75 lines
2.8 KiB
Java
75 lines
2.8 KiB
Java
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/*
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* Copyright (C) 2021 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package android.provider;
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import static android.provider.CloudMediaProviderContract.EXTRA_ERROR_MESSAGE;
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import static android.provider.CloudMediaProviderContract.EXTRA_FILE_DESCRIPTOR;
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import android.annotation.NonNull;
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import android.net.Uri;
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import android.os.Bundle;
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import android.os.ParcelFileDescriptor;
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import android.os.RemoteCallback;
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import android.os.RemoteException;
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import java.io.FileNotFoundException;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.TimeoutException;
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/**
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* @hide
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*/
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public final class AsyncContentProvider {
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private static final long TIMEOUT_IN_MINUTES = 3L;
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private final IAsyncContentProvider mAsyncContentProvider;
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public AsyncContentProvider(@NonNull IAsyncContentProvider asyncContentProvider) {
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this.mAsyncContentProvider = asyncContentProvider;
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}
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@NonNull
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public ParcelFileDescriptor openMedia(@NonNull Uri uri, @NonNull String mode)
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throws FileNotFoundException, ExecutionException, InterruptedException,
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TimeoutException, RemoteException {
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String mediaId = uri.getLastPathSegment();
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CompletableFuture<ParcelFileDescriptor> future = new CompletableFuture<>();
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RemoteCallback callback = new RemoteCallback(result -> setResult(result, future));
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mAsyncContentProvider.openMedia(mediaId, callback);
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return future.get(TIMEOUT_IN_MINUTES, TimeUnit.MINUTES);
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}
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private void setResult(Bundle result, CompletableFuture<ParcelFileDescriptor> future) {
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if (result.containsKey(EXTRA_FILE_DESCRIPTOR)) {
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ParcelFileDescriptor pfd = result.getParcelable(EXTRA_FILE_DESCRIPTOR);
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future.complete(pfd);
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} else if (result.containsKey(EXTRA_ERROR_MESSAGE)) {
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future.completeExceptionally(
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new RemoteException(
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result.getString(EXTRA_ERROR_MESSAGE)));
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} else {
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future.completeExceptionally(
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new RemoteException(
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"File descriptor and error message missing in response from "
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+ "CloudMediaProvider"));
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}
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}
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}
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