net.epsilony.utils.codec.modbus.reqres.ModbusResponse.java Source code

Introduction

Here is the source code for net.epsilony.utils.codec.modbus.reqres.ModbusResponse.java

Source

/*
 *
 * The MIT License (MIT)
 * 
 * Copyright (C) 2013 Man YUAN <epsilon@epsilony.net>
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package net.epsilony.utils.codec.modbus.reqres;

import io.netty.buffer.ByteBuf;

/**
 * @author <a href="mailto:epsilony@epsilony.net">Man YUAN</a>
 *
 */
public abstract class ModbusResponse {
    protected int transectionId;
    protected int unitId;

    public ModbusResponse(int transectionId, int unitId) {
        this.transectionId = transectionId;
        this.unitId = unitId;
    }

    public ModbusResponse() {
    }

    public int getTransectionId() {
        return transectionId;
    }

    public void setTransectionId(int transectionId) {
        this.transectionId = transectionId;
    }

    public int getUnitId() {
        return unitId;
    }

    public void setUnitId(int unitId) {
        this.unitId = unitId;
    }

    public abstract int getFunctionCode();

    public void encode(ByteBuf out) {
        out.writeShort(transectionId);
        out.writeShort(0);
        out.writeShort(getPduCoreLength() + 2);
        out.writeByte(unitId);
        out.writeByte(getFunctionCode());
        writePduCore(out);
    }

    public abstract void writePduCore(ByteBuf out);

    public abstract int getPduCoreLength();

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + getFunctionCode();
        result = prime * result + transectionId;
        result = prime * result + unitId;
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        ModbusResponse other = (ModbusResponse) obj;
        if (getFunctionCode() != other.getFunctionCode())
            return false;
        if (transectionId != other.transectionId)
            return false;
        if (unitId != other.unitId)
            return false;
        return true;
    }

}