content: /*
   * 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 androidx.test.services.shellexecutor;
  
  import android.os.Handler;
  import android.os.IBinder;
  import android.os.Looper;
  import android.util.Log;
  import androidx.test.services.speakeasy.SpeakEasyProtocol.PublishResult;
  import androidx.test.services.speakeasy.client.PublishResultReceiver;
  import androidx.test.services.speakeasy.client.ToolConnection;
  import java.util.concurrent.CountDownLatch;
  import java.util.concurrent.TimeUnit;
  
  /**
   * Synchronously publishes a {@link IBinder} and returns a {@link PublishResult} from SpeakEasy.
   *
   * @throws InterruptedException if find not successful in 5 seconds.
   */
  final class BlockingPublish extends PublishResultReceiver {
  
    private static final String TAG = "PublishResultReceiver";
    private static final int WAIT_TIME = 30;
    private static final int WAIT_INTERVAL = 5;
  
    private final CountDownLatch latch;
    private volatile PublishResult publishResult;
  
    private BlockingPublish(Handler h) {
      super(h);
      latch = new CountDownLatch(1);
    }
  
    @Override
    protected void handlePublishResult(PublishResult findResult) {
      this.publishResult = findResult;
      latch.countDown();
    }
  
    private PublishResult waitOnResult() throws InterruptedException {
      int awaitTime = 0;
      while (true) {
        if (latch.await(WAIT_INTERVAL, TimeUnit.SECONDS)) {
          Log.d(TAG, "Publish successful");
          return publishResult;
        } else {
          awaitTime += WAIT_INTERVAL;
          if (awaitTime < WAIT_TIME) {
            Log.i(TAG, "Waiting " + awaitTime + " for SpeakEasy publish");
          } else {
            throw new InterruptedException(
                "Timed out after " + WAIT_TIME + " seconds while waiting for SpeakEasy publish");
          }
        }
      }
    }
  
    public static PublishResult getResult(Looper looper, IBinder binder) throws InterruptedException {
      BlockingPublish receiver = new BlockingPublish(new Handler(looper));
      ToolConnection.makeConnection().publish(binder, receiver);
      return receiver.waitOnResult();
    }
  };
  