/*
* 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.broadcast;
import de.unikassel.android.sdcframework.data.Sample;
import de.unikassel.android.sdcframework.data.SampleCollection;
import de.unikassel.android.sdcframework.util.ObservableEventSourceImpl;
import de.unikassel.android.sdcframework.util.facade.EventObserver;
import de.unikassel.android.sdcframework.util.facade.ObservableEventSource;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
/**
* The observable broadcast receiver implementation for {@linkplain Sample
* samples}. <br/>
* <br/>
*
* @see SampleBroadcastServiceImpl
* @author Katy Hilgenberg
*
*/
public class SampleListener
extends BroadcastReceiver
implements ObservableEventSource< SampleCollection >
{
/**
* The internal observable {@linkplain SampleCollection} source
*/
private final ObservableEventSourceImpl< SampleCollection > sampleSource;
/**
* Constructor
*/
public SampleListener()
{
super();
sampleSource = new ObservableEventSourceImpl< SampleCollection >();
}
/*
* (non-Javadoc)
*
* @see android.content.BroadcastReceiver#onReceive(android.content.Context,
* android.content.Intent)
*/
@Override
public final void onReceive( Context context, Intent intent )
{
if ( sampleSource.getObservers().isEmpty() )
return;
if ( Sample.ACTION.equals( intent.getAction() ) )
{
Sample parcelableExtra =
intent.getParcelableExtra( Sample.PARCELABLE_EXTRA_NAME );
SampleCollection sampleCollection = new SampleCollection();
sampleCollection.add( parcelableExtra );
notify( sampleCollection );
}
else if ( SampleCollection.ACTION.equals( intent.getAction() ) )
{
SampleCollection sampleCollection =
(SampleCollection) intent.getParcelableExtra( SampleCollection.PARCELABLE_EXTRA_NAME );
notify( sampleCollection );
}
}
/**
* Method to register this class as broadcast receiver for samples in a given
* context
*
* @param context
* the context
*/
public final void registerAsBroadCastReceiver( Context context )
{
IntentFilter filter = new IntentFilter();
filter.addAction( Sample.ACTION );
filter.addAction( SampleCollection.ACTION );
context.registerReceiver( this, filter );
}
/**
* Method to unregister this class as broadcast receiver for samples in a
* given context
*
* @param context
* the context
*/
public final void unregisterAsBroadCastReceiver( Context context )
{
context.unregisterReceiver( this );
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.util.facade.ObservableEventSource#
* removeAllObservers()
*/
@Override
public final void removeAllObservers()
{
sampleSource.removeAllObservers();
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.util.facade.ObservableEventSource#
* hasObservers()
*/
@Override
public final boolean hasObservers()
{
return sampleSource.hasObservers();
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.util.facade.ObserverRegistration#
* registerEventObserver
* (de.unikassel.android.sdcframework.util.facade.EventObserver)
*/
@Override
public final void registerEventObserver(
EventObserver< ? extends SampleCollection > observer )
{
sampleSource.registerEventObserver( observer );
}
/*
* (non-Javadoc)
*
* @see de.unikassel.android.sdcframework.util.facade.ObserverRegistration#
* unregisterEventObserver
* (de.unikassel.android.sdcframework.util.facade.EventObserver)
*/
@Override
public final void unregisterEventObserver(
EventObserver< ? extends SampleCollection > observer )
{
sampleSource.unregisterEventObserver( observer );
}
/*
* (non-Javadoc)
*
* @see
* de.unikassel.android.sdcframework.util.facade.ObservableEventSource#notify
* (de.unikassel.android.sdcframework.util.facade.ObservableEvent)
*/
@Override
public final void notify( SampleCollection data )
{
sampleSource.notify( data );
}
}