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      1 /*
      2  * Copyright (C) 2016 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.deskclock.data;
     18 
     19 import android.text.TextUtils;
     20 
     21 /**
     22  * A read-only domain object representing the timezones from which to choose a "home" timezone.
     23  */
     24 public final class TimeZones {
     25 
     26     private final CharSequence[] mTimeZoneIds;
     27     private final CharSequence[] mTimeZoneNames;
     28 
     29     TimeZones(CharSequence[] timeZoneIds, CharSequence[] timeZoneNames) {
     30         mTimeZoneIds = timeZoneIds;
     31         mTimeZoneNames = timeZoneNames;
     32     }
     33 
     34     public CharSequence[] getTimeZoneIds() {
     35         return mTimeZoneIds;
     36     }
     37 
     38     public CharSequence[] getTimeZoneNames() {
     39         return mTimeZoneNames;
     40     }
     41 
     42     /**
     43      * @param timeZoneId identifies the timezone to locate
     44      * @return the timezone name with the {@code timeZoneId}; {@code null} if it does not exist
     45      */
     46     CharSequence getTimeZoneName(CharSequence timeZoneId) {
     47         for (int i = 0; i < mTimeZoneIds.length; i++) {
     48             if (TextUtils.equals(timeZoneId, mTimeZoneIds[i])) {
     49                 return mTimeZoneNames[i];
     50             }
     51         }
     52 
     53         return null;
     54     }
     55 
     56     /**
     57      * @param timeZoneId identifies the timezone to locate
     58      * @return {@code true} iff the timezone with the given id is present
     59      */
     60     boolean contains(String timeZoneId) {
     61         return getTimeZoneName(timeZoneId) != null;
     62     }
     63 }