🎨 文章发布/更新/删除后续事件执行过程解耦

README.md

@@ -98,3 +98,8 @@ forest（[ˈfôrəst]，n.森林）是一款现代化的知识社区项目，使
 - 感谢 `JetBrains` 对本项目的帮助,为作者提供了开源许可版 `JetBrains` 全家桶
 
 ![JetBrains](src/main/resources/static/jb_beam.svg)
+
+
+## ⭐ Star 历史
+
+[![Stargazers over time](https://starchart.cc/rymcu/forest.svg)](https://starchart.cc/rymcu/forest)

src/main/java/com/rymcu/forest/handler/ArticleHandler.java

@@ -0,0 +1,66 @@
+package com.rymcu.forest.handler;
+
+import com.rymcu.forest.core.constant.NotificationConstant;
+import com.rymcu.forest.handler.event.ArticleDeleteEvent;
+import com.rymcu.forest.handler.event.ArticleEvent;
+import com.rymcu.forest.lucene.service.LuceneService;
+import com.rymcu.forest.util.NotificationUtils;
+import com.rymcu.forest.wx.mp.utils.JsonUtils;
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.context.event.EventListener;
+import org.springframework.scheduling.annotation.Async;
+import org.springframework.stereotype.Component;
+
+import javax.annotation.Resource;
+
+/**
+ * Created on 2022/8/16 20:42.
+ *
+ * @author ronger
+ * @email ronger-x@outlook.com
+ */
+@Slf4j
+@Component
+public class ArticleHandler {
+    @Resource
+    private LuceneService luceneService;
+
+    @EventListener
+    @Async
+    public void processArticlePostEvent(ArticleEvent articleEvent) throws InterruptedException {
+        Thread.sleep(1000);
+        log.info(String.format("执行文章发布相关事件：[%s]", JsonUtils.toJson(articleEvent)));
+        // 发送系统通知
+        if (articleEvent.getNotification()) {
+            NotificationUtils.sendAnnouncement(articleEvent.getIdArticle(), NotificationConstant.Article, articleEvent.getArticleTitle());
+        } else {
+            // 发送关注通知
+            StringBuilder dataSummary = new StringBuilder();
+            if (articleEvent.getIsUpdate()) {
+                dataSummary.append(articleEvent.getNickname()).append("更新了文章: ").append(articleEvent.getArticleTitle());
+                NotificationUtils.sendArticlePush(articleEvent.getIdArticle(), NotificationConstant.UpdateArticle, dataSummary.toString(), articleEvent.getArticleAuthorId());
+            } else {
+                dataSummary.append(articleEvent.getNickname()).append("发布了文章: ").append(articleEvent.getArticleTitle());
+                NotificationUtils.sendArticlePush(articleEvent.getIdArticle(), NotificationConstant.PostArticle, dataSummary.toString(), articleEvent.getArticleAuthorId());
+            }
+        }
+        // 草稿不更新索引
+        if (articleEvent.getIsUpdate()) {
+            log.info("更新文章索引，id={}", articleEvent.getIdArticle());
+            luceneService.updateArticle(articleEvent.getIdArticle());
+        } else {
+            log.info("写入文章索引，id={}", articleEvent.getIdArticle());
+            luceneService.writeArticle(articleEvent.getIdArticle());
+        }
+        log.info("执行完成文章发布相关事件...id={}", articleEvent.getIdArticle());
+    }
+
+    @EventListener
+    @Async
+    public void processArticleDeleteEvent(ArticleDeleteEvent articleDeleteEvent) throws InterruptedException {
+        Thread.sleep(1000);
+        log.info(String.format("执行文章删除相关事件：[%s]", JsonUtils.toJson(articleDeleteEvent)));
+        luceneService.deleteArticle(articleDeleteEvent.getIdArticle());
+        log.info("执行完成文章删除相关事件...id={}", articleDeleteEvent.getIdArticle());
+    }
+}

src/main/java/com/rymcu/forest/handler/event/ArticleDeleteEvent.java

@@ -0,0 +1,18 @@
+package com.rymcu.forest.handler.event;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * Created on 2022/8/20 18:51.
+ *
+ * @author ronger
+ * @email ronger-x@outlook.com
+ */
+@Data
+@AllArgsConstructor
+public class ArticleDeleteEvent {
+
+    private Long idArticle;
+
+}

