package com.gzzn.omms.msgexchangeapi.service;

import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.ConcurrentLinkedQueue;

import org.springframework.stereotype.Service;

import com.gzzn.omms.msgexchangeapi.entity.msg.SCHD;
import com.gzzn.omms.msgexchangeapi.entity.msg.SCHD.FLTR;

/**
 * 要发到kafka 的航班动态信息，先在这里做缓存。
 * @author zhouxiunai
 *
 */
@Service("msgbufferservice")
public class FltrSendBufferService implements IFltrSendBufferService {
	private static ConcurrentLinkedQueue<SCHD.FLTR> fltrBuffer = new ConcurrentLinkedQueue<SCHD.FLTR>();  
	
	@Override
	public void addFltr(SCHD.FLTR  fltr) {
		synchronized (fltrBuffer) {
		  fltrBuffer.add(fltr);
		}
	}


	@Override
	public List<FLTR> takeAllFltr() {
		if(fltrBuffer.size() <= 0)
		{
			return Collections.emptyList();
		}
		
		//
		FLTR[] fltrs = null;
		synchronized (fltrBuffer) {
			fltrs = (FLTR[]) fltrBuffer.toArray(new FLTR[fltrBuffer.size()]); 
			fltrBuffer.clear();
		}
		
		
		return Arrays.asList(fltrs);
	}
}