/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
 *
 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
 * Other names may be trademarks of their respective owners.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common
 * Development and Distribution License("CDDL") (collectively, the
 * "License"). You may not use this file except in compliance with the
 * License. You can obtain a copy of the License at
 * http://www.netbeans.org/cddl-gplv2.html
 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
 * specific language governing permissions and limitations under the
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 * Notice in each file and include the License file at
 * nbbuild/licenses/CDDL-GPL-2-CP.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the GPL Version 2 section of the License file that
 * accompanied this code. If applicable, add the following below the
 * License Header, with the fields enclosed by brackets [] replaced by
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 *
 * Contributor(s):
 * The Original Software is NetBeans. The Initial Developer of the Original
 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
 * Microsystems, Inc. All Rights Reserved.
 *
 * If you wish your version of this file to be governed by only the CDDL
 * or only the GPL Version 2, indicate your decision by adding
 * "[Contributor] elects to include this software in this distribution
 * under the [CDDL or GPL Version 2] license." If you do not indicate a
 * single choice of license, a recipient has the option to distribute
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 * However, if you add GPL Version 2 code and therefore, elected the GPL
 * Version 2 license, then the option applies only if the new code is
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 */

package org.netbeans.lib.profiler.heap;

import java.util.Collections;
import java.util.List;


/**
 *
 * @author Tomas Hurka
 */
class ClassDumpInstance implements Instance {
    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    ClassDump classDump;

    //~ Constructors -------------------------------------------------------------------------------------------------------------

    ClassDumpInstance(ClassDump cls) {
        classDump = cls;
    }

    //~ Methods ------------------------------------------------------------------------------------------------------------------

    public List getFieldValues() {
        return Collections.EMPTY_LIST;
    }

    public boolean isGCRoot() {
        return classDump.getHprof().getGCRoot(this) != null;
    }

    public long getInstanceId() {
        return classDump.getJavaClassId();
    }

    public int getInstanceNumber() {
        return classDump.getHprof().idToOffsetMap.get(getInstanceId()).getIndex();
    }

    public JavaClass getJavaClass() {
        return classDump.classDumpSegment.java_lang_Class;
    }

    public Instance getNearestGCRootPointer() {
        return classDump.getHprof().getNearestGCRootPointer(this);
    }

    public int getReachableSize() {
        return 0;
    }

    public List getReferences() {
        return classDump.getReferences();
    }

    public int getRetainedSize() {
        return classDump.getHprof().getRetainedSize(this);
    }

    public int getSize() {
        return getJavaClass().getInstanceSize();
    }

    public List getStaticFieldValues() {
        return getJavaClass().getStaticFieldValues();
    }

    public Object getValueOfField(String name) {
        return null;
    }

    public boolean equals(Object obj) {
        if (obj instanceof ClassDumpInstance) {
            return classDump.equals(((ClassDumpInstance) obj).classDump);
        } else {
            return false;
        }
    }

    public int hashCode() {
        return classDump.hashCode();
    }
}
