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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.providers.tv;
     18 
     19 import android.content.BroadcastReceiver;
     20 import android.content.ContentProviderOperation;
     21 import android.content.ContentProviderResult;
     22 import android.content.ContentResolver;
     23 import android.content.Context;
     24 import android.content.Intent;
     25 import android.content.OperationApplicationException;
     26 import android.media.tv.TvContract;
     27 import android.os.RemoteException;
     28 import android.util.Log;
     29 
     30 import java.util.ArrayList;
     31 import java.util.Arrays;
     32 
     33 /**
     34  * This will be launched when PACKAGE_FULLY_REMOVED intent is broadcast.
     35  */
     36 public class PackageRemovedReceiver extends BroadcastReceiver {
     37     private static final boolean DEBUG = false;
     38     private static final String TAG = "PackageRemovedReceiver";
     39 
     40     @Override
     41     public void onReceive(Context context, Intent intent) {
     42         if (Intent.ACTION_PACKAGE_FULLY_REMOVED.equals(intent.getAction())
     43                 && intent.getData() != null) {
     44             String packageName = intent.getData().getSchemeSpecificPart();
     45             ArrayList<ContentProviderOperation> operations = new ArrayList<>();
     46             int uid = intent.getIntExtra(Intent.EXTRA_UID, 0);
     47 
     48             String selection = TvContract.BaseTvColumns.COLUMN_PACKAGE_NAME + "=?";
     49             String[] selectionArgs = {packageName};
     50 
     51             operations.add(ContentProviderOperation.newDelete(TvContract.Channels.CONTENT_URI)
     52                     .withSelection(selection, selectionArgs).build());
     53             operations.add(ContentProviderOperation.newDelete(TvContract.Programs.CONTENT_URI)
     54                     .withSelection(selection, selectionArgs).build());
     55             operations.add(ContentProviderOperation
     56                     .newDelete(TvContract.WatchedPrograms.CONTENT_URI)
     57                     .withSelection(selection, selectionArgs).build());
     58             operations.add(ContentProviderOperation
     59                     .newDelete(TvContract.RecordedPrograms.CONTENT_URI)
     60                     .withSelection(selection, selectionArgs).build());
     61             operations.add(ContentProviderOperation
     62                     .newDelete(TvContract.WatchNextPrograms.CONTENT_URI)
     63                     .withSelection(selection, selectionArgs).build());
     64 
     65             ContentProviderResult[] results = null;
     66             try {
     67                 ContentResolver cr = context.getContentResolver();
     68                 results = cr.applyBatch(TvContract.AUTHORITY, operations);
     69             } catch (RemoteException | OperationApplicationException e) {
     70                 Log.e(TAG, "error in applyBatch", e);
     71             }
     72 
     73             if (DEBUG) {
     74                 Log.d(TAG, "onPackageFullyRemoved(packageName=" + packageName + ", uid=" + uid
     75                         + ")");
     76                 Log.d(TAG, "results=" + Arrays.toString(results));
     77             }
     78         }
     79     }
     80 }