ElectronicKey.java

package com.digitalpetri.enip.cip.structs;

import io.netty.buffer.ByteBuf;

public final class ElectronicKey {

    private final int vendorId;
    private final int deviceType;
    private final int productCode;
    private final boolean compatibilitySet;
    private final short majorRevision;
    private final short minorRevision;

    public ElectronicKey(int vendorId,
                         int deviceType,
                         int productCode,
                         boolean compatibilitySet,
                         short majorRevision,
                         short minorRevision) {

        this.vendorId = vendorId;
        this.deviceType = deviceType;
        this.productCode = productCode;
        this.compatibilitySet = compatibilitySet;
        this.majorRevision = majorRevision;
        this.minorRevision = minorRevision;
    }

    public int getVendorId() {
        return vendorId;
    }

    public int getDeviceType() {
        return deviceType;
    }

    public int getProductCode() {
        return productCode;
    }

    public boolean isCompatibilitySet() {
        return compatibilitySet;
    }

    public short getMajorRevision() {
        return majorRevision;
    }

    public short getMinorRevision() {
        return minorRevision;
    }

    public static ByteBuf encode(ElectronicKey key, ByteBuf buffer) {
        buffer.writeShort(key.getVendorId());
        buffer.writeShort(key.getDeviceType());
        buffer.writeShort(key.getProductCode());

        int majorRevisionAndCompatibility = key.isCompatibilitySet() ? 0x80 : 0x00;
        majorRevisionAndCompatibility |= (key.getMajorRevision() & 0x7F);

        buffer.writeByte(majorRevisionAndCompatibility);
        buffer.writeByte(key.getMinorRevision());

        return buffer;
    }

}