/*
* Copyright (C) 2012, Katy Hilgenberg.
* Special acknowledgments to: Knowledge & Data Engineering Group, University of Kassel (http://www.kde.cs.uni-kassel.de).
* Contact: sdcf@cs.uni-kassel.de
*
* This file is part of the SDCFramework (Sensor Data Collection Framework) project.
*
* The SDCFramework is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The SDCFramework 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SDCFramework. If not, see <http://www.gnu.org/licenses/>.
*/
package de.unikassel.android.sdcframework.transmission;
import de.unikassel.android.sdcframework.preferences.facade.TransmissionProtocolConfiguration;
import de.unikassel.android.sdcframework.transmission.facade.ConnectionStrategy;
import de.unikassel.android.sdcframework.transmission.facade.ConnectivityWrapper;
import de.unikassel.android.sdcframework.transmission.facade.ConnectionStrategyDescription;
/**
* A Builder for the connection strategy chains. <br/>
* <br/>
* This builder does create a chain of connection strategies according to the
* given @link {@link ConnectionStrategyDescription description} in the
* transmission service configuration.
*
* @see UploadManager
* @author Katy Hilgenberg
*
*/
public class ConnectionStrategyBuilder
{
/**
* Does build a database full strategy chain as configured by the given
* definition
*
* @param config
* the current transmission service configuration
* @param controlActivityClass
* the control activity class or null
* @return the chain of database full strategies represented by the definition
*/
public static ConnectionStrategy
buildStrategy(
TransmissionProtocolConfiguration config,
Class< ? > controlActivityClass )
{
// default is available only strategy
ConnectivityWrapper connectivityWrapper =
ConnectivityWrapperImpl.getInstance();
ConnectionStrategy strategy =
new UseAvailableConnectionStrategy( connectivityWrapper,
controlActivityClass );
switch ( config.getTransmissionStrategy() )
{
case wlan:
{
strategy =
new WLANConnectionStrategy( connectivityWrapper,
controlActivityClass );
break;
}
case mobile_connection:
{
strategy =
new MobileConnectionStrategy( connectivityWrapper,
controlActivityClass );
break;
}
case wlan_else_mobile:
{
strategy =
new WLANConnectionStrategy( connectivityWrapper,
controlActivityClass );
strategy.setSuccessor( new MobileConnectionStrategy(
connectivityWrapper, controlActivityClass ) );
break;
}
}
return strategy;
}
}