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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      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.providers.contacts;
     18 
     19 import android.content.ContentValues;
     20 import android.content.Context;
     21 import android.provider.CallLog.Calls;
     22 import android.telephony.PhoneNumberUtils;
     23 import android.text.TextUtils;
     24 
     25 import com.android.i18n.phonenumbers.NumberParseException;
     26 import com.android.i18n.phonenumbers.PhoneNumberUtil;
     27 import com.android.i18n.phonenumbers.Phonenumber.PhoneNumber;
     28 import com.android.i18n.phonenumbers.geocoding.PhoneNumberOfflineGeocoder;
     29 
     30 import com.google.android.collect.Sets;
     31 
     32 import java.util.Locale;
     33 import java.util.Set;
     34 
     35 /**
     36  * Default implementation of {@link CallLogInsertionHelper}.
     37  * <p>
     38  * It added the country ISO abbreviation and the geocoded location.
     39  * It checks for legacy unknown numbers and updates number presentation.
     40  * <p>
     41  * It uses {@link PhoneNumberOfflineGeocoder} to compute the geocoded location of a phone number.
     42  */
     43 /*package*/ class DefaultCallLogInsertionHelper implements CallLogInsertionHelper {
     44     private static DefaultCallLogInsertionHelper sInstance;
     45 
     46     private static final Set<String> LEGACY_UNKNOWN_NUMBERS = Sets.newHashSet("-1", "-2", "-3");
     47 
     48     private final CountryMonitor mCountryMonitor;
     49     private PhoneNumberUtil mPhoneNumberUtil;
     50     private PhoneNumberOfflineGeocoder mPhoneNumberOfflineGeocoder;
     51     private final Locale mLocale;
     52 
     53     public static synchronized DefaultCallLogInsertionHelper getInstance(Context context) {
     54         if (sInstance == null) {
     55             sInstance = new DefaultCallLogInsertionHelper(context);
     56         }
     57         return sInstance;
     58     }
     59 
     60     private DefaultCallLogInsertionHelper(Context context) {
     61         mCountryMonitor = new CountryMonitor(context);
     62         mLocale = context.getResources().getConfiguration().locale;
     63     }
     64 
     65     @Override
     66     public void addComputedValues(ContentValues values) {
     67         // Insert the current country code, so we know the country the number belongs to.
     68         String countryIso = getCurrentCountryIso();
     69         values.put(Calls.COUNTRY_ISO, countryIso);
     70         // Insert the geocoded location, so that we do not need to compute it on the fly.
     71         values.put(Calls.GEOCODED_LOCATION,
     72                 getGeocodedLocationFor(values.getAsString(Calls.NUMBER), countryIso));
     73 
     74         final String number = values.getAsString(Calls.NUMBER);
     75         if (LEGACY_UNKNOWN_NUMBERS.contains(number)) {
     76             values.put(Calls.NUMBER_PRESENTATION, Calls.PRESENTATION_UNKNOWN);
     77             values.put(Calls.NUMBER, "");
     78         }
     79 
     80         // Check for a normalized number; if not present attempt to determine one now.
     81         if (!values.containsKey(Calls.CACHED_NORMALIZED_NUMBER) &&
     82                 !TextUtils.isEmpty(number)) {
     83             String normalizedNumber = PhoneNumberUtils.formatNumberToE164(number, countryIso);
     84             if (!TextUtils.isEmpty(normalizedNumber)) {
     85                 values.put(Calls.CACHED_NORMALIZED_NUMBER, normalizedNumber);
     86             }
     87         }
     88     }
     89 
     90     private String getCurrentCountryIso() {
     91         return mCountryMonitor.getCountryIso();
     92     }
     93 
     94     private synchronized PhoneNumberUtil getPhoneNumberUtil() {
     95         if (mPhoneNumberUtil == null) {
     96             mPhoneNumberUtil = PhoneNumberUtil.getInstance();
     97         }
     98         return mPhoneNumberUtil;
     99     }
    100 
    101     private PhoneNumber parsePhoneNumber(String number, String countryIso) {
    102         try {
    103             return getPhoneNumberUtil().parse(number, countryIso);
    104         } catch (NumberParseException e) {
    105             return null;
    106         }
    107     }
    108 
    109     private synchronized PhoneNumberOfflineGeocoder getPhoneNumberOfflineGeocoder() {
    110         if (mPhoneNumberOfflineGeocoder == null) {
    111             mPhoneNumberOfflineGeocoder = PhoneNumberOfflineGeocoder.getInstance();
    112         }
    113         return mPhoneNumberOfflineGeocoder;
    114     }
    115 
    116     @Override
    117     public String getGeocodedLocationFor(String number, String countryIso) {
    118         PhoneNumber structuredPhoneNumber = parsePhoneNumber(number, countryIso);
    119         if (structuredPhoneNumber != null) {
    120             return getPhoneNumberOfflineGeocoder().getDescriptionForNumber(
    121                     structuredPhoneNumber, mLocale);
    122         } else {
    123             return null;
    124         }
    125     }
    126 }
    127