ImageCropper

package org.primefaces.showcase.view.multimedia;

import org.primefaces.model.CroppedImage;

import java.io.File;

import javax.imageio.stream.FileImageOutputStream;

import jakarta.enterprise.context.RequestScoped;
import jakarta.faces.application.FacesMessage;
import jakarta.faces.context.ExternalContext;
import jakarta.faces.context.FacesContext;
import jakarta.inject.Named;

@Named
@RequestScoped
public class CropperView {

    private CroppedImage croppedImage;

    private String newImageName;

    public CroppedImage getCroppedImage() {
        return croppedImage;
    }

    public void setCroppedImage(CroppedImage croppedImage) {
        this.croppedImage = croppedImage;
    }

    public void crop() {
        if (croppedImage == null) {
            return;
        }

        setNewImageName(getRandomImageName());
        ExternalContext externalContext = FacesContext.getCurrentInstance().getExternalContext();
        String newFileName = externalContext.getRealPath("") + File.separator + "resources" + File.separator + "demo"
                + File.separator + "images" + File.separator + "crop" + File.separator + getNewImageName() + ".jpg";

        FileImageOutputStream imageOutput;
        try {
            imageOutput = new FileImageOutputStream(new File(newFileName));
            imageOutput.write(croppedImage.getBytes(), 0, croppedImage.getBytes().length);
            imageOutput.close();
        }
        catch (Exception e) {
            FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Error", "Cropping failed."));
            return;
        }

        FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Success", "Cropping finished."));
    }

    private String getRandomImageName() {
        int i = (int) (Math.random() * 100000);

        return String.valueOf(i);
    }

    public String getNewImageName() {
        return newImageName;
    }

    public void setNewImageName(String newImageName) {
        this.newImageName = newImageName;
    }
}