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package com.benburwell.planes.sbs;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.DoubleSummaryStatistics;
/**
* Created by ben on 11/15/16.
*/
public class SBSPacket {
private MessageType messageType;
private TransmissionType transmissionType;
private String sessionId;
private String aircraftId;
private String hexIdent;
private String flightId;
private Date dateGenerated;
private Date dateLogged;
private String callsign;
private double altitude;
private double groundSpeed;
private double track;
private double latitude;
private double longitude;
private double verticalRate;
private String squawk;
private boolean alert;
private boolean emergency;
private boolean spi;
private boolean isOnGround;
public SBSPacket() {
}
public SBSPacket(String packet) throws MalformedPacketException {
this.parse(packet);
}
public void parse(String packet) throws MalformedPacketException {
String[] segments = packet.split(",", -1);
if (segments.length < 11) {
throw new MalformedPacketException("Packet must have at least 11 fields, but has only " + segments.length);
}
// get the message type
try {
this.messageType = MessageType.parse(segments[0]);
} catch (UnrecognizedMessageTypeException e) {
throw new MalformedPacketException("Packet has an unrecognized message type: " + e.getType());
}
// get the transmission type
if (this.messageType.equals(MessageType.TRANSMISSION)) {
try {
this.transmissionType = TransmissionType.parse(segments[1]);
} catch (UnrecognizedTransmissionTypeException e) {
throw new MalformedPacketException("Packet has an unrecognized transmission type code: " + e.getCode());
}
}
this.sessionId = segments[2];
this.aircraftId = segments[3];
this.hexIdent = segments[4];
this.flightId = segments[5];
this.dateGenerated = this.parseDateAndTime(segments[6], segments[7]);
this.dateLogged = this.parseDateAndTime(segments[8], segments[9]);
this.callsign = segments[10];
if (this.messageType.equals(MessageType.TRANSMISSION)) {
if (segments.length < 22) {
throw new MalformedPacketException("Packet is a message (22 fields), but only has " + segments.length);
}
if (segments[11].length() > 0) {
this.altitude = Double.parseDouble(segments[11]);
}
if (segments[12].length() > 0) {
this.groundSpeed = Double.parseDouble(segments[12]);
}
if (segments[13].length() > 0) {
this.track = Double.parseDouble(segments[13]);
}
if (segments[14].length() > 0) {
this.latitude = Double.parseDouble(segments[14]);
}
if (segments[15].length() > 0) {
this.longitude = Double.parseDouble(segments[15]);
}
if (segments[16].length() > 0) {
this.verticalRate = Double.parseDouble(segments[16]);
}
this.squawk = segments[17];
if (segments[18].length() > 0) {
this.alert = segments[18].equals("1");
}
if (segments[19].length() > 0) {
this.emergency = segments[19].equals("1");
}
if (segments[20].length() > 0) {
this.spi = segments[20].equals("1");
}
if (segments[21].length() > 0) {
this.isOnGround = segments[21].equals("1");
}
}
}
public Date parseDateAndTime(String date, String time) {
String combined = "";
Calendar now = Calendar.getInstance();
if (date == null || date.isEmpty()) {
combined += now.get(Calendar.YEAR) + "/" + now.get(Calendar.MONTH) + "/" + now.get(Calendar.DAY_OF_MONTH);
} else {
combined += date;
}
combined += " ";
if (time == null || time.isEmpty()) {
combined += now.get(Calendar.HOUR_OF_DAY) + ":" +
now.get(Calendar.MINUTE) + ":" +
now.get(Calendar.SECOND) + "." +
now.get(Calendar.MILLISECOND);
} else {
combined += time;
}
SimpleDateFormat fmt = new SimpleDateFormat("yyyy/MM/dd hh:mm:ss.sss");
try {
return fmt.parse(combined);
} catch (ParseException e) {
return null;
}
}
public String toString() {
return this.messageType.name();
}
}
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