Package org.noise_planet.noisemodelling.jdbc.railway

Class RailWayLWIterator

java.lang.Object

org.noise_planet.noisemodelling.jdbc.railway.RailWayLWIterator

All Implemented Interfaces:

Iterator<RailWayLWGeom>

public class RailWayLWIterator
extends Object
implements Iterator<RailWayLWGeom>

Field Summary

Fields

Modifier and Type	Field	Description
static final String	RAILWAY_EMISSION_CNOSSOS_JSON
static final String	RAILWAY_TRAINSETS_JSON
static final String	RAILWAY_VEHICLES_CNOSSOS_JSON
Map<String,Integer>	sourceFields

Constructor Summary

Constructors

Constructor	Description
RailWayLWIterator(Connection connection, String tableTrackGeometry, String tableTrainTraffic)	Generate sound source for train (with train source directivity) from traffic and geometry tracks tables
RailWayLWIterator(Connection connection, String tableTrackGeometry, String tableTrainTraffic, String vehicleDataFile, String trainSetDataFile, String railwayEmissionDataFile)	Generate sound source for train (with train source directivity) from traffic and geometry tracks tables Constructs a RailWayLWIterator instance to process railway data by reading from a database connection and associated data files.

Method Summary

Modifier and Type	Method	Description
RailWayLWGeom	current()
RailWayCnossosParameters	getRailwayEmissionFromResultSet(ResultSet rs, String period)	Retrieves railway emission parameters from the given ResultSet for a specified period.
static boolean	hasColumn(org.h2gis.utilities.SpatialResultSet rs, String columnName)	Check if a specified column exists in the given SpatialResultSet
boolean	hasNext()
RailWayLWGeom	next()	Retrieves the next RailWayLWGeom object in the sequence

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Field Details

RAILWAY_VEHICLES_CNOSSOS_JSON

public static final String RAILWAY_VEHICLES_CNOSSOS_JSON

See Also:

• Constant Field Values

RAILWAY_TRAINSETS_JSON

public static final String RAILWAY_TRAINSETS_JSON

See Also:

• Constant Field Values

RAILWAY_EMISSION_CNOSSOS_JSON

public static final String RAILWAY_EMISSION_CNOSSOS_JSON

See Also:

• Constant Field Values

sourceFields

public Map<String,Integer> sourceFields

Constructor Details

RailWayLWIterator

public RailWayLWIterator(Connection connection,
 String tableTrackGeometry,
 String tableTrainTraffic)
                  throws IOException

Generate sound source for train (with train source directivity) from traffic and geometry tracks tables

Parameters:

connection -

tableTrackGeometry - Track geometry and metadata

tableTrainTraffic - Train traffic associated with tracks

Throws:

IOException

RailWayLWIterator

public RailWayLWIterator(Connection connection,
 String tableTrackGeometry,
 String tableTrainTraffic,
 String vehicleDataFile,
 String trainSetDataFile,
 String railwayEmissionDataFile)
                  throws IOException

Generate sound source for train (with train source directivity) from traffic and geometry tracks tables Constructs a RailWayLWIterator instance to process railway data by reading from a database connection and associated data files. Initializes the railway metadata and fetches the first incomplete railway geometry.

Parameters:

connection - Database connection used to fetch railway and traffic data.

tableTrackGeometry - Table name containing track geometry and metadata.

tableTrainTraffic - Table name containing train traffic details associated with tracks.

vehicleDataFile - File path Url or resource filename (from org.noise_planet.noisemodelling.emission.railway package) for vehicle data configuration.

trainSetDataFile - File path Url or resource filename (from org.noise_planet.noisemodelling.emission.railway package) for train set data configuration.

railwayEmissionDataFile - File path Url or resource filename (from org.noise_planet.noisemodelling.emission.railway package) for railway metadata configuration.

Throws:

IOException - If an error occurs during file reading or parsing the specified data files.

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<RailWayLWGeom>

hasColumn

public static boolean hasColumn(org.h2gis.utilities.SpatialResultSet rs,
 String columnName)
                         throws SQLException

Check if a specified column exists in the given SpatialResultSet

Parameters:

rs -

columnName -

Returns:

"true" if the specified column name exists in the result set; "false" otherwise.

Throws:

SQLException

next

public RailWayLWGeom next()

Retrieves the next RailWayLWGeom object in the sequence

Specified by:

next in interface Iterator<RailWayLWGeom>

Returns:

the current RailWayLWGeom object.

current

public RailWayLWGeom current()

getRailwayEmissionFromResultSet

public RailWayCnossosParameters getRailwayEmissionFromResultSet(ResultSet rs,
 String period)
                                                         throws SQLException,
IOException

Retrieves railway emission parameters from the given ResultSet for a specified period.

Parameters:

rs - result set of source

period - Day or Evening or Night

Returns:

Emission spectrum in dB

Throws:

SQLException

IOException