001 /* 002 * SonarQube, open source software quality management tool. 003 * Copyright (C) 2008-2014 SonarSource 004 * mailto:contact AT sonarsource DOT com 005 * 006 * SonarQube is free software; you can redistribute it and/or 007 * modify it under the terms of the GNU Lesser General Public 008 * License as published by the Free Software Foundation; either 009 * version 3 of the License, or (at your option) any later version. 010 * 011 * SonarQube is distributed in the hope that it will be useful, 012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014 * Lesser General Public License for more details. 015 * 016 * You should have received a copy of the GNU Lesser General Public License 017 * along with this program; if not, write to the Free Software Foundation, 018 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. 019 */ 020 package org.sonar.process; 021 022 public class Lifecycle { 023 024 public static enum State { 025 INIT, STARTING, STARTED, STOPPING, STOPPED 026 } 027 028 private State state = State.INIT; 029 030 public State getState() { 031 return state; 032 } 033 034 public synchronized boolean tryToMoveTo(State to) { 035 if (state.ordinal() < to.ordinal()) { 036 state = to; 037 return true; 038 } 039 return false; 040 } 041 042 @Override 043 public boolean equals(Object o) { 044 if (this == o) { 045 return true; 046 } 047 if (o == null || getClass() != o.getClass()) { 048 return false; 049 } 050 Lifecycle lifecycle = (Lifecycle) o; 051 return state == lifecycle.state; 052 } 053 054 @Override 055 public int hashCode() { 056 return state.hashCode(); 057 } 058 }