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      1 /*
      2  * Copyright (C) 2017 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.documentsui;
     18 
     19 import android.database.Cursor;
     20 import android.provider.DocumentsContract.Root;
     21 
     22 import java.io.FileNotFoundException;
     23 
     24 /**
     25  * Test provider that provides different kinds of broken behaviors DocumentsUI may encounter.
     26  */
     27 public class BrokenProvider extends TestRootProvider {
     28 
     29     // Root information for a root that throws when querying its root document
     30     private static final String BROKEN_ROOT_DOCUMENT_ID = "BROKEN_ROOT_DOCUMENT";
     31     private static final String BROKEN_ROOT_DOCUMENT_TITLE = "Broken Root Doc";
     32 
     33     @Override
     34     public boolean onCreate() {
     35         return true;
     36     }
     37 
     38     public BrokenProvider() {
     39         super(
     40                 BROKEN_ROOT_DOCUMENT_TITLE,
     41                 BROKEN_ROOT_DOCUMENT_ID,
     42                 Root.FLAG_SUPPORTS_CREATE,
     43                 BROKEN_ROOT_DOCUMENT_ID);
     44     }
     45 
     46     @Override
     47     public Cursor queryDocument(String documentId, String[] projection)
     48             throws FileNotFoundException {
     49         if (BROKEN_ROOT_DOCUMENT_ID.equals(documentId)) {
     50             throw new FileNotFoundException();
     51         }
     52 
     53         return null;
     54     }
     55 
     56     @Override
     57     public Cursor queryChildDocuments(String parentDocumentId, String[] projection,
     58             String sortOrder) throws FileNotFoundException {
     59         throw new UnsupportedOperationException();
     60     }
     61 }
     62