Examples with Literal org.opengis.filter.expression.Literal used on opensource projects

Example 11 with Literal

use of org.opengis.filter.expression.Literal in project ddf by codice.

the class OpenSearchFilterVisitor method visit.

/**
     * Contains filter maps to a Polygon or BBox Spatial search criteria.
     */
@Override
public Object visit(Contains filter, Object data) {
    LOGGER.trace("ENTERING: Contains filter");
    if (currentNest == null || NestedTypes.AND.equals(currentNest)) {
        // The geometric point is wrapped in a <Literal> element, so have to
        // get geometry expression as literal and then evaluate it to get
        // the geometry.
        // Example:
        // <ogc:Literal>org.geotools.geometry.jts.spatialschema.geometry.primitive.SurfaceImpl@64a7c45e</ogc:Literal>
        Literal literalWrapper = (Literal) filter.getExpression2();
        Object geometryExpression = literalWrapper.getValue();
        StringBuffer geometryWkt = new StringBuffer();
        if (geometryExpression instanceof SurfaceImpl) {
            SurfaceImpl polygon = (SurfaceImpl) literalWrapper.evaluate(null);
            Coordinate[] coords = polygon.getJTSGeometry().getCoordinates();
            geometryWkt.append("POLYGON((");
            for (int i = 0; i < coords.length; i++) {
                geometryWkt.append(coords[i].x);
                geometryWkt.append(" ");
                geometryWkt.append(coords[i].y);
                if (i != (coords.length - 1)) {
                    geometryWkt.append(",");
                }
            }
            geometryWkt.append("))");
            this.spatialSearch = new SpatialFilter(geometryWkt.toString());
            LOGGER.debug("geometryWkt = [{}]", geometryWkt.toString());
            filters.add(filter);
        } else {
            LOGGER.debug("Only POLYGON geometry WKT for Contains filter is supported");
        }
    } else {
        LOGGER.debug(ONLY_AND_MSG);
    }
    LOGGER.trace("EXITING: Contains filter");
    return super.visit(filter, data);
}

Example 12 with Literal

use of org.opengis.filter.expression.Literal in project ddf by codice.

the class OpenSearchFilterVisitor method visit.

/**
     * Intersects filter maps to a Polygon or BBox Spatial search criteria.
     */
@Override
public Object visit(Intersects filter, Object data) {
    LOGGER.trace("ENTERING: Intersects filter");
    if (currentNest == null || NestedTypes.AND.equals(currentNest)) {
        // The geometric point is wrapped in a <Literal> element, so have to
        // get geometry expression as literal and then evaluate it to get
        // the geometry.
        // Example:
        // <ogc:Literal>org.geotools.geometry.jts.spatialschema.geometry.primitive.SurfaceImpl@64a7c45e</ogc:Literal>
        Literal literalWrapper = (Literal) filter.getExpression2();
        Object geometryExpression = literalWrapper.getValue();
        StringBuffer geometryWkt = new StringBuffer();
        if (geometryExpression instanceof SurfaceImpl) {
            SurfaceImpl polygon = (SurfaceImpl) literalWrapper.evaluate(null);
            Coordinate[] coords = polygon.getJTSGeometry().getCoordinates();
            geometryWkt.append("POLYGON((");
            for (int i = 0; i < coords.length; i++) {
                geometryWkt.append(coords[i].x);
                geometryWkt.append(" ");
                geometryWkt.append(coords[i].y);
                if (i != (coords.length - 1)) {
                    geometryWkt.append(",");
                }
            }
            geometryWkt.append("))");
            this.spatialSearch = new SpatialFilter(geometryWkt.toString());
            LOGGER.debug("geometryWkt = [{}]", geometryWkt.toString());
            filters.add(filter);
        } else {
            LOGGER.debug("Only POLYGON geometry WKT for Intersects filter is supported");
        }
    } else {
        LOGGER.debug(ONLY_AND_MSG);
    }
    LOGGER.trace("EXITING: Intersects filter");
    return super.visit(filter, data);
}

Example 13 with Literal

use of org.opengis.filter.expression.Literal in project ddf by codice.

the class TwitterFilterVisitor method visit.

