话题锁定

f9c8837a · 段启岩 · 65a63e13 · f9c8837a · f9c8837a · f9c8837a
Commit f9c8837a authored Feb 16, 2020 by 段启岩
7 changed files
--- a/src/main/java/cn/meteor/beyondclouds/modules/post/service/impl/PostServiceImpl.java
+++ b/src/main/java/cn/meteor/beyondclouds/modules/post/service/impl/PostServiceImpl.java
@@ -9,7 +9,6 @@ import cn.meteor.beyondclouds.modules.post.enums.PostErrorCode;
 import cn.meteor.beyondclouds.modules.post.exception.PostServiceException;
 import cn.meteor.beyondclouds.modules.post.mapper.PostMapper;
 import cn.meteor.beyondclouds.modules.post.service.IPostService;
-import cn.meteor.beyondclouds.modules.post.vo.PostVO;
 import cn.meteor.beyondclouds.modules.project.exception.ProjectServiceException;
 import cn.meteor.beyondclouds.modules.queue.service.IMessageQueueService;
 import cn.meteor.beyondclouds.modules.topic.entity.Topic;
@@ -136,6 +135,22 @@ public class PostServiceImpl extends ServiceImpl<PostMapper, Post> implements IP
            List<String> topicNames = TopicUtils.parseTopics(post.getContent());
            if (!CollectionUtils.isEmpty(topicNames)) {
                List<Topic> topics = topicService.queryAndCreateByTopicNames(topicNames, post.getUserId());
+                List<String> unLockedTopicNames = topics.stream()
+                        .map(Topic::getTopicName)
+                        .collect(Collectors.toList());
+                // 筛选出被锁定的话题
+                List<String> lockedTopics = topicNames
+                        .stream()
+                        .filter(topicName -> !unLockedTopicNames.contains(topicName))
+                        .collect(Collectors.toList());
+                // 从动态中删除被锁定的话题
+                if (!CollectionUtils.isEmpty(lockedTopics)) {
+                    post.setContent(TopicUtils.clearLockedTopics(postContent, lockedTopics));
+                    updateById(post);
+                }
                List<String> topicIds = topics.stream().map(Topic::getTopicId).collect(Collectors.toList());
                // 关联话题和动态

--- a/src/main/java/cn/meteor/beyondclouds/modules/topic/api/TopicApi.java
+++ b/src/main/java/cn/meteor/beyondclouds/modules/topic/api/TopicApi.java
@@ -139,8 +139,13 @@ public class TopicApi {
        if (bindingResult.hasErrors()) {
            return Response.fieldError(bindingResult.getFieldError());
        }
-        PageDTO<UserFollowDTO> page = topicService.getTopicsFollower(pageForm.getPage(), pageForm.getSize(), topicId);
+        PageDTO<UserFollowDTO> page;
-        return Response.success(page);
+        try {
+            page = topicService.getTopicsFollower(pageForm.getPage(), pageForm.getSize(), topicId);
+            return Response.success(page);
+        } catch (TopicServiceException e) {
+            return Response.error(e);
+        }
    }

--- a/src/main/java/cn/meteor/beyondclouds/modules/topic/entity/Topic.java
+++ b/src/main/java/cn/meteor/beyondclouds/modules/topic/entity/Topic.java
@@ -47,6 +47,8 @@ public class Topic implements Serializable {
    @ApiModelProperty(value = "被引用次数")
    private Integer referenceCount;
+    private Integer status;
    private Date createTime;
    private Date updateTime;

--- a/src/main/java/cn/meteor/beyondclouds/modules/topic/mapper/xml/TopicMapper.xml
+++ b/src/main/java/cn/meteor/beyondclouds/modules/topic/mapper/xml/TopicMapper.xml
@@ -11,6 +11,7 @@
        FROM topic t, search_degree  sd
        WHERE t.topic_id = sd.item_id
        AND sd.item_type = 'TOPIC'
+        AND t.status = 0
        ORDER BY sd.degree DESC
    </select>

--- a/src/main/java/cn/meteor/beyondclouds/modules/topic/service/ITopicService.java
+++ b/src/main/java/cn/meteor/beyondclouds/modules/topic/service/ITopicService.java
@@ -73,7 +73,7 @@ public interface ITopicService extends IService<Topic> {
     * @param topicId
     * @return
     */
-    PageDTO<UserFollowDTO> getTopicsFollower(Integer page, Integer size, String topicId);
+    PageDTO<UserFollowDTO> getTopicsFollower(Integer page, Integer size, String topicId) throws TopicServiceException;
    /**
     * 获取用户的话题分页

