| /* |
| * Copyright (C) 2017 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 android.server.wm; |
| |
| import android.app.Service; |
| import android.content.Intent; |
| import android.os.IBinder; |
| import android.util.Log; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| |
| /** |
| * A service collecting data from other apps used by a test. |
| * |
| * Use {@link TestLogClient} to send data to this service. |
| */ |
| public class TestLogService extends Service { |
| private static final String TAG = "TestLogService"; |
| |
| private static final Object mLock = new Object(); |
| |
| static class ClientChannel { |
| final String mStopKey; |
| final CountDownLatch mLatch = new CountDownLatch(1); |
| final Map<String, String> mResults = new HashMap<>(); |
| |
| ClientChannel(String stopKey) { |
| mStopKey = stopKey; |
| } |
| } |
| |
| private static Map<String, ClientChannel> mChannels = new HashMap<>(); |
| |
| @Override |
| public IBinder onBind(Intent intent) { |
| return null; |
| } |
| |
| @Override |
| public int onStartCommand(Intent intent, int flags, int startId) { |
| record(intent.getStringExtra(TestLogClient.EXTRA_LOG_TAG), |
| intent.getStringExtra(TestLogClient.EXTRA_KEY), |
| intent.getStringExtra(TestLogClient.EXTRA_VALUE)); |
| return START_NOT_STICKY; |
| } |
| |
| /** |
| * Prepare to receive results from a client with a specified tag. |
| * |
| * @param logtag Unique tag for the client. |
| * @param stopKey The key that signals that the client has completed all required actions. |
| */ |
| public static void registerClient(String logtag, String stopKey) { |
| synchronized (mLock) { |
| if (mChannels.containsKey(logtag)) { |
| throw new IllegalArgumentException(logtag); |
| } |
| mChannels.put(logtag, new ClientChannel(stopKey)); |
| } |
| } |
| |
| /** |
| * Wait for the client to complete all required actions and return the results. |
| * |
| * @param logtag Unique tag for the client. |
| * @param timeoutMs Latch timeout in ms. |
| * @return The map of results from the client |
| */ |
| public static Map<String, String> getResultsForClient(String logtag, int timeoutMs) { |
| Map<String, String> result = new HashMap<>(); |
| CountDownLatch latch; |
| synchronized (mLock) { |
| if (!mChannels.containsKey(logtag)) { |
| return result; |
| } |
| latch = mChannels.get(logtag).mLatch; |
| } |
| try { |
| latch.await(timeoutMs, TimeUnit.MILLISECONDS); |
| } catch (InterruptedException ignore) { |
| } |
| synchronized (mLock) { |
| for (Map.Entry<String, String> e : mChannels.get(logtag).mResults.entrySet()) { |
| result.put(e.getKey(), e.getValue()); |
| } |
| } |
| return result; |
| } |
| |
| private static void record(String logtag, String key, String value) { |
| synchronized (mLock) { |
| if (!mChannels.containsKey(logtag)) { |
| Log.e(TAG, "Unexpected logtag: " + logtag); |
| return; |
| } |
| ClientChannel channel = mChannels.get(logtag); |
| channel.mResults.put(key, value); |
| if (key.equals(channel.mStopKey)) { |
| channel.mLatch.countDown(); |
| } |
| } |
| } |
| } |