92 lines · 3.1 KB · Java
RawDownload
/* * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code 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 * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */  /* * The Original Code is HAT. The Initial Developer of the * Original Code is Bill Foote, with contributions from others * at JavaSoft/Sun. */ package com.sun.tools.hat.internal.server; import com.sun.tools.hat.internal.model.*;import java.util.Enumeration; /** * * @author      Bill Foote */  class InstancesQuery extends QueryHandler {     private boolean includeSubclasses;    private boolean newObjects;     public InstancesQuery(boolean includeSubclasses) {        this.includeSubclasses = includeSubclasses;    }     public InstancesQuery(boolean includeSubclasses, boolean newObjects) {        this.includeSubclasses = includeSubclasses;        this.newObjects = newObjects;    }     public void run() {        JavaClass clazz = snapshot.findClass(query);        String instancesOf;        if (newObjects)            instancesOf = "New instances of ";        else            instancesOf = "Instances of ";        if (includeSubclasses) {            startHtml(instancesOf + query + " (including subclasses)");        } else {            startHtml(instancesOf + query);        }        if (clazz == null) {            error("Class not found");        } else {            out.print("<strong>");            printClass(clazz);            out.print("</strong><br><br>");            Enumeration objects = clazz.getInstances(includeSubclasses);            long totalSize = 0;            long instances = 0;            while (objects.hasMoreElements()) {                JavaHeapObject obj = (JavaHeapObject) objects.nextElement();                if (newObjects && !obj.isNew())                    continue;                printThing(obj);                out.println("<br>");                totalSize += obj.getSize();                instances++;            }            out.println("<h2>Total of " + instances + " instances occupying " + totalSize + " bytes.</h2>");        }        endHtml();    }}