File: javaldx.cxx

package info (click to toggle)
libreoffice 1:6.1.5-3
  • links: PTS, VCS
  • area: main
  • in suites: buster, sid
  • size: 2,699,584 kB
  • sloc: cpp: 4,078,558; xml: 324,485; java: 281,935; python: 48,236; ansic: 36,476; perl: 32,383; sh: 13,671; yacc: 10,820; makefile: 9,085; cs: 6,600; lex: 2,184; objc: 1,904; awk: 978; pascal: 949; asm: 866; php: 79; csh: 20; sed: 5
file content (162 lines) | stat: -rw-r--r-- 5,078 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
/* -*- 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 <stdlib.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>


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.
            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;
    OUString aToken = sData.getToken( 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");
        fprintf(stderr,"Please ensure that a JVM and the package libreoffice-java-common\n");
        fprintf(stderr,"is installed.\n");
        fprintf(stderr,"If it is already installed then try removing ~/.config/libreoffice/4/user/config/javasettings_Linux_*.xml\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: */