Initial code check in continued

src/controller/channel/ChannelManager.java

@@ -0,0 +1,127 @@
+/*******************************************************************************
+ *     SDR Trunk 
+ *     Copyright (C) 2014 Dennis Sheirer
+ * 
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ * 
+ *     This program 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 General Public License for more details.
+ * 
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>
+ ******************************************************************************/
+package controller.channel;
+
+import java.util.ArrayList;
+
+import message.Message;
+import sample.Listener;
+import controller.ResourceManager;
+import controller.channel.Channel.ChannelEvent;
+
+public class ChannelManager implements ChannelListener
+{
+	private ArrayList<Channel> mChannels = new ArrayList<Channel>();
+	
+	private ArrayList<ChannelListener> mChannelListeners =
+									new ArrayList<ChannelListener>();
+	private ArrayList<Listener<Message>> mMessageListeners =
+									new ArrayList<Listener<Message>>();
+
+	public ChannelManager( ResourceManager resourceManager )
+	{
+		mChannelListeners.add( this );
+	}
+
+	/**
+	 * Notification that a channel has been added or deleted, so that we can
+	 * keep track of all channels and manage system-wide listeners for each 
+	 * of those channels
+	 */
+	@SuppressWarnings( "incomplete-switch" )
+    @Override
+    public void occurred( Channel channel, ChannelEvent component )
+    {
+		switch( component )
+		{
+			case CHANNEL_ADDED:
+				if( !mChannels.contains( channel ) )
+				{
+					mChannels.add( channel );
+				}
+				break;
+			case CHANNEL_DELETED:
+				mChannels.remove( channel );
+				break;
+		}
+    }
+	
+	/**
+	 * Adds a channel listener that will be added to all channels to receive
+	 * any channel change events.  This listener will automatically receive
+	 * a channel add event as it is added to each of the existing channels.
+	 */
+	public void addListener( ChannelListener listener )
+	{
+	    mChannelListeners.add( listener );
+	    
+	    for( Channel channel: mChannels )
+	    {
+	    	channel.addListener( listener );
+	    }
+	}
+
+	/**
+	 * Removes a channel listener from being automatically added to all channels
+	 * to receive channel change events.
+	 */
+	public void removeListener( ChannelListener listener )
+	{
+	    mChannelListeners.remove( listener );
+	    
+	    for( Channel channel: mChannels )
+	    {
+	    	channel.removeListener( listener );
+	    }
+	}
+
+	/**
+	 * Returns the list of channel change listeners that will be automatically
+	 * added to all channels to receive channel change events
+	 */
+	public ArrayList<ChannelListener> getChannelListeners()
+	{
+	    return mChannelListeners;
+	}
+
+	/**
+	 * Returns the list of channel change listeners that will be automatically
+	 * added to all channels to receive channel change events
+	 */
+	public ArrayList<Listener<Message>> getMessageListeners()
+	{
+	    return mMessageListeners;
+	}
+
+	/**
+	 * Adds a message listener that will be added to all channels to receive
+	 * any messages.
+	 */
+	public void addListener( Listener<Message> listener )
+	{
+	    mMessageListeners.add( listener );
+	}
+
+	/**
+	 * Removes a message listener.
+	 */
+	public void removeListener( Listener<Message> listener )
+	{
+	    mMessageListeners.remove( listener );
+	}
+}