+ @Bean
+ MessageChannel messageLog()
+ {
+ return new DirectChannel();
+ }
+
+ @GlobalChannelInterceptor
+ @Bean
+ ChannelInterceptor globalLoggingWireTap(MessageChannel messageLog)
+ {
+ return new WireTap(messageLog);
+ }
+
+ @Bean
+ @ServiceActivator(inputChannel = "messageLog")
+ public LoggingHandler logging()
+ {
+ LoggingHandler adapter = new LoggingHandler(LoggingHandler.Level.DEBUG);
+ adapter.setLoggerName("MESSAGE_LOG");
+ adapter.setLogExpressionString("headers.id + ': ' + payload + ', headers=' + headers");
+ return adapter;
+ }
+
+