/**
* 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 java.io.File;
import java.io.FileReader;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.lang3.StringUtils;
import org.kohsuke.args4j.Option;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Class for command to stop a process.
* Relies on pid written by process, and works on local-host only.
*
*
*/
public class StopProcessCommand extends AbstractBaseAdminCommand implements Command {
private static final Logger LOGGER = LoggerFactory.getLogger(StopProcessCommand.class);
@Option(name = "-controller", required = false, usage = "Stop the PinotController process.")
private boolean _controller = false;
@Option(name = "-server", required = false, usage = "Stop the PinotServer process.")
private boolean _server = false;
@Option(name = "-broker", required = false, usage = "Stop the PinotBroker process.")
private boolean _broker = false;
@Option(name = "-zooKeeper", required = false, usage = "Stop the ZooKeeper process.")
private boolean _zooKeeper = false;
@Option(name = "-kafka", required = false, usage = "Stop the Kafka process.")
private boolean _kafka = false;
@Option(name = "-help", required = false, help = true, aliases = { "-h", "--h", "--help" },
usage = "Stop the PinotServer.")
private boolean _help = false;
public StopProcessCommand() {
}
public StopProcessCommand(boolean noCleapUpRequired) {
super(false);
}
@Override
public String description() {
return "Stop the specified processes.";
}
public StopProcessCommand stopController() {
_controller = true;
return this;
}
public StopProcessCommand stopBroker() {
_broker = true;
return this;
}
public StopProcessCommand stopServer() {
_server = true;
return this;
}
public StopProcessCommand stopZookeeper() {
_zooKeeper = true;
return this;
}
@Override
public boolean execute() throws Exception {
LOGGER.info("Executing command: " + toString());
Map<String, String> processes = new HashMap<String, String>();
String prefix = System.getProperty("java.io.tmpdir") + File.separator;
File tempDir = new File(System.getProperty("java.io.tmpdir"));
if (_server) {
File[] serverFiles = tempDir.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
if (StringUtils.containsIgnoreCase(name, "pinotAdminServer")) {
return true;
}
return false;
}
});
for (File serverFile : serverFiles) {
processes.put(serverFile.getName(), serverFile.getAbsolutePath());
}
}
if (_broker) {
File[] serverFiles = tempDir.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
if (StringUtils.containsIgnoreCase(name, "pinotAdminBroker")) {
return true;
}
return false;
}
});
for (File serverFile : serverFiles) {
processes.put(serverFile.getName(), serverFile.getAbsolutePath());
}
}
if (_controller) {
File[] serverFiles = tempDir.listFiles(new FilenameFilter() {
@Override
public boolean accept(File dir, String name) {
if (StringUtils.containsIgnoreCase(name, "pinotAdminController")) {
return true;
}
return false;
}
});
for (File serverFile : serverFiles) {
processes.put(serverFile.getName(), serverFile.getAbsolutePath());
}
}
if (_zooKeeper) {
processes.put("Zookeeper", prefix + ".zooKeeper.pid");
}
if (_kafka) {
processes.put("Kafka", prefix + ".kafka.pid");
}
boolean ret = true;
for (Map.Entry<String, String> entry : processes.entrySet()) {
try {
stopProcess(entry.getValue());
} catch (Exception e) {
System.out.println("Failed to stop process: " + entry.getKey() + ": " + e);
ret = false;
}
}
return ret;
}
@Override
public boolean getHelp() {
return _help;
}
@Override
public String getName() {
return "StopProcess";
}
@Override
public String toString() {
StringBuilder stringBuilder = new StringBuilder("StopProcess");
if (_controller) {
stringBuilder.append(" -controller");
}
if (_server) {
stringBuilder.append(" -server");
}
if (_broker) {
stringBuilder.append(" -broker");
}
if (_zooKeeper) {
stringBuilder.append(" -zooKeeper");
}
if (_kafka) {
stringBuilder.append(" -kafka");
}
return stringBuilder.toString();
}
@Override
public void cleanup() {
}
private boolean stopProcess(String fileName) throws IOException {
File file = new File(fileName);
FileReader reader = new FileReader(file);
int pid = reader.read();
Runtime.getRuntime().exec("kill " + pid);
reader.close();
file.delete();
return true;
}
}