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 

    37 /**

    38  *

    39  * @author      Bill Foote

    40  */

    41 

    42 

    43 class ReachableQuery extends QueryHandler {

    44         // We inherit printFullClass from ClassQuery

    45 

    46 

    47     public ReachableQuery() {

    48     }

    49 

    50     public void run() {

    51         startHtml("Objects Reachable From " + query);

    52         long id = parseHex(query);

    53         JavaHeapObject root = snapshot.findThing(id);

    54         ReachableObjects ro = new ReachableObjects(root,

    55                                    snapshot.getReachableExcludes());

    56         // Now, print out the sorted list, but start with root

    57         long totalSize = ro.getTotalSize();

    58         JavaThing[] things = ro.getReachables();

    59         long instances = things.length;

    60 

    61         out.print("<strong>");

    62         printThing(root);

    63         out.println("</strong><br>");

    64         out.println("<br>");

    65         for (int i = 0; i < things.length; i++) {

    66             printThing(things[i]);

    67             out.println("<br>");

    68         }

    69 

    70         printFields(ro.getUsedFields(), "Data Members Followed");

    71         printFields(ro.getExcludedFields(), "Excluded Data Members");

    72         out.println("<h2>Total of " + instances + " instances occupying " + totalSize + " bytes.</h2>");

    73 

    74         endHtml();

    75     }

    76 

    77     private void printFields(String[] fields, String title) {

    78         if (fields.length == 0) {

    79             return;

    80         }

    81         out.print("<h3>");

    82         print(title);

    83         out.println("</h3>");

    84 

    85         for (int i = 0; i < fields.length; i++) {

    86             print(fields[i]);

    87             out.println("<br>");

    88         }

    89     }

    90 }