Play 2.3.x FileHandling.java example

package controllers;

import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

import play.Logger;
import play.mvc.Controller;
import play.mvc.Http.MultipartFormData;
import play.mvc.Result;

public class FileHandling extends Controller {

	// private final static String defLang = "en";
	private final static String userName = "guest";

	private final static String fileFolder = play.Play.application()
			.configuration().getString("filedb.localfolder");

	public static Result index() {

		final String lang = Application.getLang(session("lang"));

		return ok(views.html.fileindex.render("filehandling basurl test", lang,
				userName));
	}

	public static Result handleUpload() {

		final String lang = Application.getLang(session("lang"));

		MultipartFormData body = request().body().asMultipartFormData();
		MultipartFormData.FilePart picture = body.getFile("picture");

		if (picture != null) {
			String fileName = picture.getFilename();
			// FB DEAD String contentType = picture.getContentType();
			File file = picture.getFile();
			FileInputStream fis = null;
			FileOutputStream fos = null;
			try {
				File savedFile = new File(fileFolder + fileName);

				if (savedFile.exists()) {
					return ok(views.html.fileindex.render(
							"error, file exists already", lang, userName));
				} else {

					boolean retval = savedFile.createNewFile();
					if (!retval) {
						Logger.error("couldn't create/save file "
								+ savedFile.getAbsolutePath());
					}
					fis = new FileInputStream(file);
					ByteArrayOutputStream bos = new ByteArrayOutputStream();

					byte[] buf = new byte[1024];
					for (int readNum; (readNum = fis.read(buf)) != -1;) {
						bos.write(buf, 0, readNum); // no doubt here is 0
						// Writes len bytes from the specified byte array
						// starting at offset off to this byte array output
						// stream.
					}

					byte[] bytes = bos.toByteArray();
					fos = new FileOutputStream(savedFile);
					fos.write(bytes);
					fos.flush();
					fos.close();
					fis.close();
				}

			} catch (IOException e) {
				e.printStackTrace();
				return ok(views.html.fileindex.render("error IOException",
						lang, userName));
			} finally {
				if (fis != null) {
					try {
						fis.close();
					} catch (IOException e) {
						e.printStackTrace();
					}
				}
				if (fos != null) {
					try {
						fos.close();
					} catch (IOException e) {
						e.printStackTrace();
					}

				}
			}

			return ok(views.html.fileindex.render("could have worked", lang,
					userName));

		} else {
			return ok(views.html.fileindex.render("error, Missing file", lang,
					userName));
			// flash("error", "Missing file");
			// return redirect(routes.FileHandling.index());
		}
	}

	public static Result handleDirectUpload() {

		final String lang = Application.getLang(session("lang"));

		File file = request().body().asRaw().asFile();

		FileInputStream fis = null;
		FileOutputStream fos = null;

		try {
			String fileName = file.getName();

			File savedFile = new File(fileFolder + fileName);

			if (savedFile.exists()) {
				return ok(views.html.fileindex.render(
						"error, file exists already", lang, userName));
			} else {

				boolean retval = savedFile.createNewFile();
				if (!retval) {
					Logger.error("couldn't create/save file "
							+ savedFile.getAbsolutePath());
				}
				fis = new FileInputStream(file);
				ByteArrayOutputStream bos = new ByteArrayOutputStream();

				byte[] buf = new byte[1024];
				for (int readNum; (readNum = fis.read(buf)) != -1;) {
					bos.write(buf, 0, readNum); // no doubt here is 0
					// Writes len bytes from the specified byte array starting
					// at offset off to this byte array output stream.
				}

				byte[] bytes = bos.toByteArray();
				fos = new FileOutputStream(savedFile);
				fos.write(bytes);
				fos.flush();
				fos.close();
				fis.close();
			}

		} catch (IOException e) {
			e.printStackTrace();
			return ok(views.html.fileindex.render("error IOException", lang,
					userName));
		} finally {
			if (fis != null) {
				try {
					fis.close();
				} catch (IOException e) {
					e.printStackTrace();
				}
			}
			if (fos != null) {
				try {
					fos.close();
				} catch (IOException e) {
					e.printStackTrace();
				}

			}
		}

		return ok("could have worked");

	}
}