozie.servlet.BaseAdminServlet#getQueueDump(org.json.simple
110     * .JSONObject)
111     */
112    @Override
113    protected void getQueueDump(JSONObject json) throws XServletException {
114        throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0301, "cannot get queue dump");
115    }
116
117    @Override
118    protected JsonBean getJMSConnectionInfo(HttpServletRequest request, HttpServletResponse response) throws XServletException,
119            IOException {
120        throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302, "Not supported in v0");
121    }
122
123    @Override
124    protected Map<String, String> getOozieURLs() throws XServletException {
125        throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302, "Not supported in v0");
126    }
127
128    @Override
129    protected void sendMetricsResponse(HttpServletResponse response) throws IOException, XServletException {
130        throw new XServletException(HttpServletResponse.SC_BAD_REQUEST, ErrorCode.E0302, "Not supported in v0");
131    }
132}