Android Open Source - magdaa-library Serval Status Receiver

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License

The source code is released under:

GNU General Public License

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Java Source Code

/*
 * Copyright (C) 2012, 2013 The MaGDAA Project
 *//www .ja  v  a  2s .c  o m
 * This file is part of the MaGDAA Library Software
 *
 * MaGDAA Library Software is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This source code is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this source code; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package org.magdaaproject.utils.serval;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;

/**
 * a utility class used to receive notification about the state of the serval mesh application
 */
public class ServalStatusReceiver extends BroadcastReceiver {
  
  /**
   * identify the state that the Serval Mesh is on
   */
  public static final int SERVAL_STATUS_ON = 0;
  
  /**
   * identify the state where the Serval Mesh is off
   */
  public static final int SERVAL_STATUS_OFF = 1;
  
  /**
   * identify the state whereby the Serval Mesh status is unknown
   */
  public static final int SERVAL_STATUS_UNKOWN = -1;
  
  /**
   * identify the intent actions used to check Serval State
   */
  public static final String[] SERVAL_STATUS_ACTIONS = {"org.servalproject.ACTION_STATE_CHECK_UPDATE","org.servalproject.ACTION_STATE"};
  
  /**
   * intent action used to poll for the status of the serval mesh
   */
  public static final String SERVAL_STATE_CHECK_ACTION = "org.servalproject.ACTION_STATE_CHECK";
  
  /*
   * private class level variables
   */
  /*
   * an enum representing the different states of the Serval Mesh software
   * derived from the org.serval.project.ServalBatphoneApplication class
   */
  private static enum BatphoneState{
    Installing,
    Upgrading,
    Off,
    Starting,
    On,
    Stopping,
    Broken
  }

  private int status = SERVAL_STATUS_UNKOWN;

  /*
   * (non-Javadoc)
   * @see android.content.BroadcastReceiver#onReceive(android.content.Context, android.content.Intent)
   */
  @Override
  public void onReceive(Context context, Intent intent) {
    
    // check the intent action
    if(intent.getAction().equals(SERVAL_STATUS_ACTIONS[0]) || intent.getAction().equals(SERVAL_STATUS_ACTIONS[1])) {
      
      // get the state from the intent
      int mIndicator = intent.getIntExtra("state", -1);
      
      // determine which state is indicated
      if(mIndicator != -1) {
        BatphoneState mState = BatphoneState.values()[mIndicator];
        
        switch(mState) {
        case On:
          status = SERVAL_STATUS_ON;
          break;
        case Off:
          status = SERVAL_STATUS_OFF;
          break;
        default:
          status = SERVAL_STATUS_UNKOWN;
        }
      } else {
        status = SERVAL_STATUS_UNKOWN;
      }
    }
  }
  
  /**
   * get the current status of the Serval Mesh software
   * @return the currently known state of the serval mesh software
   */
  public int getStatus() {
    return status;
  }

}

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