1 /* 2 * Copyright (c) 1998, 2008, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package com.sun.tools.extcheck; 27 28 import java.io.*; 29 30 /** 31 * Main program of extcheck 32 */ 33 34 public final class Main { 35 public static final String INSUFFICIENT = "Insufficient number of arguments"; 36 public static final String MISSING = "Missing <jar file> argument"; 37 public static final String DOES_NOT_EXIST = "Jarfile does not exist: "; 38 public static final String EXTRA = "Extra command line argument: "; 39 40 /** 41 * Terminates with one of the following codes 42 * 1 A newer (or same version) jar file is already installed 43 * 0 No newer jar file was found 44 * -1 An internal error occurred 45 */ 46 public static void main(String args[]) { 47 try { 48 realMain(args); 49 } catch (Exception ex) { 50 System.err.println(ex.getMessage()); 51 System.exit(-1); 52 } 53 } 54 55 public static void realMain(String[] args) throws Exception { 56 if (args.length < 1) { 57 usage(INSUFFICIENT); 58 } 59 int argIndex = 0; 60 boolean verboseFlag = false; 61 if (args[argIndex].equals("-verbose")) { 62 verboseFlag = true; 63 argIndex++; 64 if (argIndex >= args.length) { 65 usage(MISSING); 66 } 67 } 68 String jarName = args[argIndex]; 69 argIndex++; 70 File jarFile = new File(jarName); 71 if (!jarFile.exists()){ 72 usage(DOES_NOT_EXIST + jarName); 73 } 74 if (argIndex < args.length) { 75 usage(EXTRA + args[argIndex]); 76 } 77 ExtCheck jt = ExtCheck.create(jarFile,verboseFlag); 78 boolean result = jt.checkInstalledAgainstTarget(); 79 if (result) { 80 System.exit(0); 81 } else { 82 System.exit(1); 83 } 84 } 85 86 private static void usage(String msg) throws Exception { 87 throw new Exception(msg + "\nUsage: extcheck [-verbose] <jar file>"); 88 } 89 } 90