public static Fuzziness parse(XContentParser parser) throws IOException {
XContentParser.Token token = parser.currentToken();
switch (token) {
case VALUE_STRING:
case VALUE_NUMBER:
final String fuzziness = parser.text();
if (AUTO.asString().equalsIgnoreCase(fuzziness)) {
return AUTO;
}
try {
final int minimumSimilarity = Integer.parseInt(fuzziness);
switch (minimumSimilarity) {
case 0:
return ZERO;
case 1:
return ONE;
case 2:
return TWO;
default:
return build(fuzziness);
}
} catch (NumberFormatException ex) {
return build(fuzziness);
}
default:
throw new IllegalArgumentException("Can't parse fuzziness on token: [" + token + "]");
}
}
public static Fuzziness build(Object fuzziness) {
if (fuzziness instanceof Fuzziness) {
return (Fuzziness) fuzziness;
}
String string = fuzziness.toString();
if (AUTO.asString().equalsIgnoreCase(string)) {
return AUTO;
}
return new Fuzziness(string);
}
@Override
public Query fuzzyQuery(
String value,
Fuzziness fuzziness,
int prefixLength,
int maxExpansions,
boolean transpositions) {
long iValue = ipToLong(value);
long iSim;
try {
iSim = ipToLong(fuzziness.asString());
} catch (ElasticsearchIllegalArgumentException e) {
iSim = fuzziness.asLong();
}
return NumericRangeQuery.newLongRange(
names.indexName(), precisionStep, iValue - iSim, iValue + iSim, true, true);
}