blob: fd05d92d62350831d968a4debf554802632c11b7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/*
* Licensed to Elasticsearch under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.script.expression;
import java.io.IOException;
import java.util.Map;
import java.util.Objects;
import org.apache.lucene.index.LeafReaderContext;
import org.apache.lucene.queries.function.FunctionValues;
import org.apache.lucene.queries.function.ValueSource;
import org.apache.lucene.queries.function.docvalues.DoubleDocValues;
import org.elasticsearch.index.fielddata.AtomicGeoPointFieldData;
import org.elasticsearch.index.fielddata.IndexFieldData;
import org.elasticsearch.index.fielddata.MultiGeoPointValues;
/**
* ValueSource to return longitudes as a double "stream" for geopoint fields
*/
final class GeoLongitudeValueSource extends ValueSource {
final IndexFieldData<?> fieldData;
GeoLongitudeValueSource(IndexFieldData<?> fieldData) {
this.fieldData = Objects.requireNonNull(fieldData);
}
@Override
@SuppressWarnings("rawtypes") // ValueSource uses a rawtype
public FunctionValues getValues(Map context, LeafReaderContext leaf) throws IOException {
AtomicGeoPointFieldData leafData = (AtomicGeoPointFieldData) fieldData.load(leaf);
final MultiGeoPointValues values = leafData.getGeoPointValues();
return new DoubleDocValues(this) {
@Override
public double doubleVal(int doc) throws IOException {
if (values.advanceExact(doc)) {
return values.nextValue().getLon();
} else {
return 0.0;
}
}
};
}
@Override
public int hashCode() {
return 31 * getClass().hashCode() + fieldData.hashCode();
}
@Override
public boolean equals(Object obj) {
if (this == obj) return true;
if (obj == null) return false;
if (getClass() != obj.getClass()) return false;
GeoLongitudeValueSource other = (GeoLongitudeValueSource) obj;
if (!fieldData.equals(other.fieldData)) return false;
return true;
}
@Override
public String description() {
return "lon: field(" + fieldData.getFieldName() + ")";
}
}
|