net.codejava.analyse.HomeController.java Source code

Introduction

Here is the source code for net.codejava.analyse.HomeController.java

Source

package net.codejava.analyse;

/**
 * @author Martin Falk Danauskis
 * 
 * Copyright 2013 Fredrik Johansson, Lisa Rythn Larsson, Martin Falk Danauskis, Max Dubois
 *
 * 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.
 */

import java.io.FileOutputStream;
import java.io.IOException;
import java.text.DateFormat;
import java.util.Date;
import java.util.Locale;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
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;

/**
 * Handles requests for the application home page.
 */
@Controller
public class HomeController {

    private static final Logger logger = LoggerFactory.getLogger(HomeController.class);

    /**
     * Simply selects the home view to render by returning its name. Used to check that the server is up and running.
     */
    @RequestMapping(value = "/", method = RequestMethod.GET)
    public String home(Locale locale, Model model) {
        logger.info("Welcome home! The client locale is {}.", locale);

        Date date = new Date();
        DateFormat dateFormat = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.LONG, locale);

        String formattedDate = dateFormat.format(date);

        model.addAttribute("serverTime", formattedDate);

        return "home";
    }

    /**
     * Controller method which respondes to a POST requst. It receives a MultipartFile, which in this case is a picture.
     * The controller writes the MultipartFile as an image to the disk. Afterwards it is executed with the analyse program.
     * After the analysis is performed the result is sent back to the client.
     * @throws InterruptedException 
     */
    @RequestMapping(value = "/upload", method = RequestMethod.POST)
    @ResponseBody
    public String handleFormUpload(@RequestParam("file") MultipartFile file)
            throws IOException, InterruptedException {
        Read r = new Read();
        if (!file.isEmpty()) {
            byte[] bytes = file.getBytes();//Put the bytes into a byte array
            FileOutputStream fos = new FileOutputStream("C:\\Users\\Martin\\Desktop\\IMG1.bmp");//A FileOutputStream with the path where the picture should be
            try {
                fos.write(bytes);//Writes the bytes to a file, in this case "creating" the picture as a .bmp
            } finally {
                fos.close();
                new CommandExecution("C:\\Users\\Martin\\SoftwareEng\\Analyse.bat");
            }
            Thread.sleep(3000);
            String result = r.reader("C:\\Users\\Martin\\Desktop\\Result.txt");
            return result;
        } else {
            return "doesn't work";//Returns this in case of empty file
        }
    }
}