package com.AUG21.ProtocolEncapsulation;

import java.io.*;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.nio.*;
import static com.AUG21.ProtocolEncapsulation.Config.*;

public class BussinessInHelper {

    private ByteBuffer bb;
    private int len;

    public BussinessInHelper(byte[] buf) {
        if (buf != null) {
            this.len = buf.length - END_SYMBOL.length();
            bb = ByteBuffer.wrap(buf, 0, len);
            bb.order(ByteOrder.LITTLE_ENDIAN);
        }
    }
    
   public String getIP(){
	   byte[] ip = new byte[8];
	   for(int i = 0;i<8;i++)ip[i] = bb.get();
	   String s = ip.toString();
	   return s;
    }

    public int getInt() {
        return bb.getInt();
    }

    public long getLong() {
        return bb.getLong();
    }

    public String getString(int length) throws IOException {
        byte[] buf = new byte[length];
        for (int i = 0; i < length; i++) {
            buf[i] = bb.get();
        }
        return new String(buf, "GBK").trim();
    }

    public String getString(int length, String encode) throws
            IOException {
        byte[] buf = new byte[length];
        for (int i = 0; i < length; i++) {
            buf[i] = bb.get();
        }
        return new String(buf, encode).trim();

    }

    public byte getByte() {
        return bb.get();
    }

}