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HprofProxy.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
 *
 * 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
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 * http://www.netbeans.org/cddl-gplv2.html
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 * "[Contributor] elects to include this software in this distribution
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 * to extend the choice of license to its licensees as provided above.
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package org.netbeans.lib.profiler.heap;

import java.util.Iterator;
import java.util.Properties;


/**
 *
 * @author Tomas Hurka
 */
00051 class HprofProxy {
    //~ Constructors -------------------------------------------------------------------------------------------------------------

    HprofProxy() {
    }

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

    static Properties getProperties(Instance propertiesInstance) {
        Properties props = new Properties();
        ObjectArrayDump entriesObj = (ObjectArrayDump) propertiesInstance.getValueOfField("table"); // NOI18N
        Iterator enIt = entriesObj.getValues().iterator();

        while (enIt.hasNext()) {
            Instance entry = (Instance) enIt.next();

            for (; entry != null; entry = (Instance) entry.getValueOfField("next")) { // NOI18N

                Instance key = (Instance) entry.getValueOfField("key"); // NOI18N
                Instance val = (Instance) entry.getValueOfField("value"); // NOI18N

                if (key != null) {
                    props.setProperty(getString(key), getString(val));
                }
            }
        }

        return props;
    }

    static String getString(Instance stringInstance) {
        if (stringInstance == null) {
            return "*null*"; // NOI18N
        }
        assert stringInstance.getJavaClass().getName().equals(String.class.getName());

        PrimitiveArrayDump chars = (PrimitiveArrayDump) stringInstance.getValueOfField("value"); // NOI18N
        Integer offset = (Integer) stringInstance.getValueOfField("offset"); // NOI18N
        Integer len = (Integer) stringInstance.getValueOfField("count"); // NOI18N
        char[] charArr = ((PrimitiveArrayDump) chars).getChars(offset.intValue(), len.intValue());

        return new String(charArr).intern();
    }
}

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