Examples of org.opengis.filter.expression.Expression.evaluate()

Class org.opengis.filter.expression.Expression

Examples of org.opengis.filter.expression.Expression.evaluate()

org.opengis.filter.expression.Expression.evaluate()
Evaluates the given expression based on the content of the given object.


         TextSymbolizer text = (TextSymbolizer) symbolizers[0];
         
         Expression label = text.getLabel();
         
         String labelValue = (String) label.evaluate(null, String.class);


         assertEquals("literal_1\nliteral_2", labelValue);
    }


    public void testSLDParserWithFuncConcatenateCDATASpaces() throws Exception {

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            String name = def.name;
            Expression expression = def.expression;
            
            Object value = null;
            if( sample != null ){
                value = expression.evaluate(sample);
            }
            Class<?> binding = def.binding; // make use of any default binding hint provided by user
            if( value == null){
                if(  expression instanceof PropertyName){
                    PropertyName propertyName = (PropertyName)expression;

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         TextSymbolizer text = (TextSymbolizer) symbolizers[0];
         
         Expression label = text.getLabel();
         
         String labelValue = (String) label.evaluate(null, String.class);
         
         // System.out.println(labelValue);


         assertEquals("literal_1\n literal_2", labelValue);
    }

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        Expression right = disjoint.getExpression2();
                
        assertTrue( left instanceof PropertyName );
        
        assertTrue( right instanceof Literal );
        assertTrue( right.evaluate(null) instanceof Geometry );


        assertEquals(GEOMETRY_ATTR, ((PropertyName)left).getPropertyName() );
        assertTrue( right.evaluate(null) instanceof Polygon);


        Envelope bbox = ((Polygon) right.evaluate(null)).getEnvelopeInternal();

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        assertTrue( right instanceof Literal );
        assertTrue( right.evaluate(null) instanceof Geometry );


        assertEquals(GEOMETRY_ATTR, ((PropertyName)left).getPropertyName() );
        assertTrue( right.evaluate(null) instanceof Polygon);


        Envelope bbox = ((Polygon) right.evaluate(null)).getEnvelopeInternal();
        assertEquals(-10D, bbox.getMinX(), 0);
        assertEquals(-10D, bbox.getMinY(), 0);
        assertEquals(10D, bbox.getMaxX(), 0);

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        assertTrue( right.evaluate(null) instanceof Geometry );


        assertEquals(GEOMETRY_ATTR, ((PropertyName)left).getPropertyName() );
        assertTrue( right.evaluate(null) instanceof Polygon);


        Envelope bbox = ((Polygon) right.evaluate(null)).getEnvelopeInternal();
        assertEquals(-10D, bbox.getMinX(), 0);
        assertEquals(-10D, bbox.getMinY(), 0);
        assertEquals(10D, bbox.getMaxX(), 0);
        assertEquals(10D, bbox.getMaxY(), 0);
    }

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         type = (String)bcs.getType().evaluate(null);
         assertEquals("Normalize", type);
         
         //overlap behaviour
         Expression overlapExpr = rs.getOverlap();
         type = (String)overlapExpr.evaluate(null);
         assertEquals("LATEST_ON_TOP", type);
         
         //ContrastEnhancement
         ContrastEnhancement ce =  rs.getContrastEnhancement();
         Double v = (Double)ce.getGammaValue().evaluate(null);

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         Double d = (Double)rs.getOpacity().evaluate(null, Double.class);
         assertEquals(1.0, d.doubleValue());
                
         //overlap behaviour
         Expression overlapExpr = rs.getOverlap();
         String type = (String)overlapExpr.evaluate(null);
         assertEquals("AVERAGE", type);
         
         //ColorMap
         ColorMap cMap = rs.getColorMap();
         assertEquals(20, cMap.getColorMapEntries().length);

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        Rule rule = style.featureTypeStyles().get(0).rules().get(0);
        LineSymbolizer lineSymbolize = (LineSymbolizer) rule.symbolizers().get(0);
        Stroke stroke = lineSymbolize.getStroke();


        Expression color = stroke.getColor();
        Color value = color.evaluate(null, Color.class);
        assertNotNull("color", value);
        assertEquals("blue", Color.BLUE, value);
        assertEquals("expected width", 2, (int) stroke.getWidth().evaluate(null, Integer.class));
    }

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        Rule rule = style.featureTypeStyles().get(0).rules().get(0);
        LineSymbolizer lineSymbolize = (LineSymbolizer) rule.symbolizers().get(0);
        Stroke stroke = lineSymbolize.getStroke();


        Expression color = stroke.getColor();
        Color value = color.evaluate(null, Color.class);
        assertNotNull("color", value);
        assertEquals("blue", Color.BLUE, value);
    }


    /**

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