agi.foundation.stk

(agi.foundation.models-2024r3.jar)

Class StkCityDatabase

java.lang.Object

agi.foundation.stk.StkCityDatabase

public class StkCityDatabase
extends Object

Provides access to an STK city database.

The following example shows how to query the city database for cities matching certain criteria:

StkCityDatabase db = new StkCityDatabase(dbDirectory, "stkCityDb");

// Create a query object and then populate it with the properties to query on.
// Regular expressions are used to query on strings.
StkCityDatabaseQuery query = new StkCityDatabaseQuery();
query.setCityName(Pattern.compile("Philadelphia"));

// only look in PA, because there's also a New Philadelphia in Ohio
query.setProvinceName(Pattern.compile("Pennsylvania"));

// Get the database entries matching the query and print out the Longitude and Latitude of each.
for (StkCityDatabaseEntry entry : db.getEntries(query)) {
    System.out.format("%s: Longitude %f, Latitude %f%n", entry.getCityName(), entry.getLongitude(), entry.getLatitude());
}

Constructor Summary

Constructors

Constructor and Description
StkCityDatabase(String directory, String baseFileName) Initializes a new instance.

Method Summary

Modifier and Type	Method and Description
ArrayList<String>	getCentralBodies() Gets the central bodies in the database.
ArrayList<String>	getCityTypes() Gets the types of cities in the database.
ArrayList<String>	getCountries() Gets the countries in the database.
ArrayList<StkCityDatabaseEntry>	getEntries() Gets all of the entries in the database.
ArrayList<StkCityDatabaseEntry>	getEntries(StkCityDatabaseQuery query) Gets all of the entries in the database matching a specified query.
GregorianDate	getLastUpdateDate() Gets the last update date reported in the Generic Database (.gd) file, or GregorianDate.MinValue if the file does not exist or does not contain a LastUpdate field.
String	getVersion() Gets the version number reported in the Generic Database (.gd) file, or "Unknown" if the file does not exist or does not contain a Version field.

Methods inherited from class java.lang.Object

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

Constructor Detail

StkCityDatabase

public StkCityDatabase(@Nonnull
                       String directory,
                       @Nonnull
                       String baseFileName)

Initializes a new instance.

Parameters:

directory - The directory in which the city database is located.

baseFileName - The base filename (without extension) of the database within the directory.

Throws:

ArgumentNullException - Thrown when directory or baseFileName is null.

Method Detail

getVersion

public final String getVersion()

Gets the version number reported in the Generic Database (.gd) file, or "Unknown" if the file does not exist or does not contain a Version field.

getLastUpdateDate

@Nonnull
public final GregorianDate getLastUpdateDate()

Gets the last update date reported in the Generic Database (.gd) file, or GregorianDate.MinValue if the file does not exist or does not contain a LastUpdate field.

getCountries

@Nonnull
public final ArrayList<String> getCountries()

Gets the countries in the database.

Returns:

A list of the countries in the database.

getCentralBodies

@Nonnull
public final ArrayList<String> getCentralBodies()

Gets the central bodies in the database.

Returns:

A list of the central bodies in the database.

getCityTypes

@Nonnull
public final ArrayList<String> getCityTypes()

Gets the types of cities in the database.

Returns:

A list of types of cities in the database.

getEntries

@Nonnull
public final ArrayList<StkCityDatabaseEntry> getEntries()

Gets all of the entries in the database.

Returns:

A list of entries in the database.

getEntries

@Nonnull
public final ArrayList<StkCityDatabaseEntry> getEntries(@Nullable
                                                                  StkCityDatabaseQuery query)

Gets all of the entries in the database matching a specified query.

Parameters:

query - The query that returned entries must match, or null to return all entries.

Returns:

A list of entries in the database that match the query.

Throws:

InvalidDataException - Thrown when a required data file was not found.