package com.intelligt.modbus.jlibmodbus.data;
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import com.intelligt.modbus.jlibmodbus.exception.IllegalDataAddressException;
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import com.intelligt.modbus.jlibmodbus.exception.IllegalDataValueException;
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import com.intelligt.modbus.jlibmodbus.msg.base.ModbusFileRecord;
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import java.util.Arrays;
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import java.util.Map;
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import java.util.TreeMap;
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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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public class SimpleModbusFile extends ModbusFile {
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final private Map<Integer, ModbusFileRecord> records = new TreeMap<Integer, ModbusFileRecord>();
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public SimpleModbusFile(int number) {
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super(number);
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}
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@Override
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synchronized public int[] read(int recordNumber, int recordLength) throws IllegalDataAddressException {
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if (!records.containsKey(recordNumber))
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throw new IllegalDataAddressException(recordNumber);
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int[] buffer = records.get(recordNumber).getRegisters();
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if (buffer.length < recordLength)
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throw new IllegalDataAddressException(recordLength);
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return Arrays.copyOf(buffer, recordLength);
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}
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@Override
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synchronized public void write(int recordNumber, int[] buffer) throws IllegalDataAddressException, IllegalDataValueException {
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if (records.containsKey(recordNumber)) {
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records.get(recordNumber).writeRegisters(buffer);
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} else {
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records.put(recordNumber, new ModbusFileRecord(getNumber(), recordNumber, buffer));
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}
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super.write(recordNumber, buffer);
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}
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}
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