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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.dialer.database;
     18 
     19 import android.content.Context;
     20 import java.util.Objects;
     21 
     22 /** Accessor for the database bindings. */
     23 public class Database {
     24 
     25   private static DatabaseBindings databaseBindings;
     26 
     27   private Database() {}
     28 
     29   public static DatabaseBindings get(Context context) {
     30     Objects.requireNonNull(context);
     31     if (databaseBindings != null) {
     32       return databaseBindings;
     33     }
     34 
     35     Context application = context.getApplicationContext();
     36     if (application instanceof DatabaseBindingsFactory) {
     37       databaseBindings = ((DatabaseBindingsFactory) application).newDatabaseBindings();
     38     }
     39 
     40     if (databaseBindings == null) {
     41       databaseBindings = new DatabaseBindingsStub();
     42     }
     43     return databaseBindings;
     44   }
     45 
     46   public static void setForTesting(DatabaseBindings databaseBindings) {
     47     Database.databaseBindings = databaseBindings;
     48   }
     49 }
     50