1 /* 2 * Copyright (C) 2011 Google Inc. 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.android.i18n.phonenumbers.geocoding; 18 19 import java.io.IOException; 20 import java.io.ObjectInput; 21 import java.io.ObjectOutput; 22 import java.util.SortedMap; 23 24 /** 25 * Default area code map storage strategy that is used for data not containing description 26 * duplications. It is mainly intended to avoid the overhead of the string table management when it 27 * is actually unnecessary (i.e no string duplication). 28 * 29 * @author Shaopeng Jia 30 */ 31 class DefaultMapStorage extends AreaCodeMapStorageStrategy { 32 DefaultMapStorage()33 public DefaultMapStorage() {} 34 35 private int[] phoneNumberPrefixes; 36 private String[] descriptions; 37 38 @Override isFlyweight()39 public boolean isFlyweight() { 40 return false; 41 } 42 43 @Override getPrefix(int index)44 public int getPrefix(int index) { 45 return phoneNumberPrefixes[index]; 46 } 47 48 @Override getDescription(int index)49 public String getDescription(int index) { 50 return descriptions[index]; 51 } 52 53 @Override readFromSortedMap(SortedMap<Integer, String> sortedAreaCodeMap)54 public void readFromSortedMap(SortedMap<Integer, String> sortedAreaCodeMap) { 55 numOfEntries = sortedAreaCodeMap.size(); 56 phoneNumberPrefixes = new int[numOfEntries]; 57 descriptions = new String[numOfEntries]; 58 int index = 0; 59 for (int prefix : sortedAreaCodeMap.keySet()) { 60 phoneNumberPrefixes[index++] = prefix; 61 possibleLengths.add((int) Math.log10(prefix) + 1); 62 } 63 sortedAreaCodeMap.values().toArray(descriptions); 64 } 65 66 @Override readExternal(ObjectInput objectInput)67 public void readExternal(ObjectInput objectInput) throws IOException { 68 numOfEntries = objectInput.readInt(); 69 if (phoneNumberPrefixes == null || phoneNumberPrefixes.length < numOfEntries) { 70 phoneNumberPrefixes = new int[numOfEntries]; 71 } 72 if (descriptions == null || descriptions.length < numOfEntries) { 73 descriptions = new String[numOfEntries]; 74 } 75 for (int i = 0; i < numOfEntries; i++) { 76 phoneNumberPrefixes[i] = objectInput.readInt(); 77 descriptions[i] = objectInput.readUTF(); 78 } 79 int sizeOfLengths = objectInput.readInt(); 80 possibleLengths.clear(); 81 for (int i = 0; i < sizeOfLengths; i++) { 82 possibleLengths.add(objectInput.readInt()); 83 } 84 } 85 86 @Override writeExternal(ObjectOutput objectOutput)87 public void writeExternal(ObjectOutput objectOutput) throws IOException { 88 objectOutput.writeInt(numOfEntries); 89 for (int i = 0; i < numOfEntries; i++) { 90 objectOutput.writeInt(phoneNumberPrefixes[i]); 91 objectOutput.writeUTF(descriptions[i]); 92 } 93 int sizeOfLengths = possibleLengths.size(); 94 objectOutput.writeInt(sizeOfLengths); 95 for (Integer length : possibleLengths) { 96 objectOutput.writeInt(length); 97 } 98 } 99 } 100