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.documentsui; 18 19 import android.net.Uri; 20 import android.provider.DocumentsContract; 21 import android.util.Log; 22 23 import com.android.documentsui.model.RootInfo; 24 25 final class LoadRootTask extends PairedTask<BaseActivity, Void, RootInfo> { 26 private static final String TAG = "RestoreRootTask"; 27 28 private final Uri mRootUri; 29 LoadRootTask(BaseActivity activity, Uri rootUri)30 public LoadRootTask(BaseActivity activity, Uri rootUri) { 31 super(activity); 32 mRootUri = rootUri; 33 } 34 35 @Override run(Void... params)36 protected RootInfo run(Void... params) { 37 String rootId = DocumentsContract.getRootId(mRootUri); 38 return mOwner.mRoots.getRootOneshot(mRootUri.getAuthority(), rootId); 39 } 40 41 @Override finish(RootInfo root)42 protected void finish(RootInfo root) { 43 mOwner.mState.restored = true; 44 45 if (root != null) { 46 mOwner.onRootPicked(root); 47 } else { 48 Log.w(TAG, "Failed to find root: " + mRootUri); 49 mOwner.finish(); 50 } 51 } 52 } 53