eu.trentorise.smartcampus.feedback.controller.FeedbackController.java Source code

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Here is the source code for eu.trentorise.smartcampus.feedback.controller.FeedbackController.java

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/*******************************************************************************
 * Copyright 2012-2013 Trento RISE
 * 
 * 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 eu.trentorise.smartcampus.feedback.controller;

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

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.codehaus.jackson.map.ObjectMapper;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import eu.trentorise.smartcampus.ac.provider.AcService;
import eu.trentorise.smartcampus.ac.provider.AcServiceException;
import eu.trentorise.smartcampus.ac.provider.filters.AcProviderFilter;
import eu.trentorise.smartcampus.ac.provider.model.User;
import eu.trentorise.smartcampus.feedback.manager.FeedbackFileManager;
import eu.trentorise.smartcampus.feedback.manager.FeedbackManager;
import eu.trentorise.smartcampus.feedback.model.Feedback;

/**
 * Feedback controller
 * @author raman
 *
 */
@Controller
public class FeedbackController {

    private static final Log logger = LogFactory.getLog(FeedbackController.class);

    @Autowired
    private AcService acService;

    @Autowired
    private FeedbackManager feedbackManager;
    @Autowired
    private FeedbackFileManager feedbackFileManager;

    private ObjectMapper mapper = new ObjectMapper();

    /**
     * Upload feedback data. Take as input {@link Feedback} instance as JSON String passed 
     * in 'body' param and the {@link MultipartFile} file param for the (optional) screenshot data.
     * @param request
     * @param response
     * @param body
     * @param file
     * @return
     */
    @RequestMapping(value = "/feedback", method = RequestMethod.POST)
    public @ResponseBody String feedback(HttpServletRequest request, HttpServletResponse response,
            @RequestParam("body") String body, @RequestParam(required = false, value = "file") MultipartFile file) {
        User user = null;
        try {
            user = retrieveUser(request, response);
        } catch (AcServiceException e) {
            logger.error("Error reading the user: " + e.getMessage());
        }
        if (user == null) {
            response.setStatus(HttpServletResponse.SC_FORBIDDEN);
            return null;
        }

        try {
            Feedback feedback = mapper.readValue(body, Feedback.class);
            if (feedback == null) {
                response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
                return null;
            }
            feedback.setCreatorId("" + user.getId());
            feedback.setUser(feedback.getCreatorId());

            if (file != null) {
                String fileId = feedbackFileManager.storeFile(file.getBytes());
                feedback.setFileId(fileId);
            }
            feedback = feedbackManager.storeFeedback(feedback);
            return feedback.getId();
        } catch (Exception e) {
            logger.error("Error storing feedback: " + e.getMessage());
            response.setStatus(HttpServletResponse.SC_BAD_REQUEST);
            return null;
        }
    }

    private User retrieveUser(HttpServletRequest request, HttpServletResponse response) throws AcServiceException {
        String token = request.getHeader(AcProviderFilter.TOKEN_HEADER);
        return acService.getUserByToken(token);
    }

}