mil.nga.geopackage.features

Class OAPIFeatureCoreGenerator

java.lang.Object

mil.nga.geopackage.features.FeatureCoreGenerator

mil.nga.geopackage.features.OAPIFeatureCoreGenerator

public abstract class OAPIFeatureCoreGenerator
extends FeatureCoreGenerator

OGC API Features Generator

Author:

osbornb

Field Summary

Fields

Modifier and Type	Field and Description
protected static Projections	DEFAULT_PROJECTIONS Default projections
protected int	downloadAttempts Download attempts per feature request
protected static String	EPSG_VERSION EPSG CRS Version
protected String	id Identifier (name) of a specific collection
protected Integer	limit The optional limit parameter limits the number of items that are presented in the response document.
protected static Pattern	LIMIT_PATTERN Limit pattern
protected static Projection	OGC_CRS84 OGC CRS84 Projection
protected static String	OGC_VERSION OGC CRS Version
protected String	period Time period string that adheres to RFC 3339
protected String	server Base server url
protected String	time Either a date-time or a period string that adheres to RFC 3339
protected Integer	totalLimit Total limit of number of items to request

Fields inherited from class mil.nga.geopackage.features.FeatureCoreGenerator

boundingBox, boundingBoxProjection, columns, EPSG_WGS84, geometryColumns, geoPackage, progress, projection, srs, tableName, transactionLimit

Constructor Summary

Constructors

Constructor and Description
OAPIFeatureCoreGenerator(GeoPackageCore geoPackage, String tableName, String server, String id) Constructor

Method Summary

Modifier and Type	Method and Description
protected String	buildCollectionRequestUrl() Build the collection request URL
Collection	collectionRequest() Collection request
protected Collection	collectionRequest(String url) Collection request for the provided URL
protected void	createFeature(Feature feature) Create the feature
protected int	createFeatures(FeatureCollection featureCollection) Create features from the feature collection
protected FeatureCollection	createFeatures(String features) Create features in the feature DAO from the features value
int	generateFeatures() Generate the features
int	generateFeatures(String urlString, int currentCount) Generate features
protected Crs	getCrs(Projection projection) Get the CRS from the projection
int	getDownloadAttempts() Get the number of download attempts
String	getId() Get the collection id
Integer	getLimit() Get the limit
String	getPeriod() Get the time period
Projections	getProjections() Get the supported projections
Projections	getProjections(Collection collection) Get the supported projections
Projections	getProjections(String url) Get the supported projections
String	getServer() Get the server
protected Projection	getSrsProjection() Get the projection for creating the Spatial Reference System
String	getTime() Get the time
Integer	getTotalLimit() Get the total limit
boolean	isDefaultProjection(Projection projection) Check if the projection is a default projection
boolean	requestProjection(Projection projection) Determine if the projection should be requested from the server
void	setDownloadAttempts(int downloadAttempts) Set the number of download attempts
void	setLimit(Integer limit) Set the limit
void	setPeriod(Date period) Set the time period
void	setPeriod(String period) Set the time period
void	setTime(Date time) Set the time
void	setTime(String time) Set the time
void	setTotalLimit(Integer totalLimit) Set the total limit
protected String	urlRequest(String urlValue) URL request
protected String	urlRequest(String urlValue, URL url) Perform a URL request

Methods inherited from class mil.nga.geopackage.features.FeatureCoreGenerator

addColumn, addProjection, createColumn, createFeature, createGeometryData, createProjection, createSrs, createTable, getBoundingBox, getBoundingBoxProjection, getColumn, getColumns, getGeometryColumns, getGeoPackage, getProgress, getProjection, getSrs, getTableName, getTransactionLimit, getType, getValue, getValue, initializeTable, isActive, saveFeature, setBoundingBox, setBoundingBoxProjection, setProgress, setProjection, setTransactionLimit

Methods inherited from class java.lang.Object

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

Field Detail

LIMIT_PATTERN

protected static final Pattern LIMIT_PATTERN

Limit pattern

OGC_CRS84

protected static final Projection OGC_CRS84

OGC CRS84 Projection

OGC_VERSION

protected static final String OGC_VERSION

OGC CRS Version

See Also:

Constant Field Values

EPSG_VERSION

protected static final String EPSG_VERSION

EPSG CRS Version

See Also:

Constant Field Values

DEFAULT_PROJECTIONS

protected static final Projections DEFAULT_PROJECTIONS

Default projections

server

protected final String server

Base server url

id

protected final String id

Identifier (name) of a specific collection

limit

protected Integer limit

The optional limit parameter limits the number of items that are presented in the response document.

