package com.intelligt.modbus.jlibmodbus.msg.base;
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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 AbstractMultipleRequest extends AbstractDataRequest {
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private int quantity;
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protected AbstractMultipleRequest() {
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super();
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}
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@Override
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protected void readData(ModbusInputStream fifo) throws IOException, ModbusNumberException {
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setQuantity(fifo.readShortBE());
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}
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@Override
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protected void writeData(ModbusOutputStream fifo) throws IOException {
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fifo.writeShortBE(quantity);
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}
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@Override
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protected int dataSize() {
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return 2;
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}
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public int getQuantity() {
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return quantity;
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}
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public void setQuantity(int quantity) throws ModbusNumberException {
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if (!checkAddressRange(getStartAddress(), quantity))
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throw new ModbusNumberException("End address out of bounds", getStartAddress() + quantity);
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this.quantity = quantity;
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}
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protected abstract boolean checkAddressRange(int startAddress, int quantity);
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}
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