me.martiii.modbustcpjava.protocol.responses.ReadResponse Maven / Gradle / Ivy

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Modbus-TCP protocol for java.

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package me.martiii.modbustcpjava.protocol.responses;

import me.martiii.modbustcpjava.protocol.ModbusResponse;

public class ReadResponse{
    private int numberBytes;
    private byte[] valuesData;

    public ReadResponse(ModbusResponse response) {
        byte[] data = response.getData();
        numberBytes = data[0] & 0xff;
        valuesData = new byte[data.length - 1];
        System.arraycopy(data, 1, valuesData, 0, data.length - 1);
    }

    public int getNumberRegisters() {
        return numberBytes / 2;
    }

    public int[] getUnsignedRegisters() {
        int[] registers = new int[getNumberRegisters()];
        for (int i = 0; i < getNumberRegisters(); i++) {
            registers[i] = ((valuesData[i * 2] & 0xff) << 8) | (valuesData[i * 2 + 1] & 0xff);
        }
        return registers;
    }

    public int[] getRegisters() {
        int[] registers = new int[getNumberRegisters()];
        for (int i = 0; i < getNumberRegisters(); i++) {
            registers[i] = ((valuesData[i * 2]) << 8) | (valuesData[i * 2 + 1] & 0xff);
        }
        return registers;
    }

    public int getNumberCoils() {
        return numberBytes * 8;
    }

    public boolean[] getCoils() {
        boolean[] coils = new boolean[getNumberCoils()];
        for (int i = 0; i < numberBytes; i++) {
            for (int b = 0; b < 8; b++) {
                coils[i * 8 + b] = (valuesData[i] & (byte) Math.pow(2, b)) != 0;
            }
        }
        return coils;
    }
}