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An open source implementation of the Distributed Interactive Simulation (DIS) IEEE-1278 protocol

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package edu.nps.moves.dismobile;

import java.util.*;
import java.io.*;
import edu.nps.moves.disenum.*;
import edu.nps.moves.disutil.*;


/**
 * Section 5.3.5.2. Information about a request for supplies. COMPLETE
 *
 * Copyright (c) 2008-2010, 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 ResupplyOfferPdu extends LogisticsFamilyPdu implements Serializable
{
   /** Entity that is receiving service */
   protected EntityID  receivingEntityID = new EntityID(); 

   /** Entity that is supplying */
   protected EntityID  supplyingEntityID = new EntityID(); 

   /** how many supplies are being offered */
   protected short  numberOfSupplyTypes;

   /** padding */
   protected short  padding1 = (short)0;

   /** padding */
   protected byte  padding2 = (byte)0;

   protected List< SupplyQuantity> supplies = new ArrayList(); 

/** Constructor */
 public ResupplyOfferPdu()
 {
    setPduType( (short)6 );
 }

public int getMarshalledSize()
{
   int marshalSize = 0; 

   marshalSize = super.getMarshalledSize();
   marshalSize = marshalSize + receivingEntityID.getMarshalledSize();  // receivingEntityID
   marshalSize = marshalSize + supplyingEntityID.getMarshalledSize();  // supplyingEntityID
   marshalSize = marshalSize + 1;  // numberOfSupplyTypes
   marshalSize = marshalSize + 2;  // padding1
   marshalSize = marshalSize + 1;  // padding2
   for(int idx=0; idx < supplies.size(); idx++)
   {
        SupplyQuantity listElement = supplies.get(idx);
        marshalSize = marshalSize + listElement.getMarshalledSize();
   }

   return marshalSize;
}


public void setReceivingEntityID(EntityID pReceivingEntityID)
{ receivingEntityID = pReceivingEntityID;
}

public EntityID getReceivingEntityID()
{ return receivingEntityID; 
}

public void setSupplyingEntityID(EntityID pSupplyingEntityID)
{ supplyingEntityID = pSupplyingEntityID;
}

public EntityID getSupplyingEntityID()
{ return supplyingEntityID; 
}

public short getNumberOfSupplyTypes()
{ return (short)supplies.size();
}

/** Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
 * The getnumberOfSupplyTypes method will also be based on the actual list length rather than this value. 
 * The method is simply here for java bean completeness.
 */
public void setNumberOfSupplyTypes(short pNumberOfSupplyTypes)
{ numberOfSupplyTypes = pNumberOfSupplyTypes;
}

public void setPadding1(short pPadding1)
{ padding1 = pPadding1;
}

public short getPadding1()
{ return padding1; 
}

public void setPadding2(byte pPadding2)
{ padding2 = pPadding2;
}

public byte getPadding2()
{ return padding2; 
}

public void setSupplies(List pSupplies)
{ supplies = pSupplies;
}

public List getSupplies()
{ return supplies; }


public void marshal(DataOutputStream dos)
{
    super.marshal(dos);
    try 
    {
       receivingEntityID.marshal(dos);
       supplyingEntityID.marshal(dos);
       dos.writeByte( (byte)supplies.size());
       dos.writeShort( (short)padding1);
       dos.writeByte( (byte)padding2);

       for(int idx = 0; idx < supplies.size(); idx++)
       {
            SupplyQuantity aSupplyQuantity = supplies.get(idx);
            aSupplyQuantity.marshal(dos);
       } // end of list marshalling

    } // end try 
    catch(Exception e)
    { 
      System.out.println(e);}
    } // end of marshal method

public void unmarshal(DataInputStream dis)
{
     super.unmarshal(dis);

    try 
    {
       receivingEntityID.unmarshal(dis);
       supplyingEntityID.unmarshal(dis);
       numberOfSupplyTypes = (short)dis.readUnsignedByte();
       padding1 = dis.readShort();
       padding2 = dis.readByte();
       for(int idx = 0; idx < numberOfSupplyTypes; idx++)
       {
           SupplyQuantity anX = new SupplyQuantity();
           anX.unmarshal(dis);
           supplies.add(anX);
       }

    } // end try 
   catch(Exception e)
    { 
      System.out.println(e); 
    }
 } // end of unmarshal 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)
{
       super.marshal(buff);
       receivingEntityID.marshal(buff);
       supplyingEntityID.marshal(buff);
       buff.put( (byte)supplies.size());
       buff.putShort( (short)padding1);
       buff.put( (byte)padding2);

       for(int idx = 0; idx < supplies.size(); idx++)
       {
            SupplyQuantity aSupplyQuantity = (SupplyQuantity)supplies.get(idx);
            aSupplyQuantity.marshal(buff);
       } // end of list marshalling

    } // 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)
{
       super.unmarshal(buff);

       receivingEntityID.unmarshal(buff);
       supplyingEntityID.unmarshal(buff);
       numberOfSupplyTypes = (short)(buff.get() & 0xFF);
       padding1 = buff.getShort();
       padding2 = buff.get();
       for(int idx = 0; idx < numberOfSupplyTypes; idx++)
       {
            SupplyQuantity anX = new SupplyQuantity();
            anX.unmarshal(buff);
            supplies.add(anX);
       }

 } // 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);
 }

@Override
 public boolean equalsImpl(Object obj)
 {
     boolean ivarsEqual = true;

    if(!(obj instanceof ResupplyOfferPdu))
        return false;

     final ResupplyOfferPdu rhs = (ResupplyOfferPdu)obj;

     if( ! (receivingEntityID.equals( rhs.receivingEntityID) )) ivarsEqual = false;
     if( ! (supplyingEntityID.equals( rhs.supplyingEntityID) )) ivarsEqual = false;
     if( ! (numberOfSupplyTypes == rhs.numberOfSupplyTypes)) ivarsEqual = false;
     if( ! (padding1 == rhs.padding1)) ivarsEqual = false;
     if( ! (padding2 == rhs.padding2)) ivarsEqual = false;

     for(int idx = 0; idx < supplies.size(); idx++)
     {
        if( ! ( supplies.get(idx).equals(rhs.supplies.get(idx)))) ivarsEqual = false;
     }


    return ivarsEqual && super.equalsImpl(rhs);
 }
} // end of class




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