Read Periodically a file ( http://stackoverflow.com/questions/24088659/reading-inputstream-periodically/24088727 )

ReadPeriodically.java

import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.StringWriter;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import org.apache.commons.io.IOUtils;

public class ReadPeriodically {
	
	static  public void main(String... args) throws Exception {
		
		final InputStream is = new FileInputStream("/tmp/logfile.txt");
		ScheduledExecutorService executorService  = Executors.newSingleThreadScheduledExecutor();
		executorService.scheduleAtFixedRate(new Runnable() {


			@Override
			public void run() {
				try {
					if (is.available() > 0) {
						StringWriter sw = new StringWriter();
						IOUtils.copy(is, sw,"UTF-8");
						System.out.print(sw.toString());
					}
				} catch (IOException e) {
					System.out.println("Problem reading the file");
				}
				
			}
			
		}, 0, 15, TimeUnit.SECONDS);
	}
}