/*
* 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.preferences;
import android.content.SharedPreferences;
import de.unikassel.android.sdcframework.devices.facade.SensorDevicePriorities;
/**
* Implementation of the preference for the {@link SensorDevicePriorities device
* priority}.
*
* @author Katy Hilgenberg
*
*/
public final class PriorityLevelPreference
extends SinglePreferenceImpl< SensorDevicePriorities >
{
/**
* The frequency key
*/
public static final String KEY = "priority";
/**
* The deafult value
*/
public static final SensorDevicePriorities DEFAULT =
SensorDevicePriorities.Level2;
/**
* Constructor
*/
public PriorityLevelPreference()
{
super( KEY, DEFAULT );
}
/**
* Constructor
*
* @param keySuffix
* the key suffix
*/
public PriorityLevelPreference( String keySuffix )
{
super( keySuffix, KEY, DEFAULT );
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.preferences.facade.
* SinglePreferenceWithDefault#
* getConfiguration(android.content.SharedPreferences)
*/
@Override
public final SensorDevicePriorities getConfiguration(
SharedPreferences sharedPreferences )
{
Integer priority =
Integer.parseInt( sharedPreferences.getString( getKey(),
Integer.valueOf( getDefault().ordinal() ).toString() ) );
SensorDevicePriorities result = toPriorityLevel( priority );
return ( result == null ? DEFAULT : result );
}
/**
* Does convert an ordinal level value to it's corresponding sensor device
* priority level. For invalid ordinal values null will be returned.
*
* @param ordinalLevel
* the ordinal level value
* @return the corresponding priority level or null if no level did match
*/
public static SensorDevicePriorities toPriorityLevel( Integer ordinalLevel )
{
SensorDevicePriorities result = null;
// try to find enumeration match for the priority
for ( SensorDevicePriorities prio : SensorDevicePriorities.values() )
{
if ( ordinalLevel.equals( prio.ordinal() ) )
{
result = prio;
break;
}
}
return result;
}
}