forked from opensearch-project/OpenSearch
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathLazyPropertyMap.java
201 lines (168 loc) · 5.91 KB
/
LazyPropertyMap.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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
/*
* SPDX-License-Identifier: Apache-2.0
*
* The OpenSearch Contributors require contributions made to
* this file be licensed under the Apache-2.0 license or a
* compatible open source license.
*/
/*
* 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.
*/
/*
* Modifications Copyright OpenSearch Contributors. See
* GitHub history for details.
*/
package org.opensearch.gradle;
import org.gradle.api.Named;
import org.gradle.api.tasks.Input;
import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.BiFunction;
import java.util.function.Supplier;
import java.util.stream.Collectors;
public class LazyPropertyMap<K, V> extends AbstractLazyPropertyCollection implements Map<K, V> {
private final Map<K, PropertyMapEntry<K, V>> delegate = new LinkedHashMap<>();
private final BiFunction<K, V, ?> normalizationMapper;
public LazyPropertyMap(String name) {
this(name, null);
}
public LazyPropertyMap(String name, Object owner) {
this(name, owner, null);
}
public LazyPropertyMap(String name, Object owner, BiFunction<K, V, ?> normalizationMapper) {
super(name, owner);
this.normalizationMapper = normalizationMapper;
}
@Override
public int size() {
return delegate.size();
}
@Override
public boolean isEmpty() {
return delegate.isEmpty();
}
@Override
public boolean containsKey(Object key) {
return delegate.containsKey(key);
}
@Override
public boolean containsValue(Object value) {
return delegate.values().stream().map(PropertyMapEntry::getValue).anyMatch(v -> v.equals(value));
}
@Override
public V get(Object key) {
PropertyMapEntry<K, V> entry = delegate.get(key);
if (entry != null) {
V value = entry.getValue();
assertNotNull(value, "value for key '" + key + "'");
return value;
} else {
return null;
}
}
@Override
public V put(K key, V value) {
return put(key, value, PropertyNormalization.DEFAULT);
}
public V put(K key, V value, PropertyNormalization normalization) {
assertNotNull(value, "value for key '" + key + "'");
return put(key, () -> value, normalization);
}
public V put(K key, Supplier<V> supplier) {
return put(key, supplier, PropertyNormalization.DEFAULT);
}
public V put(K key, Supplier<V> supplier, PropertyNormalization normalization) {
assertNotNull(supplier, "supplier for key '" + key + "'");
PropertyMapEntry<K, V> previous = delegate.put(key, new PropertyMapEntry<>(key, supplier, normalization));
return previous == null ? null : previous.getValue();
}
@Override
public V remove(Object key) {
PropertyMapEntry<K, V> previous = delegate.remove(key);
return previous == null ? null : previous.getValue();
}
@Override
public void putAll(Map<? extends K, ? extends V> m) {
throw new UnsupportedOperationException(this.getClass().getName() + " does not support putAll()");
}
@Override
public void clear() {
delegate.clear();
}
@Override
public Set<K> keySet() {
return delegate.keySet();
}
@Override
public Collection<V> values() {
return delegate.values().stream().peek(this::validate).map(PropertyMapEntry::getValue).collect(Collectors.toList());
}
@Override
public Set<Entry<K, V>> entrySet() {
return delegate.entrySet()
.stream()
.peek(this::validate)
.collect(Collectors.toMap(Entry::getKey, entry -> entry.getValue().getValue()))
.entrySet();
}
@Override
public List<? extends Object> getNormalizedCollection() {
return delegate.values()
.stream()
.peek(this::validate)
.filter(entry -> entry.getNormalization() != PropertyNormalization.IGNORE_VALUE)
.map(entry -> normalizationMapper == null ? entry : normalizationMapper.apply(entry.getKey(), entry.getValue()))
.collect(Collectors.toList());
}
private void validate(Map.Entry<K, PropertyMapEntry<K, V>> entry) {
validate(entry.getValue());
}
private void validate(PropertyMapEntry<K, V> supplier) {
assertNotNull(supplier, "key '" + supplier.getKey() + "' supplier value");
}
private static class PropertyMapEntry<K, V> implements Named {
private final K key;
private final Supplier<V> value;
private final PropertyNormalization normalization;
PropertyMapEntry(K key, Supplier<V> value, PropertyNormalization normalization) {
this.key = key;
this.value = value;
this.normalization = normalization;
}
@Input
public PropertyNormalization getNormalization() {
return normalization;
}
@Override
@Input
public String getName() {
return getKey().toString();
}
@Input
public K getKey() {
return key;
}
@Input
public V getValue() {
return value.get();
}
}
}