ImageEffectsDataController.java

package architecture.studio.web.spring.controller.secure;


import java.io.File;
import java.io.IOException;

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

import org.apache.commons.compress.utils.IOUtils;
import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.http.HttpStatus;
import org.springframework.security.access.annotation.Secured;
import org.springframework.stereotype.Controller;
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.ResponseBody;

import architecture.community.image.Image;
import architecture.community.image.ImageService;
import architecture.community.web.spring.controller.data.ResourceUtils;
import architecture.studio.service.ImageEffectsService;
import architecture.studio.service.ImageEffectsService.Effects;;

@Controller("studio-media-image-effects-data-controller")
@RequestMapping("/data/images")
public class ImageEffectsDataController {

    private Logger log = LoggerFactory.getLogger(getClass());
	
    @Autowired
    @Qualifier("imageService") 
    private ImageService imageService;

    @Autowired( required = false)
    @Qualifier("imageEffectsService") 
    private ImageEffectsService imageEffectsService;

    @Secured({ "ROLE_ADMINISTRATOR", "ROLE_SYSTEM", "ROLE_DEVELOPER"})
    @RequestMapping(value = "/{imageId:[\\p{Digit}]+}/effect:{effect}", method = { RequestMethod.GET, RequestMethod.POST })
    @ResponseBody
    public void effect(@PathVariable("imageId") Long imageId,
        @PathVariable("effect") String effect,
	HttpServletRequest request, HttpServletResponse response) throws IOException { 
        try { 
            log.debug("Media Editor image : {} with effect : {} ", imageId, effect);
            if (imageId <= 0 ) {
	        throw new IllegalArgumentException();
	    } 
            Image image = imageService.getImage(imageId);
            File source = imageService.getImageFile(image); 
            Effects effectToUse = ImageEffectsService.Effects.valueOf(effect.toUpperCase());
            File dir = imageEffectsService.getImageEffectDir() ;
            StringBuilder sb = new StringBuilder();
            sb.append(image.getImageId()).append("_").append(effectToUse.name().toLowerCase()).append(".jpeg");
            File target = new File( dir , sb.toString() ); 
            if( !target.exists() ) {
                imageEffectsService.effect(source, target, effectToUse);
            }
	    response.setContentType("image/jpeg");
	    response.setContentLength((int)FileUtils.sizeOf(target)); 
	    IOUtils.copy(target, response.getOutputStream());
	    response.flushBuffer();
	} catch (Throwable e) {
	    log.warn(e.getMessage(), e);
	    response.setStatus(HttpStatus.NOT_FOUND.value());
	    ResourceUtils.noThumbnails(request, response);
	}
    }
}