Files
plusone-commons/src/main/java/xyz/zhouxy/plusone/commons/collection/MapWrapper.java
2024-10-12 00:27:28 +08:00

86 lines
2.6 KiB
Java

/*
* Copyright 2022-2024 the original author or authors.
*
* Licensed 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
*
* https://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.
*/
package xyz.zhouxy.plusone.commons.collection;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Map;
import java.util.SortedMap;
import java.util.TreeMap;
import java.util.function.Consumer;
import com.google.common.annotations.Beta;
@Beta
public final class MapWrapper<K, V> extends AbstractMapWrapper<K, V, MapWrapper<K, V>> {
private MapWrapper(Map<K, V> map, Consumer<K> keyChecker, Consumer<V> valueChecker) {
super(map, keyChecker, valueChecker);
}
public static <K, V> Builder<K, V> wrap(Map<K, V> map) {
return new Builder<>(map);
}
public static <K, V> Builder<K, V> wrapHashMap() {
return new Builder<>(new HashMap<>());
}
public static <K, V> Builder<K, V> wrapHashMap(int initialCapacity) {
return new Builder<>(new HashMap<>(initialCapacity));
}
public static <K, V> Builder<K, V> wrapHashMap(int initialCapacity, float loadFactor) {
return new Builder<>(new HashMap<>(initialCapacity, loadFactor));
}
public static <K extends Comparable<? super K>, V> Builder<K, V> wrapTreeMap() {
return new Builder<>(new TreeMap<>());
}
public static <K, V> Builder<K, V> wrapTreeMap(SortedMap<K, ? extends V> m) {
return new Builder<>(new TreeMap<>(m));
}
public static <K, V> Builder<K, V> wrapTreeMap(Comparator<? super K> comparator) {
return new Builder<>(new TreeMap<>(comparator));
}
public static final class Builder<K, V> extends AbstractMapWrapper.Builder<K, V, MapWrapper<K, V>> {
private Builder(Map<K, V> map) {
super(map);
}
@Override
public MapWrapper<K, V> build() {
return new MapWrapper<>(map, keyChecker, valueChecker);
}
@Override
public MapWrapper<K, V> buildUnmodifiableMap() {
return new MapWrapper<>(Collections.unmodifiableMap(map), keyChecker, valueChecker);
}
}
@Override
protected MapWrapper<K, V> getSelf() {
return this;
}
}