| /* |
| * Copyright (C) 2016 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 com.android.documentsui; |
| |
| import android.content.ContentProviderClient; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.net.Uri; |
| import android.provider.DocumentsContract; |
| import android.util.Log; |
| |
| import java.util.function.BooleanSupplier; |
| import java.util.function.Consumer; |
| |
| final class EjectRootTask extends CheckedTask<Void, Boolean> { |
| private final String mAuthority; |
| private final String mRootId; |
| private final Consumer<Boolean> mCallback; |
| private Context mContext; |
| |
| /** |
| * @param ejectCanceledCheck The method reference we use to see whether eject should be stopped |
| * at any point |
| * @param finishCallback The end callback necessary when the eject task finishes |
| */ |
| public EjectRootTask(Context context, |
| String authority, |
| String rootId, |
| BooleanSupplier ejectCanceledCheck, |
| Consumer<Boolean> finishCallback) { |
| super(ejectCanceledCheck::getAsBoolean); |
| mAuthority = authority; |
| mRootId = rootId; |
| mContext = context; |
| mCallback = finishCallback; |
| } |
| |
| @Override |
| protected Boolean run(Void... params) { |
| final ContentResolver resolver = mContext.getContentResolver(); |
| |
| Uri rootUri = DocumentsContract.buildRootUri(mAuthority, mRootId); |
| ContentProviderClient client = null; |
| try { |
| client = DocumentsApplication.acquireUnstableProviderOrThrow( |
| resolver, mAuthority); |
| return DocumentsContract.ejectRoot(client, rootUri); |
| } catch (Exception e) { |
| Log.w(Shared.TAG, "Failed to eject root", e); |
| } finally { |
| ContentProviderClient.releaseQuietly(client); |
| } |
| |
| return false; |
| } |
| |
| @Override |
| protected void finish(Boolean ejected) { |
| mCallback.accept(ejected); |
| } |
| } |