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
163
164
165
166
167
168
169
170
171
172
|
// SPDX-License-Identifier: GPL-3.0-only
/*
* Prism Launcher
*
* Copyright (C) 2022 icelimetea <fr3shtea@outlook.com>
* Copyright (C) 2022 TheKodeToad <TheKodeToad@proton.me>
* Copyright (C) 2022 solonovamax <solonovamax@12oclockpoint.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Linking this library statically or dynamically with other modules is
* making a combined work based on this library. Thus, the terms and
* conditions of the GNU General Public License cover the whole
* combination.
*
* As a special exception, the copyright holders of this library give
* you permission to link this library with independent modules to
* produce an executable, regardless of the license terms of these
* independent modules, and to copy and distribute the resulting
* executable under terms of your choice, provided that you also meet,
* for each linked independent module, the terms and conditions of the
* license of that module. An independent module is a module which is
* not derived from or based on this library. If you modify this
* library, you may extend this exception to your version of the
* library, but you are not obliged to do so. If you do not wish to do
* so, delete this exception statement from your version.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2013-2021 MultiMC Contributors
*
* Licensed 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
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.prismlauncher;
import org.prismlauncher.exception.ParseException;
import org.prismlauncher.launcher.Launcher;
import org.prismlauncher.launcher.LauncherFactory;
import org.prismlauncher.utils.Parameters;
import org.prismlauncher.utils.StringUtils;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.nio.charset.StandardCharsets;
import java.util.logging.Level;
import java.util.logging.Logger;
public final class EntryPoint {
private static final Logger LOGGER = Logger.getLogger("EntryPoint");
private EntryPoint() {}
public static void main(String[] args)
{
ExitCode exitCode = listen();
if (exitCode != ExitCode.NORMAL) {
LOGGER.warning("Exiting with " + exitCode);
// noinspection CallToSystemExit
System.exit(exitCode.numericalCode);
}
}
private static PreLaunchAction parseLine(String input, Parameters params) throws ParseException
{
if (input.isEmpty()) // TODO: 2022-11-01 Should we just ignore this?
throw new ParseException("Unexpected empty string! You should not pass empty newlines to stdin.");
if ("launch".equalsIgnoreCase(input))
return PreLaunchAction.LAUNCH;
else if ("abort".equalsIgnoreCase(input))
return PreLaunchAction.ABORT;
else {
String[] pair = StringUtils.splitStringPair(' ', input);
if (pair == null)
throw new ParseException(String.format(
"Could not split input string '%s' by space. All input provided from stdin must be either 'launch', 'abort', or "
+ "in the format '[param name] [param]'.",
input));
params.add(pair[0], pair[1]);
return PreLaunchAction.PROCEED;
}
}
private static ExitCode listen()
{
Parameters parameters = new Parameters();
PreLaunchAction preLaunchAction = PreLaunchAction.PROCEED;
try (BufferedReader reader = new BufferedReader(new InputStreamReader(System.in, StandardCharsets.UTF_8))) {
String line;
while (preLaunchAction == PreLaunchAction.PROCEED) {
// noinspection NestedAssignment
if ((line = reader.readLine()) != null)
preLaunchAction = parseLine(line, parameters);
else
preLaunchAction = PreLaunchAction.ABORT;
}
} catch (IOException | ParseException e) {
LOGGER.log(Level.SEVERE, "Launcher abort due to exception", e);
return ExitCode.ILLEGAL_ARGUMENT;
}
// Main loop
if (preLaunchAction == PreLaunchAction.ABORT) {
LOGGER.info("Launch aborted by the launcher.");
return ExitCode.ABORT;
}
try {
Launcher launcher = LauncherFactory.createLauncher(parameters);
launcher.launch();
return ExitCode.NORMAL;
} catch (IllegalArgumentException e) {
LOGGER.log(Level.SEVERE, "Wrong argument.", e);
return ExitCode.ILLEGAL_ARGUMENT;
} catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException e) {
LOGGER.log(Level.SEVERE, "Caught reflection exception from launcher", e);
return ExitCode.REFLECTION_EXCEPTION;
} catch (Throwable e) {
LOGGER.log(Level.SEVERE, "Exception caught from launcher", e);
return ExitCode.ERROR;
}
}
private enum PreLaunchAction {
PROCEED, LAUNCH, ABORT
}
private enum ExitCode {
NORMAL(0), ABORT(1), ERROR(2), ILLEGAL_ARGUMENT(3), REFLECTION_EXCEPTION(4);
private final int numericalCode;
ExitCode(int numericalCode) { this.numericalCode = numericalCode; }
}
}
|
