1 /*
   2  * Copyright (c) 2011, 2019, 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 jdk.jpackage.main;
  27 
  28 import jdk.jpackage.internal.Arguments;
  29 import jdk.jpackage.internal.Log;
  30 import jdk.jpackage.internal.CLIHelp;
  31 import java.io.PrintWriter;
  32 import java.util.ResourceBundle;
  33 
  34 public class Main {
  35 
  36     private static final ResourceBundle bundle = ResourceBundle.getBundle(
  37             "jdk.jpackage.internal.resources.MainResources");
  38 
  39     private static final String version = bundle.getString("MSG_Version")
  40             + " " + System.getProperty("java.version");
  41 
  42     /**
  43      * main(String... args)
  44      * This is the entry point for the jpackage tool.
  45      *
  46      * @param args command line arguments
  47      */
  48     public static void main(String... args) throws Exception {
  49         // Create logger with default system.out and system.err
  50         Log.Logger logger = new Log.Logger(false);
  51         Log.setLogger(logger);
  52 
  53         int status = run(args);
  54         System.exit(status);
  55     }
  56 
  57     /**
  58      * run() - this is the entry point for the ToolProvider API.
  59      *
  60      * @param out output stream
  61      * @param err error output stream
  62      * @param args command line arguments
  63      * @return an exit code. 0 means success, non-zero means an error occurred.
  64      */
  65     public static int run(PrintWriter out, PrintWriter err, String... args)
  66             throws Exception {
  67         // Create logger with provided streams
  68         Log.Logger logger = new Log.Logger(false);
  69         logger.setPrintWriter(out, err);
  70         Log.setLogger(logger);
  71 
  72         int status = run(args);
  73         Log.flush();
  74         return status;
  75     }
  76 
  77     private static int run(String... args) throws Exception {
  78         String[] newArgs = CommandLine.parse(args);
  79         if (newArgs.length == 0) {
  80             CLIHelp.showHelp(true);
  81         } else if (hasHelp(newArgs)){
  82             if (hasVersion(newArgs)) {
  83                 Log.info(version + "\n");
  84             }
  85             CLIHelp.showHelp(false);
  86         } else if (hasVersion(newArgs)) {
  87             Log.info(version);
  88         } else {
  89             try {
  90                 Arguments arguments = new Arguments(newArgs);
  91                 if (!arguments.processArguments()) {
  92                     // processArguments() should log error message if failed.
  93                     return -1;
  94                 }
  95             } catch (Exception e) {
  96                 if (Log.isVerbose()) {
  97                     Log.verbose(e);
  98                 } else {
  99                     Log.error(e.getMessage());
 100                     if (e.getCause() != null && e.getCause() != e) {
 101                         Log.error(e.getCause().getMessage());
 102                     }
 103                 }
 104                 return -1;
 105             }
 106         }
 107 
 108         return 0;
 109     }
 110 
 111     private static boolean hasHelp(String[] args) {
 112         for (String a : args) {
 113             if ("--help".equals(a) || "-h".equals(a)) {
 114                 return true;
 115             }
 116         }
 117         return false;
 118     }
 119 
 120     private static boolean hasVersion(String[] args) {
 121         for (String a : args) {
 122             if ("--version".equals(a)) {
 123                 return true;
 124             }
 125         }
 126         return false;
 127     }
 128 
 129 }