com.invertor.modbus.msg.base.ModbusMessage Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jlibmodbus Show documentation
Show all versions of jlibmodbus Show documentation
Implementation of the Modbus protocol in Java language
package com.invertor.modbus.msg.base;
import com.invertor.modbus.Modbus;
import com.invertor.modbus.exception.ModbusIOException;
import com.invertor.modbus.exception.ModbusNumberException;
import com.invertor.modbus.net.stream.base.ModbusInputStream;
import com.invertor.modbus.net.stream.base.ModbusOutputStream;
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]
*/
abstract public class ModbusMessage {
final private int serverAddress;
private int protocolId = Modbus.PROTOCOL_ID;
private int transactionId = 0;
ModbusMessage(int serverAddress) throws ModbusNumberException {
if (!Modbus.checkServerAddress(serverAddress))
throw new ModbusNumberException("Error in slave id", serverAddress);
this.serverAddress = serverAddress;
}
final public void write(ModbusOutputStream fifo) throws ModbusIOException {
try {
fifo.write(getServerAddress());
writePDU(fifo);
} catch (IOException e) {
throw new ModbusIOException(e);
}
}
final public void read(ModbusInputStream fifo) throws ModbusNumberException, ModbusIOException {
try {
readPDU(fifo);
} catch (IOException e) {
throw new ModbusIOException(e);
}
}
abstract public void readPDU(ModbusInputStream fifo) throws ModbusNumberException, IOException;
abstract protected void writePDU(ModbusOutputStream fifo) throws IOException;
abstract public int getFunction();
public int size() {
return 1 + pduSize();
}
abstract protected int pduSize();
public int getServerAddress() {
return serverAddress;
}
public int getProtocolId() {
return protocolId;
}
public void setProtocolId(int protocolId) {
this.protocolId = protocolId;
}
public int getTransactionId() {
return transactionId;
}
public void setTransactionId(int transactionId) {
this.transactionId = transactionId;
}
}