package com.intelligt.modbus.jlibmodbus.msg.response;
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import com.intelligt.modbus.jlibmodbus.Modbus;
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import com.intelligt.modbus.jlibmodbus.exception.ModbusNumberException;
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import com.intelligt.modbus.jlibmodbus.msg.base.AbstractReadResponse;
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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 com.intelligt.modbus.jlibmodbus.utils.ModbusFunctionCode;
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import java.io.IOException;
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import java.util.Arrays;
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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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final public class ReportSlaveIdResponse extends AbstractReadResponse {
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private byte[] slaveId;
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public ReportSlaveIdResponse() {
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super();
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}
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public byte[] getSlaveId() {
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return slaveId != null ? Arrays.copyOf(slaveId, slaveId.length) : new byte[0];
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}
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public void setSlaveId(byte[] slaveId) throws ModbusNumberException {
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if ((slaveId.length + 2) > Modbus.MAX_PDU_LENGTH)
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throw new ModbusNumberException("Slave Id greater than max pdu length: ", getByteCount());
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setByteCount(slaveId.length);
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this.slaveId = Arrays.copyOf(slaveId, slaveId.length);
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}
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@Override
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protected void readData(ModbusInputStream fifo) throws IOException {
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if (Modbus.MAX_PDU_LENGTH < responseSize()) {
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throw new IOException("Slave Id greater than max pdu length: " + getByteCount());
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}
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slaveId = new byte[getByteCount()];
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int size;
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if ((size = fifo.read(slaveId)) < slaveId.length)
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Modbus.log().warning(slaveId.length + " bytes expected, but " + size + " received.");
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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.write(slaveId);
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}
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@Override
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public int getFunction() {
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return ModbusFunctionCode.REPORT_SLAVE_ID.toInt();
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}
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}
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