package org.kne.cloud.network;

import java.io.IOException;
import java.nio.channels.ReadableByteChannel;
import java.nio.channels.WritableByteChannel;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

import org.kne.cloud.network.klalb.KLALBPacket;
import org.kne.debug.TimeDebugger;

public abstract class NetworkPacket implements Comparable<NetworkPacket>{
	private static final boolean debugPassport=false;
	
	public static final ByteBufferAllocator bufferAllocator=new ByteBufferAllocator(true);
	
	//public static final ByteArrayPool dataarraypool_65535=new ByteArrayPool(10000, 65535);
			
	//public static final ByteBufferPool databufferpool_65535=new ByteBufferPool(10000, 65535,false);

	//public static final ByteBufferPool databufferpool_2048=new ByteBufferPool(10000, 2048,false);

	//public static final ByteBufferPool databufferpool_40=new ByteBufferPool(10000, 40,false);
	
	
	
	private final TimeDebugger passport;
	{
		if(debugPassport) {
			passport=new TimeDebugger();
			passport.putTime(getClass().getSimpleName()+ "_create");
		}else {
			passport=null;
		}
	}
	
	public final void putTimePassport(String label) {
		if(passport!=null) {
			passport.putTime(label);
		}
	}
	
	public final void printPassport() {
		if(passport!=null) {
			passport.printWithTimeFilter(100000000L);
		}
			
	}
	
	

	public abstract long getTotalLength();
	
	public long getPriority() {
		return priority;
	}
	public void setPriority(long priority) {
		this.priority = priority;
	}
	public long getSendseq() {
		return sendseq;
	}

	private long priority;
	private long sendseq;
	private static final AtomicLong seqgen=new AtomicLong();
	
	@Override
	public int compareTo(NetworkPacket o) {
		if(priority>o.priority) {
			return 1;
		}else if(priority<o.priority){
			return -1;
		}else {
			if(sendseq>o.sendseq) {
				return 1;
			}else if(sendseq<o.sendseq){
				return -1;
			}else {
				return 0;
			}
		}
	}
	
	
	public void genseq() {
		this.sendseq=seqgen.getAndIncrement();
	}
	
	public abstract void writeToChannel(WritableByteChannel dto) throws IOException ;
	public abstract void readFromChannel(ReadableByteChannel din,long length) throws IOException;
	public void readFromChannel(ReadableByteChannel din) throws IOException{
		readFromChannel(din,-1);
	}
	protected abstract boolean needEndPosition();
}