Mercurial > hg > release > thermostat-0.4
view tools/src/main/java/com/redhat/thermostat/tools/cli/VMStatCommand.java @ 652:e88742733601
Move command option definitions into properties file
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2012-September/003493.html
author | Jon VanAlten <vanaltj@gmail.com> |
---|---|
date | Tue, 02 Oct 2012 17:43:39 -0400 |
parents | 205565370bab |
children |
line wrap: on
line source
/* * Copyright 2012 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.tools.cli; import java.io.IOException; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import java.util.logging.Level; import java.util.logging.Logger; import com.redhat.thermostat.common.Timer; import com.redhat.thermostat.common.appctx.ApplicationContext; import com.redhat.thermostat.common.cli.CommandContext; import com.redhat.thermostat.common.cli.CommandException; import com.redhat.thermostat.common.cli.HostVMArguments; import com.redhat.thermostat.common.cli.SimpleCommand; import com.redhat.thermostat.common.dao.DAOFactory; import com.redhat.thermostat.common.dao.VmCpuStatDAO; import com.redhat.thermostat.common.dao.VmMemoryStatDAO; import com.redhat.thermostat.common.dao.VmRef; public class VMStatCommand extends SimpleCommand { private static final Logger log = Logger.getLogger(VMStatCommand.class.getName()); private static final String CMD_NAME = "vm-stat"; @Override public void run(final CommandContext ctx) throws CommandException { DAOFactory daoFactory = ApplicationContext.getInstance().getDAOFactory(); VmCpuStatDAO vmCpuStatDAO = daoFactory.getVmCpuStatDAO(); VmMemoryStatDAO vmMemoryStatDAO = daoFactory.getVmMemoryStatDAO(); HostVMArguments hostVMArgs = new HostVMArguments(ctx.getArguments()); VmRef vm = hostVMArgs.getVM(); final VMStatPrinter statPrinter = new VMStatPrinter(vm, vmCpuStatDAO, vmMemoryStatDAO, ctx.getConsole().getOutput()); statPrinter.printStats(); boolean continuous = ctx.getArguments().hasArgument("continuous"); if (continuous) { startContinuousStats(ctx, statPrinter); } } private void startContinuousStats(final CommandContext ctx, final VMStatPrinter statPrinter) { final CountDownLatch latch = new CountDownLatch(1); Timer timer = ApplicationContext.getInstance().getTimerFactory().createTimer(); timer.setDelay(1); timer.setInitialDelay(1); timer.setSchedulingType(Timer.SchedulingType.FIXED_RATE); timer.setTimeUnit(TimeUnit.SECONDS); timer.setAction(new Runnable() { @Override public void run() { statPrinter.printUpdatedStats(); } }); timer.start(); Thread t = new Thread() { public void run() { try { ctx.getConsole().getInput().read(); } catch (IOException e) { log.log(Level.WARNING, "Unexpected IOException while waiting for user input", e); } finally { latch.countDown(); } } }; t.start(); try { latch.await(); timer.stop(); } catch (InterruptedException e) { // Return immediately. } } @Override public String getName() { return CMD_NAME; } }