EssentialsUpdate WIP

EssentialsUpdate/src/f00f/net/irc/martyr/GenericCommandAutoService.java

@@ -0,0 +1,79 @@
+package f00f.net.irc.martyr;
+
+import java.util.Observable;
+import java.util.Observer;
+
+/**
+ * Provides a framework for an auto service that operates with
+ * InCommands.  Does enable by default.  Splits the 'update' method
+ * into two, 'updateState' and 'updateCommand'.  Also provides thread
+ * safety on all methods.
+ */
+public abstract class GenericCommandAutoService implements Observer
+{
+
+protected boolean enabled = false;
+protected IRCConnection connection;
+
+protected GenericCommandAutoService( IRCConnection connection )
+{
+	this.connection = connection;
+
+	enable();
+}
+
+public synchronized void enable()
+{
+	if( enabled )
+		return;
+	
+	connection.addCommandObserver( this );
+	enabled = true;
+}
+
+public synchronized void disable()
+{
+	if( !enabled )
+		return;
+		
+	connection.removeCommandObserver( this );
+	enabled = false;
+}
+
+public synchronized void update( Observable observer, Object updated )
+{
+	if( !enabled )
+		throw new IllegalStateException("This observer is not enabled." );
+	if( updated instanceof State )
+	{
+		throw new IllegalArgumentException("This is not a state observer." );
+	}
+	else if( updated instanceof InCommand )
+	{
+		updateCommand( (InCommand)updated );
+	}
+	else
+	{
+		throw new IllegalArgumentException("Unknown object given to update.");
+	}
+}
+
+protected IRCConnection getConnection()
+{
+	return connection;
+}
+
+protected synchronized boolean isEnabled()
+{
+	return enabled;
+}
+
+protected abstract void updateCommand( InCommand command );
+
+
+// END AutoRegister
+}
+ 
+
+
+