threads 1

CopyFileRunnable.java

import java.io.*;
import org.apache.log4j.BasicConfigurator;
import org.apache.log4j.Logger;
import org.perf4j.LoggingStopWatch;
import org.perf4j.StopWatch;

import java.io.File;
import java.io.IOException;


public class CopyFileRunnable implements Runnable {
    private static final Logger logger = Logger.getLogger(CopyFileRunnable.class);
    private static final int BUFFER_SIZE = 1024;
    File source;
    File destination;

    public CopyFileRunnable(File source, File destination){
        this.source = source;
        this.destination = destination;
    }
    @Override
    public void run()  {
        if (!source.isFile())
            throw new IllegalArgumentException("Input file must be an actual file!");
        try {
            if (!destination.exists())
                destination.createNewFile();
        }
        catch (IOException exception){
            logger.error("Failed to creat new file: " + exception) ;
        }
        InputStream in = null;
        OutputStream out = null;

        try {
            in = new FileInputStream(source);
            out = new FileOutputStream(destination);

            byte[] buf = new byte[BUFFER_SIZE];
            int len;
            while ((len = in.read(buf)) > 0) {
                out.write(buf, 0, len);
            }
        }
        catch (IOException exception) {
            logger.error("Failed to copy directory. Exception information: " + exception);
        }
        finally {
            try {
            if (in != null)
                in.close();
            if (out != null)
                out.close();
            }
            catch (IOException e){
                logger.error("exceptiopn!" + e);
            }
        }
    }
}