@Override
public Mapper parse(ParseContext context) throws IOException {
ContentPath.Type origPathType = context.path().pathType();
context.path().pathType(pathType);
context.path().add(simpleName());
GeoPoint sparse = context.parseExternalValue(GeoPoint.class);
if (sparse != null) {
parse(context, sparse, null);
} else {
sparse = new GeoPoint();
XContentParser.Token token = context.parser().currentToken();
if (token == XContentParser.Token.START_ARRAY) {
token = context.parser().nextToken();
if (token == XContentParser.Token.START_ARRAY) {
// its an array of array of lon/lat [ [1.2, 1.3], [1.4, 1.5] ]
while (token != XContentParser.Token.END_ARRAY) {
parse(context, GeoUtils.parseGeoPoint(context.parser(), sparse), null);
token = context.parser().nextToken();
}
} else {
// its an array of other possible values
if (token == XContentParser.Token.VALUE_NUMBER) {
double lon = context.parser().doubleValue();
token = context.parser().nextToken();
double lat = context.parser().doubleValue();
while ((token = context.parser().nextToken()) != XContentParser.Token.END_ARRAY) ;
parse(context, sparse.reset(lat, lon), null);
} else {
while (token != XContentParser.Token.END_ARRAY) {
if (token == XContentParser.Token.VALUE_STRING) {
parsePointFromString(context, sparse, context.parser().text());
} else {
parse(context, GeoUtils.parseGeoPoint(context.parser(), sparse), null);
}
token = context.parser().nextToken();
}
}
}
} else if (token == XContentParser.Token.VALUE_STRING) {
parsePointFromString(context, sparse, context.parser().text());
} else if (token != XContentParser.Token.VALUE_NULL) {
parse(context, GeoUtils.parseGeoPoint(context.parser(), sparse), null);
}
}
context.path().remove();
context.path().pathType(origPathType);
return null;
}
private AbstractDistanceScoreFunction parseGeoVariable(
XContentParser parser,
QueryShardContext context,
BaseGeoPointFieldMapper.GeoPointFieldType fieldType,
MultiValueMode mode)
throws IOException {
XContentParser.Token token;
String parameterName = null;
GeoPoint origin = new GeoPoint();
String scaleString = null;
String offsetString = "0km";
double decay = 0.5;
while ((token = parser.nextToken()) != XContentParser.Token.END_OBJECT) {
if (token == XContentParser.Token.FIELD_NAME) {
parameterName = parser.currentName();
} else if (DecayFunctionBuilder.SCALE.equals(parameterName)) {
scaleString = parser.text();
} else if (DecayFunctionBuilder.ORIGIN.equals(parameterName)) {
origin = GeoUtils.parseGeoPoint(parser);
} else if (DecayFunctionBuilder.DECAY.equals(parameterName)) {
decay = parser.doubleValue();
} else if (DecayFunctionBuilder.OFFSET.equals(parameterName)) {
offsetString = parser.text();
} else {
throw new ElasticsearchParseException("parameter [{}] not supported!", parameterName);
}
}
if (origin == null || scaleString == null) {
throw new ElasticsearchParseException(
"[{}] and [{}] must be set for geo fields.",
DecayFunctionBuilder.ORIGIN,
DecayFunctionBuilder.SCALE);
}
double scale = DistanceUnit.DEFAULT.parse(scaleString, DistanceUnit.DEFAULT);
double offset = DistanceUnit.DEFAULT.parse(offsetString, DistanceUnit.DEFAULT);
IndexGeoPointFieldData indexFieldData = context.getForField(fieldType);
return new GeoFieldDataScoreFunction(
origin, scale, decay, offset, getDecayFunction(), indexFieldData, mode);
}
@Override
public Builder fromXContent(QueryParseContext parseContext) throws IOException {
XContentParser parser = parseContext.parser();
String fieldName = null;
String geohash = null;
Integer levels = null;
Boolean neighbors = null;
String queryName = null;
Float boost = null;
XContentParser.Token token;
if ((token = parser.currentToken()) != Token.START_OBJECT) {
throw new ElasticsearchParseException(
"failed to parse [{}] query. expected an object but found [{}] instead", NAME, token);
}
while ((token = parser.nextToken()) != Token.END_OBJECT) {
if (token == Token.FIELD_NAME) {
String field = parser.currentName();
if (parseContext.isDeprecatedSetting(field)) {
// skip
} else if (parseContext.parseFieldMatcher().match(field, PRECISION_FIELD)) {
token = parser.nextToken();
if (token == Token.VALUE_NUMBER) {
levels = parser.intValue();
} else if (token == Token.VALUE_STRING) {
double meters =
DistanceUnit.parse(parser.text(), DistanceUnit.DEFAULT, DistanceUnit.METERS);
levels = GeoUtils.geoHashLevelsForPrecision(meters);
}
} else if (parseContext.parseFieldMatcher().match(field, NEIGHBORS_FIELD)) {
parser.nextToken();
neighbors = parser.booleanValue();
} else if (parseContext
.parseFieldMatcher()
.match(field, AbstractQueryBuilder.NAME_FIELD)) {
parser.nextToken();
queryName = parser.text();
} else if (parseContext
.parseFieldMatcher()
.match(field, AbstractQueryBuilder.BOOST_FIELD)) {
parser.nextToken();
boost = parser.floatValue();
} else {
if (fieldName == null) {
fieldName = field;
token = parser.nextToken();
if (token == Token.VALUE_STRING) {
// A string indicates either a geohash or a
// lat/lon
// string
String location = parser.text();
if (location.indexOf(",") > 0) {
geohash = GeoUtils.parseGeoPoint(parser).geohash();
} else {
geohash = location;
}
} else {
geohash = GeoUtils.parseGeoPoint(parser).geohash();
}
} else {
throw new ParsingException(
parser.getTokenLocation(),
"["
+ NAME
+ "] field name already set to ["
+ fieldName
+ "] but found ["
+ field
+ "]");
}
}
} else {
throw new ElasticsearchParseException(
"failed to parse [{}] query. unexpected token [{}]", NAME, token);
}
}
Builder builder = new Builder(fieldName, geohash);
if (levels != null) {
builder.precision(levels);
}
if (neighbors != null) {
builder.neighbors(neighbors);
}
if (queryName != null) {
builder.queryName(queryName);
}
if (boost != null) {
builder.boost(boost);
}
return builder;
}