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/*
* Copyright (C) 2011 Google Inc.
*
* 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.geocoding;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.SortedMap;
/**
* Default area code map storage strategy that is used for data not containing description
* duplications. It is mainly intended to avoid the overhead of the string table management when it
* is actually unnecessary (i.e no string duplication).
*
* @author Shaopeng Jia
*/
class DefaultMapStorage extends AreaCodeMapStorageStrategy {
public DefaultMapStorage() {}
private int[] phoneNumberPrefixes;
private String[] descriptions;
@Override
public boolean isFlyweight() {
return false;
}
@Override
public int getPrefix(int index) {
return phoneNumberPrefixes[index];
}
@Override
public String getDescription(int index) {
return descriptions[index];
}
@Override
public void readFromSortedMap(SortedMap<Integer, String> sortedAreaCodeMap) {
numOfEntries = sortedAreaCodeMap.size();
phoneNumberPrefixes = new int[numOfEntries];
descriptions = new String[numOfEntries];
int index = 0;
for (int prefix : sortedAreaCodeMap.keySet()) {
phoneNumberPrefixes[index++] = prefix;
possibleLengths.add((int) Math.log10(prefix) + 1);
}
sortedAreaCodeMap.values().toArray(descriptions);
}
@Override
public void readExternal(ObjectInput objectInput) throws IOException {
numOfEntries = objectInput.readInt();
if (phoneNumberPrefixes == null || phoneNumberPrefixes.length < numOfEntries) {
phoneNumberPrefixes = new int[numOfEntries];
}
if (descriptions == null || descriptions.length < numOfEntries) {
descriptions = new String[numOfEntries];
}
for (int i = 0; i < numOfEntries; i++) {
phoneNumberPrefixes[i] = objectInput.readInt();
descriptions[i] = objectInput.readUTF();
}
int sizeOfLengths = objectInput.readInt();
possibleLengths.clear();
for (int i = 0; i < sizeOfLengths; i++) {
possibleLengths.add(objectInput.readInt());
}
}
@Override
public void writeExternal(ObjectOutput objectOutput) throws IOException {
objectOutput.writeInt(numOfEntries);
for (int i = 0; i < numOfEntries; i++) {
objectOutput.writeInt(phoneNumberPrefixes[i]);
objectOutput.writeUTF(descriptions[i]);
}
int sizeOfLengths = possibleLengths.size();
objectOutput.writeInt(sizeOfLengths);
for (Integer length : possibleLengths) {
objectOutput.writeInt(length);
}
}
}
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