| /* |
| * Copyright (C) 2015 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; |
| |
| import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadata; |
| import java.util.List; |
| import java.util.concurrent.ConcurrentHashMap; |
| |
| /** |
| * Implementation of {@link MetadataSource} that reads from multiple resource files. |
| */ |
| final class MultiFileMetadataSourceImpl implements MetadataSource { |
| // The prefix of the binary files containing phone number metadata for different regions. |
| // This enables us to set up with different metadata, such as for testing. |
| private final String phoneNumberMetadataFilePrefix; |
| |
| // The {@link MetadataLoader} used to inject alternative metadata sources. |
| private final MetadataLoader metadataLoader; |
| |
| // A mapping from a region code to the phone number metadata for that region code. |
| // Unlike the mappings for alternate formats and short number metadata, the phone number metadata |
| // is loaded from a non-statically determined file prefix; therefore this map is bound to the |
| // instance and not static. |
| private final ConcurrentHashMap<String, PhoneMetadata> geographicalRegions = |
| new ConcurrentHashMap<String, PhoneMetadata>(); |
| |
| // A mapping from a country calling code for a non-geographical entity to the phone number |
| // metadata for that country calling code. Examples of the country calling codes include 800 |
| // (International Toll Free Service) and 808 (International Shared Cost Service). |
| // Unlike the mappings for alternate formats and short number metadata, the phone number metadata |
| // is loaded from a non-statically determined file prefix; therefore this map is bound to the |
| // instance and not static. |
| private final ConcurrentHashMap<Integer, PhoneMetadata> nonGeographicalRegions = |
| new ConcurrentHashMap<Integer, PhoneMetadata>(); |
| |
| // It is assumed that metadataLoader is not null. Checks should happen before passing it in here. |
| // @VisibleForTesting |
| MultiFileMetadataSourceImpl(String phoneNumberMetadataFilePrefix, MetadataLoader metadataLoader) { |
| this.phoneNumberMetadataFilePrefix = phoneNumberMetadataFilePrefix; |
| this.metadataLoader = metadataLoader; |
| } |
| |
| // It is assumed that metadataLoader is not null. Checks should happen before passing it in here. |
| MultiFileMetadataSourceImpl(MetadataLoader metadataLoader) { |
| this(MetadataManager.MULTI_FILE_PHONE_NUMBER_METADATA_FILE_PREFIX, metadataLoader); |
| } |
| |
| @Override |
| public PhoneMetadata getMetadataForRegion(String regionCode) { |
| return MetadataManager.getMetadataFromMultiFilePrefix(regionCode, geographicalRegions, |
| phoneNumberMetadataFilePrefix, metadataLoader); |
| } |
| |
| @Override |
| public PhoneMetadata getMetadataForNonGeographicalRegion(int countryCallingCode) { |
| if (!isNonGeographical(countryCallingCode)) { |
| // The given country calling code was for a geographical region. |
| return null; |
| } |
| return MetadataManager.getMetadataFromMultiFilePrefix(countryCallingCode, nonGeographicalRegions, |
| phoneNumberMetadataFilePrefix, metadataLoader); |
| } |
| |
| // A country calling code is non-geographical if it only maps to the non-geographical region code, |
| // i.e. "001". |
| private boolean isNonGeographical(int countryCallingCode) { |
| List<String> regionCodes = |
| CountryCodeToRegionCodeMap.getCountryCodeToRegionCodeMap().get(countryCallingCode); |
| return (regionCodes.size() == 1 |
| && PhoneNumberUtil.REGION_CODE_FOR_NON_GEO_ENTITY.equals(regionCodes.get(0))); |
| } |
| } |