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 com.android.server.power;
  
  import android.content.Intent;
  import android.os.IPowerManager;
  import android.os.RemoteException;
  import android.os.ShellCommand;
  
  import java.io.PrintWriter;
  
  class PowerManagerShellCommand extends ShellCommand {
      private static final int LOW_POWER_MODE_ON = 1;
  
      final IPowerManager mInterface;
  
      PowerManagerShellCommand(IPowerManager service) {
          mInterface = service;
      }
  
      @Override
      public int onCommand(String cmd) {
          if (cmd == null) {
              return handleDefaultCommands(cmd);
          }
  
          final PrintWriter pw = getOutPrintWriter();
          try {
              switch(cmd) {
                  case "set-adaptive-power-saver-enabled":
                      return runSetAdaptiveEnabled();
                  case "set-mode":
                      return runSetMode();
                  default:
                      return handleDefaultCommands(cmd);
              }
          } catch (RemoteException e) {
              pw.println("Remote exception: " + e);
          }
          return -1;
      }
  
      private int runSetAdaptiveEnabled() throws RemoteException {
          mInterface.setAdaptivePowerSaveEnabled(Boolean.parseBoolean(getNextArgRequired()));
          return 0;
      }
  
      private int runSetMode() throws RemoteException {
          final PrintWriter pw = getOutPrintWriter();
          int mode = -1;
          try {
              mode = Integer.parseInt(getNextArgRequired());
          } catch (RuntimeException ex) {
              pw.println("Error: " + ex.toString());
              return -1;
          }
          mInterface.setPowerSaveModeEnabled(mode == LOW_POWER_MODE_ON);
          return 0;
      }
  
      @Override
      public void onHelp() {
          final PrintWriter pw = getOutPrintWriter();
          pw.println("Power manager (power) commands:");
          pw.println("  help");
          pw.println("    Print this help text.");
          pw.println("");
          pw.println("  set-adaptive-power-saver-enabled [true|false]");
          pw.println("    enables or disables adaptive power saver.");
          pw.println("  set-mode MODE");
          pw.println("    sets the power mode of the device to MODE.");
          pw.println("    1 turns low power mode on and 0 turns low power mode off.");
          pw.println();
          Intent.printIntentArgsHelp(pw , "");
      }
  }
  