1 /* 2 * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 27 /* 28 * The Original Code is HAT. The Initial Developer of the 29 * Original Code is Bill Foote, with contributions from others 30 * at JavaSoft/Sun. 31 */ 32 33 package com.sun.tools.hat.internal.server; 34 35 import com.sun.tools.hat.internal.model.*; 36 import java.util.Enumeration; 37 38 /** 39 * 40 * @author Bill Foote 41 */ 42 43 44 class InstancesQuery extends QueryHandler { 45 46 private boolean includeSubclasses; 47 private boolean newObjects; 48 49 public InstancesQuery(boolean includeSubclasses) { 50 this.includeSubclasses = includeSubclasses; 51 } 52 53 public InstancesQuery(boolean includeSubclasses, boolean newObjects) { 54 this.includeSubclasses = includeSubclasses; 55 this.newObjects = newObjects; 56 } 57 58 public void run() { 59 JavaClass clazz = snapshot.findClass(query); 60 String instancesOf; 61 if (newObjects) 62 instancesOf = "New instances of "; 63 else 64 instancesOf = "Instances of "; 65 if (includeSubclasses) { 66 startHtml(instancesOf + query + " (including subclasses)"); 67 } else { 68 startHtml(instancesOf + query); 69 } 70 if (clazz == null) { 71 error("Class not found"); 72 } else { 73 out.print("<strong>"); 74 printClass(clazz); 75 out.print("</strong><br><br>"); 76 Enumeration<JavaHeapObject> objects = clazz.getInstances(includeSubclasses); 77 long totalSize = 0; 78 long instances = 0; 79 while (objects.hasMoreElements()) { 80 JavaHeapObject obj = objects.nextElement(); 81 if (newObjects && !obj.isNew()) 82 continue; 83 printThing(obj); 84 out.println("<br>"); 85 totalSize += obj.getSize(); 86 instances++; 87 } 88 out.println("<h2>Total of " + instances + " instances occupying " + totalSize + " bytes.</h2>"); 89 } 90 endHtml(); 91 } 92 }