content: /*
   * Copyright (C) 2018 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.server.appprediction;
  
  import android.annotation.NonNull;
  import android.os.ShellCommand;
  
  import java.io.PrintWriter;
  
  /**
   * The shell command implementation for the AppPredictionManagerService.
   */
  public class AppPredictionManagerServiceShellCommand extends ShellCommand {
  
      private static final String TAG =
              AppPredictionManagerServiceShellCommand.class.getSimpleName();
  
      private final AppPredictionManagerService mService;
  
      public AppPredictionManagerServiceShellCommand(@NonNull AppPredictionManagerService service) {
          mService = service;
      }
  
      @Override
      public int onCommand(String cmd) {
          if (cmd == null) {
              return handleDefaultCommands(cmd);
          }
          final PrintWriter pw = getOutPrintWriter();
          switch (cmd) {
              case "set": {
                  final String what = getNextArgRequired();
                  switch (what) {
                      case "temporary-service": {
                          final int userId = Integer.parseInt(getNextArgRequired());
                          String serviceName = getNextArg();
                          if (serviceName == null) {
                              mService.resetTemporaryService(userId);
                              return 0;
                          }
                          final int duration = Integer.parseInt(getNextArgRequired());
                          mService.setTemporaryService(userId, serviceName, duration);
                          pw.println("AppPredictionService temporarily set to " + serviceName
                                  + " for " + duration + "ms");
                          break;
                      }
                  }
              }
              break;
              default:
                  return handleDefaultCommands(cmd);
          }
          return 0;
      }
  
      @Override
      public void onHelp() {
          try (PrintWriter pw = getOutPrintWriter()) {
              pw.println("AppPredictionManagerService commands:");
              pw.println("  help");
              pw.println("    Prints this help text.");
              pw.println("");
              pw.println("  set temporary-service USER_ID [COMPONENT_NAME DURATION]");
              pw.println("    Temporarily (for DURATION ms) changes the service implemtation.");
              pw.println("    To reset, call with just the USER_ID argument.");
              pw.println("");
          }
      }
  }
  