blob: e27bb10f0673c630f55c47b679742cc0cdbbc75b (
plain) (
blame)
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
81
82
83
84
|
package com.yahoo.prelude.query;
import com.yahoo.compress.IntegerCompressor;
import java.nio.ByteBuffer;
import java.util.Collection;
import java.util.HashSet;
import java.util.Objects;
import java.util.Set;
/*
* Class representing an IN operator with a set of string values.
*/
public class StringInItem extends InItem {
private Set<String> tokens;
public StringInItem(String indexName) {
super(indexName);
tokens = new HashSet<>(1000);
}
@Override
public ItemType getItemType() {
return ItemType.STRING_IN;
}
@Override
public int encode(ByteBuffer buffer) {
encodeThis(buffer);
return 1;
}
@Override
protected void encodeThis(ByteBuffer buffer) {
super.encodeThis(buffer);
IntegerCompressor.putCompressedPositiveNumber(tokens.size(), buffer);
putString(getIndexName(), buffer);
for (var entry : tokens) {
putString(entry, buffer);
}
}
@Override
public int getTermCount() {
return 1;
}
@Override
protected void appendBodyString(StringBuilder buffer) {
buffer.append(getIndexName());
buffer.append("{");
for (var entry : tokens) {
buffer.append("\"");
buffer.append(entry);
buffer.append("\",");
}
if (!tokens.isEmpty()) {
buffer.deleteCharAt(buffer.length() - 1); // remove extra ","
}
buffer.append("}");
}
public void addToken(String token) {
if (token == null) throw new IllegalArgumentException("token must be a string");
tokens.add(token);
}
public Collection<String> getTokens() { return Set.copyOf(tokens); }
@Override
public boolean equals(Object o) {
if (o == this) return true;
if ( ! super.equals(o)) return false;
var other = (StringInItem)o;
if ( ! Objects.equals(this.tokens, other.tokens)) return false;
return true;
}
@Override
public int hashCode() {
return Objects.hash(super.hashCode(), tokens);
}
}
|