edu.nps.moves.dis7.TrackJamData Maven / Gradle / Ivy

Go to download
package edu.nps.moves.dis7;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.Serializable;
import java.nio.ByteBuffer;

/**
 * Track-Jam data Section 6.2.89
 *
 * Copyright (c) 2008-2016, MOVES Institute, Naval Postgraduate School. All
 * rights reserved. This work is licensed under the BSD open source license,
 * available at https://www.movesinstitute.org/licenses/bsd.html
 *
 * @author DMcG
 */
public class TrackJamData extends Object implements Serializable {

    /**
     * the entity tracked or illumated, or an emitter beam targeted with jamming
     */
    protected EntityID entityID = new EntityID();

    /**
     * Emitter system associated with the entity
     */
    protected short emitterNumber;

    /**
     * Beam associated with the entity
     */
    protected short beamNumber;

    /**
     * Constructor
     */
    public TrackJamData() {
    }

    public int getMarshalledSize() {
        int marshalSize = 0;

        marshalSize = marshalSize + entityID.getMarshalledSize();  // entityID
        marshalSize = marshalSize + 1;  // emitterNumber
        marshalSize = marshalSize + 1;  // beamNumber

        return marshalSize;
    }

    public EntityID getEntityID() {
        return entityID;
    }

    public void setEntityID(EntityID pEntityID) {
        entityID = pEntityID;
    }

    public short getEmitterNumber() {
        return emitterNumber;
    }

    public void setEmitterNumber(short pEmitterNumber) {
        emitterNumber = pEmitterNumber;
    }

    public short getBeamNumber() {
        return beamNumber;
    }

    public void setBeamNumber(short pBeamNumber) {
        beamNumber = pBeamNumber;
    }

    /**
     * Packs a Pdu into the DataOutputStream.
     */
    public void marshal(DataOutputStream dos) {
        entityID.marshal(dos);
        try {
            dos.writeByte((byte) emitterNumber);
            dos.writeByte((byte) beamNumber);
        } catch (IOException e) {
            System.out.println(e);
        }
    } // end of marshal method

    /**
     * Packs a Pdu into the ByteBuffer.
     *
     * @throws java.nio.BufferOverflowException if buff is too small
     * @throws java.nio.ReadOnlyBufferException if buff is read only
     * @see java.nio.ByteBuffer
     * @param buff The ByteBuffer at the position to begin writing
     * @since ??
     */
    public void marshal(java.nio.ByteBuffer buff) {
        entityID.marshal(buff);
        buff.put((byte) emitterNumber);
        buff.put((byte) beamNumber);
    } // end of marshal method

    /**
     * Unpacks a Pdu from the underlying data.
     */
    public void unmarshal(DataInputStream dis) {
        try {
            entityID.unmarshal(dis);
            emitterNumber = (short) dis.readUnsignedShort();
            beamNumber = (short) dis.readUnsignedShort();
        } catch (IOException e) {
            e.printStackTrace();
        }
    } // end of unmarshal method

    public void unmarshal(ByteBuffer buff) {
        entityID.unmarshal(buff);
        emitterNumber = (short) (buff.get() & 0xFF);
        beamNumber = (short) (buff.get() & 0xFF);
    }

    /*
     * The equals method doesn't always work--mostly it works only on classes that consist only of primitives. Be careful.
     */
    @Override
    public boolean equals(Object obj) {

        if (this == obj) {
            return true;
        }

        if (obj == null) {
            return false;
        }

        if (getClass() != obj.getClass()) {
            return false;
        }

        return equalsImpl(obj);
    }

    /**
     * Compare all fields that contribute to the state, ignoring transient and
     * static fields, for this and the supplied object
     *
     * @param obj the object to compare to
     * @return true if the objects are equal, false otherwise.
     */
    public boolean equalsImpl(Object obj) {
        boolean ivarsEqual = true;

        if (!(obj instanceof TrackJamData)) {
            return false;
        }

        final TrackJamData rhs = (TrackJamData) obj;

        if (!(entityID.equals(rhs.entityID))) {
            ivarsEqual = false;
        }
        if (!(emitterNumber == rhs.emitterNumber)) {
            ivarsEqual = false;
        }
        if (!(beamNumber == rhs.beamNumber)) {
            ivarsEqual = false;
        }

        return ivarsEqual;
    }

} // end of class