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Handle File upload and cut Image using ImageUtilities
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| private static Boolean handleProfilePictureUpload(User user, Request request) { | |
| Boolean isChanged = Boolean.FALSE; | |
| Http.MultipartFormData body = request.body().asMultipartFormData(); | |
| Http.MultipartFormData.FilePart uploadFilePart = body | |
| .getFile("picture"); | |
| if (uploadFilePart != null) { | |
| File file = uploadFilePart.getFile(); | |
| ImageUtilities.scale(file, 50, 50); // x = 50px y = 50px | |
| S3File s3File = new S3File(); | |
| s3File.setName(uploadFilePart.getFilename()); | |
| s3File.setFile(file); | |
| s3File.save(); | |
| user.picture = s3File; | |
| isChanged = Boolean.TRUE; | |
| } | |
| return isChanged; | |
| } | |
| } |
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| import java.awt.Graphics; | |
| import java.awt.GraphicsConfiguration; | |
| import java.awt.GraphicsDevice; | |
| import java.awt.GraphicsEnvironment; | |
| import java.awt.HeadlessException; | |
| import java.awt.Image; | |
| import java.awt.Transparency; | |
| import java.awt.image.BufferedImage; | |
| import java.io.File; | |
| import java.io.IOException; | |
| import javax.imageio.ImageIO; | |
| import javax.swing.ImageIcon; | |
| import play.Logger; | |
| public class ImageUtilities { | |
| public static File scale(File in, Integer scaleX, Integer scaleY) { | |
| BufferedImage image = null; | |
| try { | |
| image = ImageIO.read(in); | |
| Image newImg = image.getScaledInstance(scaleX, scaleY, | |
| Image.SCALE_SMOOTH); | |
| BufferedImage outScaled = toBufferedImage(newImg); | |
| ImageIO.write(outScaled, "jpg", in); | |
| } catch (IOException e) { | |
| Logger.error("Error scaling image"); | |
| e.printStackTrace(); | |
| } | |
| return in; | |
| } | |
| public static File resize(File in, Integer x, Integer y, Integer width, Integer height) { | |
| BufferedImage image = null; | |
| try { | |
| image = ImageIO.read(in); | |
| BufferedImage outResized = image.getSubimage(x, y, width, height); | |
| ImageIO.write(outResized, "jpg", in); | |
| } catch (IOException e) { | |
| Logger.error("Error scaling image"); | |
| e.printStackTrace(); | |
| } | |
| return in; | |
| } | |
| /** | |
| * | |
| * @param image | |
| * @return | |
| */ | |
| // This method returns a buffered image with the contents of an image | |
| private static BufferedImage toBufferedImage(Image image) { | |
| if (image instanceof BufferedImage) { | |
| return (BufferedImage) image; | |
| } | |
| // This code ensures that all the pixels in the image are loaded | |
| image = new ImageIcon(image).getImage(); | |
| // Determine if the image has transparent pixels; for this method's | |
| // implementation, see Determining If an Image Has Transparent Pixels | |
| // Create a buffered image with a format that's compatible with the | |
| // screen | |
| BufferedImage bimage = null; | |
| GraphicsEnvironment ge = GraphicsEnvironment | |
| .getLocalGraphicsEnvironment(); | |
| try { | |
| // Determine the type of transparency of the new buffered image | |
| int transparency = Transparency.OPAQUE; | |
| // Create the buffered image | |
| GraphicsDevice gs = ge.getDefaultScreenDevice(); | |
| GraphicsConfiguration gc = gs.getDefaultConfiguration(); | |
| bimage = gc.createCompatibleImage(image.getWidth(null), | |
| image.getHeight(null), transparency); | |
| } catch (HeadlessException e) { | |
| // The system does not have a screen | |
| } | |
| if (bimage == null) { | |
| // Create a buffered image using the default color model | |
| int type = BufferedImage.TYPE_INT_RGB; | |
| bimage = new BufferedImage(image.getWidth(null), | |
| image.getHeight(null), type); | |
| } | |
| // Copy image to buffered image | |
| Graphics g = bimage.createGraphics(); | |
| // Paint the image onto the buffered image | |
| g.drawImage(image, 0, 0, null); | |
| g.dispose(); | |
| return bimage; | |
| } | |
| } |
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| package controllers; | |
| import models.files.S3File; | |
| import be.objectify.deadbolt.actions.RoleHolderPresent; | |
| import play.mvc.Controller; | |
| import play.mvc.Result; | |
| import static actions.CurrentUser.currentUser; | |
| public class RemoteAssets extends Controller { | |
| public static Result getProfilePicture() { | |
| Result result = null; | |
| S3File file = currentUser().picture; // attribute picture from model User | |
| if (file != null) { | |
| result = ok(file.getObjectContent()); | |
| } else { | |
| result = null; | |
| } | |
| return result; | |
| } | |
| } |
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| @(currentUser: User) | |
| @if(currentUser.picture != null) { | |
| <img src="@{routes.RemoteAssets.getProfilePicture}" /> | |
| } |
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