Package org.openstreetmap.josm.io

Class GeoJSONReader

java.lang.Object

org.openstreetmap.josm.io.AbstractReader

org.openstreetmap.josm.io.GeoJSONReader

public class GeoJSONReader
extends AbstractReader

Reader that reads GeoJSON files. See RFC7946 for more information.

Since:

15424

Nested Class Summary

Nested classes/interfaces inherited from class org.openstreetmap.josm.io.AbstractReader

AbstractReader.BinaryParserWorker, AbstractReader.CommonReader, AbstractReader.NodeReader, AbstractReader.ParserWorker, AbstractReader.RelationReader, AbstractReader.WayReader

Field Summary

Fields

Modifier and Type	Field	Description
private static java.lang.String	COORDINATES
private static java.lang.String	CRS
private static java.lang.String	CRS_GEOJSON	WGS 84 is the specified CRS for geojson -- alternate coordinate systems are considered to be deprecated from GJ2008.
private static java.lang.String	FEATURES
private static java.lang.String	GEOMETRY
private static java.lang.String	LINK
private static java.lang.String	NAME
private Projection	projection
private static java.lang.String	PROPERTIES
private static byte	RECORD_SEPARATOR_BYTE	The record separator is 0x1E per RFC 7464
private static java.lang.String	TYPE

Fields inherited from class org.openstreetmap.josm.io.AbstractReader

cancel, ds, externalIdMap, relations, uploadChangeset, ways

Constructor Summary

Constructors

Constructor	Description
GeoJSONReader()

Method Summary

Modifier and Type	Method	Description
private Node	createNode(LatLon latlon)
private java.util.Optional<Way>	createWay(jakarta.json.JsonArray coordinates, boolean autoClose)
protected DataSet	doParseDataSet(java.io.InputStream source, ProgressMonitor progressMonitor)
private static <O extends OsmPrimitive> O	fillTagsFromFeature(jakarta.json.JsonObject feature, O primitive)	Merge existing tags in primitive (if any) with the values given in the GeoJSON feature.
private LatLon	getLatLon(jakarta.json.JsonArray coordinates)
private static TagCollection	getTags(jakarta.json.JsonObject feature)
private static boolean	isLineDelimited(java.io.InputStream source)	Check if the inputstream follows RFC 7464
private static TagCollection	mergeAllTagValues(OsmPrimitive primitive, TagCollection featureTags)
private void	mergeEqualMultipolygonWays()	Import may create duplicate ways were one is member of a multipolygon and untagged and the other is tagged.
private void	parse(jakarta.json.stream.JsonParser parser)
private static double	parseCoordinate(jakarta.json.JsonValue coordinate)
private void	parseCrs(jakarta.json.JsonObject crs)	Parse CRS as per https://geojson.org/geojson-spec.html#coordinate-reference-system-objects.
static DataSet	parseDataSet(java.io.InputStream source, ProgressMonitor progressMonitor)	Parse the given input source and return the dataset.
private java.util.Optional<? extends OsmPrimitive>	parseFeature(jakarta.json.JsonObject feature)
private java.util.Optional<? extends OsmPrimitive>	parseFeatureCollection(jakarta.json.JsonArray features, boolean createRelation)
private java.util.Optional<? extends OsmPrimitive>	parseGeometry(jakarta.json.JsonObject feature, jakarta.json.JsonObject geometry)
private java.util.Optional<Relation>	parseGeometryCollection(jakarta.json.JsonObject feature, jakarta.json.JsonObject geometry, boolean createRelation)
private java.util.Optional<Way>	parseLineString(jakarta.json.JsonObject feature, jakarta.json.JsonArray coordinates)
private java.util.Optional<Relation>	parseMultiLineString(jakarta.json.JsonObject feature, jakarta.json.JsonObject geometry)
private java.util.Optional<Relation>	parseMultiPoint(jakarta.json.JsonObject feature, jakarta.json.JsonObject geometry)
private java.util.Optional<Relation>	parseMultiPolygon(jakarta.json.JsonObject feature, jakarta.json.JsonObject geometry)
private java.util.Optional<? extends OsmPrimitive>	parseNonGeometryFeature(jakarta.json.JsonObject feature, jakarta.json.JsonObject properties)
private static void	parseNullGeometry(jakarta.json.JsonObject feature)
private java.util.Optional<Node>	parsePoint(jakarta.json.JsonObject feature, jakarta.json.JsonArray coordinates)
private java.util.Optional<? extends OsmPrimitive>	parsePolygon(jakarta.json.JsonObject feature, jakarta.json.JsonArray coordinates)
private void	parseRoot(jakarta.json.JsonObject object)
private static void	parseUnknown(jakarta.json.JsonObject object)

Methods inherited from class org.openstreetmap.josm.io.AbstractReader

buildPrimitive, callPostProcessors, deregisterPostprocessor, doParseDataSet, doParseDataSet, getDataSet, getLong, parseAction, parseBounds, parseChangeset, parseChangeset, parseDownloadPolicy, parseId, parseLocked, parseNode, parseNode, parseRelation, parseRelationMember, parseRelationMember, parseTag, parseTimestamp, parseUploadPolicy, parseUser, parseUser, parseVersion, parseVersion, parseVersion, parseVisible, parseWay, prepareDataSet, processChangesetAfterParsing, processNodesAfterParsing, processRelationsAfterParsing, processWaysAfterParsing, registerPostprocessor

Methods inherited from class java.lang.Object

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

Field Detail

CRS

private static final java.lang.String CRS

See Also:

Constant Field Values

NAME

private static final java.lang.String NAME

See Also:

Constant Field Values

LINK

private static final java.lang.String LINK

See Also:

Constant Field Values

COORDINATES

private static final java.lang.String COORDINATES

See Also:

Constant Field Values

FEATURES

private static final java.lang.String FEATURES

See Also:

Constant Field Values

PROPERTIES

private static final java.lang.String PROPERTIES

See Also:

Constant Field Values

GEOMETRY

private static final java.lang.String GEOMETRY

See Also:

Constant Field Values

TYPE

private static final java.lang.String TYPE

See Also:

Constant Field Values

RECORD_SEPARATOR_BYTE

private static final byte RECORD_SEPARATOR_BYTE

The record separator is 0x1E per RFC 7464

See Also:

Constant Field Values

CRS_GEOJSON

private static final java.lang.String CRS_GEOJSON

WGS 84 is the specified CRS for geojson -- alternate coordinate systems are considered to be deprecated from GJ2008.

