content: /*******************************************************************************
   * Copyright (c) 1999, 2016 IBM Corp.
   *
   * All rights reserved. This program and the accompanying materials
   * are made available under the terms of the Eclipse Public License v1.0
   * and Eclipse Distribution License v1.0 which accompany this distribution. 
   *
   * The Eclipse Public License is available at 
   *    http://www.eclipse.org/legal/epl-v10.html
   * and the Eclipse Distribution License is available at 
   *   http://www.eclipse.org/org/documents/edl-v10.php.
   */
  package org.eclipse.paho.android.service;
  
  /**
   * Various strings used to identify operations or data in the Android MQTT
   * service, mainly used in Intents passed between Activities and the Service.
   */
  interface MqttServiceConstants {
  
  	/*
  	 * Version information
  	 */
  	
  	String VERSION = "v0";
  	
    /*
     * Attributes of messages <p> Used for the column names in the database
     */
    String DUPLICATE = "duplicate";
    String RETAINED = "retained";
    String QOS = "qos";
    String PAYLOAD = "payload";
    String DESTINATION_NAME = "destinationName";
    String CLIENT_HANDLE = "clientHandle";
    String MESSAGE_ID = "messageId";
  
    /* Tags for actions passed between the Activity and the Service */
    String SEND_ACTION = "send";
    String UNSUBSCRIBE_ACTION = "unsubscribe";
    String SUBSCRIBE_ACTION = "subscribe";
    String DISCONNECT_ACTION = "disconnect";
    String CONNECT_ACTION = "connect";
    String CONNECT_EXTENDED_ACTION = "connectExtended";
    String MESSAGE_ARRIVED_ACTION = "messageArrived";
    String MESSAGE_DELIVERED_ACTION = "messageDelivered";
    String ON_CONNECTION_LOST_ACTION = "onConnectionLost";
    String TRACE_ACTION = "trace";
  
    /* Identifies an Intent which calls back to the Activity */
    String CALLBACK_TO_ACTIVITY = MqttService.TAG
                                               + ".callbackToActivity"+"."+VERSION;
  
    /* Identifiers for extra data on Intents broadcast to the Activity */
    String CALLBACK_ACTION = MqttService.TAG + ".callbackAction";
    String CALLBACK_STATUS = MqttService.TAG + ".callbackStatus";
    String CALLBACK_CLIENT_HANDLE = MqttService.TAG + "."
                                                 + CLIENT_HANDLE;
    String CALLBACK_ERROR_MESSAGE = MqttService.TAG
                                                 + ".errorMessage";
    String CALLBACK_EXCEPTION_STACK = MqttService.TAG
                                                   + ".exceptionStack";
    String CALLBACK_INVOCATION_CONTEXT = MqttService.TAG + "."
                                                      + "invocationContext";
    String CALLBACK_ACTIVITY_TOKEN = MqttService.TAG + "."
                                                  + "activityToken";
    String CALLBACK_DESTINATION_NAME = MqttService.TAG + '.'
                                                    + DESTINATION_NAME;
    String CALLBACK_MESSAGE_ID = MqttService.TAG + '.'
                                              + MESSAGE_ID;
    String CALLBACK_RECONNECT = MqttService.TAG + ".reconnect";
    String CALLBACK_SERVER_URI = MqttService.TAG + ".serverURI";
    String CALLBACK_MESSAGE_PARCEL = MqttService.TAG + ".PARCEL";
    String CALLBACK_TRACE_SEVERITY = MqttService.TAG
                                                  + ".traceSeverity";
    String CALLBACK_TRACE_TAG = MqttService.TAG + ".traceTag";
    String CALLBACK_TRACE_ID = MqttService.TAG + ".traceId";
    String CALLBACK_ERROR_NUMBER = MqttService.TAG
                                                + ".ERROR_NUMBER";
  
    String CALLBACK_EXCEPTION = MqttService.TAG + ".exception";
    
    //Intent prefix for Ping sender.
    String PING_SENDER = MqttService.TAG + ".pingSender.";
    
    //Constant for wakelock
    String PING_WAKELOCK = MqttService.TAG + ".client.";
    String WAKELOCK_NETWORK_INTENT = MqttService.TAG + "";
  
    //Trace severity levels  
    String TRACE_ERROR = "error";
    String TRACE_DEBUG = "debug";
    String TRACE_EXCEPTION = "exception";
    
    
    //exception code for non MqttExceptions
    int NON_MQTT_EXCEPTION = -1;
  
  }