Class GetOnlineTrack

java.lang.Object

org.deltava.dao.DAO

org.deltava.dao.GetOnlineTrack

public class GetOnlineTrack
extends DAO

A Data Access Object to load VATSIM/IVAO data tracks. This DAO can load from the ONLINE_TRACKS table in each Airline's database, which stores track data already associated with a Flight Report. It can also load "raw" metadta from the online track database which contains information for all Airlines populated from the ServInfo feed by the OnlineTrackTask scheduled task.

Since:

2.4

Version:

11.1

Author:

Luke

Field Summary

Fields inherited from class DAO

_queryMax, _queryStart, _queryTimeout, WGS84_SRID

Modifier and Type	Field	Description
protected int	_queryMax	The maximum number of rows to return.
protected int	_queryStart	The row number at which to start returning results.
protected int	_queryTimeout	The query timeout, in seconds.
protected static final int	WGS84_SRID	The SRID used for geolocation queries.

Constructor Summary

Constructors

Constructor	Description
GetOnlineTrack(Connection c)	Initializes the Data Access Object.

Method Summary

Modifier and Type	Method	Description
SequencedCollection<PositionData>	get(int pirepID)	Fetches the track data for a particular Flight Report.
Collection<Integer>	getDisposedPIREPs()	Returns the Flight Report IDs for any disposed Flight Reports with an entry in the track table.
Collection<Instant>	getFetches(OnlineNetwork network, TimeSpan ts)	Displays data collections occurring within a given time span.
Collection<OnlineNetwork>	getFetchNetworks(TimeSpan ts)	Returns all Online Networks with an outage in a given time span.
Collection<PositionData>	getRaw(int trackID)	Fetches raw track data for a Pilot, for a flight between two airports in the time preceeding a specific date/time.
String	getRoute(int trackID)	Retrieves the filed route for a particular raw track.
int	getTrackID(int pilotID, OnlineNetwork net, Instant dt, Airport aD, Airport aA)	Determines whethere there is an existing raw track ID for a particular flight for a particular Pilot.
boolean	hasTrack(int pirepID)	An optimized method to determine if a Flight Report has online track data.

Methods inherited from class DAO

commitTransaction, createTimestamp, executeIDs, executeUpdate, executeUpdate, expandDate, formatDBName, formatLocation, getNewID, getQueryCount, prepare, prepareWithoutLimits, rollbackTransaction, setQueryMax, setQueryStart, setQueryTimeout, startTransaction, toID, toID, toInstant

Modifier and Type	Method	Description
protected void	commitTransaction()	Commits a multi-step transaction to the database.
protected static Timestamp	createTimestamp(Instant i)	Null-safe conversion of an Instant to a Timestamp.
protected static List<Integer>	executeIDs(PreparedStatement ps)	Helper method to extract database ID data from the result set.
protected static int	executeUpdate(PreparedStatement ps, int minUpdateCount)	Executes an UPDATE transaction on a prepared statement, and throws a SQLExceptionif less than the expected number of rows were updated.
protected static int	executeUpdate(PreparedStatement ps, int minPerUpdate, int minTotal)	Executes an batched UPDATE transaction on a prepared statement, and throws a SQLExceptionif less than the expected number of rows were updated per batch entry.
protected static Instant	expandDate(Date dt)	Converts a date-only JDBC value into a full timestamp.
protected static String	formatDBName(String db)	Formats a database name by converting to lowercase.
protected static String	formatLocation(GeoLocation loc)	Converts a geographic location into a MySQL WKT formatted point.
protected int	getNewID()	Returns the AUTO_INC column value generated by the previous JDBC transaction.
static final long	getQueryCount()	Returns the total number of queries executed since the JVM was started.
protected PreparedStatement	prepare(String sql)	Initialize the prepared statement with an arbitrary SQL statement.
protected PreparedStatement	prepareWithoutLimits(String sql)	Initialize the prepared statement with an abitrary SQL statement, without applying the DAO's query result limitations.
protected void	rollbackTransaction()	Rolls back a multi-step transaction before it is completed.
final void	setQueryMax(int maxRows)	Sets the maximum number of rows in the returned result set.
final void	setQueryStart(int rowStart)	Sets the first row of the results to return.
void	setQueryTimeout(int timeout)	Sets the timeout for any SQL operations.
protected void	startTransaction()	Marks the start of a multi-step database transaction.
protected static Integer	toID(Object o)	Converts a Database bean or an Integer into an Integer.
protected static Collection<Integer>	toID(Collection<?> ids)	Converts a collection of Objects into Integer IDs.
protected static Instant	toInstant(Timestamp dt)	Null-safe conversion of a Timestamp to an Instant.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GetOnlineTrack

public GetOnlineTrack(Connection c)

Initializes the Data Access Object.

Parameters:

c - the JDBC connection to use

Method Details

getTrackID

public int getTrackID(int pilotID,
 OnlineNetwork net,
 Instant dt,
 Airport aD,
 Airport aA)
               throws DAOException

Determines whethere there is an existing raw track ID for a particular flight for a particular Pilot.

Parameters:

pilotID - the Pilot's database ID

net - the OnlineNetwork to use

dt - the date/time to search before

aD - the departure Airport

aA - the arrival Airport

Returns:

the track ID, or zero if not found

Throws:

DAOException - if a JDBC error occurs

getRoute

public String getRoute(int trackID)
                throws DAOException

Retrieves the filed route for a particular raw track.

Parameters:

trackID - the raw track database ID

Returns:

the route, or null if not found

Throws:

DAOException - if a JDBC error occurs

getRaw

public Collection<PositionData> getRaw(int trackID)
                                throws DAOException

Fetches raw track data for a Pilot, for a flight between two airports in the time preceeding a specific date/time.

Parameters:

trackID - the track ID

Returns:

a Collection of PositionData beans

Throws:

DAOException - if a JDBC error occurs

hasTrack

public boolean hasTrack(int pirepID)
                 throws DAOException

An optimized method to determine if a Flight Report has online track data.

Parameters:

pirepID - the Flight Report database ID

Returns:

TRUE if track data exists, otherwise FALSE

Throws:

DAOException - if a JDBC error occurs

get

public SequencedCollection<PositionData> get(int pirepID)
                                      throws DAOException

Fetches the track data for a particular Flight Report.

Parameters:

pirepID - the Flight Report database ID

Returns:

a Collection of PositionData beans

Throws:

DAOException - if a JDBC error occurs

getFetches

public Collection<Instant> getFetches(OnlineNetwork network,
 TimeSpan ts)
                               throws DAOException

Displays data collections occurring within a given time span.

Parameters:

network - the OnlineNetwork

ts - the TimeSpan

Returns:

a Collection of fetch Instants

Throws:

DAOException - if a JDBC error occurs

getFetchNetworks

public Collection<OnlineNetwork> getFetchNetworks(TimeSpan ts)
                                           throws DAOException

Returns all Online Networks with an outage in a given time span.

Parameters:

ts - the TimeSpan

Returns:

a Collection of OnlineNetwork beans

Throws:

DAOException - if a JDBC error occurs

getDisposedPIREPs

public Collection<Integer> getDisposedPIREPs()
                                      throws DAOException

Returns the Flight Report IDs for any disposed Flight Reports with an entry in the track table.

Returns:

a Collection of Flight Report IDs

Throws:

DAOException - if a JDBC error occurs