src/main/java/com/rymcu/forest/handler/event/ArticleEvent.java

@@ -0,0 +1,27 @@
+package com.rymcu.forest.handler.event;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+
+/**
+ * Created on 2022/8/16 20:56.
+ *
+ * @author ronger
+ * @email ronger-x@outlook.com
+ */
+@Data
+@AllArgsConstructor
+public class ArticleEvent {
+
+    private Long idArticle;
+
+    private String articleTitle;
+
+    private Boolean isUpdate;
+
+    private Boolean notification;
+
+    private String nickname;
+
+    private Long articleAuthorId;
+}

src/main/java/com/rymcu/forest/lucene/service/impl/LuceneServiceImpl.java

@@ -66,7 +66,7 @@ public class LuceneServiceImpl implements LuceneService {
             int totalCount = list.size();
             int perThreadCount = 3000;
             // 加1避免线程池的参数为0
-            int threadCount = totalCount / perThreadCount + (totalCount % perThreadCount == 0 ? 0 : 1) + 1;
+            int threadCount = totalCount / perThreadCount + (totalCount % perThreadCount == 0 ? 0 : 1);
             ExecutorService pool = Executors.newFixedThreadPool(threadCount);
             CountDownLatch countDownLatch1 = new CountDownLatch(1);
             CountDownLatch countDownLatch2 = new CountDownLatch(threadCount);

src/main/java/com/rymcu/forest/lucene/service/impl/PortfolioLuceneServiceImpl.java

@@ -56,7 +56,7 @@ public class PortfolioLuceneServiceImpl implements PortfolioLuceneService {
             int totalCount = list.size();
             int perThreadCount = 3000;
             // 加1避免线程池的参数为0
-            int threadCount = totalCount / perThreadCount + (totalCount % perThreadCount == 0 ? 0 : 1) + 1;
+            int threadCount = totalCount / perThreadCount + (totalCount % perThreadCount == 0 ? 0 : 1);
             ExecutorService pool = Executors.newFixedThreadPool(threadCount);
             CountDownLatch countDownLatch1 = new CountDownLatch(1);
             CountDownLatch countDownLatch2 = new CountDownLatch(threadCount);

src/main/java/com/rymcu/forest/lucene/util/ArticleIndexUtil.java

@@ -1,7 +1,6 @@
 package com.rymcu.forest.lucene.util;
 
 import cn.hutool.core.io.FileUtil;
-import cn.hutool.core.util.StrUtil;
 import com.rymcu.forest.lucene.model.ArticleLucene;
 import org.apache.lucene.document.Document;
 import org.apache.lucene.document.Field;
@@ -12,6 +11,7 @@ import org.apache.lucene.index.Term;
 
 import java.io.IOException;
 import java.util.Arrays;
+import java.util.concurrent.locks.ReentrantLock;
 
 /**
  * 文章索引更新工具类
@@ -20,14 +20,15 @@ import java.util.Arrays;
  */
 public class ArticleIndexUtil {
 
-  /** lucene索引保存目录 */
+    /**
+     * lucene索引保存目录
+     */
     private static final String PATH =
-      System.getProperty("user.dir") + StrUtil.SLASH + LucenePath.ARTICLE_INDEX_PATH;
+            System.getProperty("user.dir") + LucenePath.ARTICLE_INDEX_PATH;
 
-  private static final String WINDOW_PATH =
+    /**
-          System.getProperty("user.dir") + StrUtil.BACKSLASH + "lucene\\index\\article";
+     * 删除所有运行中保存的索引
-
+     */
-  /** 删除所有运行中保存的索引 */
     public static void deleteAllIndex() {
         if (FileUtil.exist(LucenePath.ARTICLE_INCREMENT_INDEX_PATH)) {
             FileUtil.del(LucenePath.ARTICLE_INCREMENT_INDEX_PATH);
@@ -49,11 +50,17 @@ public class ArticleIndexUtil {
      * @param t
      * @throws Exception
      */
-  private static synchronized void creatIndex(ArticleLucene t) {
+    private static void creatIndex(ArticleLucene t) {
-    System.out.println("创建单个索引");
+        System.out.printf("创建单个索引");
         IndexWriter writer;
+        ReentrantLock reentrantLock = new ReentrantLock();
+        reentrantLock.lock();
         try {
-      writer = IndexUtil.getIndexWriter(LucenePath.ARTICLE_INCREMENT_INDEX_PATH, false);
+            boolean create = true;
+            if (FileUtil.exist(LucenePath.ARTICLE_INCREMENT_INDEX_PATH)) {
+                create = false;
+            }
+            writer = IndexUtil.getIndexWriter(LucenePath.ARTICLE_INCREMENT_INDEX_PATH, create);
             Document doc = new Document();
             doc.add(new StringField("id", t.getIdArticle() + "", Field.Store.YES));
             doc.add(new TextField("title", t.getArticleTitle(), Field.Store.YES));
@@ -62,24 +69,34 @@ public class ArticleIndexUtil {
             writer.close();
         } catch (IOException e) {
             e.printStackTrace();
+        } finally {
+            reentrantLock.unlock();
         }
     }
 