time

protected String time

Either a date-time or a period string that adheres to RFC 3339

period

protected String period

Time period string that adheres to RFC 3339

totalLimit

protected Integer totalLimit

Total limit of number of items to request

downloadAttempts

protected int downloadAttempts

Download attempts per feature request

Constructor Detail

OAPIFeatureCoreGenerator

public OAPIFeatureCoreGenerator(GeoPackageCore geoPackage,
                                String tableName,
                                String server,
                                String id)

Constructor

Parameters:

geoPackage - GeoPackage

tableName - table name

server - server url

id - collection identifier

Method Detail

getServer

public String getServer()

Get the server

Returns:

server

getId

public String getId()

Get the collection id

Returns:

collection id

getLimit

public Integer getLimit()

Get the limit

Returns:

limit

setLimit

public void setLimit(Integer limit)

Set the limit

Parameters:

limit - limit

getTime

public String getTime()

Get the time

Returns:

time

setTime

public void setTime(String time)

Set the time

Parameters:

time - time

setTime

public void setTime(Date time)

Set the time

Parameters:

time - time

getPeriod

public String getPeriod()

Get the time period

Returns:

period

setPeriod

public void setPeriod(String period)

Set the time period

Parameters:

period - period

setPeriod

public void setPeriod(Date period)

Set the time period

Parameters:

period - period

getTotalLimit

public Integer getTotalLimit()

Get the total limit

Returns:

total limit

setTotalLimit

public void setTotalLimit(Integer totalLimit)

Set the total limit

Parameters:

totalLimit - total limit

getDownloadAttempts

public int getDownloadAttempts()

Get the number of download attempts

Returns:

download attempts

setDownloadAttempts

public void setDownloadAttempts(int downloadAttempts)

Set the number of download attempts

Parameters:

downloadAttempts - download attempts

getSrsProjection

protected Projection getSrsProjection()

Get the projection for creating the Spatial Reference System

Overrides:

getSrsProjection in class FeatureCoreGenerator

Returns:

projection

createFeature

protected void createFeature(Feature feature)
                      throws SQLException

Create the feature

Parameters:

feature - feature

Throws:

SQLException - upon error

generateFeatures

public int generateFeatures()
                     throws SQLException

Generate the features

Specified by:

generateFeatures in class FeatureCoreGenerator

Returns:

generated count

Throws:

SQLException - upon error

buildCollectionRequestUrl

protected String buildCollectionRequestUrl()

Build the collection request URL

Returns:

url

getProjections

public Projections getProjections()

Get the supported projections

Returns:

projections

getProjections

public Projections getProjections(String url)

Get the supported projections

Parameters:

url - URL

Returns:

projections

getProjections

public Projections getProjections(Collection collection)

Get the supported projections

Parameters:

collection - collection

Returns:

projections

requestProjection

public boolean requestProjection(Projection projection)

Determine if the projection should be requested from the server

Parameters:

projection - projection

Returns:

true to request the projection (non null and non default)

isDefaultProjection

public boolean isDefaultProjection(Projection projection)

Check if the projection is a default projection

Parameters:

projection - projection

Returns:

true if default projection

collectionRequest

public Collection collectionRequest()

Collection request

Returns:

collection

collectionRequest

protected Collection collectionRequest(String url)

Collection request for the provided URL

Parameters:

url - url value

Returns:

collection

generateFeatures

public int generateFeatures(String urlString,
                            int currentCount)
                     throws SQLException

Generate features

Parameters:

urlString - URL

currentCount - current count

Returns:

current result count

Throws:

SQLException - upon failure

urlRequest

protected String urlRequest(String urlValue)

URL request

Parameters:

urlValue - URL value

Returns:

response string

urlRequest

protected String urlRequest(String urlValue,
                            URL url)

Perform a URL request

Parameters:

urlValue - URL string value

url - URL

Returns:

features response

createFeatures

protected FeatureCollection createFeatures(String features)
                                    throws SQLException

Create features in the feature DAO from the features value

Parameters:

features - features json

Returns:

feature collection

Throws:

SQLException - upon error

createFeatures

protected int createFeatures(FeatureCollection featureCollection)

Create features from the feature collection

Parameters:

featureCollection - feature collection

Returns:

features created

getCrs

protected Crs getCrs(Projection projection)

Get the CRS from the projection

Parameters:

projection - projection

Returns:

crs