eu.slipo.athenarc.triplegeo.tools

Class OsmPbfToRdf

java.lang.Object

eu.slipo.athenarc.triplegeo.tools.OsmPbfToRdf

All Implemented Interfaces:

java.lang.AutoCloseable, org.openstreetmap.osmosis.core.lifecycle.Closeable, org.openstreetmap.osmosis.core.lifecycle.Completable, org.openstreetmap.osmosis.core.task.common.Task, org.openstreetmap.osmosis.core.task.v0_6.Initializable, org.openstreetmap.osmosis.core.task.v0_6.Sink

public class OsmPbfToRdf
extends java.lang.Object
implements org.openstreetmap.osmosis.core.task.v0_6.Sink

Entry point to convert OpenStreetMap (OSM) PBF (compressed) files into RDF triples using Osmosis. LIMITATIONS: - Depending on system and JVM resources, transformation can handle only a moderate amount of OSM features. - RML transformation mode not currently supported.

Version:

2.0

Author:

Kostas Patroumpas

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Classification	classification
private static org.opengis.referencing.crs.CRSAuthorityFactory	crsFactory
private Configuration	currentConfig
private com.vividsolutions.jts.geom.GeometryFactory	geometryFactory
private boolean	inNode
private java.lang.String	inputFile
private boolean	inRelation
private boolean	inWay
private boolean	keepIndexed
(package private) Assistant	myAssistant
(package private) ValueChecker	myChecker
(package private) Converter	myConverter
private OSMNode	nodeTmp
(package private) long	numNamedEntities
(package private) long	numNodes
(package private) long	numRelations
(package private) long	numWays
private java.lang.String	outputFile
(package private) crosby.binary.osmosis.OsmosisReader	reader
private OSMRecordBuilder	recBuilder
private OSMRelation	relationTmp
private org.opengis.referencing.operation.MathTransform	reproject
private boolean	rescanRelations
private boolean	scanRelations
private boolean	scanWays
(package private) int	sourceSRID
private java.util.Set<java.lang.String>	tags
(package private) int	targetSRID
private OSMWay	wayTmp

Constructor Summary

Constructors

Constructor and Description
OsmPbfToRdf(Configuration config, java.lang.String inFile, java.lang.String outFile, int sourceSRID, int targetSRID) Constructor for the transformation process from OpenStreetMap PBF file to RDF.

Method Summary

Modifier and Type	Method and Description
void	apply() Applies transformation according to the configuration settings.
void	close() Closes the parsing process.
void	complete() Completes the parsing process.
void	initialize(java.util.Map<java.lang.String,java.lang.Object> metaData) Initializes the Osmosis object.
private void	parse() Instantiates and calls an Osmosis parser to identify OSM elements.
void	parseDocument() Calls Osmosis to parse the input PBF file.
void	process(org.openstreetmap.osmosis.core.container.v0_6.EntityContainer entityContainer) Processes an OSM element (node, way, or relation).

Methods inherited from class java.lang.Object

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

Field Detail

myConverter

Converter myConverter

myAssistant

Assistant myAssistant

myChecker

ValueChecker myChecker

reproject

private org.opengis.referencing.operation.MathTransform reproject

sourceSRID

int sourceSRID

targetSRID

int targetSRID

currentConfig

private Configuration currentConfig

inputFile

private java.lang.String inputFile

outputFile

private java.lang.String outputFile

reader

crosby.binary.osmosis.OsmosisReader reader

classification

Classification classification

crsFactory

private static final org.opengis.referencing.crs.CRSAuthorityFactory crsFactory

numNodes

long numNodes

numWays

long numWays

numRelations

long numRelations

numNamedEntities

long numNamedEntities

geometryFactory

private com.vividsolutions.jts.geom.GeometryFactory geometryFactory

recBuilder

private OSMRecordBuilder recBuilder

nodeTmp

private OSMNode nodeTmp

wayTmp

private OSMWay wayTmp

relationTmp

private OSMRelation relationTmp

tags

private java.util.Set<java.lang.String> tags

inWay

private boolean inWay

inNode

private boolean inNode

inRelation

private boolean inRelation

scanWays

private boolean scanWays

scanRelations

private boolean scanRelations

rescanRelations

private boolean rescanRelations

keepIndexed

private boolean keepIndexed

Constructor Detail

OsmPbfToRdf

public OsmPbfToRdf(Configuration config,
                   java.lang.String inFile,
                   java.lang.String outFile,
                   int sourceSRID,
                   int targetSRID)

Constructor for the transformation process from OpenStreetMap PBF file to RDF.

Parameters:

config - Parameters to configure the transformation.

inFile - Path to input OSM XML file.

outFile - Path to the output file that collects RDF triples.

sourceSRID - Spatial reference system (EPSG code) of the input OSM XML file.

targetSRID - Spatial reference system (EPSG code) of geometries in the output RDF triples.

Method Detail

parseDocument

public void parseDocument()

Calls Osmosis to parse the input PBF file.

parse

private void parse()

Instantiates and calls an Osmosis parser to identify OSM elements.

initialize

public void initialize(java.util.Map<java.lang.String,java.lang.Object> metaData)

Initializes the Osmosis object.

Specified by:

initialize in interface org.openstreetmap.osmosis.core.task.v0_6.Initializable

Parameters:

metaData - Meta data applicable to this pipeline invocation.

process

public void process(org.openstreetmap.osmosis.core.container.v0_6.EntityContainer entityContainer)

Processes an OSM element (node, way, or relation).

Specified by:

process in interface org.openstreetmap.osmosis.core.task.v0_6.Sink

Parameters:

entityContainer - Container of an OSM node, way, or relation.

complete

public void complete()

Completes the parsing process.

Specified by:

complete in interface org.openstreetmap.osmosis.core.lifecycle.Completable

close

public void close()

Closes the parsing process.

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface org.openstreetmap.osmosis.core.lifecycle.Closeable

apply

public void apply()

Applies transformation according to the configuration settings.