com.google.i18n.phonenumbers.metadata.source.MapBackedMetadataContainer Maven / Gradle / Ivy
/*
* Copyright (C) 2022 The Libphonenumber 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
*
* 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.
*/
package com.google.i18n.phonenumbers.metadata.source;
import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadata;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
/**
* A {@link MetadataContainer} implementation backed by a {@link ConcurrentHashMap} with generic
* keys.
*/
final class MapBackedMetadataContainer implements MetadataContainer {
static MapBackedMetadataContainer byRegionCode() {
return new MapBackedMetadataContainer<>(
new KeyProvider() {
@Override
public String getKeyOf(PhoneMetadata phoneMetadata) {
return phoneMetadata.getId();
}
});
}
static MapBackedMetadataContainer byCountryCallingCode() {
return new MapBackedMetadataContainer<>(
new KeyProvider() {
@Override
public Integer getKeyOf(PhoneMetadata phoneMetadata) {
return phoneMetadata.getCountryCode();
}
});
}
private final ConcurrentMap metadataMap;
private final KeyProvider keyProvider;
private MapBackedMetadataContainer(KeyProvider keyProvider) {
this.metadataMap = new ConcurrentHashMap<>();
this.keyProvider = keyProvider;
}
PhoneMetadata getMetadataBy(T key) {
return key != null ? metadataMap.get(key) : null;
}
KeyProvider getKeyProvider() {
return keyProvider;
}
@Override
public void accept(PhoneMetadata phoneMetadata) {
metadataMap.put(keyProvider.getKeyOf(phoneMetadata), phoneMetadata);
}
interface KeyProvider {
T getKeyOf(PhoneMetadata phoneMetadata);
}
}