edu.nps.moves.dis7.VariableTransmitterParameters Maven / Gradle / Ivy
package edu.nps.moves.dis7;
import java.io.*;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
/**
* Relates to radios. NOT COMPLETE. Section 6.2.94
*
* 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 VariableTransmitterParameters extends Object implements Serializable {
/**
* Type of VTP. Enumeration from EBV
*/
protected long recordType;
/**
* Length, in bytes
*/
protected long recordLength = (long) 4;
/**
* transmitter parameters
*/
protected List recordSpecificFieldsList = new ArrayList<>();
private final int RECORD_TYPE_FIELD_SIZE = 4;
private final int RECORD_LENGTH_FIELD_SIZE = 2;
/**
* Constructor
*/
public VariableTransmitterParameters() {
}
public int getMarshalledSize() {
int marshalSize = 0;
marshalSize = marshalSize + 4; // recordType
marshalSize = marshalSize + 2; // recordLength
marshalSize = marshalSize + recordSpecificFieldsList.size(); // recordParameters
int remainder = marshalSize % 8;
if (remainder > 0) {
marshalSize = marshalSize + calculatePaddingByteNr(remainder);
}
return marshalSize;
}
public void setRecordType(long pRecordType) {
recordType = pRecordType;
}
public long getRecordType() {
return recordType;
}
public void setRecordLength(long pRecordLength) {
recordLength = pRecordLength;
}
public long getRecordLength() {
return recordLength;
}
public List getRecordSpecificFieldsList() {
return recordSpecificFieldsList;
}
public void setRecordSpecificFieldsList(List recordSpecificFieldsList) {
this.recordSpecificFieldsList = recordSpecificFieldsList;
}
private int calculatePaddingByteNr(final int remainder) {
int paddingByteNr = 0;
switch (remainder) {
case 1:
paddingByteNr = 7;
break;
case 2:
paddingByteNr = 6;
break;
case 3:
paddingByteNr = 5;
break;
case 4:
paddingByteNr = 4;
break;
case 5:
paddingByteNr = 3;
break;
case 6:
paddingByteNr = 2;
break;
case 7:
paddingByteNr = 1;
break;
}
return paddingByteNr;
}
public void marshal(DataOutputStream dos) {
try {
dos.writeInt((int) recordType);
dos.writeShort((int) getMarshalledSize());
Iterator iter = recordSpecificFieldsList.iterator();
while (iter.hasNext()) {
byte nextByte = iter.next();
dos.writeByte(nextByte);
}
final int remainder = (recordSpecificFieldsList.size() + RECORD_TYPE_FIELD_SIZE + RECORD_LENGTH_FIELD_SIZE) % 8;
if (remainder > 0) {
int paddingByteNr = 0;
paddingByteNr = calculatePaddingByteNr(remainder);
for (int i = 0; i < paddingByteNr; i++) {
dos.writeByte(0);
}
}
} // end try
catch (Exception e) {
System.out.println(e);
}
} // end of marshal method
public void unmarshal(DataInputStream dis) {
try {
recordType = dis.readInt();
recordLength = dis.readShort();
final long dataLength = recordLength - RECORD_TYPE_FIELD_SIZE - RECORD_LENGTH_FIELD_SIZE;
for (int i = 0; i < (dataLength); i++) {
byte nextByte = dis.readByte();
recordSpecificFieldsList.add(nextByte);
}
} // 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.putInt((int) recordType);
buff.putShort((short) getMarshalledSize());
Iterator iter = recordSpecificFieldsList.iterator();
while (iter.hasNext()) {
byte nextByte = iter.next();
buff.put(nextByte);
}
final int remainder = recordSpecificFieldsList.size() % 8;
if (remainder > 0) {
int paddingByteNr = 0;
paddingByteNr = calculatePaddingByteNr(remainder);
for (int i = 0; i < paddingByteNr; i++) {
buff.put((byte) 0);
}
}
} // 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) {
recordType = buff.getInt();
recordLength = buff.getShort();
final long dataLength = recordLength - RECORD_TYPE_FIELD_SIZE - RECORD_LENGTH_FIELD_SIZE;
for (int i = 0; i < dataLength; i++) {
byte nextByte = buff.get();
recordSpecificFieldsList.add(nextByte);
}
} // 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 VariableTransmitterParameters)) {
return false;
}
final VariableTransmitterParameters rhs = (VariableTransmitterParameters) obj;
if (!(recordType == rhs.recordType)) {
ivarsEqual = false;
}
if (!(recordLength == rhs.recordLength)) {
ivarsEqual = false;
}
for (int idx = 0; idx < recordSpecificFieldsList.size(); idx++) {
if (!(recordSpecificFieldsList.get(idx).equals(rhs.recordSpecificFieldsList.get(idx)))) {
ivarsEqual = false;
}
}
return ivarsEqual;
}
} // end of class
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