Examples of org.opengis.filter.expression.PropertyName

org.opengis.filter.expression.PropertyName
is.org/docs/02-059.pdf">Implementation specification 1.0 @author Chris Dillard (SYS Technologies) @since GeoAPI 2.0

        // 6. MULTIPOLYGON( ((-1 -1, -1 1, 1 1, 1 -1, -1 -1)), ((-170 -80, -170 -70, -160 -70, -160
        // -80, -170 -80)) )
        // 7. POINT EMPTY
        // 8. null


        final PropertyName property = ff.property("SHAPE");
        Geometry geom;
        Filter filter;


        geom = geom("POINT(170 0)");
        filter = ff.beyond(property, ff.literal(geom), 1d, "");

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        // 6. ------ MULTIPOLYGON( ((-1 -1, -1 1, 1 1, 1 -1, -1 -1)),
        // ((-170 -80, -170 -70, -160 -70, -160 -80, -170 -80)) )
        // 7. ------ POINT EMPTY
        // 8. ------ null


        final PropertyName property = ff.property("SHAPE");
        Geometry geom;
        Filter filter;


        geom = findGeom("INT32_COL = 3");
        filter = ff.touches(property, ff.literal(geom));

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        FeatureIterator it = features.features();
        for (; it.hasNext();) {
            feature = (Feature) it.next();
            count++;
            {
                PropertyName gmlName = ffac.property("gml:name");
                PropertyName phenomName = ffac.property(phenomNamePath);


                Object nameVal = gmlName.evaluate(feature, String.class);
                assertNotNull("gml:name evaluated to null", nameVal);


                Object phenomNameVal = phenomName.evaluate(feature, String.class);
                assertNotNull(phenomNamePath + " evaluated to null", phenomNameVal);
            }
            {
                PropertyName sampledFeatureName = ffac.property("sa:sampledFeature");
                Attribute sampledFeatureVal = (Attribute) sampledFeatureName.evaluate(feature);
                assertNotNull("sa:sampledFeature evaluated to null", sampledFeatureVal);
                assertEquals(0, ((Collection) sampledFeatureVal.getValue()).size());
                Map attributes = (Map) sampledFeatureVal.getUserData().get(Attributes.class);
                assertNotNull(attributes);
                Name xlinkTitle = name(XLINK.NAMESPACE, "title");
                assertTrue(attributes.containsKey(xlinkTitle));
                assertNotNull(attributes.get(xlinkTitle));


                Name xlinkHref = name(XLINK.NAMESPACE, "href");
                assertTrue(attributes.containsKey(xlinkHref));
                assertNotNull(attributes.get(xlinkHref));
            }


            {
                final String elementPath = "aw:relatedObservation/aw:PhenomenonTimeSeries/om:result/cv:CompactDiscreteTimeCoverage";
                PropertyName elementName = ffac.property(elementPath);
                Object timeCovVal = elementName.evaluate(feature);
                assertNotNull(elementPath, timeCovVal);
                assertTrue(timeCovVal instanceof Feature);
                final List elements = (List) ((Feature) timeCovVal).getValue();
                assertEquals(1, elements.size());
            }

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    /**
     * Parses the two operands for a binary temporal filter.
     */
    static Expression[] temporal(Node node, FilterFactory factory) {
        PropertyName name = (PropertyName) node.getChildValue(PropertyName.class);
        Object other = null;
        for (Object o : node.getChildValues(Object.class)) {
            if (o == name) {
                continue;
            }

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        assertEquals(fid, unmappedFeature.getID());
    }
    
    @Test
    public void testPropertyName() throws Exception {
        PropertyName ae = ff.property("/wq_plus/measurement/result");
        List unrolled = (List) ae.accept(visitor, null);
        assertNotNull(unrolled);
        assertEquals(1, unrolled.size());


        Expression unmappedExpr = (Expression) unrolled.get(0);
        assertTrue(unmappedExpr instanceof PropertyName);
        PropertyName attExp = (PropertyName) unmappedExpr;
        assertEquals("results_value", attExp.getPropertyName());


