org.magnum.mobilecloud.video.VideoLikeController.java Source code

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Here is the source code for org.magnum.mobilecloud.video.VideoLikeController.java

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/*
 * 
 * Copyright 2014 Jules White
 *
 * 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 org.magnum.mobilecloud.video;

import java.security.Principal;
import java.util.Collection;
import java.util.Set;

import javax.servlet.http.HttpServletResponse;

import org.magnum.mobilecloud.video.client.VideoSvcApi;
import org.magnum.mobilecloud.video.repository.Video;
import org.magnum.mobilecloud.video.repository.VideoRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestBody;
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 com.google.common.collect.Lists;

@Controller
public class VideoLikeController {
    @Autowired
    VideoRepository videos;

    @RequestMapping(value = "/go", method = RequestMethod.GET)
    public @ResponseBody String goodLuck() {
        return "Good Luck!";
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_SVC_PATH, method = RequestMethod.GET)
    public @ResponseBody Collection<Video> getVideoList() {
        return Lists.newArrayList(videos.findAll());
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_SVC_PATH + "/{id}", method = RequestMethod.GET)
    public @ResponseBody Video getVideoById(@PathVariable("id") long id) {
        return videos.findOne(id);
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_SVC_PATH, method = RequestMethod.POST)
    public @ResponseBody Video addVideo(@RequestBody Video v) {
        videos.save(v);
        return v;
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_SVC_PATH + "/{id}/like", method = RequestMethod.POST)
    public void likeVideo(@PathVariable("id") long id, Principal p, HttpServletResponse resp) {
        Video v = videos.findOne(id);
        if (v == null) {
            resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
        } else {
            Set<String> likedUsernames = v.getLikedUsernames();
            String username = p.getName();
            if (likedUsernames.contains(username)) {
                resp.setStatus(HttpServletResponse.SC_BAD_REQUEST);
            } else {
                likedUsernames.add(username);
                v.setLikedUsernames(likedUsernames);
                v.setLikes(likedUsernames.size());
                videos.save(v);
            }
        }
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_SVC_PATH + "/{id}/unlike", method = RequestMethod.POST)
    public void unlikeVideo(@PathVariable("id") long id, Principal p, HttpServletResponse resp) {
        Video v = videos.findOne(id);
        if (v == null) {
            resp.setStatus(HttpServletResponse.SC_NOT_FOUND);
        } else {
            Set<String> likedUsernames = v.getLikedUsernames();
            String username = p.getName();
            if (!likedUsernames.contains(username)) {
                resp.setStatus(HttpServletResponse.SC_BAD_REQUEST);
            } else {
                likedUsernames.remove(username);
                v.setLikedUsernames(likedUsernames);
                v.setLikes(likedUsernames.size());
                videos.save(v);
            }
        }
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_TITLE_SEARCH_PATH, method = RequestMethod.GET)
    public @ResponseBody Collection<Video> findByTitle(@RequestParam(VideoSvcApi.TITLE_PARAMETER) String title) {
        return videos.findByName(title);
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_DURATION_SEARCH_PATH, method = RequestMethod.GET)
    public @ResponseBody Collection<Video> findByDurationLessThan(
            @RequestParam(VideoSvcApi.DURATION_PARAMETER) long duration) {
        return videos.findByDurationLessThan(duration);
    }

    @RequestMapping(value = VideoSvcApi.VIDEO_SVC_PATH + "/{id}/likedby", method = RequestMethod.GET)
    public @ResponseBody Collection<String> getUsersWhoLikedVideo(@PathVariable("id") long id) {
        Video v = videos.findOne(id);
        if (v != null) {
            return v.getLikedUsernames();
        }
        // TODO throw 404 error
        return null;
    }
}