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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/config.h>
#include <memory>
#include <stdio.h>
#include <string.h>
#include <iostream>
#include <sal/main.h>
#include <sal/types.h>
#include <osl/thread.h>
#include <rtl/ustring.hxx>
#include <rtl/byteseq.hxx>
#include <jvmfwk/framework.hxx>
#include <o3tl/string_view.hxx>
static bool hasOption(char const * szOption, int argc, char** argv);
static OString getLD_LIBRARY_PATH(const rtl::ByteSequence & vendorData);
static bool findAndSelect(std::unique_ptr<JavaInfo>*);
#define HELP_TEXT \
"\njavaldx is necessary to make Java work on some UNIX platforms." \
"It prints a string to std out that consists of directories which " \
"have to be included into the LD_LIBRARY_PATH variable.The setting of " \
"the variable usually occurs in a shell script that runs javaldx.\n" \
"The directories are from the chosen java installation. \n" \
"Options are: \n"\
"--help or -h\n"
SAL_IMPLEMENT_MAIN_WITH_ARGS(argc, argv)
{
try
{
if( hasOption("--help",argc, argv) || hasOption("-h", argc, argv))
{
fprintf(stdout, HELP_TEXT);// default
return 0;
}
bool bEnabled = false;
javaFrameworkError errcode = jfw_getEnabled( & bEnabled);
if (errcode == JFW_E_NONE && !bEnabled)
{
//Do not do any preparation because that may only slow startup time.
fprintf(stdout, "\n");
return 0;
}
else if (errcode != JFW_E_NONE && errcode != JFW_E_DIRECT_MODE)
{
fprintf(stderr,"javaldx failed!\n");
return -1;
}
std::unique_ptr<JavaInfo> aInfo;
errcode = jfw_getSelectedJRE(&aInfo);
if (errcode != JFW_E_NONE && errcode != JFW_E_INVALID_SETTINGS)
{
fprintf(stderr,"javaldx failed!\n");
return -1;
}
if (!aInfo)
{
if (!findAndSelect(&aInfo))
return -1;
}
else
{
//check if the JRE was not uninstalled
bool bExist = false;
errcode = jfw_existJRE(aInfo.get(), &bExist);
if (errcode == JFW_E_NONE)
{
if (!bExist && !findAndSelect(&aInfo))
return -1;
}
else
{
fprintf(stderr, "javaldx: Could not determine if JRE still exist\n");
return -1;
}
}
OString sPaths = getLD_LIBRARY_PATH(aInfo->arVendorData);
fprintf(stdout, "%s\n", sPaths.getStr());
}
catch (const std::exception& e)
{
std::cerr << "javaldx failed! " << e.what() << std::endl;
return -1;
}
return 0;
}
OString getLD_LIBRARY_PATH(const rtl::ByteSequence & vendorData)
{
const sal_Unicode* chars = reinterpret_cast<sal_Unicode const *>(vendorData.getConstArray());
sal_Int32 len = vendorData.getLength();
OUString sData(chars, len / 2);
//the runtime lib is on the first line
sal_Int32 index = 0;
std::u16string_view aToken = o3tl::getToken(sData, 1, '\n', index);
OString paths =
OUStringToOString(aToken, osl_getThreadTextEncoding());
return paths;
}
static bool hasOption(char const * szOption, int argc, char** argv)
{
bool retVal= false;
for(int i= 1; i < argc; i++)
{
if( ! strcmp(argv[i], szOption))
{
retVal= true;
break;
}
}
return retVal;
}
static bool findAndSelect(std::unique_ptr<JavaInfo> * ppInfo)
{
javaFrameworkError errcode = jfw_findAndSelectJRE(ppInfo);
if (errcode == JFW_E_NO_JAVA_FOUND)
{
fprintf(stderr,"javaldx: Could not find a Java Runtime Environment!\n");
return false;
}
else if (errcode != JFW_E_NONE && errcode != JFW_E_DIRECT_MODE)
{
fprintf(stderr,"javaldx failed!\n");
return false;
}
return true;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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