/**
* Copyright (C) 2014-2016 LinkedIn Corp. (pinot-core@linkedin.com)
*
* 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 com.linkedin.pinot.tools.admin.command;
import com.linkedin.pinot.tools.Command;
import org.apache.helix.manager.zk.ZkClient;
import org.kohsuke.args4j.Option;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DeleteClusterCommand extends AbstractBaseAdminCommand implements Command {
private static final Logger LOGGER = LoggerFactory.getLogger(DeleteClusterCommand.class);
@Option(name = "-clusterName", required = true, metaVar = "<String>", usage = "Pinot cluster name.")
private String _clusterName = "PinotCluster";
@Option(name = "-zkAddress", required = false, metaVar = "<http>", usage = "Http address of Zookeeper.")
private String _zkAddress = DEFAULT_ZK_ADDRESS;
@Option(name = "-help", required = false, help = true, aliases = { "-h", "--h", "--help" },
usage = "Print this message.")
private boolean _help = false;
@Override
public String toString() {
return ("DeleteCluster -clusterName " + _clusterName + " -zkAddress " + _zkAddress);
}
@Override
public String description() {
return "Remove the Pinot Cluster from Helix.";
}
@Override
public boolean getHelp() {
return _help;
}
@Override
public String getName() {
return "DeleteCluster";
}
@Override
public void cleanup() {
}
public DeleteClusterCommand setClusterName(String clusterName) {
_clusterName = clusterName;
return this;
}
public DeleteClusterCommand setZkAddress(String zkAddress) {
_zkAddress = zkAddress;
return this;
}
@Override
public boolean execute() throws Exception {
LOGGER.info("Connecting to Zookeeper at address: {}", _zkAddress);
ZkClient zkClient = new ZkClient(_zkAddress, 5000);
String helixClusterName = "/" + _clusterName;
LOGGER.info("Executing command: " + toString());
if (!zkClient.exists(helixClusterName)) {
LOGGER.error("Cluster {} does not exist.", _clusterName);
return false;
}
zkClient.deleteRecursive(helixClusterName);
return true;
}
}