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 

    36 import com.sun.tools.hat.internal.model.*;

    37 

    38 /**

    39  * Query to show the StackTrace for a given root

    40  *

    41  * @author      Bill Foote

    42  */

    43 

    44 

    45 class RootStackQuery extends QueryHandler {

    46 

    47     public RootStackQuery() {

    48     }

    49 

    50     public void run() {

    51         int index = (int) parseHex(query);

    52         Root root = snapshot.getRootAt(index);

    53         if (root == null) {

    54             error("Root at " + index + " not found");

    55             return;

    56         }

    57         StackTrace st = root.getStackTrace();

    58         if (st == null || st.getFrames().length == 0) {

    59             error("No stack trace for " + root.getDescription());

    60             return;

    61         }

    62         startHtml("Stack Trace for " + root.getDescription());

    63         out.println("<p>");

    64         printStackTrace(st);

    65         out.println("</p>");

    66         endHtml();

    67     }

    68 

    69 }