MainSliderImageController.java

package org.dicadeveloper.weplantaforest.mainSliderImage;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.dicadeveloper.weplantaforest.FileSystemInjector;
import org.dicadeveloper.weplantaforest.common.image.ImageHelper;
import org.dicadeveloper.weplantaforest.support.Uris;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import lombok.NonNull;
import lombok.RequiredArgsConstructor;

@RestController
@RequiredArgsConstructor(onConstructor = @__(@Autowired) )
public class MainSliderImageController {

    protected final Log LOG = LogFactory.getLog(MainSliderImageController.class.getName());
    
    @Autowired
    private @NonNull ImageHelper _imageHelper;

    @Autowired
    private @NonNull MainSliderImageRepository _mainSliderImageRepository;

    @RequestMapping(value = Uris.MAIN_SLIDER_IMAGES, method = RequestMethod.GET)
    public Iterable<MainSliderImage> getSliderImageEntities() {
        return _mainSliderImageRepository.findAll();
    }
    
    @RequestMapping(value = Uris.MAIN_SLIDER_IMAGE + "{imageName:.+}/{width}/{height}", method = RequestMethod.GET, headers = "Accept=image/jpeg, image/jpg, image/png, image/gif")
    public ResponseEntity<?> getImage(HttpServletResponse response, @PathVariable String imageName, @PathVariable int width, @PathVariable int height) {
        String filePath = FileSystemInjector.getMainImageFolder() + "/" + imageName;
        try {
            _imageHelper.writeImageToOutputStream(response.getOutputStream(), filePath, width, height);
            return new ResponseEntity<>(HttpStatus.OK);
        } catch (IOException e) {
            LOG.error("Error occured while trying to get image " + imageName + " in folder: " + filePath, e);
            return new ResponseEntity<>(HttpStatus.BAD_REQUEST);
        }
    }

}