| /* |
| * 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.roots; |
| |
| import static com.android.documentsui.base.SharedMinimal.DEBUG; |
| |
| import android.app.Activity; |
| import android.net.Uri; |
| import android.provider.DocumentsContract; |
| import android.util.Log; |
| |
| import com.android.documentsui.AbstractActionHandler.CommonAddons; |
| import com.android.documentsui.base.PairedTask; |
| import com.android.documentsui.base.RootInfo; |
| import com.android.documentsui.base.State; |
| |
| public final class LoadRootTask<T extends Activity & CommonAddons> |
| extends PairedTask<T, Void, RootInfo> { |
| private static final String TAG = "LoadRootTask"; |
| |
| private final State mState; |
| private final ProvidersAccess mProviders; |
| private final Uri mRootUri; |
| |
| |
| public LoadRootTask(T activity, ProvidersAccess providers, State state, Uri rootUri) { |
| super(activity); |
| mState = state; |
| mProviders = providers; |
| mRootUri = rootUri; |
| } |
| |
| @Override |
| protected RootInfo run(Void... params) { |
| if (DEBUG) Log.d(TAG, "Loading root: " + mRootUri); |
| |
| String rootId = DocumentsContract.getRootId(mRootUri); |
| return mProviders.getRootOneshot(mRootUri.getAuthority(), rootId); |
| } |
| |
| @Override |
| protected void finish(RootInfo root) { |
| if (root != null) { |
| if (DEBUG) Log.d(TAG, "Loaded root: " + root); |
| mOwner.onRootPicked(root); |
| } else { |
| Log.w(TAG, "Failed to find root: " + mRootUri); |
| mOwner.finish(); |
| } |
| } |
| } |