Java Tailer-class And Method Code Example

Here is an example of how to use the Tailer class from the Apache Commons IO library to tail a log file in Java:



public class LogFileTailer {
    public static void main(String[] args) {
        File logFile = new File("path/to/logfile.log");
        TailerListenerAdapter listener = new TailerListenerAdapter() {
            public void handle(String line) {
        Tailer tailer = new Tailer(logFile, listener, 1000);
        Thread tailerThread = new Thread(tailer);

In this example, the Tailer class is used to tail the log file located at "path/to/logfile.log". A TailerListenerAdapter is created and overridden to handle new lines that are appended to the log file. The tailer is set to check for new lines every 1000 milliseconds. A new thread is created to run the tailer and is set to be a daemon thread so that it will automatically exit when the main program exits.