content: /*
   * Copyright (C) 2015 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.commands.svc;
  
  import android.content.Context;
  import android.nfc.INfcAdapter;
  import android.os.RemoteException;
  import android.os.ServiceManager;
  
  public class NfcCommand extends Svc.Command {
  
      public NfcCommand() {
          super("nfc");
      }
  
      @Override
      public String shortHelp() {
          return "Control NFC functions";
      }
  
      @Override
      public String longHelp() {
          return shortHelp() + "\n"
                  + "\n"
                  + "usage: svc nfc [enable|disable]\n"
                  + "         Turn NFC on or off.\n\n";
      }
  
      @Override
      public void run(String[] args) {
          INfcAdapter adapter = INfcAdapter.Stub.asInterface(
                  ServiceManager.getService(Context.NFC_SERVICE));
  
          if (adapter == null) {
              System.err.println("Got a null NfcAdapter, is the system running?");
              return;
          }
  
          try {
              if (args.length == 2 && "enable".equals(args[1])) {
                  adapter.enable();
                  return;
              } else if (args.length == 2 && "disable".equals(args[1])) {
                  adapter.disable(true);
                  return;
              }
          } catch (RemoteException e) {
              System.err.println("NFC operation failed: " + e);
              return;
          }
  
          System.err.println(longHelp());
      }
  
  }
  