See Also:

Constant Field Values

projection

private Projection projection

Constructor Detail

GeoJSONReader

GeoJSONReader()

Method Detail

parse

private void parse(jakarta.json.stream.JsonParser parser)
            throws IllegalDataException

Throws:

IllegalDataException

parseRoot

private void parseRoot(jakarta.json.JsonObject object)
                throws IllegalDataException

Throws:

IllegalDataException

parseCrs

private void parseCrs(jakarta.json.JsonObject crs)
               throws IllegalDataException

Parse CRS as per https://geojson.org/geojson-spec.html#coordinate-reference-system-objects. CRS are obsolete in RFC7946 but still allowed for interoperability with older applications. Only named CRS are supported.

Parameters:

crs - CRS JSON object

Throws:

IllegalDataException - in case of error

parseFeatureCollection

private java.util.Optional<? extends OsmPrimitive> parseFeatureCollection(jakarta.json.JsonArray features,
                                                                          boolean createRelation)

parseFeature

private java.util.Optional<? extends OsmPrimitive> parseFeature(jakarta.json.JsonObject feature)

parseNonGeometryFeature

private java.util.Optional<? extends OsmPrimitive> parseNonGeometryFeature(jakarta.json.JsonObject feature,
                                                                           jakarta.json.JsonObject properties)

parseGeometryCollection

private java.util.Optional<Relation> parseGeometryCollection(jakarta.json.JsonObject feature,
                                                             jakarta.json.JsonObject geometry,
                                                             boolean createRelation)

parseGeometry

private java.util.Optional<? extends OsmPrimitive> parseGeometry(jakarta.json.JsonObject feature,
                                                                 jakarta.json.JsonObject geometry)

getLatLon

private LatLon getLatLon(jakarta.json.JsonArray coordinates)

parseCoordinate

private static double parseCoordinate(jakarta.json.JsonValue coordinate)

parsePoint

private java.util.Optional<Node> parsePoint(jakarta.json.JsonObject feature,
                                            jakarta.json.JsonArray coordinates)

parseMultiPoint

private java.util.Optional<Relation> parseMultiPoint(jakarta.json.JsonObject feature,
                                                     jakarta.json.JsonObject geometry)

parseLineString

private java.util.Optional<Way> parseLineString(jakarta.json.JsonObject feature,
                                                jakarta.json.JsonArray coordinates)

parseMultiLineString

private java.util.Optional<Relation> parseMultiLineString(jakarta.json.JsonObject feature,
                                                          jakarta.json.JsonObject geometry)

parsePolygon

private java.util.Optional<? extends OsmPrimitive> parsePolygon(jakarta.json.JsonObject feature,
                                                                jakarta.json.JsonArray coordinates)

parseMultiPolygon

private java.util.Optional<Relation> parseMultiPolygon(jakarta.json.JsonObject feature,
                                                       jakarta.json.JsonObject geometry)

createNode

private Node createNode(LatLon latlon)

createWay

private java.util.Optional<Way> createWay(jakarta.json.JsonArray coordinates,
                                          boolean autoClose)

fillTagsFromFeature

private static <O extends OsmPrimitive> O fillTagsFromFeature(jakarta.json.JsonObject feature,
                                                              O primitive)

Merge existing tags in primitive (if any) with the values given in the GeoJSON feature.

Type Parameters:

O - The primitive type

Parameters:

feature - the GeoJSON feature

primitive - the OSM primitive

Returns:

The primitive passed in as primitive for easier chaining

mergeAllTagValues

private static TagCollection mergeAllTagValues(OsmPrimitive primitive,
                                               TagCollection featureTags)

parseUnknown

private static void parseUnknown(jakarta.json.JsonObject object)

parseNullGeometry

private static void parseNullGeometry(jakarta.json.JsonObject feature)

getTags

private static TagCollection getTags(jakarta.json.JsonObject feature)

isLineDelimited

private static boolean isLineDelimited(java.io.InputStream source)

Check if the inputstream follows RFC 7464

Parameters:

source - The source to check (should be at the beginning)

Returns:

true if the initial character is RECORD_SEPARATOR_BYTE.

doParseDataSet

protected DataSet doParseDataSet(java.io.InputStream source,
                                 ProgressMonitor progressMonitor)
                          throws IllegalDataException

Specified by:

doParseDataSet in class AbstractReader

Throws:

IllegalDataException

mergeEqualMultipolygonWays

private void mergeEqualMultipolygonWays()

Import may create duplicate ways were one is member of a multipolygon and untagged and the other is tagged. Try to merge them here.

parseDataSet

public static DataSet parseDataSet(java.io.InputStream source,
                                   ProgressMonitor progressMonitor)
                            throws IllegalDataException

Parse the given input source and return the dataset.

Parameters:

source - the source input stream. Must not be null.

progressMonitor - the progress monitor. If null, NullProgressMonitor.INSTANCE is assumed

Returns:

the dataset with the parsed data

Throws:

IllegalDataException - if an error was found while parsing the data from the source

java.lang.IllegalArgumentException - if source is null