edu.nps.moves.dis.SupplyQuantity Maven / Gradle / Ivy

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package edu.nps.moves.dis;

import java.io.*;

/**
 * Section 5.2.30. A supply, and the amount of that supply. Similar to an entity
 * kind but with the addition of a quantity.
 *
 * 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 SupplyQuantity extends Object implements Serializable {

    /**
     * Type of supply
     */
    protected EntityType supplyType = new EntityType();

    /**
     * quantity to be supplied
     */
    protected short quantity;

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

    public int getMarshalledSize() {
        int marshalSize = 0;

        marshalSize = marshalSize + supplyType.getMarshalledSize();  // supplyType
        marshalSize = marshalSize + 1;  // quantity

        return marshalSize;
    }

    public void setSupplyType(EntityType pSupplyType) {
        supplyType = pSupplyType;
    }

    public EntityType getSupplyType() {
        return supplyType;
    }

    public void setQuantity(short pQuantity) {
        quantity = pQuantity;
    }

    public short getQuantity() {
        return quantity;
    }

    /**
     * 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) {
        supplyType.marshal(buff);
        buff.put((byte) quantity);
    } // end of marshal method

    /**
     * Unpacks a Pdu from the underlying data.
     *
     * @throws java.nio.BufferUnderflowException if buff is too small
     * @see java.nio.ByteBuffer
     * @param buff The ByteBuffer at the position to begin reading
     * @since ??
     */
    public void unmarshal(java.nio.ByteBuffer buff) {
        supplyType.unmarshal(buff);
        quantity = (short) (buff.get() & 0xFF);
    } // end of unmarshal method 


    /*
  * 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 SupplyQuantity)) {
            return false;
        }

        final SupplyQuantity rhs = (SupplyQuantity) obj;

        if (!(supplyType.equals(rhs.supplyType))) {
            ivarsEqual = false;
        }
        if (!(quantity == rhs.quantity)) {
            ivarsEqual = false;
        }

        return ivarsEqual;
    }
} // end of class