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