com.intelligt.modbus.jlibmodbus.msg.response.ReadCoilsResponse Maven / Gradle / Ivy
package com.intelligt.modbus.jlibmodbus.msg.response;
import com.intelligt.modbus.jlibmodbus.Modbus;
import com.intelligt.modbus.jlibmodbus.data.ModbusCoils;
import com.intelligt.modbus.jlibmodbus.exception.ModbusNumberException;
import com.intelligt.modbus.jlibmodbus.msg.base.AbstractReadResponse;
import com.intelligt.modbus.jlibmodbus.net.stream.base.ModbusInputStream;
import com.intelligt.modbus.jlibmodbus.net.stream.base.ModbusOutputStream;
import com.intelligt.modbus.jlibmodbus.utils.DataUtils;
import com.intelligt.modbus.jlibmodbus.utils.ModbusFunctionCode;
import java.io.IOException;
import java.util.Arrays;
/*
* 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]
*/
public class ReadCoilsResponse extends AbstractReadResponse {
private byte[] buffer = new byte[0];
public ReadCoilsResponse() {
super();
}
static public int calcByteCount(boolean[] coils) {
return calcByteCount(coils.length);
}
static public int calcByteCount(int coilCount) {
return (int) Math.ceil((double) coilCount / 8);
}
/**
* returns a copy of the raw byte-buffer
*
* @return registers bytes
*/
final public byte[] getBytes() {
return Arrays.copyOf(buffer, buffer.length);
}
@Deprecated
final public boolean[] getCoils() {
return DataUtils.toBitsArray(buffer, buffer.length * 8);
}
final public ModbusCoils getModbusCoils() {
return new ModbusCoils(buffer);
}
final public void setCoils(boolean[] coils) throws ModbusNumberException {
this.buffer = DataUtils.toByteArray(coils);
setByteCount(calcByteCount(coils));
}
@Override
final protected void readData(ModbusInputStream fifo) throws IOException {
buffer = new byte[getByteCount()];
int size;
if ((size = fifo.read(buffer)) < buffer.length)
Modbus.log().warning(buffer.length + " bytes expected, but " + size + " received.");
}
@Override
final protected void writeData(ModbusOutputStream fifo) throws IOException {
fifo.write(buffer);
}
@Override
public int getFunction() {
return ModbusFunctionCode.READ_COILS.toInt();
}
}