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• 1.0.14
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• StackTraceEvent.java

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com.vmlens.trace.agent.bootstrap.event.StackTraceEvent Maven / Gradle / Ivy

package com.vmlens.trace.agent.bootstrap.event;

import java.io.DataOutputStream;



public class StackTraceEvent implements StaticEvent   {

	
	public static final int  MIN_LENGTH = 4;
	
	private final long threadId;
	private final StackTraceElement[] stackTraceElementArray;

	public StackTraceEvent(long threadId ,  StackTraceElement[] stackTraceElementArray) {
	
		this.threadId = threadId;
		this.stackTraceElementArray = stackTraceElementArray.clone();
	}


	
	
	public void serialize(StreamRepository streamRepository)  throws Exception
	{ 
		
         DataOutputStream stream = streamRepository.stackTrace.getStream();
		
		
		
		stream.writeLong ( threadId );
		stream.writeInt( stackTraceElementArray.length   - MIN_LENGTH );
		
		
		for( int i = MIN_LENGTH ; i <  stackTraceElementArray.length  ; i++)
		{
			stream.writeUTF(convertNullToEmptyString (stackTraceElementArray[i].getClassName()));
			stream.writeUTF(convertNullToEmptyString(stackTraceElementArray[i].getMethodName()));
			stream.writeUTF(convertNullToEmptyString(stackTraceElementArray[i].getFileName()));
			stream.writeInt(stackTraceElementArray[i].getLineNumber()); //stackTraceElementArray[i].getLineNumber()
			
			
		}
		
		
	}
	
	
	public String convertNullToEmptyString(String in)
	{
		if( in == null )
		{
			return "";
		}
		else
		{
			return in;
		}
		
		
		
	}
	
	
}