Examples with SpatialIndexException org.apache.jena.query.spatial.SpatialIndexException used on opensource projects

Example 6 with SpatialIndexException

use of org.apache.jena.query.spatial.SpatialIndexException in project jena by apache.

the class SpatialOperationWithCircleBase method objectToStruct.

/** Deconstruct the node or list object argument and make a NearbyMatch */
@Override
protected SpatialMatch objectToStruct(PropFuncArg argObject) {
    // EntityDefinition docDef = server.getDocDef();
    if (argObject.isNode()) {
        log.warn("Object not a List: " + argObject);
        return null;
    }
    List<Node> list = argObject.getArgList();
    if (list.size() < 3 || list.size() > 5)
        throw new SpatialIndexException("Change in object list size");
    int idx = 0;
    Node x = list.get(idx);
    if (!x.isLiteral()) {
        log.warn("Latitude is not a literal " + list);
        return null;
    }
    if (!SpatialValueUtil.isDecimal(x)) {
        log.warn("Latitude is not a decimal " + list);
        return null;
    }
    Double latitude = Double.parseDouble(x.getLiteralLexicalForm());
    idx++;
    x = list.get(idx);
    if (!x.isLiteral()) {
        log.warn("Longitude is not a literal " + list);
        return null;
    }
    if (!SpatialValueUtil.isDecimal(x)) {
        log.warn("Longitude is not a decimal " + list);
        return null;
    }
    Double longtitude = Double.parseDouble(x.getLiteralLexicalForm());
    idx++;
    x = list.get(idx);
    if (!x.isLiteral()) {
        log.warn("Radius is not a literal " + list);
        return null;
    }
    if (!SpatialValueUtil.isDecimal(x)) {
        log.warn("Radius is not a decimal " + list);
        return null;
    }
    Double radius = Double.parseDouble(x.getLiteralLexicalForm());
    if (radius <= 0) {
        log.warn("Radius is not a correct decimal " + list);
        return null;
    }
    // Kilometres
    String units = DistanceUnitsUtils.defaultDistanceUnit;
    int limit = -1;
    idx++;
    if (idx < list.size()) {
        x = list.get(idx);
        if (!x.isLiteral()) {
            log.warn("Units or limit is not a literal " + list);
            return null;
        }
        if (x.getLiteralDatatype() == null || x.getLiteralDatatype().equals(XSDDatatype.XSDstring)) {
            String u = x.getLiteralLexicalForm();
            if (DistanceUnitsUtils.isSupportedUnits(u)) {
                idx++;
                units = u;
            } else {
                log.warn("Units are not a supported " + list);
                return null;
            }
        }
    }
    if (idx < list.size()) {
        x = list.get(idx);
        if (!x.isLiteral()) {
            log.warn("Limit is not a literal " + list);
            return null;
        }
        LiteralLabel lit = x.getLiteral();
        if (!XSDDatatype.XSDinteger.isValidLiteral(lit)) {
            log.warn("Limit is not an integer " + list);
            return null;
        }
        int v = NodeFactoryExtra.nodeToInt(x);
        limit = (v < 0) ? -1 : v;
        idx++;
        if (idx < list.size()) {
            log.warn("Limit is not the last parameter " + list);
            return null;
        }
    }
    SpatialMatch match = new SpatialMatch(latitude, longtitude, radius, units, limit, this.getSpatialOperation());
    if (log.isDebugEnabled())
        log.debug("Trying SpatialMatch: " + match.toString());
    return match;
}