Mercurial > hg > release > thermostat-1.0
view vm-heap-analysis/command/src/main/java/com/redhat/thermostat/vm/heap/analysis/command/internal/ShowHeapHistogramCommand.java @ 1412:a0592d702416
Update copyright year in release branch.
reviewed-by: neugens
review-thread: http://icedtea.classpath.org/pipermail/thermostat/2014-June/009965.html
PR1821
author | Jon VanAlten <jon.vanalten@redhat.com> |
---|---|
date | Tue, 03 Jun 2014 11:55:56 -0600 |
parents | de36c4b57bb4 |
children |
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/* * Copyright 2012-2014 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.vm.heap.analysis.command.internal; import java.io.PrintStream; import org.osgi.framework.BundleContext; import org.osgi.framework.FrameworkUtil; import org.osgi.framework.ServiceReference; import com.redhat.thermostat.common.cli.AbstractCommand; import com.redhat.thermostat.common.cli.Arguments; import com.redhat.thermostat.common.cli.CommandContext; import com.redhat.thermostat.common.cli.CommandException; import com.redhat.thermostat.common.cli.TableRenderer; import com.redhat.thermostat.shared.locale.Translate; import com.redhat.thermostat.vm.heap.analysis.command.locale.LocaleResources; import com.redhat.thermostat.vm.heap.analysis.common.HeapDAO; import com.redhat.thermostat.vm.heap.analysis.common.HistogramRecord; import com.redhat.thermostat.vm.heap.analysis.common.ObjectHistogram; import com.redhat.thermostat.vm.heap.analysis.common.model.HeapInfo; public class ShowHeapHistogramCommand extends AbstractCommand { private static final Translate<LocaleResources> translator = LocaleResources.createLocalizer(); private final BundleContext context; public ShowHeapHistogramCommand() { this(FrameworkUtil.getBundle(ShowHeapHistogramCommand.class).getBundleContext()); } ShowHeapHistogramCommand(BundleContext context) { this.context = context; } @Override public void run(CommandContext ctx) throws CommandException { ServiceReference ref = context.getServiceReference(HeapDAO.class.getName()); if (ref == null) { throw new CommandException(translator.localize(LocaleResources.HEAP_SERVICE_UNAVAILABLE)); } HeapDAO heapDAO = (HeapDAO) context.getService(ref); try { run(ctx, heapDAO); } finally { context.ungetService(ref); } } private void run(CommandContext ctx, HeapDAO heapDAO) throws CommandException { Arguments args = ctx.getArguments(); String heapId = args.getArgument("heapId"); HeapInfo heapInfo = heapDAO.getHeapInfo(heapId); if (heapInfo == null) { throw new HeapNotFoundException(heapId); } ObjectHistogram histogram = heapDAO.getHistogram(heapInfo); if (histogram == null) { ctx.getConsole().getOutput().println(translator.localize(LocaleResources.ERROR_READING_HISTOGRAM_MESSAGE, heapId).getContents()); return; } else { printHeapHistogram(histogram, ctx.getConsole().getOutput()); } } private void printHeapHistogram(ObjectHistogram histogram, PrintStream out) { TableRenderer table = new TableRenderer(3); table.printLine(translator.localize(LocaleResources.TABLE_CLASS_NAME).getContents(), translator.localize(LocaleResources.TABLE_NUMBER_INSTANCES).getContents(), translator.localize(LocaleResources.TABLE_TOTAL_SIZE).getContents()); for (HistogramRecord rec : histogram.getHistogram()) { table.printLine(rec.getClassname(), String.valueOf(rec.getNumberOf()), String.valueOf(rec.getTotalSize())); } table.render(out); } }