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Implementation of the Modbus protocol in Java language
package com.invertor.modbus.msg.response;
import com.invertor.modbus.exception.ModbusNumberException;
import com.invertor.modbus.msg.base.ModbusResponse;
import com.invertor.modbus.msg.base.mei.MEIFactory;
import com.invertor.modbus.msg.base.mei.ModbusEncapsulatedInterface;
import com.invertor.modbus.net.stream.base.ModbusInputStream;
import com.invertor.modbus.net.stream.base.ModbusOutputStream;
import com.invertor.modbus.utils.MEITypeCode;
import com.invertor.modbus.utils.ModbusFunctionCode;
import java.io.IOException;
/*
* Copyright (C) 2016 "Invertor" Factory", JSC
* [http://www.sbp-invertor.ru]
*
* This file is part of JLibModbus.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Authors: Vladislav Y. Kochedykov, software engineer.
* email: [email protected]
*/
public class EncapsulatedInterfaceTransportResponse extends ModbusResponse {
private ModbusEncapsulatedInterface mei = null;
public EncapsulatedInterfaceTransportResponse(int serverAddress) throws ModbusNumberException {
super(serverAddress);
}
@Override
protected void readResponse(ModbusInputStream fifo) throws IOException, ModbusNumberException {
int meiTypeCode = fifo.read();
setMei(MEIFactory.getMEI(MEITypeCode.get(meiTypeCode)));
if (getMei() == null)
throw new ModbusNumberException("Unknown MEI type", meiTypeCode);
getMei().readResponse(fifo);
}
@Override
protected void writeResponse(ModbusOutputStream fifo) throws IOException {
fifo.write(getMei().getTypeCode().toInt());
getMei().writeResponse(fifo);
}
public ModbusEncapsulatedInterface getMei() {
return mei;
}
public void setMei(ModbusEncapsulatedInterface mei) {
this.mei = mei;
}
@Override
protected int responseSize() {
return 1 + (mei == null ? 0 : mei.getResponseSize());
}
public int getFunction() {
return ModbusFunctionCode.ENCAPSULATED_INTERFACE_TRANSPORT.toInt();
}
}