Initial code check in continued

src/decode/mpt1327/MPT1327ActivitySummary.java

@@ -0,0 +1,171 @@
+/*******************************************************************************
+ *     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.mpt1327;
+
+import java.util.Iterator;
+import java.util.TreeSet;
+
+import message.Message;
+import sample.Listener;
+import alias.Alias;
+import alias.AliasList;
+import controller.activity.ActivitySummaryProvider;
+
+public class MPT1327ActivitySummary implements ActivitySummaryProvider, 
+											   Listener<Message>
+{
+	private static final int sINT_NULL_VALUE = -1;
+
+	private AliasList mAliasList;
+	private TreeSet<String> mIdents = new TreeSet<String>();
+	private int mSite;
+
+	/**
+	 * Compiles a summary of active talkgroups, unique radio ids encountered
+	 * in the decoded messages.  Talkgroups have to be heard a minimum of twice
+	 * to be considered valid ... in order to weed out the invalid ones.
+	 * 
+	 * Returns a textual summary of the activity
+	 */
+	public MPT1327ActivitySummary( AliasList list )
+	{
+		mAliasList = list;
+	}
+	
+	/**
+	 * Cleanup method
+	 */
+	public void dispose()
+	{
+		mIdents.clear();
+	}
+
+	@Override
+    public void receive( Message message )
+    {
+		if( message instanceof MPT1327Message )
+		{
+			MPT1327Message mpt = ((MPT1327Message)message);
+			
+			if( mpt.isValid() )
+			{
+				switch( mpt.getMessageType() )
+				{
+					case ACK:
+						mIdents.add( mpt.getFromID() );
+						break;
+					case ACKI:
+						mIdents.add( mpt.getFromID() );
+						mIdents.add( mpt.getToID() );
+						break;
+					case ALH:
+						mSite = mpt.getSiteID();
+						break;
+					case GTC:
+						if( mpt.hasFromID() )
+						{
+							mIdents.add( mpt.getFromID() );
+						}
+						if( mpt.hasToID() )
+						{
+							mIdents.add( mpt.getToID() );
+						}
+						break;
+				}
+			}
+		}
+    }
+
+	@Override
+    public String getSummary()
+    {
+		StringBuilder sb = new StringBuilder();
+
+		sb.append( "Activity Summary\n" );
+		sb.append( "Decoder:\tMPT-1327\n" );
+		sb.append( "Site:\t" );
+		
+		if( mSite != 0 )
+		{
+			sb.append( mSite );
+			
+			if( mAliasList != null )
+			{
+				Alias siteAlias = mAliasList.getSiteID( mSite );
+				
+				if( siteAlias != null )
+				{
+					sb.append( " " );
+					sb.append( siteAlias.getName() );
+					sb.append( "\n" );
+				}
+			}
+			
+			sb.append( "Network:\t" );
+			
+			if( ( mSite & 0x4000 ) == 0x4000 )
+			{
+				sb.append( "National #" );
+				int net = (int)Long.rotateRight( ( mSite & 0x3000 ) , 12 );
+				sb.append( net );
+				sb.append( "\n" );
+			}
+			else
+			{
+				sb.append( "Regional\n" );
+			}
+			
+		}
+		else
+		{
+			sb.append( "Unknown\n" );
+		}
+		
+		sb.append( "\n" );
+		
+		sb.append( "Talkgroups\n" );
+		if( mIdents.isEmpty() )
+		{
+			sb.append( "  None\n" );
+		}
+		else
+		{
+			Iterator<String> it = mIdents.iterator();
+			
+			while( it.hasNext() )
+			{
+				String ident = it.next();
+				
+				sb.append( "  " );
+				sb.append( ident );
+				sb.append( " " );
+				
+				Alias alias = mAliasList.getMPT1327Alias( ident );
+				
+				if( alias != null )
+				{
+					sb.append( alias.getName() );
+				}
+				
+				sb.append( "\n" );
+			}
+		}
+		
+	    return sb.toString();
+    }
+}