148 lines
4.8 KiB
Java
148 lines
4.8 KiB
Java
/*
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* Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* The Original Code is HAT. The Initial Developer of the
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* Original Code is Bill Foote, with contributions from others
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* at JavaSoft/Sun.
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*/
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package com.sun.tools.hat.internal.server;
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import java.util.Vector;
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import com.sun.tools.hat.internal.model.*;
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import com.sun.tools.hat.internal.util.ArraySorter;
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import com.sun.tools.hat.internal.util.Comparer;
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/**
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*
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* @author Bill Foote
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*/
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class RootsQuery extends QueryHandler {
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private boolean includeWeak;
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public RootsQuery(boolean includeWeak) {
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this.includeWeak = includeWeak;
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}
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public void run() {
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long id = parseHex(query);
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JavaHeapObject target = snapshot.findThing(id);
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if (target == null) {
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startHtml("Object not found for rootset");
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error("object not found");
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endHtml();
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return;
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}
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if (includeWeak) {
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startHtml("Rootset references to " + target
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+ " (includes weak refs)");
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} else {
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startHtml("Rootset references to " + target
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+ " (excludes weak refs)");
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}
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out.flush();
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ReferenceChain[] refs
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= snapshot.rootsetReferencesTo(target, includeWeak);
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ArraySorter.sort(refs, new Comparer() {
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public int compare(Object lhs, Object rhs) {
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ReferenceChain left = (ReferenceChain) lhs;
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ReferenceChain right = (ReferenceChain) rhs;
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Root leftR = left.getObj().getRoot();
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Root rightR = right.getObj().getRoot();
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int d = leftR.getType() - rightR.getType();
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if (d != 0) {
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return -d; // More interesting values are *higher*
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}
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return left.getDepth() - right.getDepth();
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}
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});
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out.print("<h1>References to ");
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printThing(target);
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out.println("</h1>");
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int lastType = Root.INVALID_TYPE;
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for (int i= 0; i < refs.length; i++) {
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ReferenceChain ref = refs[i];
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Root root = ref.getObj().getRoot();
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if (root.getType() != lastType) {
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lastType = root.getType();
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out.print("<h2>");
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print(root.getTypeName() + " References");
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out.println("</h2>");
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}
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out.print("<h3>");
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printRoot(root);
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if (root.getReferer() != null) {
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out.print("<small> (from ");
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printThingAnchorTag(root.getReferer().getId());
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print(root.getReferer().toString());
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out.print(")</a></small>");
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}
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out.print(" :</h3>");
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while (ref != null) {
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ReferenceChain next = ref.getNext();
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JavaHeapObject obj = ref.getObj();
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print("--> ");
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printThing(obj);
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if (next != null) {
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print(" (" +
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obj.describeReferenceTo(next.getObj(), snapshot)
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+ ":)");
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}
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out.println("<br>");
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ref = next;
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}
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}
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out.println("<h2>Other queries</h2>");
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if (includeWeak) {
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printAnchorStart();
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out.print("roots/");
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printHex(id);
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out.print("\">");
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out.println("Exclude weak refs</a><br>");
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endHtml();
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}
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if (!includeWeak) {
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printAnchorStart();
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out.print("allRoots/");
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printHex(id);
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out.print("\">");
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out.println("Include weak refs</a><br>");
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}
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}
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}
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