| /* |
| * Copyright (C) 2019 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.content.pm; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| |
| /** |
| * Data loader manager takes care of data loaders of different packages. It provides methods to |
| * initialize a data loader binder service (binding and creating it), to return a binder of the data |
| * loader binder service and to destroy a data loader binder service. |
| * @see com.android.server.pm.DataLoaderManagerService |
| * @hide |
| */ |
| public class DataLoaderManager { |
| private static final String TAG = "DataLoaderManager"; |
| private final IDataLoaderManager mService; |
| |
| public DataLoaderManager(IDataLoaderManager service) { |
| mService = service; |
| } |
| |
| /** |
| * Finds a data loader binder service and binds to it. This requires PackageManager. |
| * |
| * @param dataLoaderId ID for the new data loader binder service. |
| * @param params Bundle that contains parameters to configure the data loader service. |
| * Must contain: |
| * key: "packageName", value: String, package name of data loader service |
| * package; |
| * key: "extras", value: Bundle, client-specific data structures |
| * |
| * @param listener Callback for the data loader service to report status back to the |
| * caller. |
| * @return false if 1) target ID collides with a data loader that is already bound to data |
| * loader manager; 2) package name is not specified; 3) fails to find data loader package; |
| * or 4) fails to bind to the specified data loader service, otherwise return true. |
| */ |
| public boolean initializeDataLoader(int dataLoaderId, @NonNull Bundle params, |
| @NonNull IDataLoaderStatusListener listener) { |
| try { |
| return mService.initializeDataLoader(dataLoaderId, params, listener); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Returns a binder interface of the data loader binder service, given its ID. |
| */ |
| @Nullable |
| public IDataLoader getDataLoader(int dataLoaderId) { |
| try { |
| return mService.getDataLoader(dataLoaderId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Destroys the data loader binder service and removes it from data loader manager service. |
| */ |
| @Nullable |
| public void destroyDataLoader(int dataLoaderId) { |
| try { |
| mService.destroyDataLoader(dataLoaderId); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| } |