eu.slipo.athenarc.triplegeo.tools

Class ShpToRdf

java.lang.Object

eu.slipo.athenarc.triplegeo.tools.ShpToRdf

public class ShpToRdf
extends java.lang.Object

Entry point to convert ESRI shapefiles into RDF triples.

Version:

2.0

Author:

Kostas Patroumpas

Field Summary

Fields

Modifier and Type	Field and Description
private Classification	classification
private static org.opengis.referencing.crs.CRSAuthorityFactory	crsFactory
private Configuration	currentConfig
(package private) org.geotools.data.DataStore	dataStore
(package private) java.lang.String	inputFile
(package private) Assistant	myAssistant
(package private) Converter	myConverter
(package private) java.lang.String	outputFile
private org.opengis.referencing.operation.MathTransform	reproject
(package private) int	sourceSRID
(package private) int	targetSRID

Constructor Summary

Constructors

Constructor and Description
ShpToRdf(Configuration config, Classification classific, java.lang.String inFile, java.lang.String outFile, int sourceSRID, int targetSRID) Constructor for the transformation process from ESRI shapefile to RDF.

Method Summary

Modifier and Type	Method and Description
void	apply() Applies transformation according to the configuration settings.
private org.geotools.feature.FeatureIterator<?>	collectData(java.lang.String shapePath) Loads a shapefile from the configuration path and returns an iterable feature collection.
private boolean	validateShapefile(java.io.File shpPath, java.lang.String shpName) Checks whether a valid shapefile is given as input, i.e., at least the three .shp, .shx, .dbf files are available in the same folder

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

reproject

private org.opengis.referencing.operation.MathTransform reproject

sourceSRID

int sourceSRID

targetSRID

int targetSRID

currentConfig

private Configuration currentConfig

classification

private Classification classification

inputFile

java.lang.String inputFile

outputFile

java.lang.String outputFile

dataStore

org.geotools.data.DataStore dataStore

crsFactory

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

Constructor Detail

ShpToRdf

public ShpToRdf(Configuration config,
                Classification classific,
                java.lang.String inFile,
                java.lang.String outFile,
                int sourceSRID,
                int targetSRID)
         throws java.lang.ClassNotFoundException

Constructor for the transformation process from ESRI shapefile to RDF.

Parameters:

config - Parameters to configure the transformation.

classific - Instantiation of the classification scheme that assigns categories to input features.

inFile - Path to input shapefile.

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

sourceSRID - Spatial reference system (EPSG code) of the input shapefile.

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

Throws:

java.lang.ClassNotFoundException

Method Detail

apply

public void apply()

Applies transformation according to the configuration settings.

collectData

private org.geotools.feature.FeatureIterator<?> collectData(java.lang.String shapePath)

Loads a shapefile from the configuration path and returns an iterable feature collection.

Parameters:

shapePath - Specifies the path to the shapefile.

Returns:

FeatureIterator over the collection of features that can be streamed into the transformation process.

validateShapefile

private boolean validateShapefile(java.io.File shpPath,
                                  java.lang.String shpName)

Checks whether a valid shapefile is given as input, i.e., at least the three .shp, .shx, .dbf files are available in the same folder

Parameters:

shpPath - Path to the shapefile on disk.

shpName - Name of the shapefile (without extensions)

Returns:

True if the shapefile seems valid and can be processed; otherwise, False.