-  /** 删除单个索引 */
+    /**
-  public static synchronized void deleteIndex(Long id) {
+     * 删除单个索引
+     */
+    public static void deleteIndex(Long id) {
         Arrays.stream(FileUtil.ls(PATH))
                 .forEach(
                         each -> {
                             if (each.isDirectory()) {
                                 IndexWriter writer;
+                                ReentrantLock reentrantLock = new ReentrantLock();
+                                reentrantLock.lock();
                                 try {
                                     writer = IndexUtil.getIndexWriter(each.getAbsolutePath(), false);
                                     writer.deleteDocuments(new Term("id", String.valueOf(id)));
-                  writer.forceMergeDeletes(); // 强制删除
+                                    writer.forceMerge(1);
+                                    // 强制删除
+                                    writer.forceMergeDeletes();
                                     writer.commit();
                                     writer.close();
                                 } catch (IOException e) {
                                     e.printStackTrace();
+                                } finally {
+                                    reentrantLock.unlock();
                                 }
                             }
                         });

src/main/java/com/rymcu/forest/lucene/util/LucenePath.java

@@ -8,7 +8,7 @@ package com.rymcu.forest.lucene.util;
 public final class LucenePath {
 
   /** lucene 目录 */
-  public static final String INDEX_PATH = "lucene/index";
+  public static final String INDEX_PATH = "/lucene/index";
 
   /** 文章 lucene 目录 */
   public static final String ARTICLE_INDEX_PATH = INDEX_PATH + "/article";

src/main/java/com/rymcu/forest/service/impl/ArticleServiceImpl.java

@@ -1,8 +1,8 @@
 package com.rymcu.forest.service.impl;
 
 import com.rymcu.forest.core.constant.NotificationConstant;
-import com.rymcu.forest.core.exception.ContentNotExistException;
 import com.rymcu.forest.core.exception.BusinessException;
+import com.rymcu.forest.core.exception.ContentNotExistException;
 import com.rymcu.forest.core.exception.UltraViresException;
 import com.rymcu.forest.core.service.AbstractService;
 import com.rymcu.forest.dto.*;
@@ -10,26 +10,33 @@ import com.rymcu.forest.entity.Article;
 import com.rymcu.forest.entity.ArticleContent;
 import com.rymcu.forest.entity.Tag;
 import com.rymcu.forest.entity.User;
-import com.rymcu.forest.lucene.service.LuceneService;
+import com.rymcu.forest.handler.event.ArticleDeleteEvent;
+import com.rymcu.forest.handler.event.ArticleEvent;
 import com.rymcu.forest.mapper.ArticleMapper;
 import com.rymcu.forest.service.ArticleService;
 import com.rymcu.forest.service.NotificationService;
 import com.rymcu.forest.service.TagService;
 import com.rymcu.forest.service.UserService;
-import com.rymcu.forest.util.*;
+import com.rymcu.forest.util.Html2TextUtil;
+import com.rymcu.forest.util.UserUtils;
+import com.rymcu.forest.util.Utils;
+import com.rymcu.forest.util.XssUtils;
 import com.rymcu.forest.web.api.exception.BaseApiException;
 import com.rymcu.forest.web.api.exception.ErrorCode;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang.StringUtils;
 import org.apache.commons.text.StringEscapeUtils;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.context.ApplicationEventPublisher;
 import org.springframework.stereotype.Service;
 import org.springframework.transaction.annotation.Transactional;
 import tk.mybatis.mapper.entity.Condition;
 
 import javax.annotation.Resource;
 import java.io.UnsupportedEncodingException;
-import java.util.*;
+import java.util.Date;
+import java.util.List;
+import java.util.Objects;
 
 /**
  * @author ronger
@@ -45,9 +52,9 @@ public class ArticleServiceImpl extends AbstractService<Article> implements Arti
     @Resource
     private UserService userService;
     @Resource
-    private LuceneService luceneService;
-    @Resource
     private NotificationService notificationService;
+    @Resource
+    private ApplicationEventPublisher publisher;
 
