001 /** 002 * Copyright (c) 2010 Yahoo! Inc. All rights reserved. 003 * Licensed under the Apache License, Version 2.0 (the "License"); 004 * you may not use this file except in compliance with the License. 005 * You may obtain a copy of the License at 006 * 007 * http://www.apache.org/licenses/LICENSE-2.0 008 * 009 * Unless required by applicable law or agreed to in writing, software 010 * distributed under the License is distributed on an "AS IS" BASIS, 011 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 012 * See the License for the specific language governing permissions and 013 * limitations under the License. See accompanying LICENSE file. 014 */ 015 package org.apache.oozie.servlet; 016 017 import org.apache.oozie.client.OozieClient; 018 import org.apache.oozie.servlet.JsonRestServlet; 019 import org.json.simple.JSONArray; 020 021 import javax.servlet.ServletException; 022 import javax.servlet.http.HttpServletRequest; 023 import javax.servlet.http.HttpServletResponse; 024 import java.io.IOException; 025 import java.util.Arrays; 026 import java.util.Collections; 027 028 public class VersionServlet extends JsonRestServlet { 029 private static final String INSTRUMENTATION_NAME = "version"; 030 031 private static final ResourceInfo RESOURCE_INFO = 032 new ResourceInfo("", Arrays.asList("GET"), Collections.EMPTY_LIST); 033 034 // private static JSONArray versions = new JSONArray(); 035 036 public VersionServlet() { 037 super(INSTRUMENTATION_NAME, RESOURCE_INFO); 038 // versions.add(OozieClient.WS_PROTOCOL_VERSION_0); 039 // versions.add(OozieClient.WS_PROTOCOL_VERSION); 040 } 041 042 protected void doGet(HttpServletRequest request, HttpServletResponse response) 043 throws ServletException, IOException { 044 JSONArray versions = new JSONArray(); 045 versions.add(OozieClient.WS_PROTOCOL_VERSION_0); 046 versions.add(OozieClient.WS_PROTOCOL_VERSION); 047 sendJsonResponse(response, HttpServletResponse.SC_OK, versions); 048 } 049 }