Example usage for org.apache.lucene.spatial.query SpatialArgs validate

Introduction

In this page you can find the example usage for org.apache.lucene.spatial.query SpatialArgs validate.

Prototype

public void validate() throws IllegalArgumentException 

Source Link

Document

Check if the arguments make sense -- throw an exception if not

Usage

From source file:org.apache.blur.analysis.type.spatial.SpatialArgsParser.java

License:Apache License

/**
 * Parses a string such as "Intersects(-10,20,-8,22) distErrPct=0.025".
 * //from  ww  w  .j  a va 2 s.  c o m
 * @param v
 *          The string to parse. Mandatory.
 * @param shapeReadWriter
 *          The spatial shapeReadWriter. Mandatory.
 * @return Not null.
 * @throws IllegalArgumentException
 *           If there is a problem parsing the string.
 * @throws InvalidShapeException
 *           Thrown from {@link ShapeReadWriter#readShape(String)}
 */
public static SpatialArgs parse(String v, ShapeReadWriter<SpatialContext> shapeReadWriter)
        throws IllegalArgumentException, InvalidShapeException {
    int idx = v.indexOf('(');
    int edx = v.lastIndexOf(')');

    if (idx < 0 || idx > edx) {
        throw new IllegalArgumentException("missing parens: " + v, null);
    }

    SpatialOperation op = SpatialOperation.get(v.substring(0, idx).trim());

    String body = v.substring(idx + 1, edx).trim();
    if (body.length() < 1) {
        throw new IllegalArgumentException("missing body : " + v, null);
    }

    Shape shape = shapeReadWriter.readShape(body);
    SpatialArgs args = new SpatialArgs(op, shape);

    if (v.length() > (edx + 1)) {
        body = v.substring(edx + 1).trim();
        if (body.length() > 0) {
            Map<String, String> aa = parseMap(body);
            args.setDistErrPct(readDouble(aa.remove(DIST_ERR_PCT)));
            args.setDistErr(readDouble(aa.remove(DIST_ERR)));
            if (!aa.isEmpty()) {
                throw new IllegalArgumentException("unused parameters: " + aa, null);
            }
        }
    }
    args.validate();
    return args;
}

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