org.apache.zookeeper.cli.VersionCommand Maven / Gradle / Ivy
/*
* 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
*
* 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.apache.zookeeper.cli;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.zookeeper.Version;
/**
* version command for cli
*/
public class VersionCommand extends CliCommand {
private static Options options = new Options();
private String[] args;
public VersionCommand() {
super("version", "");
}
@Override
public CliCommand parse(String[] cmdArgs) throws CliParseException {
DefaultParser parser = new DefaultParser();
CommandLine cl;
try {
cl = parser.parse(options, cmdArgs);
} catch (ParseException ex) {
throw new CliParseException(ex);
}
args = cl.getArgs();
if (args.length > 1) {
throw new CliParseException(getUsageStr());
}
return this;
}
@Override
public boolean exec() throws CliException {
out.println("ZooKeeper CLI version: " + Version.getFullVersion());
return false;
}
}