--- a/src/main/java/cn/meteor/beyondclouds/modules/topic/service/impl/TopicServiceImpl.java
+++ b/src/main/java/cn/meteor/beyondclouds/modules/topic/service/impl/TopicServiceImpl.java
@@ -35,6 +35,7 @@ import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import net.sf.jsqlparser.statement.select.Top;
 import org.elasticsearch.common.recycler.Recycler;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -140,6 +141,7 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
        IPage<Topic> page = new Page<>(pageNumber, pageSize);
        QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
        topicQueryWrapper.like("topic_name", keywords);
+        topicQueryWrapper.eq("status", 0);
        IPage<Topic> topicPage = page(page, topicQueryWrapper);
        // 更新话题的搜索量
@@ -211,6 +213,7 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
        //2. 获取话题
        QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
        topicQueryWrapper.eq(topicAccessWay.getFieldName(), identification);
+        topicQueryWrapper.eq("status", 0);
        topic = getOne(topicQueryWrapper);
        // 找不到该话题，抛出业务异常
@@ -246,7 +249,11 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
    public void followTopic(String userId, String topicId) throws TopicServiceException {
        //1. 获取话题
-        Topic topic = getById(topicId);
+        QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
+        topicQueryWrapper.eq("topic_id", topicId);
+        topicQueryWrapper.eq("status", 0);
+        Topic topic = getOne(topicQueryWrapper);
        //2. 找不到该话题，抛出业务异常
        if (topic == null) {
@@ -307,8 +314,15 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
    }
    @Override
-    public PageDTO<UserFollowDTO> getTopicsFollower(Integer pageNumber, Integer pageSize, String topicId) {
+    public PageDTO<UserFollowDTO> getTopicsFollower(Integer pageNumber, Integer pageSize, String topicId) throws TopicServiceException {
+        QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
+        topicQueryWrapper.eq("status", 0);
+        topicQueryWrapper.eq("topic_id", topicId);
+        Topic topic = getOne(topicQueryWrapper);
+        if (null == topic) {
+            throw new TopicServiceException(TopicErrorCode.TOPIC_NOT_EXISTS);
+        }
        // 1. 通过话题id获取该话题所有关注着
        // 设置分页信息
        IPage<TopicFollow> page = new Page<>(pageNumber, pageSize);
@@ -383,6 +397,7 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
    public PageDTO<TopicDTO> getTopicPage(Integer pageNumber, Integer pageSize) {
        IPage<Topic> page = new Page<>(pageNumber, pageSize);
        QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
+        topicQueryWrapper.eq("status", 0);
        topicQueryWrapper.orderByDesc("create_time");
        return toPageDTO(page(page, topicQueryWrapper));
    }
@@ -455,6 +470,7 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
        IPage<Topic> page = new Page<>(pageNumber, pageSize);
        QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
+        topicQueryWrapper.eq("status", 0);
        topicQueryWrapper.orderByDesc("reference_count");
        return toPageDTO(page(page, topicQueryWrapper));
@@ -469,6 +485,7 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
        //2. 判断该话题是否存在
        QueryWrapper<Topic> topicQueryWrapper = new QueryWrapper<>();
        topicQueryWrapper.eq("topic_name",topicName);
+        topicQueryWrapper.eq("status",0);
        Topic topic=getOne(topicQueryWrapper);
        if (topic == null) {
            throw new TopicServiceException(TopicErrorCode.TOPIC_NOT_EXISTS);
@@ -542,12 +559,14 @@ public class TopicServiceImpl extends ServiceImpl<TopicMapper, Topic> implements
            topics.add(topic);
        });
-        return topics;
+        // 过滤掉被锁定的话题
+        List<Topic> topicList = topics.stream().filter((topic -> topic.getStatus() == 0)).collect(Collectors.toList());
+        return topicList;
    }
    @Override
    public PageDTO<TopicDTO> getHotSearchTopics(Integer pageNumber, Integer pageSize) {
-        IPage<Topic> topicPage = topicMapper.selectHotSearchPage(new Page<Topic>(pageNumber, pageSize));
+        IPage<Topic> topicPage = topicMapper.selectHotSearchPage(new Page<>(pageNumber, pageSize));
        return toPageDTO(topicPage);
    }

--- a/src/main/java/cn/meteor/beyondclouds/util/TopicUtils.java
+++ b/src/main/java/cn/meteor/beyondclouds/util/TopicUtils.java
@@ -53,6 +53,20 @@ public class TopicUtils {
    public static void main(String[] args) {
        System.out.println(TopicUtils.parseTopics("#哈哈哈#今#哈哈哈#天你吃饭了吗#吃了#######"));
        System.out.println(TopicUtils.encodeTopic("#哈哈哈#今#哈哈哈#天你吃饭了吗#吃了#######哈哈#a#b"));
+        System.out.println(TopicUtils.clearLockedTopics("#哈哈哈#今#哈哈哈#天你吃饭了吗#吃了#######哈哈#a#b", List.of("哈哈哈")));
    }
+    /**
+     * 删除被锁定的话题
+     * @param content
+     * @param lockedTopics
+     * @return
+     */
+    public static String clearLockedTopics(String content, List<String> lockedTopics) {
+        String newContent = content;
+        for (String topicName: lockedTopics) {
+            newContent = newContent.replace("#" + topicName + "#", "");
+        }
+        return encodeTopic(newContent);
+    }
 }