        // now try with an AttributeExpression that is not directly mapped to an
        // attribute
        // expresion on the surrogate FeatureType, but to a composite one.
        // For example, create a mapping from the test case simple source to
        // a complex type with an "areaOfInfluence" attribute, which is a buffer
        // over the simple "location" attribute
        // and another which is the concatenation of the attributes "anzlic_no"
        // and "project_no"
        FeatureTypeMapping mapping = createSampleDerivedAttributeMappings();
        targetDescriptor = mapping.getTargetFeature();


        visitor = new UnmappingFilterVisitor(mapping);
        attExp = ff.property("areaOfInfluence");
        List unrolledExpressions = (List) attExp.accept(visitor, null);


        assertNotNull(unrolledExpressions);
        assertEquals(1, unrolledExpressions.size());


        unmappedExpr = (Expression) unrolledExpressions.get(0);

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        namespaces.declarePrefix("xmml", XMMLNS);
        namespaces.declarePrefix("xlink", XLINK.NAMESPACE);


        FilterFactory2 ff = new FilterFactoryImplNamespaceAware(namespaces);
        String xpathExpression = "sa:shape/geo:LineByVector/geo:origin/@xlink:href";
        PropertyName propNameExpression = ff.property(xpathExpression);


        visitor = new UnmappingFilterVisitor(mapping);


        List /* <Expression> */unrolled = (List) propNameExpression.accept(visitor, null);
        assertNotNull(unrolled);
        assertEquals(1, unrolled.size());
        assertTrue(unrolled.get(0) instanceof Expression);
    }

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        visitor = new UnmappingFilterVisitor(mapping);
        FilterFactory2 ff = new FilterFactoryImplNamespaceAware(namespaces);


        String xpathExpression = "@gml:id";
        PropertyName propNameExpression = ff.property(xpathExpression);


        List /* <Expression> */unrolled = (List) propNameExpression.accept(visitor, null);
        assertNotNull(unrolled);
        assertEquals(1, unrolled.size());
        assertTrue(unrolled.get(0) instanceof Expression);
        assertEquals(((Expression) unrolled.get(0)).toString(), "strConcat([bh.], [BGS_ID])");


        xpathExpression = "/@gml:id";
        propNameExpression = ff.property(xpathExpression);


        unrolled = (List) propNameExpression.accept(visitor, null);
        assertNotNull(unrolled);
        assertEquals(1, unrolled.size());
        assertTrue(unrolled.get(0) instanceof Expression);
        assertEquals(((Expression) unrolled.get(0)).toString(), "strConcat([bh.], [BGS_ID])");


        xpathExpression = "xmml:Borehole/@gml:id";
        propNameExpression = ff.property(xpathExpression);


        unrolled = (List) propNameExpression.accept(visitor, null);
        assertNotNull(unrolled);
        assertEquals(1, unrolled.size());
        assertTrue(unrolled.get(0) instanceof Expression);
        assertEquals(((Expression) unrolled.get(0)).toString(), "strConcat([bh.], [BGS_ID])");
    }

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        Expression left = ((PropertyIsEqualTo) unrolled).getExpression1();
        Expression right = ((PropertyIsEqualTo) unrolled).getExpression2();


        assertTrue(left instanceof PropertyName);
        assertTrue(right instanceof Literal);
        PropertyName attExp = (PropertyName) left;
        String expectedAtt = "results_value";
        assertEquals(expectedAtt, attExp.getPropertyName());
        assertEquals(new Double(1.1), ((Literal) right).getValue());
    }

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        assertEquals(1, unrolledExpressions.size());
        Expression unmapped = (Expression) unrolledExpressions.get(0);
        assertTrue(unmapped instanceof Multiply);
        Multiply mathUnmapped = (Multiply) unmapped;


        PropertyName unmappedAttt = (PropertyName) mathUnmapped.getExpression1();
        assertEquals("results_value", unmappedAttt.getPropertyName());
        assertSame(literal, mathUnmapped.getExpression2());
    }

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     */
    private Set extractDomain(final String attribute, final String secondAttribute, final DomainType domainType)
            throws IOException {
        final Query query = new Query(typeName);
        
        final PropertyName propertyName = FeatureUtilities.DEFAULT_FILTER_FACTORY.property(attribute);
        query.setPropertyNames(Arrays.asList(attribute, secondAttribute));
        
        final SortByImpl[] sb = new SortByImpl[]{new SortByImpl(propertyName, SortOrder.ASCENDING)};
        // Checking whether it supports sorting capabilities
        if(granuleCatalog.getQueryCapabilities(typeName).supportsSorting(sb)){

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