1 /* 2 * Copyright (C) 2015 The Libphonenumber Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.i18n.phonenumbers; 18 19 import com.google.i18n.phonenumbers.Phonemetadata.PhoneMetadata; 20 import java.util.List; 21 import java.util.concurrent.ConcurrentHashMap; 22 23 /** 24 * Implementation of {@link MetadataSource} that reads from multiple resource files. 25 */ 26 final class MultiFileMetadataSourceImpl implements MetadataSource { 27 // The prefix of the binary files containing phone number metadata for different regions. 28 // This enables us to set up with different metadata, such as for testing. 29 private final String phoneNumberMetadataFilePrefix; 30 31 // The {@link MetadataLoader} used to inject alternative metadata sources. 32 private final MetadataLoader metadataLoader; 33 34 // A mapping from a region code to the phone number metadata for that region code. 35 // Unlike the mappings for alternate formats and short number metadata, the phone number metadata 36 // is loaded from a non-statically determined file prefix; therefore this map is bound to the 37 // instance and not static. 38 private final ConcurrentHashMap<String, PhoneMetadata> geographicalRegions = 39 new ConcurrentHashMap<String, PhoneMetadata>(); 40 41 // A mapping from a country calling code for a non-geographical entity to the phone number 42 // metadata for that country calling code. Examples of the country calling codes include 800 43 // (International Toll Free Service) and 808 (International Shared Cost Service). 44 // Unlike the mappings for alternate formats and short number metadata, the phone number metadata 45 // is loaded from a non-statically determined file prefix; therefore this map is bound to the 46 // instance and not static. 47 private final ConcurrentHashMap<Integer, PhoneMetadata> nonGeographicalRegions = 48 new ConcurrentHashMap<Integer, PhoneMetadata>(); 49 50 // It is assumed that metadataLoader is not null. Checks should happen before passing it in here. 51 // @VisibleForTesting 52 MultiFileMetadataSourceImpl(String phoneNumberMetadataFilePrefix, MetadataLoader metadataLoader) { 53 this.phoneNumberMetadataFilePrefix = phoneNumberMetadataFilePrefix; 54 this.metadataLoader = metadataLoader; 55 } 56 57 // It is assumed that metadataLoader is not null. Checks should happen before passing it in here. 58 MultiFileMetadataSourceImpl(MetadataLoader metadataLoader) { 59 this(MetadataManager.MULTI_FILE_PHONE_NUMBER_METADATA_FILE_PREFIX, metadataLoader); 60 } 61 62 @Override 63 public PhoneMetadata getMetadataForRegion(String regionCode) { 64 return MetadataManager.getMetadataFromMultiFilePrefix(regionCode, geographicalRegions, 65 phoneNumberMetadataFilePrefix, metadataLoader); 66 } 67 68 @Override 69 public PhoneMetadata getMetadataForNonGeographicalRegion(int countryCallingCode) { 70 if (!isNonGeographical(countryCallingCode)) { 71 // The given country calling code was for a geographical region. 72 return null; 73 } 74 return MetadataManager.getMetadataFromMultiFilePrefix(countryCallingCode, nonGeographicalRegions, 75 phoneNumberMetadataFilePrefix, metadataLoader); 76 } 77 78 // A country calling code is non-geographical if it only maps to the non-geographical region code, 79 // i.e. "001". 80 private boolean isNonGeographical(int countryCallingCode) { 81 List<String> regionCodes = 82 CountryCodeToRegionCodeMap.getCountryCodeToRegionCodeMap().get(countryCallingCode); 83 return (regionCodes.size() == 1 84 && PhoneNumberUtil.REGION_CODE_FOR_NON_GEO_ENTITY.equals(regionCodes.get(0))); 85 } 86 } 87
