Class GetACARSOnTime

java.lang.Object

org.deltava.dao.DAO

org.deltava.dao.GetACARSOnTime

public class GetACARSOnTime
extends DAO

A Data Access Object to load ACARS on-time data from the database.

Since:

8.4

Version:

10.3

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
GetACARSOnTime(Connection c)	Initializes the Data Access Object.

Method Summary

Modifier and Type	Method	Description
Collection<OnTimeStatsEntry>	getByDate(int maxDays)	Retrieves airline-wide on-time flight statistics.
ScheduleEntry	getOnTime(ACARSFlightReport afr)	Loads on-time data.
Map<OnTime,Integer>	getOnTimeStatistics(int pilotID)	Retrieves aggregated on-time performance values for a Pilot.
OnTimeStatsEntry	getOnTimeStatistics(RoutePair rp, String db)	Returns on-time flight statistics for a particular flight route.

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

GetACARSOnTime

public GetACARSOnTime(Connection c)

Initializes the Data Access Object.

Parameters:

c - the JDBC connection to use

Method Details

getOnTime

public ScheduleEntry getOnTime(ACARSFlightReport afr)
                        throws DAOException

Loads on-time data. The flight report will have its departure and arrival times set.

Parameters:

afr - the ACARSFlightReport

Returns:

a ScheduleEntry, or null if not found

Throws:

DAOException - if a JDBC error occurs

getOnTimeStatistics

public Map<OnTime,Integer> getOnTimeStatistics(int pilotID)
                                        throws DAOException

Retrieves aggregated on-time performance values for a Pilot.

Parameters:

pilotID - the Pilot's database ID, or zero for the entire airline

Returns:

a Map of Flight counts, keyed by OnTime values

Throws:

DAOException - if a JDBC error occurs

getByDate

public Collection<OnTimeStatsEntry> getByDate(int maxDays)
                                       throws DAOException

Retrieves airline-wide on-time flight statistics.

Parameters:

maxDays - the maximum number of days in the past to retrieve

Returns:

a Collection of OnTimeStatsEntry beans

Throws:

DAOException - if a JDBC error occurs

getOnTimeStatistics

public OnTimeStatsEntry getOnTimeStatistics(RoutePair rp,
 String db)
                                     throws DAOException

Returns on-time flight statistics for a particular flight route.

Parameters:

rp - the RoutePair

db - the database name

Returns:

an OnlineStatsEntry bean

Throws:

DAOException - if a JDBC error occurs