SyslogTcpAppender.java 文件源码

void connect(InetAddress address, int port) {
   if(this.address == null)
     return;
   try {
     // First, close the previous connection if any.
     cleanUp();
     stw = new SyslogTcpWriter(new Socket(address, port).getOutputStream(), syslogFacility);
   } catch(IOException e) {
     if (e instanceof InterruptedIOException) {
         Thread.currentThread().interrupt();
     }
     String msg = "Could not connect to remote log4j server at ["
+address.getHostName()+"].";
     if(reconnectionDelay > 0) {
       msg += " We will try again later.";
fireConnector(); // fire the connector thread
     } else {
         msg += " We are not retrying.";
         errorHandler.error(msg, e, ErrorCode.GENERIC_FAILURE);
     } 
     LogLog.error(msg);
   }
 }