Mercurial > hg > release > thermostat-0.5
view client/cli/src/main/java/com/redhat/thermostat/client/cli/internal/VMStatCommand.java @ 894:0ba74f790a8a
Create VM Memory agent and common bundles
This commit extracts VM Memory data collection from SystemBackend and
related classes into a vm-memory-agent bundle. It also moves the
VmMemoryStatDAO from common-core into a vm-memory-common bundle that
registers the DAO once Storage is available. This also removes the DAO
from DAOFactory.
This also temporarily adds the vm-memory-common bundle as a dependency
to client-cli until my later dynamic vm-stat patch.
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2013-January/004995.html
author | Elliott Baron <ebaron@redhat.com> |
---|---|
date | Mon, 07 Jan 2013 15:50:03 -0500 |
parents | 9e6bcfc40ea1 |
children | 1e51015e63e5 |
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/* * 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.client.cli.internal; 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.ApplicationService; import com.redhat.thermostat.common.Timer; 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.VmRef; import com.redhat.thermostat.common.locale.Translate; import com.redhat.thermostat.common.utils.LoggingUtils; import com.redhat.thermostat.common.utils.OSGIUtils; import com.redhat.thermostat.vm.cpu.common.VmCpuStatDAO; import com.redhat.thermostat.vm.memory.common.VmMemoryStatDAO; public class VMStatCommand extends SimpleCommand { private static final Translate<LocaleResources> translator = LocaleResources.createLocalizer(); private static final Logger log = LoggingUtils.getLogger(VMStatCommand.class); private static final String CMD_NAME = "vm-stat"; private OSGIUtils serviceProvider; public VMStatCommand() { this(OSGIUtils.getInstance()); } VMStatCommand(OSGIUtils serviceProvider) { this.serviceProvider = serviceProvider; } @Override public void run(final CommandContext ctx) throws CommandException { VmCpuStatDAO vmCpuStatDAO = serviceProvider.getServiceAllowNull(VmCpuStatDAO.class); if (vmCpuStatDAO == null) { throw new CommandException(translator.localize(LocaleResources.VM_CPU_SERVICE_NOT_AVAILABLE)); } VmMemoryStatDAO vmMemoryStatDAO = serviceProvider.getServiceAllowNull(VmMemoryStatDAO.class); if (vmMemoryStatDAO == null) { throw new CommandException(translator.localize(LocaleResources.VM_MEMORY_SERVICE_NOT_AVAILABLE)); } 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); } serviceProvider.ungetService(VmMemoryStatDAO.class, vmMemoryStatDAO); serviceProvider.ungetService(VmCpuStatDAO.class, vmCpuStatDAO); } private void startContinuousStats(final CommandContext ctx, final VMStatPrinter statPrinter) { final CountDownLatch latch = new CountDownLatch(1); ApplicationService appSvc = serviceProvider.getService(ApplicationService.class); Timer timer = appSvc.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; } }