/*
* Copyright 2014 by SCSK Corporation.
*
* This file is part of PrimeCloud Controller(TM).
*
* PrimeCloud Controller(TM) is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* PrimeCloud Controller(TM) 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 for more details.
*
* You should have received a copy of the GNU General Public License
* along with PrimeCloud Controller(TM). If not, see <http://www.gnu.org/licenses/>.
*/
package jp.primecloud.auto.util;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.util.ArrayList;
import java.util.List;
import jp.primecloud.auto.exception.AutoException;
/**
* <p>
* OSのコマンドを実行するためのユーティリティClassです。
* </p>
*
*/
public class CommandUtils {
private CommandUtils() {
}
/**
* TODO: メソッドコメントを記述
*
* @param commands
* @return
*/
public static CommandResult execute(List<String> commands) {
return execute(commands, 10000);
}
/**
* TODO: メソッドコメントを記述
*
* @param commands
* @param timeout
* @return
*/
public static CommandResult execute(List<String> commands, long timeout) {
return execute(commands, null, timeout);
}
/**
* TODO: メソッドコメントを記述
*
* @param commands
* @param stdins
* @return
*/
public static CommandResult execute(List<String> commands, List<String> stdins) {
return execute(commands, stdins, 10000);
}
/**
* TODO: メソッドコメントを記述
*
* @param commands
* @param stdins
* @param timeout
* @return
*/
public static CommandResult execute(List<String> commands, List<String> stdins, long timeout) {
try {
return executeCommand(commands, stdins, timeout);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
protected static CommandResult executeCommand(List<String> commands, List<String> stdins, long timeout)
throws IOException {
// Process開始
ProcessBuilder builder = new ProcessBuilder(commands);
builder.redirectErrorStream(true);
Process process = builder.start();
// WatchDogタイマー実行
WatchDog watchDog = new WatchDog(process, timeout);
Thread thread = new Thread(watchDog);
thread.start();
// 標準入力へ書き込み
if (stdins != null && stdins.size() > 0) {
OutputStream out = process.getOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(out));
for (String stdin : stdins) {
writer.write(stdin);
writer.newLine();
}
closeQuietly(writer);
closeQuietly(out);
}
// プロセス終了まで待機
try {
process.waitFor();
thread.interrupt();
} catch (InterruptedException ignore) {
}
// タイムアウト発生時
if (watchDog.isTimeout) {
AutoException exception = new AutoException("ECOMMON-000301", commands);
exception.addDetailInfo("stdins=" + stdins);
throw exception;
}
// 標準出力の読み込み
InputStream in = process.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(in));
List<String> stdouts = new ArrayList<String>();
String line;
while ((line = reader.readLine()) != null) {
stdouts.add(line);
}
closeQuietly(reader);
closeQuietly(in);
// 実行結果
CommandResult result = new CommandResult();
result.setExitValue(process.exitValue());
result.setStdouts(stdouts);
return result;
}
protected static void closeQuietly(Closeable closeable) {
if (closeable != null) {
try {
closeable.close();
} catch (IOException ignore) {
}
}
}
public static class CommandResult {
private List<String> stdouts;
private int exitValue;
public List<String> getStdouts() {
return stdouts;
}
public void setStdouts(List<String> stdouts) {
this.stdouts = stdouts;
}
public int getExitValue() {
return exitValue;
}
public void setExitValue(int exitValue) {
this.exitValue = exitValue;
}
}
protected static class WatchDog implements Runnable {
protected Process process;
protected long timeout;
protected boolean isTimeout;
public WatchDog(Process process, long timeout) {
this.process = process;
this.timeout = timeout;
isTimeout = false;
}
public void run() {
try {
Thread.sleep(timeout);
// タイムアウト時
process.destroy();
isTimeout = true;
} catch (InterruptedException ignore) {
}
}
}
}