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/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch 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
*
* 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.elasticsearch.bootstrap;
import joptsimple.OptionSet;
import joptsimple.OptionSpec;
import org.elasticsearch.Build;
import org.elasticsearch.cli.ExitCodes;
import org.elasticsearch.cli.SettingCommand;
import org.elasticsearch.cli.Terminal;
import org.elasticsearch.cli.UserError;
import org.elasticsearch.monitor.jvm.JvmInfo;
import java.io.IOException;
import java.util.Arrays;
import java.util.Map;
/**
* This class starts elasticsearch.
*/
class Elasticsearch extends SettingCommand {
private final OptionSpec<Void> versionOption;
private final OptionSpec<Void> daemonizeOption;
private final OptionSpec<String> pidfileOption;
// visible for testing
Elasticsearch() {
super("starts elasticsearch");
// TODO: in jopt-simple 5.0, make this mutually exclusive with all other options
versionOption = parser.acceptsAll(Arrays.asList("V", "version"),
"Prints elasticsearch version information and exits");
daemonizeOption = parser.acceptsAll(Arrays.asList("d", "daemonize"),
"Starts Elasticsearch in the background");
// TODO: in jopt-simple 5.0 this option type can be a Path
pidfileOption = parser.acceptsAll(Arrays.asList("p", "pidfile"),
"Creates a pid file in the specified path on start")
.withRequiredArg();
}
/**
* Main entry point for starting elasticsearch
*/
public static void main(final String[] args) throws Exception {
final Elasticsearch elasticsearch = new Elasticsearch();
int status = main(args, elasticsearch, Terminal.DEFAULT);
if (status != ExitCodes.OK) {
exit(status);
}
}
static int main(final String[] args, final Elasticsearch elasticsearch, final Terminal terminal) throws Exception {
return elasticsearch.main(args, terminal);
}
@Override
protected void execute(Terminal terminal, OptionSet options, Map<String, String> settings) throws Exception {
if (options.nonOptionArguments().isEmpty() == false) {
throw new UserError(ExitCodes.USAGE, "Positional arguments not allowed, found " + options.nonOptionArguments());
}
if (options.has(versionOption)) {
if (options.has(daemonizeOption) || options.has(pidfileOption)) {
throw new UserError(ExitCodes.USAGE, "Elasticsearch version option is mutually exclusive with any other option");
}
terminal.println("Version: " + org.elasticsearch.Version.CURRENT
+ ", Build: " + Build.CURRENT.shortHash() + "/" + Build.CURRENT.date()
+ ", JVM: " + JvmInfo.jvmInfo().version());
return;
}
final boolean daemonize = options.has(daemonizeOption);
final String pidFile = pidfileOption.value(options);
init(daemonize, pidFile, settings);
}
void init(final boolean daemonize, final String pidFile, final Map<String, String> esSettings) {
try {
Bootstrap.init(!daemonize, pidFile, esSettings);
} catch (final Throwable t) {
// format exceptions to the console in a special way
// to avoid 2MB stacktraces from guice, etc.
throw new StartupError(t);
}
}
/**
* Required method that's called by Apache Commons procrun when
* running as a service on Windows, when the service is stopped.
*
* http://commons.apache.org/proper/commons-daemon/procrun.html
*
* NOTE: If this method is renamed and/or moved, make sure to update service.bat!
*/
static void close(String[] args) throws IOException {
Bootstrap.stop();
}
}
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