smppreader.java

来自「华为模拟网关源码 华为模拟网关源码 华为模拟网关源码」· Java 代码 · 共 58 行

package com.huawei.insa2.comm.smpp;

import com.huawei.insa2.comm.PMessage;
import com.huawei.insa2.comm.PReader;
import com.huawei.insa2.comm.smpp.message.SMPPDeliverMessage;
import com.huawei.insa2.comm.smpp.message.SMPPEnquireLinkMessage;
import com.huawei.insa2.comm.smpp.message.SMPPEnquireLinkRespMessage;
import com.huawei.insa2.comm.smpp.message.SMPPLoginRespMessage;
import com.huawei.insa2.comm.smpp.message.SMPPSubmitRespMessage;
import com.huawei.insa2.comm.smpp.message.SMPPUnbindMessage;
import com.huawei.insa2.comm.smpp.message.SMPPUnbindRespMessage;
import com.huawei.insa2.util.TypeConvert;
import java.io.*;

/**
 * SMPP为变长PDU协议
 *
 */
public class SMPPReader extends PReader {

	public SMPPReader(InputStream is) {
		in = new DataInputStream(is);
	}

	public PMessage read() throws IOException {
		int total_Length = in.readInt();
		int command_Id = in.readInt();

		byte buf[] = new byte[total_Length];
		TypeConvert.int2byte(total_Length, buf, 0);
		TypeConvert.int2byte(command_Id, buf, 4);

		in.readFully(buf, 8, total_Length - 8);

		switch (command_Id) {
		case SMPPConstant.Bind_Receiver_Rep_Command_Id:
		case SMPPConstant.Bind_Transmitter_Rep_Command_Id:
			return new SMPPLoginRespMessage(buf);
		case SMPPConstant.Deliver_Command_Id:
			return new SMPPDeliverMessage(buf);
		case SMPPConstant.Submit_Rep_Command_Id:
			return new SMPPSubmitRespMessage(buf);
		case SMPPConstant.Enquire_Link_Command_Id:
			return new SMPPEnquireLinkMessage(buf);
		case SMPPConstant.Deliver_Rep_Command_Id:
			return new SMPPEnquireLinkRespMessage(buf);
		case SMPPConstant.Unbind_Command_Id:
			return new SMPPUnbindMessage(buf);
		case SMPPConstant.Unbind_Rep_Command_Id:
			return new SMPPUnbindRespMessage(buf);
		default:
			return null;
		}
	}

	protected DataInputStream in;
}