-
Notifications
You must be signed in to change notification settings - Fork 2
/
CollectionInstanceContext.java
74 lines (65 loc) · 2.56 KB
/
CollectionInstanceContext.java
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
/**
* Copyright (C) 2016 Czech Technical University in Prague
* <p>
* This program is free software: you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any
* later version.
* <p>
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details. You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package cz.cvut.kbss.jsonld.deserialization;
import cz.cvut.kbss.jsonld.deserialization.util.DataTypeTransformer;
import cz.cvut.kbss.jsonld.exception.JsonLdDeserializationException;
import java.util.Collection;
import java.util.Map;
class CollectionInstanceContext<T extends Collection> extends InstanceContext<T> {
private final Class<?> targetType;
CollectionInstanceContext(T instance, Map<String, Object> knownInstances) {
super(instance, knownInstances);
this.targetType = null;
}
CollectionInstanceContext(T instance, Class<?> targetType, Map<String, Object> knownInstances) {
super(instance, knownInstances);
this.targetType = targetType;
}
/**
* Adds the specified item into this collection.
*
* @param item The item to add
*/
@Override
void addItem(Object item) {
if (targetType == null) {
instance.add(item);
return;
}
Object toAdd = item;
if (!targetType.isAssignableFrom(item.getClass())) {
if (knownInstances.containsKey(item.toString())) {
toAdd = knownInstances.get(item.toString());
if (!targetType.isAssignableFrom(toAdd.getClass())) {
toAdd = null;
}
} else {
toAdd = DataTypeTransformer.transformValue(item, targetType);
}
}
if (toAdd == null) {
throw typeMismatch(targetType, item.getClass());
}
instance.add(toAdd);
}
private JsonLdDeserializationException typeMismatch(Class<?> expected, Class<?> actual) {
return new JsonLdDeserializationException(
"Type mismatch. Unable to transform instance of type " + actual + " to the expected type " + expected);
}
@Override
Class<?> getItemType() {
return targetType;
}
}