edu.nps.moves.dis7.SignalPdu Maven / Gradle / Ivy
package edu.nps.moves.dis7;
import java.util.*;
import java.io.*;
/**
* Detailed information about a radio transmitter. This PDU requires manually
* written code to complete. The encodingScheme field can be used in multiple
* ways, which requires hand-written code to finish. Section 7.7.3. UNFINISHED
*
* 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 SignalPdu extends RadioCommunicationsFamilyPdu implements Serializable {
/**
* radio number and entity ID
*/
protected RadioIdentifier radioIdentifier = new RadioIdentifier();
/**
* Radio number
*/
protected int radioNumber;
/**
* encoding scheme used, and enumeration
*/
protected int encodingScheme;
/**
* tdl type
*/
protected int tdlType;
/**
* sample rate
*/
protected long sampleRate;
/**
* length of data in bits
*/
protected short dataLength;
/**
* number of samples
*/
protected short samples;
/**
* list of eight bit values
*/
protected byte[] data = new byte[0];
/**
* Constructor
*/
public SignalPdu() {
setPduType((short) 26);
}
public int getMarshalledSize() {
int marshalSize = 0;
marshalSize = super.getMarshalledSize();
marshalSize = marshalSize + radioIdentifier.getMarshalledSize();
marshalSize = marshalSize + 2; // radioNumber
marshalSize = marshalSize + 2; // encodingScheme
marshalSize = marshalSize + 2; // tdlType
marshalSize = marshalSize + 4; // sampleRate
marshalSize = marshalSize + 2; // dataLength
marshalSize = marshalSize + 2; // samples
marshalSize = marshalSize + data.length;
switch (data.length % 4) {
case 0:
break;// No padding needed
case 1:
marshalSize = marshalSize + 3;
break;// adding 3 byte padding
case 2:
marshalSize = marshalSize + 2;
break;// adding 2 byte padding
case 3:
marshalSize = marshalSize + 1;
break;// adding 1 byte padding
}
return marshalSize;
}
public void setRadioIdentifier(RadioIdentifier pRadioIdentifier) {
radioIdentifier = pRadioIdentifier;
}
public RadioIdentifier getRadioIdentifier() {
return radioIdentifier;
}
public void setRadioNumber(int pRadioNumber) {
radioNumber = pRadioNumber;
}
public int getRadioNumber() {
return radioNumber;
}
public void setEncodingScheme(int pEncodingScheme) {
encodingScheme = pEncodingScheme;
}
public int getEncodingScheme() {
return encodingScheme;
}
public void setEncodingClass(int pEncodingClass) {
int newEncodingClass = 0;
int newEncodingScheme = 0;
// Save encoding class and create the encoding scheme
newEncodingClass = pEncodingClass << 14; // Move bits 0 - 1 to bit position 14 - 15
newEncodingScheme = newEncodingClass | this.getEncodingType();
this.setEncodingScheme(newEncodingScheme);
}
public int getEncodingClass() {
int extractEncodingClass = 0;
extractEncodingClass = this.getEncodingScheme() & 0xC000; // Lose bits 0 - 13
extractEncodingClass = extractEncodingClass >>> 14; // Move bits 14 - 15 to bit position 0 - 1
return extractEncodingClass;
}
public void setEncodingType(int pEncodingType) {
int newEncodingScheme = 0;
// Save encoding type and create the encoding scheme
newEncodingScheme = this.getEncodingScheme() & 0xC000;
newEncodingScheme = newEncodingScheme | pEncodingType;
this.setEncodingScheme(newEncodingScheme); //
}
public int getEncodingType() {
int extractEncodingType = 0;
extractEncodingType = this.getEncodingScheme() & 0x3FFF; // Lose bits 14 - 15
return extractEncodingType;
}
public void setNumberofTDLMessages(int pEncodingType) {
int newEncodingScheme = 0;
// Save number of TDLs and create the encoding scheme
newEncodingScheme = this.getEncodingScheme() & 0xC000; // Lose bits 0 - 13
newEncodingScheme = newEncodingScheme | pEncodingType;
this.setEncodingScheme(newEncodingScheme); //
}
public int getNumberofTDLMessages() {
int extractEncodingType = 0;
extractEncodingType = this.getEncodingScheme() & 0x3FFF; // Lose bits 14 - 15
return extractEncodingType;
}
public void setTdlType(int pTdlType) {
tdlType = pTdlType;
}
public int getTdlType() {
return tdlType;
}
public void setSampleRate(long pSampleRate) {
sampleRate = pSampleRate;
}
public long getSampleRate() {
return sampleRate;
}
/**
* IAW IEEE 1278.1, this field shall specify the number of **bits** of digital
* voice audio or digital data being sent in this Signal PDU.
