1 /*

     2  * Copyright (c) 1997, 2014, 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 }