Applied-Energistics-2-tiler.../src/main/java/appeng/me/cache/NetworkMonitor.java

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/*
* This file is part of Applied Energistics 2.
* Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
*
* Applied Energistics 2 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.
*
* Applied Energistics 2 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 Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
*/
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package appeng.me.cache;
import java.util.Collection;
import java.util.Deque;
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import java.util.Iterator;
import java.util.LinkedList;
import java.util.Map.Entry;
import appeng.api.networking.events.MENetworkStorageEvent;
import appeng.api.networking.security.BaseActionSource;
import appeng.api.storage.IMEInventoryHandler;
import appeng.api.storage.IMEMonitorHandlerReceiver;
import appeng.api.storage.MEMonitorHandler;
import appeng.api.storage.StorageChannel;
import appeng.api.storage.data.IAEStack;
import appeng.api.storage.data.IItemList;
import appeng.me.storage.ItemWatcher;
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public class NetworkMonitor<T extends IAEStack<T>> extends MEMonitorHandler<T>
{
private static final Deque<NetworkMonitor<?>> DEPTH = new LinkedList<NetworkMonitor<?>>();
private final GridStorageCache myGridCache;
private final StorageChannel myChannel;
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boolean sendEvent = false;
public NetworkMonitor( GridStorageCache cache, StorageChannel chan )
{
super( null, chan );
this.myGridCache = cache;
this.myChannel = chan;
}
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public void forceUpdate()
{
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this.hasChanged = true;
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Iterator<Entry<IMEMonitorHandlerReceiver<T>, Object>> i = this.getListeners();
while( i.hasNext() )
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{
Entry<IMEMonitorHandlerReceiver<T>, Object> o = i.next();
IMEMonitorHandlerReceiver<T> receiver = o.getKey();
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if( receiver.isValid( o.getValue() ) )
receiver.onListUpdate();
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else
i.remove();
}
}
public void onTick()
{
if( this.sendEvent )
{
this.sendEvent = false;
this.myGridCache.myGrid.postEvent( new MENetworkStorageEvent( this, this.myChannel ) );
}
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}
@Override
protected IMEInventoryHandler getHandler()
{
switch( this.myChannel )
{
case ITEMS:
return this.myGridCache.getItemInventoryHandler();
case FLUIDS:
return this.myGridCache.getFluidInventoryHandler();
default:
}
return null;
}
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@Override
protected void postChangesToListeners( Iterable<T> changes, BaseActionSource src )
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{
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this.postChange( true, changes, src );
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}
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protected void postChange( boolean Add, Iterable<T> changes, BaseActionSource src )
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{
if( DEPTH.contains( this ) )
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return;
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DEPTH.push( this );
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this.sendEvent = true;
this.notifyListenersOfChange( changes, src );
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IItemList<T> myStorageList = this.getStorageList();
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for( T changedItem : changes )
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{
T difference = changedItem;
if( !Add && changedItem != null )
( difference = changedItem.copy() ).setStackSize( -changedItem.getStackSize() );
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if( this.myGridCache.interestManager.containsKey( changedItem ) )
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{
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Collection<ItemWatcher> list = this.myGridCache.interestManager.get( changedItem );
if( !list.isEmpty() )
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{
IAEStack fullStack = myStorageList.findPrecise( changedItem );
if( fullStack == null )
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{
fullStack = changedItem.copy();
fullStack.setStackSize( 0 );
}
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this.myGridCache.interestManager.enableTransactions();
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for( ItemWatcher iw : list )
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iw.getHost().onStackChange( myStorageList, fullStack, difference, src, this.getChannel() );
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this.myGridCache.interestManager.disableTransactions();
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}
}
}
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final NetworkMonitor<?> last = DEPTH.pop();
if( last != this )
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throw new RuntimeException( "Invalid Access to Networked Storage API detected." );
}
}