AsOSMLink Class Reference

Returns a OpenStreetMap link representation of a given geometry. More...

Inheritance diagram for AsOSMLink:

Collaboration diagram for AsOSMLink:

Public Member Functions
String	operation (Geometry geom)
String	getURI ()
Value	evaluate (ValueFactory valueFactory, Value... args) throws ValueExprEvaluationException

Detailed Description

Returns a OpenStreetMap link representation of a given geometry.

Member Function Documentation

evaluate()

Value evaluate ( ValueFactory  valueFactory, Value...  args  ) throws ValueExprEvaluationException

inherited

                                                                                                            {
                if (args.length != 1) {
                        throw new ValueExprEvaluationException(getURI() + " requires exactly 1 arguments, got " + args.length);
                }
 
                LiteralType l=LiteralRegistry.getLiteral(((Literal)args[0]).getDatatype().toString());
                if(l instanceof VectorLiteral) {
                        Geometry geom=((VectorLiteral)l).read(args[0].stringValue());
                        String result = operation(geom);
                        return valueFactory.createLiteral(result);
                }
                throw new ValueExprEvaluationException("Argument given is not a geometry literal");
                
        }

References LiteralRegistry.getLiteral(), and GeometricStringExportFunction.operation().

Referenced by AsBinaryTest.testAsBinary(), AsEncodedPolylineTest.testAsEncodedPolyline(), AsGARSTest.testAsGARS(), AsGeoJSONTest.testAsGeoJSON(), AsGeoRSSTest.testAsGeoRSS(), AsGeoURITest.testAsGeoURI(), AsLatLonTextTest.testAsLatLonText(), AsOSMLinkTest.testAsOSMLink(), AsPolyshapeTest.testAsPolyShape(), AsTextTest.testAsText(), AsTextRawTest.testAsTextRaw(), AsTextTest.testAsTextZ(), DumpTest.testDump(), GeomCRSToWKTTest.testGeomCRSToWKT(), GeometryTypeTest.testLineString(), SridGetAxis1OrientationTest.testSridAxis1Orientation(), SridGetAxis2OrientationTest.testSridAxis2Orientation(), SridGetAxis1NameTest.testSridGetAxis1Name(), SridGetAxis2NameTest.testSridGetAxis2Name(), and SridGetDatumTest.testSridGetDatum().

getURI()

String getURI

(

)

                               {
                return POSTGIS.st_osmlink.stringValue();
        }

References POSTGIS.st_osmlink.

operation()

String operation

(

Geometry

geom

)

Reimplemented from GeometricStringExportFunction.

                                               { 
        Envelope env = geom.getEnvelopeInternal();
        StringBuilder builder = new StringBuilder("http://www.openstreetmap.org/?");
        builder.append("minlon=").append(env.getMinY());
        builder.append("&minlat=").append(env.getMinX());
        builder.append("&maxlon=").append(env.getMaxY());
        builder.append("&maxlat=").append(env.getMaxX());
        Coordinate centre = env.centre();
        builder.append("&mlat=").append(centre.x);
        builder.append("&mlon=").append(centre.y);          
        return builder.toString();
        }