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StackTrace.java

/*
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package org.netbeans.lib.profiler.heap;


/**
 *
 * @author Tomas Hurka
 */
00051 class StackTrace extends HprofObject {
    //~ Instance fields ----------------------------------------------------------------------------------------------------------
    
    private final StackTraceSegment stackTraceSegment;
    
    //~ Constructors -------------------------------------------------------------------------------------------------------------
    
    StackTrace(StackTraceSegment segment, long offset) {
        super(offset);
        stackTraceSegment = segment;
        assert getHprofBuffer().get(offset) == HprofHeap.STACK_TRACE;
    }
    
    //~ Methods ------------------------------------------------------------------------------------------------------------------
    
    long getSerialNumber() {
        return getHprofBuffer().getInt(fileOffset + stackTraceSegment.stackTraceSerialNumberOffset);
    }
    
    long getThreadSerialNumber() {
        return getHprofBuffer().getInt(fileOffset + stackTraceSegment.threadSerialNumberOffset);
    }

    StackFrame[] getStackFrames() {
        HprofByteBuffer buf = getHprofBuffer();
        int frames = buf.getInt(fileOffset + stackTraceSegment.numberOfFramesOffset);
        StackFrame[] fr = new StackFrame[frames];
        long idOffset = fileOffset + stackTraceSegment.framesListOffset;
        StackFrameSegment stackFrameSegment = stackTraceSegment.hprofHeap.getStackFrameSegment();
                
         for (int i=0;i<frames;i++,idOffset+=buf.getIDSize()) {
             long frameID = buf.getID(idOffset);
             fr[i] = stackFrameSegment.getStackFrameByID(frameID);
        }
        return fr;
    }
    
    private HprofByteBuffer getHprofBuffer() {
        return stackTraceSegment.hprofHeap.dumpBuffer;
    }
    
}

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