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An open source implementation of the Distributed Interactive Simulation (DIS) IEEE-1278 protocol
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
/**
* Data about one electronic system
*
* 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 ElectronicEmissionSystemData extends Object implements Serializable
{
/** Primary key for hibernate, not part of the DIS standard */
private long pk_ElectronicEmissionSystemData;
/** This field shall specify the length of this emitter system�s data (including beam data and its track/jam information) in 32-bit words. The length shall include the System Data Length field. */
protected short systemDataLength;
/** This field shall specify the number of beams being described in the current PDU for the system being described. */
protected short numberOfBeams;
/** padding. */
protected int emissionsPadding2 = (int)0;
/** This field shall specify information about a particular emitter system */
protected EmitterSystem emitterSystem = new EmitterSystem();
/** Location with respect to the entity */
protected Vector3Float location = new Vector3Float();
/** variable length list of beam data records */
protected List< ElectronicEmissionBeamData> beamDataRecords = new ArrayList();
/** Constructor */
public ElectronicEmissionSystemData()
{
}
@Transient // Marked as transient to prevent hibernate from thinking this is a persistent property
public int getMarshalledSize()
{
int marshalSize = 0;
marshalSize = marshalSize + 1; // systemDataLength
marshalSize = marshalSize + 1; // numberOfBeams
marshalSize = marshalSize + 2; // emissionsPadding2
marshalSize = marshalSize + emitterSystem.getMarshalledSize(); // emitterSystem
marshalSize = marshalSize + location.getMarshalledSize(); // location
for(int idx=0; idx < beamDataRecords.size(); idx++)
{
ElectronicEmissionBeamData listElement = beamDataRecords.get(idx);
marshalSize = marshalSize + listElement.getMarshalledSize();
}
return marshalSize;
}
/** Primary key for hibernate, not part of the DIS standard */
@Id
@GeneratedValue(strategy=GenerationType.AUTO)
public long getPk_ElectronicEmissionSystemData()
{
return pk_ElectronicEmissionSystemData;
}
/** Hibernate primary key, not part of the DIS standard */
public void setPk_ElectronicEmissionSystemData(long pKeyName)
{
this.pk_ElectronicEmissionSystemData = pKeyName;
}
public void setSystemDataLength(short pSystemDataLength)
{ systemDataLength = pSystemDataLength;
}
@XmlAttribute // Jaxb
@Basic // Hibernate
public short getSystemDataLength()
{ return systemDataLength;
}
@XmlAttribute
@Basic
public short getNumberOfBeams()
{ return (short)beamDataRecords.size();
}
/** Note that setting this value will not change the marshalled value. The list whose length this describes is used for that purpose.
* The getnumberOfBeams 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 setNumberOfBeams(short pNumberOfBeams)
{ numberOfBeams = pNumberOfBeams;
}
public void setEmissionsPadding2(int pEmissionsPadding2)
{ emissionsPadding2 = pEmissionsPadding2;
}
@XmlAttribute // Jaxb
@Basic // Hibernate
public int getEmissionsPadding2()
{ return emissionsPadding2;
}
public void setEmitterSystem(EmitterSystem pEmitterSystem)
{ emitterSystem = pEmitterSystem;
}
// 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_emitterSystem;
@XmlElement
@OneToOne(cascade = CascadeType.ALL)
@JoinColumn(name="fk_emitterSystem")
public EmitterSystem getEmitterSystem()
{ return emitterSystem;
}
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 setBeamDataRecords(List pBeamDataRecords)
{ beamDataRecords = pBeamDataRecords;
}
@XmlElementWrapper(name="beamDataRecordsList" ) // Jaxb
@OneToMany // Hibernate
public List getBeamDataRecords()
{ return beamDataRecords; }
public void marshal(DataOutputStream dos)
{
try
{
dos.writeByte( (byte)systemDataLength);
dos.writeByte( (byte)beamDataRecords.size());
dos.writeShort( (short)emissionsPadding2);
emitterSystem.marshal(dos);
location.marshal(dos);
for(int idx = 0; idx < beamDataRecords.size(); idx++)
{
ElectronicEmissionBeamData aElectronicEmissionBeamData = beamDataRecords.get(idx);
aElectronicEmissionBeamData.marshal(dos);
} // end of list marshalling
} // end try
catch(Exception e)
{
System.out.println(e);}
} // end of marshal method
public void unmarshal(DataInputStream dis)
{
try
{
systemDataLength = (short)dis.readUnsignedByte();
numberOfBeams = (short)dis.readUnsignedByte();
emissionsPadding2 = (int)dis.readUnsignedShort();
emitterSystem.unmarshal(dis);
location.unmarshal(dis);
for(int idx = 0; idx < numberOfBeams; idx++)
{
ElectronicEmissionBeamData anX = new ElectronicEmissionBeamData();
anX.unmarshal(dis);
beamDataRecords.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)
{
buff.put( (byte)systemDataLength);
buff.put( (byte)beamDataRecords.size());
buff.putShort( (short)emissionsPadding2);
emitterSystem.marshal(buff);
location.marshal(buff);
for(int idx = 0; idx < beamDataRecords.size(); idx++)
{
ElectronicEmissionBeamData aElectronicEmissionBeamData = (ElectronicEmissionBeamData)beamDataRecords.get(idx);
aElectronicEmissionBeamData.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)
{
systemDataLength = (short)(buff.get() & 0xFF);
numberOfBeams = (short)(buff.get() & 0xFF);
emissionsPadding2 = (int)(buff.getShort() & 0xFFFF);
emitterSystem.unmarshal(buff);
location.unmarshal(buff);
for(int idx = 0; idx < numberOfBeams; idx++)
{
ElectronicEmissionBeamData anX = new ElectronicEmissionBeamData();
anX.unmarshal(buff);
beamDataRecords.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);
}
/**
* 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 ElectronicEmissionSystemData))
return false;
final ElectronicEmissionSystemData rhs = (ElectronicEmissionSystemData)obj;
if( ! (systemDataLength == rhs.systemDataLength)) ivarsEqual = false;
if( ! (numberOfBeams == rhs.numberOfBeams)) ivarsEqual = false;
if( ! (emissionsPadding2 == rhs.emissionsPadding2)) ivarsEqual = false;
if( ! (emitterSystem.equals( rhs.emitterSystem) )) ivarsEqual = false;
if( ! (location.equals( rhs.location) )) ivarsEqual = false;
for(int idx = 0; idx < beamDataRecords.size(); idx++)
{
if( ! ( beamDataRecords.get(idx).equals(rhs.beamDataRecords.get(idx)))) ivarsEqual = false;
}
return ivarsEqual;
}
} // end of class