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      1 /*
      2  * Copyright (C) 2018 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 package com.android.libcore.timezone.tzlookup.zonetree;
     17 
     18 import java.time.Instant;
     19 import java.util.HashMap;
     20 import java.util.Map;
     21 
     22 /**
     23  * A record for a country of when zones stopped being (effectively) used.
     24  */
     25 public final class CountryZoneUsage {
     26     private final String isoCode;
     27     private final Map<String, Entry> zoneIdEntryMap = new HashMap<>();
     28 
     29     public CountryZoneUsage(String isoCode) {
     30         this.isoCode = isoCode;
     31     }
     32 
     33     public String getIsoCode() {
     34         return isoCode;
     35     }
     36 
     37     void addEntry(String zoneId, Instant notUsedAfterInstant) {
     38         if (zoneIdEntryMap.containsKey(zoneId)) {
     39             throw new IllegalArgumentException(
     40                     "Entry exists for " + zoneId + " for isoCode=" + isoCode);
     41         }
     42         zoneIdEntryMap.put(zoneId, new Entry(zoneId, notUsedAfterInstant));
     43     }
     44 
     45     public boolean hasEntry(String zoneId) {
     46         return zoneIdEntryMap.containsKey(zoneId);
     47     }
     48 
     49     public Instant getNotUsedAfterInstant(String zoneId) {
     50         Entry entry = zoneIdEntryMap.get(zoneId);
     51         if (entry == null) {
     52             throw new IllegalArgumentException(
     53                     "No entry for " + zoneId+ " for isoCode=" + isoCode);
     54         }
     55         return entry.notUsedAfter;
     56     }
     57 
     58     private static class Entry {
     59         final String zoneId;
     60         final Instant notUsedAfter;
     61 
     62         Entry(String zoneId, Instant notUsedAfter) {
     63             this.zoneId = zoneId;
     64             this.notUsedAfter = notUsedAfter;
     65         }
     66     }
     67 }
     68