DataSetConverter.java

package no.nsd.programvareutvikling;

import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.IOUtils;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.UUID;

public class DataSetConverter {
    public static class SimpleHandler extends AbstractHandler {
        @Override
        public void handle(String s, Request request, HttpServletRequest httpServletRequest, HttpServletResponse response) throws IOException, ServletException {
            boolean isMultipart = ServletFileUpload.isMultipartContent(request);
            if (isMultipart) {
                ServletFileUpload upload = new ServletFileUpload();
                try {
                    FileItemIterator iter = upload.getItemIterator(request);
                    while (iter.hasNext()) {
                        long starttime = System.currentTimeMillis();
                        FileItemStream item = iter.next();
                        InputStream stream = item.openStream();
                        String filename = UUID.randomUUID().toString() + ".bin";
                        try (OutputStream os = new BufferedOutputStream(new FileOutputStream(filename))) {
                            IOUtils.copy(stream, os);
                        }
                        long diff = System.currentTimeMillis() - starttime;
                        System.out.println("Saved filename " + filename + " in " + diff + " ms");
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static void main(String[] args) throws Exception {
        Server server = new Server(8090);
        server.setHandler(new SimpleHandler());
        server.start();
        server.dumpStdErr();
        server.join();
    }
}