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 org.apache.oozie.service.Services; 021 022import javax.servlet.ServletContextListener; 023import javax.servlet.ServletContextEvent; 024 025/** 026 * Webapp context listener that initializes Oozie {@link Services}. 027 */ 028public class ServicesLoader implements ServletContextListener { 029 private static Services services; 030 private static boolean sslEnabled = false; 031 032 /** 033 * Initialize Oozie services. 034 * 035 * @param event context event. 036 */ 037 public void contextInitialized(ServletContextEvent event) { 038 try { 039 String ssl = event.getServletContext().getInitParameter("ssl.enabled"); 040 if (ssl != null) { 041 sslEnabled = true; 042 } 043 044 services = new Services(); 045 services.init(); 046 } 047 catch (Throwable ex) { 048 System.out.println(); 049 System.out.println("ERROR: Oozie could not be started"); 050 System.out.println(); 051 System.out.println("REASON: " + ex.toString()); 052 System.out.println(); 053 System.out.println("Stacktrace:"); 054 System.out.println("-----------------------------------------------------------------"); 055 ex.printStackTrace(System.out); 056 System.out.println("-----------------------------------------------------------------"); 057 System.out.println(); 058 System.exit(1); 059 } 060 } 061 062 /** 063 * Destroy Oozie services. 064 * 065 * @param event context event. 066 */ 067 public void contextDestroyed(ServletContextEvent event) { 068 services.destroy(); 069 } 070 071 public static boolean isSSLEnabled() { 072 return sslEnabled; 073 } 074}