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HprofGCRoot.java

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package org.netbeans.lib.profiler.heap;

import java.util.HashMap;
import java.util.Map;


/**
 *
 * @author Tomas Hurka
 */
00054 class HprofGCRoot extends HprofObject implements GCRoot {
    //~ Static fields/initializers -----------------------------------------------------------------------------------------------

    static Map kindMap;

    static {
        kindMap = new HashMap();
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_UNKNOWN), GCRoot.UNKNOWN);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_JNI_GLOBAL), GCRoot.JNI_GLOBAL);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_JNI_LOCAL), GCRoot.JNI_LOCAL);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_JAVA_FRAME), GCRoot.JAVA_FRAME);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_NATIVE_STACK), GCRoot.NATIVE_STACK);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_STICKY_CLASS), GCRoot.STICKY_CLASS);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_THREAD_BLOCK), GCRoot.THREAD_BLOCK);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_MONITOR_USED), GCRoot.MONITOR_USED);
        kindMap.put(Integer.valueOf(HprofHeap.ROOT_THREAD_OBJECT), GCRoot.THREAD_OBJECT);
    }

    //~ Instance fields ----------------------------------------------------------------------------------------------------------

    HprofHeap heap;

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

    HprofGCRoot(HprofHeap h, long offset) {
        super(offset);
        heap = h;
    }

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

00085     public Instance getInstance() {
        return heap.getInstanceByID(getInstanceId());
    }

00089     public String getKind() {
        int k = heap.dumpBuffer.get(fileOffset);

        return (String) kindMap.get(Integer.valueOf(k & 0xff));
    }

    long getInstanceId() {
        return heap.dumpBuffer.getID(fileOffset + 1);
    }
}

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