     @Value("${resource.domain}")
     private String domain;
@@ -141,39 +148,16 @@ public class ArticleServiceImpl extends AbstractService<Article> implements Arti
             articleMapper.updateArticleContent(newArticle.getIdArticle(), articleContent, articleContentHtml);
         }
         Long newArticleId = newArticle.getIdArticle();
-        // 发送相关通知
-        if (DEFAULT_STATUS.equals(newArticle.getArticleStatus())) {
-            // 发送系统通知
-            if (notification) {
-                NotificationUtils.sendAnnouncement(newArticleId, NotificationConstant.Article, newArticle.getArticleTitle());
-            } else {
-                // 发送关注通知
-                StringBuilder dataSummary = new StringBuilder();
-                if (isUpdate) {
-                    dataSummary.append(user.getNickname()).append("更新了文章: ").append(newArticle.getArticleTitle());
-                    NotificationUtils.sendArticlePush(newArticleId, NotificationConstant.UpdateArticle, dataSummary.toString(), newArticle.getArticleAuthorId());
-                } else {
-                    dataSummary.append(user.getNickname()).append("发布了文章: ").append(newArticle.getArticleTitle());
-                    NotificationUtils.sendArticlePush(newArticleId, NotificationConstant.PostArticle, dataSummary.toString(), newArticle.getArticleAuthorId());
-                }
-            }
-            // 草稿不更新索引
-            if (isUpdate) {
-                log.info("更新文章索引，id={}", newArticleId);
-                luceneService.updateArticle(newArticleId);
-            } else {
-                log.info("写入文章索引，id={}", newArticleId);
-                luceneService.writeArticle(newArticleId);
-            }
         // 更新文章链接
+        if (DEFAULT_STATUS.equals(newArticle.getArticleStatus())) {
+            // 文章
             newArticle.setArticlePermalink(domain + "/article/" + newArticleId);
             newArticle.setArticleLink("/article/" + newArticleId);
         } else {
-            // 更新文章链接
+            // 草稿
             newArticle.setArticlePermalink(domain + "/draft/" + newArticleId);
             newArticle.setArticleLink("/draft/" + newArticleId);
         }
-        tagService.saveTagArticle(newArticle, articleContentHtml, user.getIdUser());
 
         if (StringUtils.isNotBlank(articleContentHtml)) {
             String previewContent = Html2TextUtil.getContent(articleContentHtml);
@@ -183,6 +167,12 @@ public class ArticleServiceImpl extends AbstractService<Article> implements Arti
             newArticle.setArticlePreviewContent(previewContent);
         }
         articleMapper.updateByPrimaryKeySelective(newArticle);
+        // 更新标签
+        tagService.saveTagArticle(newArticle, articleContentHtml, user.getIdUser());
+        if (DEFAULT_STATUS.equals(newArticle.getArticleStatus())) {
+            // 文章发布事件
+            publisher.publishEvent(new ArticleEvent(newArticleId, newArticle.getArticleTitle(), isUpdate, notification, user.getNickname(), newArticle.getArticleAuthorId()));
+        }
         return newArticleId;
     }
 
@@ -195,7 +185,9 @@ public class ArticleServiceImpl extends AbstractService<Article> implements Arti
             deleteLinkedData(id);
             // 删除文章
             int result = articleMapper.deleteByPrimaryKey(id);
-            luceneService.deleteArticle(id);
+            if (result > 0) {
+                publisher.publishEvent(new ArticleDeleteEvent(id));
+            }
             return result;
         } else {
             throw new BusinessException("已有评论的文章不允许删除!");

src/main/java/mapper/lucene/ArticleLuceneMapper.xml

@@ -35,7 +35,7 @@
         select art.id, art.article_title, content.article_content_html as article_content
         from forest_article art
                  join forest_article_content content on art.id = content.id_article
-        where article_status = 0;
+        where article_status = 0
     </select>
 
     <select id="getArticlesByIds" resultMap="DTOResultMap">
@@ -61,6 +61,6 @@
         from forest_article art
                  join forest_article_content content on art.id = content.id_article
         where article_status = 0
-        and id = #{id};
+        and id = #{id}
     </select>
 </mapper>

src/main/java/mapper/lucene/PortfolioLuceneMapper.xml

@@ -39,6 +39,6 @@
     <select id="getById" resultMap="BaseResultMap">
         SELECT id, portfolio_title, portfolio_description
         FROM forest_portfolio
-        where id = #{id};
+        where id = #{id}
     </select>
 </mapper>

src/main/java/mapper/lucene/UserLuceneMapper.xml

@@ -37,6 +37,6 @@
     <select id="getById" resultMap="BaseResultMap">
         SELECT id, nickname, signature
         FROM forest_user
-        where id = #{id};
+        where id = #{id}
     </select>
 </mapper>