| /* |
| * Copyright (C) 2012 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.android.i18n.phonenumbers; |
| |
| import com.android.i18n.phonenumbers.Phonemetadata.PhoneMetadata; |
| import com.android.i18n.phonenumbers.Phonemetadata.PhoneMetadataCollection; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.ObjectInputStream; |
| import java.util.Collections; |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| import java.util.Set; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| /** |
| * Class encapsulating loading of PhoneNumber Metadata information. Currently this is used only for |
| * additional data files such as PhoneNumberAlternateFormats, but in the future it is envisaged it |
| * would handle the main metadata file (PhoneNumberMetaData.xml) as well. |
| * |
| * @author Lara Rennie |
| */ |
| class MetadataManager { |
| private static final String ALTERNATE_FORMATS_FILE_PREFIX = |
| "/com/android/i18n/phonenumbers/data/PhoneNumberAlternateFormatsProto"; |
| |
| private static final Logger LOGGER = Logger.getLogger(MetadataManager.class.getName()); |
| |
| private static final Map<Integer, PhoneMetadata> callingCodeToAlternateFormatsMap = |
| Collections.synchronizedMap(new HashMap<Integer, PhoneMetadata>()); |
| |
| // A set of which country calling codes there are alternate format data for. If the set has an |
| // entry for a code, then there should be data for that code linked into the resources. |
| private static final Set<Integer> countryCodeSet = |
| AlternateFormatsCountryCodeSet.getCountryCodeSet(); |
| |
| private MetadataManager() { |
| } |
| |
| private static void close(InputStream in) { |
| if (in != null) { |
| try { |
| in.close(); |
| } catch (IOException e) { |
| LOGGER.log(Level.WARNING, e.toString()); |
| } |
| } |
| } |
| |
| private static void loadMetadataFromFile(int countryCallingCode) { |
| InputStream source = PhoneNumberMatcher.class.getResourceAsStream( |
| ALTERNATE_FORMATS_FILE_PREFIX + "_" + countryCallingCode); |
| ObjectInputStream in = null; |
| try { |
| in = new ObjectInputStream(source); |
| PhoneMetadataCollection alternateFormats = new PhoneMetadataCollection(); |
| alternateFormats.readExternal(in); |
| for (PhoneMetadata metadata : alternateFormats.getMetadataList()) { |
| callingCodeToAlternateFormatsMap.put(metadata.getCountryCode(), metadata); |
| } |
| } catch (IOException e) { |
| LOGGER.log(Level.WARNING, e.toString()); |
| } finally { |
| close(in); |
| } |
| } |
| |
| static PhoneMetadata getAlternateFormatsForCountry(int countryCallingCode) { |
| if (!countryCodeSet.contains(countryCallingCode)) { |
| return null; |
| } |
| synchronized (callingCodeToAlternateFormatsMap) { |
| if (!callingCodeToAlternateFormatsMap.containsKey(countryCallingCode)) { |
| loadMetadataFromFile(countryCallingCode); |
| } |
| } |
| return callingCodeToAlternateFormatsMap.get(countryCallingCode); |
| } |
| } |