Alarme android com data de exibição lida por JSON de DB

Boa noite.

Estou tentando fazer meu APP android mostrar apenas uma notificação na data pré cadastrada em um banco de dados que é lida via JSON.

segue como está agora:

Splash.java
boolean alarmeAtivo = (PendingIntent.getBroadcast(this, 0, new Intent(“alarme”),
PendingIntent.FLAG_NO_CREATE) == null);

if(alarmeAtivo){
            Log.i("Script", "Novo alarme");

            Intent intent = new Intent("alarme");
            PendingIntent p = PendingIntent.getBroadcast(this, 0, intent, 0);

            Calendar c = Calendar.getInstance();
            c.setTimeInMillis(System.currentTimeMillis());
            c.add(Calendar.SECOND, 5);

            AlarmManager alarme = (AlarmManager) getSystemService(ALARM_SERVICE);

            alarme.setRepeating(AlarmManager.RTC_WAKEUP, c.getTimeInMillis(), 24 * 60 * 60 * 1000, p); //24 * 60 * 60 * 1000 - 1 dia

        } else{
            Log.i("Script", "Alarme já ativo");
        }

e aqui como resgato a data e a descrição do DB.
BroadCastReceiver.java

public class BroadCastReceiver extends BroadcastReceiver {

private SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-MM-dd”);

private String data = “2000-01-01”;

private String descricao = “”;

private URL url;

private Context c;

@Override
public void onReceive(Context context, Intent intent) {

    this.c = context;
    BackgroundTask t = new BackgroundTask();
    t.execute();

}


public void gerarNotificacao(Context context, Intent intent, CharSequence ticker, CharSequence titulo, CharSequence descricao){
    NotificationManager nm = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
    PendingIntent p = PendingIntent.getActivity(context, 0, intent, 0);

    NotificationCompat.Builder builder = new NotificationCompat.Builder(context);
    builder.setTicker(ticker);
    builder.setContentTitle(titulo);
    builder.setContentText(descricao);
    builder.setSmallIcon(R.drawable.ic_launcher);
    builder.setLargeIcon(BitmapFactory.decodeResource(context.getResources(), R.drawable.ic_launcher));
    builder.setContentIntent(p);

    Notification n = builder.build();
    n.vibrate = new long[]{150, 300, 150, 600};
    n.flags = Notification.FLAG_AUTO_CANCEL;
    nm.notify(R.drawable.ic_launcher, n);

    try{
        Uri som = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
        Ringtone toque = RingtoneManager.getRingtone(context, som);
        toque.play();
    }
    catch(Exception e){}
}

public class BackgroundTask extends AsyncTask<Void, Void, Mensagens> {


    @Override
    protected Mensagens doInBackground(Void... voids) {
        Mensagens m = new Mensagens();
        try {
            url = new URL("http://localhost:8080/sicom/json_alarme");
            String JSON_STRING;
            HttpURLConnection httpURLConnection = (HttpURLConnection) url.openConnection();
            InputStream inputStream = httpURLConnection.getInputStream();
            BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(inputStream));



            StringBuilder stringBuilder = new StringBuilder();
            while ((JSON_STRING = bufferedReader.readLine()) != null){
                stringBuilder.append(JSON_STRING + "\n");
            }

            JSONArray jsonArray = new JSONArray(stringBuilder.toString());
            for (int i = 0; i < jsonArray.length(); i++){
                JSONObject jsonObject = jsonArray.getJSONObject(i);

                m.setId_mensagem(jsonObject.getInt("id_alarme"));
                m.setData(jsonObject.getString("dt_alarme"));
                m.setDescricao(jsonObject.getString("descricao"));

            }

            bufferedReader.close();
            inputStream.close();
            httpURLConnection.disconnect();

        } catch (IOException e) {
            e.printStackTrace();
        } catch (JSONException e) {
            e.printStackTrace();
        }

        return m;

    }

    @Override
    protected void onPostExecute(Mensagens m) {
        if(!m.equals(null)){

            System.out.println(sdf.format(new Date()));
            System.out.println(m.getData());

            if (sdf.format(new Date()).equalsIgnoreCase(m.getData())) {
            //if (sdf.format(new Date()).equalsIgnoreCase(sdf.format(new Date()))) {
                    Log.i("Script", "-> Alarme");
                    gerarNotificacao(c, new Intent(c, Splash.class), "SICOM",
                            "Contracheque PM Santiago!", m.getDescricao());
                } else {
                    Log.i("Script", "-> Nada a mostrar.");
                }
            }

        }
    }

}

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