Mercurial > hg > release > thermostat-1.0
view vm-heap-analysis/command/src/main/java/com/redhat/thermostat/vm/heap/analysis/command/internal/ObjectInfoCommand.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 | edb423d5d5a0 |
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 java.util.Enumeration; 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.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.HeapDump; import com.sun.tools.hat.internal.model.JavaClass; import com.sun.tools.hat.internal.model.JavaField; import com.sun.tools.hat.internal.model.JavaHeapObject; import com.sun.tools.hat.internal.model.JavaHeapObjectVisitor; import com.sun.tools.hat.internal.model.Snapshot; public class ObjectInfoCommand extends AbstractCommand { private static final Translate<LocaleResources> translator = LocaleResources.createLocalizer(); private final BundleContext context; private Snapshot snapshot; public ObjectInfoCommand() { this(FrameworkUtil.getBundle(ObjectInfoCommand.class).getBundleContext()); } ObjectInfoCommand(BundleContext context) { this.context = context; } @Override public void run(CommandContext ctx) throws CommandException { ServiceReference heapDaoRef = context.getServiceReference(HeapDAO.class.getName()); if (heapDaoRef == null) { throw new CommandException(translator.localize(LocaleResources.HEAP_SERVICE_UNAVAILABLE)); } HeapDAO heapDao = (HeapDAO) context.getService(heapDaoRef); try { run(ctx, heapDao); } finally { context.ungetService(heapDaoRef); } } private void run(CommandContext ctx, HeapDAO heapDao) throws CommandException { ObjectCommandHelper objCmdHelper = new ObjectCommandHelper(ctx, heapDao); HeapDump heapDump = objCmdHelper.getHeapDump(); snapshot = heapDump.getSnapshot(); JavaHeapObject obj = objCmdHelper.getJavaHeapObject(); TableRenderer table = new TableRenderer(2); table.printLine(translator.localize(LocaleResources.COMMAND_OBJECT_INFO_OBJECT_ID).getContents(), obj.getIdString()); table.printLine(translator.localize(LocaleResources.COMMAND_OBJECT_INFO_TYPE).getContents(), obj.getClazz().getName()); table.printLine(translator.localize(LocaleResources.COMMAND_OBJECT_INFO_SIZE).getContents(), String.valueOf(obj.getSize()) + " bytes"); table.printLine(translator.localize(LocaleResources.COMMAND_OBJECT_INFO_HEAP_ALLOCATED).getContents(), String.valueOf(obj.isHeapAllocated())); table.printLine(translator.localize(LocaleResources.COMMAND_OBJECT_INFO_REFERENCES).getContents(), ""); printReferences(table, obj); table.printLine(translator.localize(LocaleResources.COMMAND_OBJECT_INFO_REFERRERS).getContents(), ""); printReferrers(table, obj); PrintStream out = ctx.getConsole().getOutput(); table.render(out); } private void printReferences(final TableRenderer table, final JavaHeapObject obj) { JavaHeapObjectVisitor v = new JavaHeapObjectVisitor() { @Override public void visit(JavaHeapObject ref) { table.printLine("", describeReference(obj, ref) + " -> " + PrintObjectUtils.objectToString(ref)); } @Override public boolean mightExclude() { return false; } @Override public boolean exclude(JavaClass arg0, JavaField arg1) { return false; } }; obj.visitReferencedObjects(v); } private void printReferrers(TableRenderer table, JavaHeapObject obj) { Enumeration<?> referrers = obj.getReferers(); while (referrers.hasMoreElements()) { JavaHeapObject ref = (JavaHeapObject) referrers.nextElement(); table.printLine("", PrintObjectUtils.objectToString(ref) + " -> " + describeReference(ref, obj)); } } private String describeReference(JavaHeapObject from, JavaHeapObject to) { return "[" + from.describeReferenceTo(to, snapshot) + "]"; } }