File	Doc	Category	Size	Date	Package
SMTPHandlerChain.java	API Doc	Apache James 2.3.1	11792	Fri Jan 12 12:56:26 GMT 2007	org.apache.james.smtpserver

SMTPHandlerChain

• java.lang.Object
  • org.apache.avalon.framework.logger.AbstractLogEnabled

Fields Summary
private HashMap	commandHandlerMap
private ArrayList	messageHandlers
private ArrayList	connectHandlers
private final CommandHandler	unknownHandler
private org.apache.avalon.framework.service.ServiceManager	serviceManager
private static final String[]	mandatoryCommands

Constructors Summary

Methods Summary
private void	addToMap(java.lang.String commandName, CommandHandler cmdHandler) Add it to map (key as command name, value is an array list of commandhandlers) param commandName the command name which will be key param cmdHandler The commandhandler object ArrayList handlers = (ArrayList)commandHandlerMap.get(commandName); if(handlers == null) { handlers = new ArrayList(); commandHandlerMap.put(commandName, handlers); } handlers.add(cmdHandler);
public void	configure(org.apache.avalon.framework.configuration.Configuration configuration) loads the various handlers from the configuration param configuration configuration under handlerchain node addToMap(UnknownCmdHandler.UNKNOWN_COMMAND, unknownHandler); if(configuration == null || configuration.getChildren("handler") == null || configuration.getChildren("handler").length == 0) { configuration = new DefaultConfiguration("handlerchain"); Properties cmds = new Properties(); cmds.setProperty("AUTH",AuthCmdHandler.class.getName()); cmds.setProperty("DATA",DataCmdHandler.class.getName()); cmds.setProperty("EHLO",EhloCmdHandler.class.getName()); cmds.setProperty("EXPN",ExpnCmdHandler.class.getName()); cmds.setProperty("HELO",HeloCmdHandler.class.getName()); cmds.setProperty("HELP",HelpCmdHandler.class.getName()); cmds.setProperty("MAIL",MailCmdHandler.class.getName()); cmds.setProperty("NOOP",NoopCmdHandler.class.getName()); cmds.setProperty("QUIT",QuitCmdHandler.class.getName()); cmds.setProperty("RCPT" ,RcptCmdHandler.class.getName()); cmds.setProperty("RSET",RsetCmdHandler.class.getName()); cmds.setProperty("VRFY",VrfyCmdHandler.class.getName()); cmds.setProperty("Default SendMailHandler",SendMailHandler.class.getName()); Enumeration e = cmds.keys(); while (e.hasMoreElements()) { String cmdName = (String) e.nextElement(); String className = cmds.getProperty(cmdName); DefaultConfiguration cmdConf = new DefaultConfiguration("handler"); cmdConf.setAttribute("command",cmdName); cmdConf.setAttribute("class",className); ((DefaultConfiguration) configuration).addChild(cmdConf); } } if(configuration != null) { Configuration[] children = configuration.getChildren("handler"); if ( children != null ) { ClassLoader classLoader = getClass().getClassLoader(); for ( int i = 0 ; i < children.length ; i++ ) { String className = children[i].getAttribute("class"); if(className != null) { //load the handler try { Object handler = classLoader.loadClass(className).newInstance(); //enable logging if (handler instanceof LogEnabled) { ((LogEnabled)handler).enableLogging(getLogger()); } //servicing the handler ContainerUtil.service(handler,serviceManager); //configure the handler ContainerUtil.configure(handler,children[i]); //if it is a connect handler add it to list of connect handlers if(handler instanceof ConnectHandler) { connectHandlers.add((ConnectHandler)handler); if (getLogger().isInfoEnabled()) { getLogger().info("Added ConnectHandler: " + className); } } //if it is a command handler add it to the map with key as command name if(handler instanceof CommandHandler) { String commandName = children[i].getAttribute("command"); commandName = commandName.toUpperCase(Locale.US); addToMap(commandName, (CommandHandler)handler); if (getLogger().isInfoEnabled()) { getLogger().info("Added Commandhandler: " + className); } } //if it is a message handler add it to list of message handlers if(handler instanceof MessageHandler) { messageHandlers.add((MessageHandler)handler); if (getLogger().isInfoEnabled()) { getLogger().info("Added MessageHandler: " + className); } } } catch (ClassNotFoundException ex) { if (getLogger().isErrorEnabled()) { getLogger().error("Failed to add Commandhandler: " + className,ex); } throw new ConfigurationException("Failed to add Commandhandler: " + className,ex); } catch (IllegalAccessException ex) { if (getLogger().isErrorEnabled()) { getLogger().error("Failed to add Commandhandler: " + className,ex); } throw new ConfigurationException("Failed to add Commandhandler: " + className,ex); } catch (InstantiationException ex) { if (getLogger().isErrorEnabled()) { getLogger().error("Failed to add Commandhandler: " + className,ex); } throw new ConfigurationException("Failed to add Commandhandler: " + className,ex); } catch (ServiceException e) { if (getLogger().isErrorEnabled()) { getLogger().error("Failed to service Commandhandler: " + className,e); } throw new ConfigurationException("Failed to add Commandhandler: " + className,e); } } } } } //the size must be greater than 1 because we added UnknownCmdHandler to the map if(commandHandlerMap.size() < 2) { if (getLogger().isErrorEnabled()) { getLogger().error("No commandhandlers configured"); } throw new ConfigurationException("No commandhandlers configured"); } else { boolean found = true; for (int i = 0; i < mandatoryCommands.length; i++) { if(!commandHandlerMap.containsKey(mandatoryCommands[i])) { if (getLogger().isErrorEnabled()) { getLogger().error("No commandhandlers configured for the command:" + mandatoryCommands[i]); } found = false; break; } } if(!found) { throw new ConfigurationException("No commandhandlers configured for mandatory commands"); } if (messageHandlers.size() == 0) { if (getLogger().isErrorEnabled()) { getLogger().error("No messageHandler configured. Check that SendMailHandler is configured in the SMTPHandlerChain"); } throw new ConfigurationException("No messageHandler configured"); } }
java.util.List	getCommandHandlers(java.lang.String command) Returns all the configured commandhandlers for the specified command param commandName the command name which will be key return List of commandhandlers if (command == null) { return null; } if (getLogger().isDebugEnabled()) { getLogger().debug("Lookup command handler for command: " + command); } List handlers = (List)commandHandlerMap.get(command); if(handlers == null) { handlers = (List)commandHandlerMap.get(UnknownCmdHandler.UNKNOWN_COMMAND); } return handlers;
java.util.List	getConnectHandlers() Returns all the configured connect handlers return List of connect handlers return connectHandlers;
java.util.List	getMessageHandlers() Returns all the configured message handlers return List of message handlers return messageHandlers;
public void	service(org.apache.avalon.framework.service.ServiceManager arg0) serviceManager = arg0;