package com.intelligt.modbus.jlibmodbus.msg.base;
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import com.intelligt.modbus.jlibmodbus.Modbus;
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import com.intelligt.modbus.jlibmodbus.exception.ModbusIOException;
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import com.intelligt.modbus.jlibmodbus.exception.ModbusNumberException;
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import com.intelligt.modbus.jlibmodbus.net.stream.base.ModbusInputStream;
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import com.intelligt.modbus.jlibmodbus.net.stream.base.ModbusOutputStream;
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import java.io.IOException;
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/*
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* Copyright (C) 2016 "Invertor" Factory", JSC
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* [http://www.sbp-invertor.ru]
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*
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* This file is part of JLibModbus.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Authors: Vladislav Y. Kochedykov, software engineer.
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* email: vladislav.kochedykov@gmail.com
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*/
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abstract public class ModbusMessage {
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private int serverAddress = Modbus.TCP_DEFAULT_ID;
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private int protocolId = Modbus.PROTOCOL_ID;
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private int transactionId = 0;
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public ModbusMessage() {
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}
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final public void write(ModbusOutputStream fifo) throws ModbusIOException {
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try {
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fifo.write(getServerAddress());
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writePDU(fifo);
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} catch (IOException e) {
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throw new ModbusIOException(e);
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}
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}
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final public void read(ModbusInputStream fifo) throws ModbusNumberException, ModbusIOException {
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try {
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readPDU(fifo);
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} catch (IOException e) {
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throw new ModbusIOException(e);
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}
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}
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abstract public void readPDU(ModbusInputStream fifo) throws ModbusNumberException, IOException;
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abstract protected void writePDU(ModbusOutputStream fifo) throws IOException;
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abstract public int getFunction();
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public int size() {
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return 1 + pduSize();
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}
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abstract protected int pduSize();
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public int getServerAddress() {
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return serverAddress;
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}
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/*
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protected ModbusMessage(int serverAddress) throws ModbusNumberException {
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setServerAddress(serverAddress);
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}
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*/
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public void setServerAddress(int serverAddress) throws ModbusNumberException {
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if (!Modbus.checkServerAddress(serverAddress))
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throw new ModbusNumberException("Error in slave id", serverAddress);
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this.serverAddress = serverAddress;
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}
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public int getProtocolId() {
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return protocolId;
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}
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public void setProtocolId(int protocolId) {
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this.protocolId = protocolId;
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}
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public int getTransactionId() {
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return transactionId;
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}
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public void setTransactionId(int transactionId) {
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this.transactionId = transactionId;
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}
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}
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