jvmfwk/plugins/sunmajor/javaenvsetup/javaldx.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include "sal/main.h"
  25 #include "sal/types.h"
  26 #include "osl/thread.h"
  27 #include "rtl/ustring.hxx"
  28 #include "rtl/byteseq.hxx"
  29 #include "jvmfwk/framework.h"
  30
  31
  32 static bool hasOption(char const * szOption, int argc, char** argv);
  33 static OString getLD_LIBRARY_PATH(const rtl::ByteSequence & vendorData);
  34 static bool findAndSelect(JavaInfo**);
  35
  36 #define HELP_TEXT    \
  37 "\njavaldx is necessary to make Java work on some UNIX platforms." \
  38 "It prints a string to std out that consists of directories which " \
  39 "have to be included into the LD_LIBRARY_PATH variable.The setting of " \
  40 "the variable usually occurs in a shell script that runs javaldx.\n" \
  41 "The directories are from the chosen java installation. \n" \
  42 "Options are: \n"\
  43 "--help or -h\n"
  44
  45 SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
  46 {
  47     try
  48     {
  49         if( hasOption("--help",argc, argv) || hasOption("-h", argc, argv))
  50         {
  51             fprintf(stdout, HELP_TEXT);// default
  52             return 0;
  53         }
  54         javaFrameworkError errcode = JFW_E_NONE;
  55         sal_Bool bEnabled = sal_False;
  56         errcode = jfw_getEnabled( & bEnabled);
  57         if (errcode == JFW_E_NONE && bEnabled == sal_False)
  58         {
  59                 //Do not do any preparation because that may only slow startup time.
  60             return 0;
  61         }
  62         else if (errcode != JFW_E_NONE && errcode != JFW_E_DIRECT_MODE)
  63         {
  64             fprintf(stderr,"javaldx failed!\n");
  65             return -1;
  66         }
  67
  68         JavaInfo * pInfo = NULL;
  69         errcode = jfw_getSelectedJRE( & pInfo);
  70
  71         if (errcode != JFW_E_NONE && errcode != JFW_E_INVALID_SETTINGS)
  72         {
  73             fprintf(stderr,"javaldx failed!\n");
  74             return -1;
  75         }
  76
  77         if (pInfo == NULL)
  78         {
  79             if (!findAndSelect(&pInfo))
  80                 return -1;
  81         }
  82         else
  83         {
  84             //check if the JRE was not uninstalled
  85             sal_Bool bExist = sal_False;
  86             errcode = jfw_existJRE(pInfo, &bExist);
  87             if (errcode == JFW_E_NONE)
  88             {
  89                 if (!bExist && !findAndSelect(&pInfo))
  90                     return -1;
  91             }
  92             else
  93             {
  94                 fprintf(stderr, "javaldx: Could not determine if JRE still exist\n");
  95                 return -1;
  96             }
  97         }
  98
  99         OString sPaths = getLD_LIBRARY_PATH(pInfo->arVendorData);
 100         fprintf(stdout, "%s\n", sPaths.getStr());
 101         jfw_freeJavaInfo(pInfo);
 102     }
 103     catch (const std::exception&)
 104     {
 105         fprintf(stderr,"javaldx failed!\n");
 106         return -1;
 107     }
 108
 109     return 0;
 110 }
 111
 112 OString getLD_LIBRARY_PATH(const rtl::ByteSequence & vendorData)
 113 {
 114     const sal_Unicode* chars = reinterpret_cast<sal_Unicode const *>(vendorData.getConstArray());
 115     sal_Int32 len = vendorData.getLength();
 116     OUString sData(chars, len / 2);
 117     //the runtime lib is on the first line
 118     sal_Int32 index = 0;
 119     OUString aToken = sData.getToken( 1, '\n', index);
 120
 121     OString paths =
 122         OUStringToOString(aToken, osl_getThreadTextEncoding());
 123     return paths;
 124 }
 125
 126 static bool hasOption(char const * szOption, int argc, char** argv)
 127 {
 128     bool retVal= false;
 129     for(sal_Int16 i= 1; i < argc; i++)
 130     {
 131         if( ! strcmp(argv[i], szOption))
 132         {
 133             retVal= true;
 134             break;
 135         }
 136     }
 137     return retVal;
 138 }
 139
 140 static bool findAndSelect(JavaInfo ** ppInfo)
 141 {
 142     javaFrameworkError errcode = jfw_findAndSelectJRE(ppInfo);
 143     if (errcode == JFW_E_NO_JAVA_FOUND)
 144     {
 145         fprintf(stderr,"javaldx: Could not find a Java Runtime Environment!\n");
 146         return false;
 147     }
 148     else if (errcode != JFW_E_NONE && errcode != JFW_E_DIRECT_MODE)
 149     {
 150         fprintf(stderr,"javaldx failed!\n");
 151         return false;
 152     }
 153     return true;
 154 }
 155
 156
 157
 158 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */