Mercurial > hg > release > thermostat-0.5
view unix-process-handler/src/main/java/com/redhat/thermostat/service/process/UnixProcessUtilities.java @ 929:ccac9bcabaa0
Update copyright year of source code
review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/005295.html
reviewed-by: vanaltj
author | Mario Torre <neugens.limasoftware@gmail.com> |
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date | Wed, 23 Jan 2013 16:49:27 +0100 |
parents | 5917cd87fdb4 |
children |
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/* * Copyright 2012, 2013 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat 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, or (at your * option) any later version. * * Thermostat 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 Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.service.process; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.util.ArrayList; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; import com.redhat.thermostat.common.tools.ApplicationException; import com.redhat.thermostat.common.tools.ProcessStartException; import com.redhat.thermostat.common.utils.LoggingUtils; public class UnixProcessUtilities implements UNIXProcessHandler { private static final Logger logger = LoggingUtils.getLogger(UnixProcessUtilities.class); private static final UNIXProcessHandler instance = new UnixProcessUtilities(); public static UNIXProcessHandler getInstance() { return instance; } UnixProcessUtilities() {} @Override public void sendSignal(String pid, UNIXSignal signal) { exec("kill -s " + signal.signalName() + " " + pid); } void exec(String command) { Runtime rt = Runtime.getRuntime(); try { rt.exec(command); } catch (IOException e) { logger.log(Level.WARNING, "can't run kill!", e); } } @Override public String getProcessName(String pid) { String result = null; List<String> commandLine = new ArrayList<>(); commandLine.add("ps"); commandLine.add("--no-heading"); commandLine.add("-p"); commandLine.add(pid); try { Process process = createAndRunProcess(commandLine); BufferedReader reader = getProcessOutput(process); result = reader.readLine(); if (result != null) { String [] output = result.split(" "); result = output[output.length - 1]; } } catch (IOException | ApplicationException e) { logger.log(Level.WARNING, "can't run ps!", e); } return result; } public BufferedReader getProcessOutput(Process process) { InputStream in = process.getInputStream(); InputStreamReader isr = new InputStreamReader(in); return new BufferedReader(isr); } public Process createAndRunProcess(List<String> args) throws IOException, ApplicationException { ProcessBuilder builder = new ProcessBuilder(args); Process process = null; try { process = builder.start(); } catch (IOException e) { throw new ProcessStartException(args.get(0), e); } return process; } }