*/
public short getDataLength() {
return (short) dataLength;
}
public void setDataLength(short pDataLength) {
dataLength = pDataLength;
}
public void setSamples(short pSamples) {
samples = pSamples;
}
public short getSamples() {
return samples;
}
public void setData(byte[] pData) {
data = pData;
}
public byte[] getData() {
return data;
}
public void marshal(DataOutputStream dos) {
super.marshal(dos);
try {
radioIdentifier.marshal(dos);
dos.writeShort((short) radioNumber);
dos.writeShort((short) encodingScheme);
dos.writeShort((short) tdlType);
dos.writeInt((int) sampleRate);
dos.writeShort((short) dataLength);
dos.writeShort((short) samples);
dos.write(data);
int nrOfBytes = dataLength / Byte.SIZE;
int paddingBytes = nrOfBytes % 4;// Padding to hit 32 bit boundry
switch (paddingBytes) {
case 0:
break;// No padding needed
case 1:
dos.write((byte) 0);
dos.writeShort((short) 0);
break;// adding 3 byte padding
case 2:
dos.writeShort((short) 0);
break;// adding 2 byte padding
case 3:
dos.write((byte) 0);
break;// adding 1 byte padding
}
} // end try
catch (Exception e) {
System.out.println(e);
}
} // end of marshal method
public void unmarshal(DataInputStream dis) {
super.unmarshal(dis);
try {
radioIdentifier.unmarshal(dis);
radioNumber = (int) dis.readUnsignedShort();
encodingScheme = (int) dis.readUnsignedShort();
tdlType = (int) dis.readUnsignedShort();
sampleRate = dis.readInt();
dataLength = dis.readShort();
samples = dis.readShort();
data = new byte[dataLength / Byte.SIZE];
dis.read(data);
} // 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);
radioIdentifier.marshal(buff);
buff.putShort((short) radioNumber);
buff.putShort((short) encodingScheme);
buff.putShort((short) tdlType);
buff.putInt((int) sampleRate);
buff.putShort((short) dataLength);
buff.putShort((short) samples);
buff.put(data);
int nrOfBytes = dataLength / Byte.SIZE;
int paddingBytes = nrOfBytes % 4;// Padding to hit 32 bit boundry
switch (paddingBytes) {
case 0:
break;// No padding needed
case 1:
buff.put((byte) 0);
buff.putShort((short) 0);
break;// adding 3 byte padding
case 2:
buff.putShort((short) 0);
break;// adding 2 byte padding
case 3:
buff.put((byte) 0);
break;// adding 1 byte padding
}
} // 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);
radioIdentifier.unmarshal(buff);
radioNumber = (int) (buff.getShort() & 0xFFFF);
encodingScheme = (int) (buff.getShort() & 0xFFFF);
tdlType = (int) (buff.getShort() & 0xFFFF);
sampleRate = buff.getInt();
dataLength = buff.getShort();
samples = buff.getShort();
data = new byte[dataLength / Byte.SIZE];
buff.get(data);
} // 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 SignalPdu)) {
return false;
}
final SignalPdu rhs = (SignalPdu) obj;
if (!(radioIdentifier.equals(rhs.radioIdentifier))) {
ivarsEqual = false;
}
if (!(radioNumber == rhs.radioNumber)) {
ivarsEqual = false;
}
if (!(encodingScheme == rhs.encodingScheme)) {
ivarsEqual = false;
}
if (!(tdlType == rhs.tdlType)) {
ivarsEqual = false;
}
if (!(sampleRate == rhs.sampleRate)) {
ivarsEqual = false;
}
if (!(dataLength == rhs.dataLength)) {
ivarsEqual = false;
}
if (!(samples == rhs.samples)) {
ivarsEqual = false;
}
if (!(Arrays.equals(data, rhs.data))) {
ivarsEqual = false;
}
return ivarsEqual && super.equalsImpl(rhs);
}
} // end of class
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