/**
     * Contains filter maps to a Polygon or BBox Spatial search criteria.
     */
@Override
public Object visit(Contains filter, Object data) {
    LOGGER.trace("ENTERING: Contains filter");
    if (currentNest == null || NestedTypes.AND.equals(currentNest)) {
        // The geometric point is wrapped in a <Literal> element, so have to
        // get geometry expression as literal and then evaluate it to get
        // the geometry.
        // Example:
        // <ogc:Literal>org.geotools.geometry.jts.spatialschema.geometry.primitive.SurfaceImpl@64a7c45e</ogc:Literal>
        Literal literalWrapper = (Literal) filter.getExpression2();
        Object geometryExpression = literalWrapper.getValue();
        if (geometryExpression instanceof SurfaceImpl) {
            SurfaceImpl polygon = (SurfaceImpl) literalWrapper.evaluate(null);
            Point point = polygon.getJTSGeometry().getCentroid();
            longitude = point.getX();
            latitude = point.getY();
            radius = point.getBoundary().getLength() * 10;
            hasSpatial = true;
            filters.add(filter);
        } else if (geometryExpression instanceof Polygon) {
            Polygon polygon = (Polygon) geometryExpression;
            Point centroid = polygon.getCentroid();
            longitude = centroid.getX();
            latitude = centroid.getY();
            radius = polygon.getBoundary().getLength() * 10;
            hasSpatial = true;
            filters.add(filter);
        } else {
            LOGGER.warn("Only POLYGON geometry WKT for Contains filter is supported");
        }
    } else {
        LOGGER.warn(ONLY_AND_MSG);
    }
    LOGGER.trace("EXITING: Contains filter");
    return super.visit(filter, data);
}

Example 14 with Literal

use of org.opengis.filter.expression.Literal in project ddf by codice.

the class TwitterFilterVisitor method visit.

/**
     * DWithin filter maps to a Point/Radius distance Spatial search criteria.
     */
@Override
public Object visit(DWithin filter, Object data) {
    LOGGER.trace("ENTERING: DWithin filter");
    if (currentNest == null || NestedTypes.AND.equals(currentNest)) {
        // The geometric point is wrapped in a <Literal> element, so have to
        // get geometry expression as literal and then evaluate it to get
        // the geometry.
        // Example:
        // <ogc:Literal>org.geotools.geometry.jts.spatialschema.geometry.primitive.PointImpl@dc33f184</ogc:Literal>
        Literal literalWrapper = (Literal) filter.getExpression2();
        // Luckily we know what type the geometry expression should be, so
        // we
        // can cast it
        Point point = (Point) literalWrapper.evaluate(null);
        Coordinate coords = point.getCentroid().getCoordinate();
        double distance = filter.getDistance();
        LOGGER.debug("point: coords[0] = {},   coords[1] = {}", coords.x, coords.y);
        LOGGER.debug("radius = {}", distance);
        longitude = coords.x;
        latitude = coords.y;
        radius = distance / 1000;
        hasSpatial = true;
        filters.add(filter);
    } else {
        LOGGER.warn(ONLY_AND_MSG);
    }
    LOGGER.trace("EXITING: DWithin filter");
    return super.visit(filter, data);
}

Example 15 with Literal

use of org.opengis.filter.expression.Literal in project ddf by codice.

the class CswRecordMapperFilterVisitor method visit.

@Override
public Object visit(PropertyIsGreaterThan filter, Object extraData) {
    Expression expr1 = visit(filter.getExpression1(), extraData);
    Expression expr2 = visit(filter.getExpression2(), expr1);
    // work around since Solr Provider doesn't support greater on temporal  (DDF-311)
    if (isTemporalQuery(expr1, expr2)) {
        // also not supported by provider (DDF-311)
        //TODO: work around 1: return getFactory(extraData).after(expr1, expr2);
        Object val = null;
        Expression other = null;
        if (expr2 instanceof Literal) {
            val = ((Literal) expr2).getValue();
            other = expr1;
        } else if (expr1 instanceof Literal) {
            val = ((Literal) expr1).getValue();
            other = expr2;
        }
        if (val != null) {
            Date orig = (Date) val;
            orig.setTime(orig.getTime() + 1);
            Instant start = new DefaultInstant(new DefaultPosition(orig));
            Instant end = new DefaultInstant(new DefaultPosition(new Date()));
            DefaultPeriod period = new DefaultPeriod(start, end);
            Literal literal = getFactory(extraData).literal(period);
            return getFactory(extraData).during(other, literal);
        }
    } else {
        AttributeType type = attributeTypes.get(((PropertyName) filter.getExpression1()).getPropertyName());
        LiteralExpressionImpl typedExpression = (LiteralExpressionImpl) filter.getExpression2();
        setExpressionType(type, typedExpression);
        expr2 = visit((Expression) typedExpression, expr1);
    }
    return getFactory(extraData).greater(expr1, expr2);
}