com.trenako.web.controllers.ImagesController.java Source code

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Here is the source code for com.trenako.web.controllers.ImagesController.java

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/*
 * Copyright 2012 the original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.trenako.web.controllers;

import javax.servlet.http.HttpServletResponse;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ExceptionHandler;
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.ResponseStatus;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.trenako.web.images.UploadRenderingException;
import com.trenako.web.images.WebImageService;

/**
 * It represents the controller used for images rendering.
 *
 * @author Carlo Micieli
 */
@Controller
@RequestMapping("/images")
public class ImagesController {

    private static final Logger log = LoggerFactory.getLogger("com.trenako.web");
    private final WebImageService imgService;

    /**
     * Creates a new {@code ImagesController}.
     *
     * @param imgService the image service
     */
    @Autowired
    public ImagesController(WebImageService imgService) {
        this.imgService = imgService;
    }

    @RequestMapping(value = "/{imageSlug}", method = RequestMethod.GET)
    public ResponseEntity<byte[]> renderImage(@PathVariable("imageSlug") String imageSlug) {
        return imgService.renderImage(imageSlug);
    }

    @ExceptionHandler(UploadRenderingException.class)
    @ResponseStatus(value = HttpStatus.INTERNAL_SERVER_ERROR)
    public void handleIOException(UploadRenderingException ex, HttpServletResponse response) {
        log.error(ex.toString());
    }
}