blob: 739ea32f2d1eaee3f044de57ed69e8ef0d290ea2 (
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
|
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.pagetemplates.engine;
import com.yahoo.search.pagetemplates.model.Choice;
import com.yahoo.search.pagetemplates.model.MapChoice;
import com.yahoo.search.pagetemplates.model.PageElement;
import java.util.IdentityHashMap;
import java.util.List;
import java.util.Map;
/**
* A resolution of choices within a template.
*
* @author bratseth
*/
public class Resolution {
/** A record of choices made as choice → alternative index (id) */
private Map<Choice,Integer> choiceResolutions=new IdentityHashMap<>();
/** A of map choices made as choice → mapping */
private Map<MapChoice,Map<String,List<PageElement>>> mapChoiceResolutions=
new IdentityHashMap<>();
public void addChoiceResolution(Choice choice,int alternativeIndex) {
choiceResolutions.put(choice,alternativeIndex);
}
public void addMapChoiceResolution(MapChoice choice, Map<String,List<PageElement>> mapping) {
mapChoiceResolutions.put(choice,mapping);
}
/**
* Returns the resolution of a choice.
*
* @return the (0-base) index of the choice made. If the given choice has exactly one alternative,
* 0 is always returned (whether or not the choice has been attempted resolved).
* @throws IllegalArgumentException if the choice is empty, or if it has multiple alternatives but have not
* been resolved in this
*/
public int getResolution(Choice choice) {
if (choice.alternatives().size() == 1) return 0;
if (choice.isEmpty()) throw new IllegalArgumentException("Cannot return a resolution of empty " + choice);
Integer resolution = choiceResolutions.get(choice);
if (resolution == null) throw new IllegalArgumentException(this + " has no resolution of " + choice);
return resolution;
}
/**
* Returns the resolution of a map choice.
*
* @return the chosen mapping - entries from placeholder id to the values to use at the location of that placeholder
* @throws IllegalArgumentException if this choice has not been resolved in this
*/
public Map<String,List<PageElement>> getResolution(MapChoice choice) {
Map<String,List<PageElement>> resolution=mapChoiceResolutions.get(choice);
if (resolution==null) throw new IllegalArgumentException(this + " has no resolution of " + choice);
return resolution;
}
@Override
public String toString() {
return "a resolution of " + choiceResolutions.size() + " choices";
}
}
|