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/*
* Copyright (C) 2020 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.utils.blob;
import static com.google.common.truth.Truth.assertThat;
import android.app.blob.BlobHandle;
import android.app.blob.BlobStoreManager;
import android.app.blob.LeaseInfo;
import android.content.Context;
import android.content.res.Resources;
import android.os.FileUtils;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import androidx.test.platform.app.InstrumentationRegistry;
import androidx.test.uiautomator.UiDevice;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
public class Utils {
public static final String TAG = "BlobStoreTest";
public static final int BUFFER_SIZE_BYTES = 16 * 1024;
public static final long KB_IN_BYTES = 1000;
public static final long MB_IN_BYTES = KB_IN_BYTES * 1000;
public static void copy(InputStream in, OutputStream out, long lengthBytes)
throws IOException {
final byte[] buffer = new byte[BUFFER_SIZE_BYTES];
long bytesWrittern = 0;
while (bytesWrittern < lengthBytes) {
final int toWrite = (bytesWrittern + buffer.length <= lengthBytes)
? buffer.length : (int) (lengthBytes - bytesWrittern);
in.read(buffer, 0, toWrite);
out.write(buffer, 0, toWrite);
bytesWrittern += toWrite;
}
}
public static void writeToSession(BlobStoreManager.Session session, ParcelFileDescriptor input)
throws IOException {
try (FileInputStream in = new ParcelFileDescriptor.AutoCloseInputStream(input)) {
try (FileOutputStream out = new ParcelFileDescriptor.AutoCloseOutputStream(
session.openWrite(0, -1))) {
FileUtils.copy(in, out);
}
}
}
public static void writeToSession(BlobStoreManager.Session session, ParcelFileDescriptor input,
long lengthBytes) throws IOException {
try (FileInputStream in = new ParcelFileDescriptor.AutoCloseInputStream(input)) {
writeToSession(session, in, 0, lengthBytes, lengthBytes);
}
}
public static void writeToSession(BlobStoreManager.Session session, FileInputStream in,
long offsetBytes, long lengthBytes, long allocateBytes) throws IOException {
in.getChannel().position(offsetBytes);
try (FileOutputStream out = new ParcelFileDescriptor.AutoCloseOutputStream(
session.openWrite(offsetBytes, allocateBytes))) {
copy(in, out, lengthBytes);
}
}
public static void assertLeasedBlobs(BlobStoreManager blobStoreManager,
BlobHandle... expectedBlobHandles) throws IOException {
assertThat(blobStoreManager.getLeasedBlobs()).containsExactly(
(Object[]) expectedBlobHandles);
}
public static void assertNoLeasedBlobs(BlobStoreManager blobStoreManager)
throws IOException {
assertThat(blobStoreManager.getLeasedBlobs()).isEmpty();
}
public static void acquireLease(Context context,
BlobHandle blobHandle, CharSequence description) throws IOException {
final BlobStoreManager blobStoreManager = (BlobStoreManager) context.getSystemService(
Context.BLOB_STORE_SERVICE);
blobStoreManager.acquireLease(blobHandle, description);
final LeaseInfo leaseInfo = blobStoreManager.getLeaseInfo(blobHandle);
assertLeaseInfo(leaseInfo, context.getPackageName(), 0,
Resources.ID_NULL, description);
}
public static void acquireLease(Context context,
BlobHandle blobHandle, int descriptionResId) throws IOException {
final BlobStoreManager blobStoreManager = (BlobStoreManager) context.getSystemService(
Context.BLOB_STORE_SERVICE);
blobStoreManager.acquireLease(blobHandle, descriptionResId);
final LeaseInfo leaseInfo = blobStoreManager.getLeaseInfo(blobHandle);
assertLeaseInfo(leaseInfo, context.getPackageName(), 0,
descriptionResId, context.getString(descriptionResId));
}
public static void acquireLease(Context context,
BlobHandle blobHandle, CharSequence description,
long expiryTimeMs) throws IOException {
final BlobStoreManager blobStoreManager = (BlobStoreManager) context.getSystemService(
Context.BLOB_STORE_SERVICE);
blobStoreManager.acquireLease(blobHandle, description, expiryTimeMs);
final LeaseInfo leaseInfo = blobStoreManager.getLeaseInfo(blobHandle);
assertLeaseInfo(leaseInfo, context.getPackageName(), expiryTimeMs,
Resources.ID_NULL, description);
}
public static void acquireLease(Context context,
BlobHandle blobHandle, int descriptionResId,
long expiryTimeMs) throws IOException {
final BlobStoreManager blobStoreManager = (BlobStoreManager) context.getSystemService(
Context.BLOB_STORE_SERVICE);
blobStoreManager.acquireLease(blobHandle, descriptionResId, expiryTimeMs);
final LeaseInfo leaseInfo = blobStoreManager.getLeaseInfo(blobHandle);
assertLeaseInfo(leaseInfo, context.getPackageName(), expiryTimeMs,
descriptionResId, context.getString(descriptionResId));
}
public static void releaseLease(Context context,
BlobHandle blobHandle) throws IOException {
final BlobStoreManager blobStoreManager = (BlobStoreManager) context.getSystemService(
Context.BLOB_STORE_SERVICE);
blobStoreManager.releaseLease(blobHandle);
try {
assertThat(blobStoreManager.getLeaseInfo(blobHandle)).isNull();
} catch (SecurityException e) {
// Expected, ignore
}
}
private static void assertLeaseInfo(LeaseInfo leaseInfo, String packageName,
long expiryTimeMs, int descriptionResId, CharSequence description) {
assertThat(leaseInfo.getPackageName()).isEqualTo(packageName);
assertThat(leaseInfo.getExpiryTimeMillis()).isEqualTo(expiryTimeMs);
assertThat(leaseInfo.getDescriptionResId()).isEqualTo(descriptionResId);
assertThat(leaseInfo.getDescription()).isEqualTo(description);
}
public static void triggerIdleMaintenance() throws IOException {
runShellCmd("cmd blob_store idle-maintenance");
}
public static String runShellCmd(String cmd) throws IOException {
final UiDevice uiDevice = UiDevice.getInstance(
InstrumentationRegistry.getInstrumentation());
final String result = uiDevice.executeShellCommand(cmd).trim();
Log.i(TAG, "Output of '" + cmd + "': '" + result + "'");
return result;
}
}
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