Mercurial > hg > release > thermostat-1.2
view client/cli/src/main/java/com/redhat/thermostat/client/cli/internal/VMStatCommand.java @ 1660:c6ae78b6f3ac
[Thermostat 1.2] Update copyright year to 2015
Reviewed-by: omajid
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2015-March/013127.html
PR2273
author | Severin Gehwolf <sgehwolf@redhat.com> |
---|---|
date | Wed, 11 Mar 2015 15:07:27 +0100 |
parents | f380c0ac5d57 |
children |
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/* * Copyright 2012-2015 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.ArrayList; import java.util.List; import java.util.concurrent.CopyOnWriteArrayList; import java.util.concurrent.CountDownLatch; import java.util.concurrent.TimeUnit; import java.util.logging.Level; import java.util.logging.Logger; import org.osgi.framework.BundleContext; import org.osgi.framework.FrameworkUtil; import org.osgi.framework.ServiceReference; import org.osgi.util.tracker.ServiceTracker; import com.redhat.thermostat.client.cli.HostVMArguments; import com.redhat.thermostat.client.cli.VMStatPrintDelegate; import com.redhat.thermostat.common.ApplicationService; import com.redhat.thermostat.common.Timer; import com.redhat.thermostat.common.cli.AbstractCommand; import com.redhat.thermostat.common.cli.CommandContext; import com.redhat.thermostat.common.cli.CommandException; import com.redhat.thermostat.common.cli.CommandLineArgumentParseException; import com.redhat.thermostat.common.utils.LoggingUtils; import com.redhat.thermostat.shared.locale.Translate; import com.redhat.thermostat.storage.core.VmRef; public class VMStatCommand extends AbstractCommand { private static final Translate<LocaleResources> translator = LocaleResources.createLocalizer(); private static final Logger log = LoggingUtils.getLogger(VMStatCommand.class); private List<VMStatPrintDelegate> delegates; private BundleContext context; public VMStatCommand() { this(FrameworkUtil.getBundle(VMStatCommand.class).getBundleContext()); } VMStatCommand(BundleContext context) { this.context = context; delegates = new CopyOnWriteArrayList<>(); ServiceTracker tracker = new ServiceTracker(context, VMStatPrintDelegate.class.getName(), null) { public Object addingService(ServiceReference reference) { VMStatPrintDelegate delegate = (VMStatPrintDelegate) super.addingService(reference); delegates.add(delegate); return delegate; }; public void removedService(ServiceReference reference, Object service) { delegates.remove(service); super.removedService(reference, service); }; }; tracker.open(); } @Override public void run(final CommandContext ctx) throws CommandException { long currentTime = System.currentTimeMillis(); long defaultSinceTime = currentTime - TimeUnit.MINUTES.toMillis(10); HostVMArguments hostVMArgs = new HostVMArguments(ctx.getArguments()); VmRef vm = hostVMArgs.getVM(); long sinceTimestamp; String sinceArg = ctx.getArguments().getArgument("since"); try { sinceTimestamp = new SinceTimestampParser(sinceArg, currentTime, defaultSinceTime).parse(); } catch (SinceTimestampParser.InvalidSinceTimestampFormatException e) { throw new CommandLineArgumentParseException(translator.localize(LocaleResources.VM_STAT_INVALID_SINCE_ARGUMENT)); } // Pass a copy of the delegates list to the printer final VMStatPrinter statPrinter = new VMStatPrinter(vm, new ArrayList<>(delegates), ctx.getConsole().getOutput(), sinceTimestamp); 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); ServiceReference ref = context.getServiceReference(ApplicationService.class.getName()); ApplicationService appSvc = (ApplicationService) context.getService(ref); 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. } context.ungetService(ref); } }