fr.inria.ucn.listeners.MyPhoneStateListener.java Source code

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Here is the source code for fr.inria.ucn.listeners.MyPhoneStateListener.java

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/*******************************************************************************
 * Copyright (C) 2014 MUSE team Inria Paris - Rocquencourt
 * 
 * This file is part of UCNDataCollector.
 * 
 * UCNDataCollector is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * UCNDataCollector 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 Affero Public License for more details.
 * 
 * You should have received a copy of the GNU Affero Public License
 * along with UCNDataCollector.  If not, see <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package fr.inria.ucn.listeners;

import org.json.JSONException;
import org.json.JSONObject;

import fr.inria.ucn.Constants;
import fr.inria.ucn.Helpers;
import android.content.Context;
import android.telephony.CellLocation;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.telephony.cdma.CdmaCellLocation;
import android.telephony.gsm.GsmCellLocation;
import android.util.Log;

/**
 * Listen for changes in mobile cell and network connectivity.
 * @author apietila
 *
 */
public class MyPhoneStateListener extends PhoneStateListener {

    private Context c = null;

    /**
     * 
     * @param c
     */
    public void enable(Context c) {
        TelephonyManager tm = (TelephonyManager) c.getSystemService(Context.TELEPHONY_SERVICE);
        if (tm.getPhoneType() != TelephonyManager.PHONE_TYPE_NONE) {
            tm.listen(this,
                    PhoneStateListener.LISTEN_CELL_LOCATION | PhoneStateListener.LISTEN_DATA_CONNECTION_STATE);
            this.c = c;
        } // else no telephony
    }

    /**
     * 
     * @param c
     */
    public void disable(Context c) {
        TelephonyManager tm = (TelephonyManager) c.getSystemService(Context.TELEPHONY_SERVICE);
        if (tm.getPhoneType() != TelephonyManager.PHONE_TYPE_NONE) {
            tm.listen(this, PhoneStateListener.LISTEN_NONE);
            this.c = null;
        } // else no telephony
    }

    /**
     * 
     * @return
     */
    public boolean isEnabled() {
        return (this.c != null);
    }

    /* (non-Javadoc)
     * @see android.telephony.PhoneStateListener#onCellLocationChanged(android.telephony.CellLocation)
     */
    @Override
    public void onCellLocationChanged(CellLocation location) {
        if (location != null) {
            try {
                JSONObject loc = new JSONObject();
                if (location instanceof GsmCellLocation) {
                    JSONObject data = new JSONObject();
                    data.put("cid", ((GsmCellLocation) location).getCid());
                    data.put("lac", ((GsmCellLocation) location).getLac());
                    data.put("psc", ((GsmCellLocation) location).getPsc());
                    loc.put("gsm", data);
                } else if (location instanceof CdmaCellLocation) {
                    JSONObject data = new JSONObject();
                    data.put("bs_id", ((CdmaCellLocation) location).getBaseStationId());
                    data.put("bs_lat", ((CdmaCellLocation) location).getBaseStationLatitude());
                    data.put("bs_lon", ((CdmaCellLocation) location).getBaseStationLongitude());
                    data.put("net_id", ((CdmaCellLocation) location).getNetworkId());
                    data.put("sys_id", ((CdmaCellLocation) location).getSystemId());
                    loc.put("cdma", data);
                }
                Helpers.sendResultObj(this.c, "cell_location", System.currentTimeMillis(), loc);
            } catch (JSONException jex) {
                Log.w(Constants.LOGTAG, "failed to create json object", jex);
            }
        }
    }

    /* (non-Javadoc)
     * @see android.telephony.PhoneStateListener#onDataConnectionStateChanged(int, int)
     */
    @Override
    public void onDataConnectionStateChanged(int state, int networkType) {
        try {
            JSONObject data = new JSONObject();
            data.put("state", state);
            data.put("network_type", networkType);
            data.put("network_type_str", Helpers.getTelephonyNetworkType(networkType));
            Helpers.sendResultObj(this.c, "data_conn_state", System.currentTimeMillis(), data);
        } catch (JSONException jex) {
            Log.w(Constants.LOGTAG, "failed to create json object", jex);
        }
    }
}