br.edu.ifpb.controllers.TopicController.java Source code

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Here is the source code for br.edu.ifpb.controllers.TopicController.java

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package br.edu.ifpb.controllers;

import br.edu.ifpb.entity.Opinion;
import br.edu.ifpb.entity.Topic;
import br.edu.ifpb.entity.UserProfile;
import br.edu.ifpb.repository.ImageTopicRepository;
import br.edu.ifpb.repository.TopicRepository;
import br.edu.ifpb.services.OpinionService;
import br.edu.ifpb.services.RelationshipService;
import br.edu.ifpb.services.TopicoService;
import br.edu.ifpb.validator.TopicValidator;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.io.InputStreamResource;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.ObjectError;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.io.ByteArrayInputStream;
import java.util.Collections;
import java.util.List;
import java.util.Map;

/**
 *
 * @author kieckegard
 */
@Controller
public class TopicController {

    @Autowired
    private HttpSession httpSession;

    @Autowired
    private HttpServletRequest request;

    @Autowired
    private TopicoService topicoService;

    @Autowired
    private RelationshipService relationshipService;

    @Autowired
    OpinionService opinionService;

    @RequestMapping(value = "/topic", method = RequestMethod.GET)
    public ModelAndView viewTopico(@RequestParam("id") String idTopico) {

        Topic topic = topicoService.findById(idTopico);

        Map<String, String> percentages = relationshipService.getPercentages(topic);

        ModelAndView mav = new ModelAndView("topico");

        List<Opinion> userOpinion = opinionService
                .getUserOpinionsByTopicOrderedByDate((UserProfile) httpSession.getAttribute("user"), topic);
        if (userOpinion != null)
            mav.addObject("userOpinions", userOpinion);
        mav.addObject("topic", topic);
        mav.addObject("id", idTopico);
        mav.addObject("percentages", percentages);

        return mav;
    }

    @RequestMapping(value = "/novoTopico", method = RequestMethod.GET)
    public String novoTopico(TopicValidator topicValidator) {
        return "novoTopico";
    }

    @RequestMapping(value = "/novoTopico", method = RequestMethod.POST)
    public ModelAndView cadastrarNovoTopico(@Valid TopicValidator topicValidator, BindingResult result, Model model,
            @RequestParam("photo") MultipartFile file) {

        String name = topicValidator.getName();
        String description = topicValidator.getDescription();
        UserProfile userProfile = (UserProfile) httpSession.getAttribute("user");

        model.addAttribute("name", name);
        model.addAttribute("description", description);

        ModelAndView modelAndView = new ModelAndView("novoTopico");

        if (file.getSize() == 0) {
            model.addAttribute("erro", "Insira uma imagem para o tpico");
            result.addError(new ObjectError("erroImagem", "faltou inserir imagem"));
        }

        if (result.hasErrors()) {
            return new ModelAndView("novoTopico");
        } else {

            Topic topic = topicoService.saveTopic(topicValidator.getName(), topicValidator.getDescription(),
                    userProfile, file);
            if (topic != null) {

                //                modelAndView.getModel().put("succes", true);
                modelAndView = new ModelAndView("novoTopicoSuccess");
                modelAndView.addObject("id", topic.getId());

            }

        }

        return modelAndView;
    }

    @RequestMapping(value = "/topicsearch", method = RequestMethod.POST)
    public ModelAndView buscar(@RequestParam("parametro") String parametroBusca) {

        ModelAndView mav = new ModelAndView("/topicsearch");

        mav.addObject("parametro", parametroBusca);

        List<Topic> topics = topicoService.findByNameLikeIgnoreCase(parametroBusca);
        Collections.sort(topics, Topic.Comparators.NAME);

        mav.addObject("topics", topics);

        return mav;

    }

    @RequestMapping(value = "/image/{id}", method = RequestMethod.GET)
    @ResponseBody
    public ResponseEntity<InputStreamResource> getImage(@PathVariable String id) {

        byte[] file = ImageTopicRepository.getTopicImage2(id);

        return ResponseEntity.ok().contentLength(file.length)
                //                .contentType(MediaType.parseMediaType(file.getGridFSFile().getMetadata().getString("content-type")))
                .body(new InputStreamResource(new ByteArrayInputStream(file)));
    }

}