edu.nps.moves.dis.CollisionPdu Maven / Gradle / Ivy
package edu.nps.moves.dis;
import java.util.*;
import java.io.*;
import edu.nps.moves.disenum.*;
import edu.nps.moves.disutil.*;
// Jaxb and Hibernate annotations generally won't work on mobile devices. XML serialization uses jaxb, and
// javax.persistence uses the JPA JSR, aka hibernate. See the Hibernate site for details.
// To generate Java code without these, and without the annotations scattered through the
// see the XMLPG java code generator, and set the boolean useHibernateAnnotations and useJaxbAnnotions
// to false, and then regenerate the code
import javax.xml.bind.*; // Used for JAXB XML serialization
import javax.xml.bind.annotation.*; // Used for XML serialization annotations (the @ stuff)
import javax.persistence.*; // Used for JPA/Hibernate SQL persistence
/**
* Section 5.3.3.2. Information about a collision. 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
*/
@Entity // Hibernate
@Inheritance(strategy=InheritanceType.JOINED) // Hibernate
public class CollisionPdu extends EntityInformationFamilyPdu implements Serializable
{
/** ID of the entity that issued the collision PDU */
protected EntityID issuingEntityID = new EntityID();
/** ID of entity that has collided with the issuing entity ID */
protected EntityID collidingEntityID = new EntityID();
/** ID of event */
protected EventID eventID = new EventID();
/** ID of event */
protected short collisionType;
/** some padding */
protected byte pad = (byte)0;
/** velocity at collision */
protected Vector3Float velocity = new Vector3Float();
/** mass of issuing entity */
protected float mass;
/** Location with respect to entity the issuing entity collided with */
protected Vector3Float location = new Vector3Float();
/** Constructor */
public CollisionPdu()
{
setPduType( (short)4 );
setProtocolFamily( (short)1 );
}
@Transient // Marked as transient to prevent hibernate from thinking this is a persistent property
public int getMarshalledSize()
{
int marshalSize = 0;
marshalSize = super.getMarshalledSize();
marshalSize = marshalSize + issuingEntityID.getMarshalledSize(); // issuingEntityID
marshalSize = marshalSize + collidingEntityID.getMarshalledSize(); // collidingEntityID
marshalSize = marshalSize + eventID.getMarshalledSize(); // eventID
marshalSize = marshalSize + 1; // collisionType
marshalSize = marshalSize + 1; // pad
marshalSize = marshalSize + velocity.getMarshalledSize(); // velocity
marshalSize = marshalSize + 4; // mass
marshalSize = marshalSize + location.getMarshalledSize(); // location
return marshalSize;
}
public void setIssuingEntityID(EntityID pIssuingEntityID)
{ issuingEntityID = pIssuingEntityID;
}
// HIBERNATE: this ivar is a foreign key, linked to the below class table.
// It is not a DIS-standard variable and is not marshalled to IEEE-1278.1
public long fk_issuingEntityID;
@XmlElement
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name="fk_issuingEntityID")
public EntityID getIssuingEntityID()
{ return issuingEntityID;
}
public void setCollidingEntityID(EntityID pCollidingEntityID)
{ collidingEntityID = pCollidingEntityID;
}
// HIBERNATE: this ivar is a foreign key, linked to the below class table.
// It is not a DIS-standard variable and is not marshalled to IEEE-1278.1
public long fk_collidingEntityID;
@XmlElement
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name="fk_collidingEntityID")
public EntityID getCollidingEntityID()
{ return collidingEntityID;
}
public void setEventID(EventID pEventID)
{ eventID = pEventID;
}
// HIBERNATE: this ivar is a foreign key, linked to the below class table.
// It is not a DIS-standard variable and is not marshalled to IEEE-1278.1
public long fk_eventID;
@XmlElement
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name="fk_eventID")
public EventID getEventID()
{ return eventID;
}
public void setCollisionType(short pCollisionType)
{ collisionType = pCollisionType;
}
@XmlAttribute // Jaxb
@Basic // Hibernate
public short getCollisionType()
{ return collisionType;
}
public void setPad(byte pPad)
{ pad = pPad;
}
@XmlAttribute // Jaxb
@Basic // Hibernate
public byte getPad()
{ return pad;
}
public void setVelocity(Vector3Float pVelocity)
{ velocity = pVelocity;
}
// HIBERNATE: this ivar is a foreign key, linked to the below class table.
// It is not a DIS-standard variable and is not marshalled to IEEE-1278.1
public long fk_velocity;
@XmlElement
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name="fk_velocity")
public Vector3Float getVelocity()
{ return velocity;
}
public void setMass(float pMass)
{ mass = pMass;
}
@XmlAttribute // Jaxb
@Basic // Hibernate
public float getMass()
{ return mass;
}
public void setLocation(Vector3Float pLocation)
{ location = pLocation;
}
// HIBERNATE: this ivar is a foreign key, linked to the below class table.
// It is not a DIS-standard variable and is not marshalled to IEEE-1278.1
public long fk_location;
@XmlElement
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name="fk_location")
public Vector3Float getLocation()
{ return location;
}
public void marshal(DataOutputStream dos)
{
super.marshal(dos);
try
{
issuingEntityID.marshal(dos);
collidingEntityID.marshal(dos);
eventID.marshal(dos);
dos.writeByte( (byte)collisionType);
dos.writeByte( (byte)pad);
velocity.marshal(dos);
dos.writeFloat( (float)mass);
location.marshal(dos);
} // end try
catch(Exception e)
{
System.out.println(e);}
} // end of marshal method
public void unmarshal(DataInputStream dis)
{
super.unmarshal(dis);
try
{
issuingEntityID.unmarshal(dis);
collidingEntityID.unmarshal(dis);
eventID.unmarshal(dis);
collisionType = (short)dis.readUnsignedByte();
pad = dis.readByte();
velocity.unmarshal(dis);
mass = dis.readFloat();
location.unmarshal(dis);
} // 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);
issuingEntityID.marshal(buff);
collidingEntityID.marshal(buff);
eventID.marshal(buff);
buff.put( (byte)collisionType);
buff.put( (byte)pad);
velocity.marshal(buff);
buff.putFloat( (float)mass);
location.marshal(buff);
} // 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);
issuingEntityID.unmarshal(buff);
collidingEntityID.unmarshal(buff);
eventID.unmarshal(buff);
collisionType = (short)(buff.get() & 0xFF);
pad = buff.get();
velocity.unmarshal(buff);
mass = buff.getFloat();
location.unmarshal(buff);
} // 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 CollisionPdu))
return false;
final CollisionPdu rhs = (CollisionPdu)obj;
if( ! (issuingEntityID.equals( rhs.issuingEntityID) )) ivarsEqual = false;
if( ! (collidingEntityID.equals( rhs.collidingEntityID) )) ivarsEqual = false;
if( ! (eventID.equals( rhs.eventID) )) ivarsEqual = false;
if( ! (collisionType == rhs.collisionType)) ivarsEqual = false;
if( ! (pad == rhs.pad)) ivarsEqual = false;
if( ! (velocity.equals( rhs.velocity) )) ivarsEqual = false;
if( ! (mass == rhs.mass)) ivarsEqual = false;
if( ! (location.equals( rhs.location) )) ivarsEqual = false;
return ivarsEqual && super.equalsImpl(rhs);
}
} // end of class