Initial code check in continued

src/decode/passport/PassportMessageProcessor.java

@@ -0,0 +1,109 @@
+/*******************************************************************************
+ *     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 decode.passport;
+
+import java.util.HashMap;
+
+import message.Message;
+import message.MessageType;
+import sample.Broadcaster;
+import sample.Listener;
+import alias.AliasList;
+import bits.BitSetBuffer;
+
+public class PassportMessageProcessor implements Listener<BitSetBuffer>
+{
+	private Broadcaster<Message> mBroadcaster = new Broadcaster<Message>();
+	private IdleMessageFinder mIdleFinder = new IdleMessageFinder();
+	private AliasList mAliasList;
+	private PassportMessage mIdleMessage;
+	
+	public PassportMessageProcessor( AliasList list )
+	{
+		mAliasList = list;
+	}
+	
+	@Override
+    public void receive( BitSetBuffer buffer )
+    {
+		PassportMessage message;
+		
+		if( mIdleMessage != null )
+		{
+			message = new PassportMessage( buffer, mIdleMessage, mAliasList );
+		}
+		else
+		{
+			message = new PassportMessage( buffer, mAliasList );
+			mIdleFinder.receive( message );
+		}
+
+		mBroadcaster.receive( message );
+    }
+	
+    public void addMessageListener( Listener<Message> listener )
+    {
+		mBroadcaster.addListener( listener );
+    }
+
+    public void removeMessageListener( Listener<Message> listener )
+    {
+		mBroadcaster.removeListener( listener );
+    }
+	
+	public class IdleMessageFinder
+	{
+		public HashMap<String,Integer> mMessageCounts =	
+					new HashMap<String,Integer>();
+		
+		public boolean mIdleMessageFound = false;
+		
+		public IdleMessageFinder()
+		{
+		}
+		
+		public void receive( PassportMessage message )
+		{
+			if( !mIdleMessageFound &&
+				message.isValid() && 
+				message.getMessageType() == MessageType.SY_IDLE )
+			{
+				if( mMessageCounts.containsKey( message.getBinaryMessage() ) )
+				{
+					int count = mMessageCounts.get( message.getBinaryMessage() );
+					
+					if( count >= 3 )
+					{
+						mIdleMessageFound = true;
+						mIdleMessage = message;
+						mMessageCounts = null;
+					}
+					else
+					{
+						count++;
+						mMessageCounts.put( message.getBinaryMessage(), count );
+					}
+				}
+				else
+				{
+					mMessageCounts.put( message.getBinaryMessage(), 1 );
+				}
+			}
+		}
+	}
+}