blob: aafb740de1dd675c88a7bac20323f8bfd6c3fe33 (
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
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.prelude.semantics.rule;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import com.yahoo.prelude.query.PhraseItem;
import com.yahoo.prelude.query.WordItem;
import com.yahoo.prelude.semantics.engine.Match;
import com.yahoo.prelude.semantics.engine.RuleEvaluation;
import com.yahoo.protect.Validator;
/**
* A literal phrase produced by a production rule
*
* @author bratseth
*/
public class LiteralPhraseProduction extends TermProduction {
private final List<String> terms = new ArrayList<>();
/** Creates a new produced literal phrase */
public LiteralPhraseProduction() {
super();
}
/**
* Creates a new produced literal phrase
*
* @param label the label of the produced term
*/
public LiteralPhraseProduction(String label) {
super(label);
}
/** Adds a term to this phrase */
public void addTerm(String term) {
Validator.ensureNotNull("A term in a produced phrase",term);
terms.add(term);
}
/** Returns a read only view of the terms produced by this, never null */
public List<String> getTerms() { return Collections.unmodifiableList(terms); }
public void produce(RuleEvaluation e, int offset) {
PhraseItem newPhrase = new PhraseItem();
newPhrase.setIndexName(getLabel());
for (String term : terms)
newPhrase.addItem(new WordItem(term));
Match matched = e.getNonreferencedMatch(0);
insertMatch(e, matched, List.of(newPhrase), offset);
}
public String toInnerTermString() {
return getLabelString() + "\"" + getSpaceSeparated(terms) + "\"";
}
private String getSpaceSeparated(List<String> terms) {
StringBuilder builder = new StringBuilder();
for (Iterator<String> i = terms.iterator(); i.hasNext(); ) {
builder.append(i.next());
if (i.hasNext())
builder.append(" ");
}
return builder.toString();
}
}
|
