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.HandlerThread;
  import android.os.ParcelFileDescriptor;
  import android.util.Log;
  import androidx.test.services.speakeasy.SpeakEasyProtocol.PublishResult;
  import com.google.common.util.concurrent.ThreadFactoryBuilder;
  import java.io.IOException;
  import java.io.OutputStream;
  import java.util.List;
  import java.util.Map;
  import java.util.concurrent.ExecutorService;
  import java.util.concurrent.Executors;
  
  /** Server to create ShellExecutors */
  final class ShellCommandExecutorServer {
  
    private static final String TAG = "ShellCmdExec";
    private static final ExecutorService executor =
        Executors.newCachedThreadPool(new ThreadFactoryBuilder().setNameFormat(TAG + " #%d").build());
  
    private final ShellCommandExecutor shellCommandExecutor = new ShellCommandExecutor(executor);
    private final HandlerThread handlerThread = new HandlerThread("SpeakEasyPublish");
  
    ShellCommandExecutorServer() {}
  
    String start() throws InterruptedException {
      if (!handlerThread.isAlive()) {
        handlerThread.setDaemon(true);
        handlerThread.start();
      }
  
      Command.Stub commandStub =
          new Command.Stub() {
            @Override
            public void execute(
                String command,
                List<String> parameters,
                @SuppressWarnings("rawtypes")
                    Map shellEnv, // shellEnv comes from aidl and must a Map without type.
                boolean executeThroughShell,
                ParcelFileDescriptor pdf) {
              executeWithTimeout(command, parameters, shellEnv, executeThroughShell, pdf, 0L);
            }
  
            @Override
            public void executeWithTimeout(
                String command,
                List<String> parameters,
                @SuppressWarnings("rawtypes")
                    Map shellEnv, // shellEnv comes from aidl and must a Map without type.
                boolean executeThroughShell,
                ParcelFileDescriptor pdf,
                long timeoutMs) {
  
              OutputStream outputReceiver = new ParcelFileDescriptor.AutoCloseOutputStream(pdf);
  
              try {
                @SuppressWarnings("unchecked")
                ShellCommand commandObject =
                    new ShellCommand(
                        command,
                        parameters,
                        (Map<String, String>) shellEnv,
                        executeThroughShell,
                        timeoutMs);
                shellCommandExecutor.execute(commandObject, outputReceiver);
              } catch (IOException e) {
                Log.w(TAG, "Running command threw an exception", e);
                try {
                  outputReceiver.close();
                  pdf.close();
                } catch (IOException e2) {
                  Log.w(TAG, "Unable to close the output", e2);
                }
              }
            }
          };
  
      PublishResult result =
          BlockingPublish.getResult(handlerThread.getLooper(), commandStub.asBinder());
      if (result.published) {
        String key = result.key;
        return key;
      } else {
        throw new RuntimeException(result.error);
      }
    }
  }
  