package basicServlet;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@SuppressWarnings("serial")
public class ImageServlet extends HttpServlet {

	public void service(HttpServletRequest req, HttpServletResponse res)
			throws IOException {

		res.setContentType("image/jpeg");

		File location = new File("C:\\Users\\bayac\\OneDrive\\Pictures\\2017-12\\");
		ArrayList<File> images = new ArrayList<File>(Arrays.asList(location.listFiles()));

		ServletOutputStream out = res.getOutputStream();
		int i = 0;
		FileInputStream fin = new FileInputStream(images.get(i));

		BufferedInputStream bin = new BufferedInputStream(fin);
		BufferedOutputStream bout = new BufferedOutputStream(out);

		for(i = 1; i < images.size(); i++) {

			int ch = 0;

			while ((ch = bin.read()) != -1) {
				bout.write(ch);
			}

			System.out.println("Image printed");
			fin = new FileInputStream(images.get(i));
			bin = new BufferedInputStream(fin);
			System.out.println("New Stream Done");
			try {
				System.out.println("Sleep attempted");
				Thread.sleep(3000);
				System.out.println("Sleep finished");
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		bin.close();
		fin.close();
		bout.close();
		out.close();

	}

}