/*
* Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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package jdk.incubator.jpackage.internal;
import java.io.IOException;
import java.nio.file.Path;
import java.text.MessageFormat;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.function.BiFunction;
import java.util.function.Function;
import java.util.stream.Stream;
public final class ToolValidator {
ToolValidator(String tool) {
this(Path.of(tool));
}
ToolValidator(Path toolPath) {
this.toolPath = toolPath;
args = new ArrayList<>();
if (Platform.getPlatform() == Platform.LINUX) {
setCommandLine("--version");
}
setToolNotFoundErrorHandler(null);
setToolOldVersionErrorHandler(null);
}
ToolValidator setCommandLine(String... args) {
this.args = List.of(args);
return this;
}
ToolValidator setMinimalVersion(Comparable<String> v) {
minimalVersion = v;
return this;
}
ToolValidator setVersionParser(Function<Stream<String>, String> v) {
versionParser = v;
return this;
}
ToolValidator setToolNotFoundErrorHandler(
BiFunction<String, IOException, ConfigException> v) {
toolNotFoundErrorHandler = v;
return this;
}
ToolValidator setToolOldVersionErrorHandler(BiFunction<String, String, ConfigException> v) {
toolOldVersionErrorHandler = v;
return this;
}
ConfigException validate() {
List<String> cmdline = new ArrayList<>();
cmdline.add(toolPath.toString());
cmdline.addAll(args);
String name = toolPath.getFileName().toString();
try {
ProcessBuilder pb = new ProcessBuilder(cmdline);
AtomicBoolean canUseTool = new AtomicBoolean();
if (minimalVersion == null) {
// No version check.
canUseTool.setPlain(true);
}
String[] version = new String[1];
Executor.of(pb).setOutputConsumer(lines -> {
if (versionParser != null && minimalVersion != null) {
version[0] = versionParser.apply(lines);
if (minimalVersion.compareTo(version[0]) < 0) {
canUseTool.setPlain(true);
}
}
}).execute();
if (!canUseTool.getPlain()) {
if (toolOldVersionErrorHandler != null) {
return toolOldVersionErrorHandler.apply(name, version[0]);
}
return new ConfigException(MessageFormat.format(I18N.getString(
"error.tool-old-version"), name, minimalVersion),
MessageFormat.format(I18N.getString(
"error.tool-old-version.advice"), name,
minimalVersion));
}
} catch (IOException e) {
if (toolNotFoundErrorHandler != null) {
return toolNotFoundErrorHandler.apply(name, e);
}
return new ConfigException(MessageFormat.format(I18N.getString(
"error.tool-not-found"), name, e.getMessage()),
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