admin
2022-04-16 04f09e52ffd4681bdfd85e51acd3da0d1280c3d3
src/main/java/com/yeshi/buwan/service/imp/ClearService.java
@@ -1,25 +1,25 @@
package com.yeshi.buwan.service.imp;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.annotation.Resource;
import com.yeshi.buwan.dao.CategoryVideoDao;
import com.yeshi.buwan.dao.VideoInfoDao;
import com.yeshi.buwan.domain.CategoryVideo;
import com.yeshi.buwan.domain.VideoDetailInfo;
import com.yeshi.buwan.dto.mq.VideoDataChangeMQMsg;
import com.yeshi.buwan.service.imp.juhe.IqiyiService;
import com.yeshi.buwan.util.StringUtil;
import com.yeshi.buwan.util.TimeUtil;
import com.yeshi.buwan.util.mq.CMQManager;
import net.sf.json.JSONObject;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.springframework.orm.hibernate4.HibernateCallback;
import org.springframework.stereotype.Service;
import com.fasterxml.jackson.databind.util.BeanUtil;
import com.yeshi.buwan.dao.VideoInfoDao;
import com.yeshi.buwan.domain.VideoDetailInfo;
import com.yeshi.buwan.service.imp.juhe.IqiyiService;
import com.yeshi.buwan.util.StringUtil;
import com.yeshi.buwan.util.TimeUtil;
import net.sf.json.JSONObject;
import javax.annotation.Resource;
import java.math.BigInteger;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
//清除数据库中的死数据
@Service
@@ -35,6 +35,36 @@
    @Resource
    private VideoInfoDao videoInfoDao;
    @Resource
    private CategoryVideoDao categoryVideoDao;
    /**
     * @return void
     * @author hxh
     * @description 删除老旧数据
     * @date 16:49 2022/3/18
     * @param: typeId
     * @param: leftNumber 留下的数量
     **/
    public void clearOldVideo(long typeId, int leftNumber) {
        Long minCreateTime = categoryVideoDao.getHibernateTemplate().execute(new HibernateCallback<Long>() {
            @Override
            public Long doInHibernate(Session session) throws HibernateException {
                Object result = session.createSQLQuery("SELECT v.`createtime` FROM wk_category_video cv  LEFT JOIN wk_video_video v ON v.`id`=cv.`videoid` WHERE cv.`videotypeid`=? ORDER BY cv.`id` DESC LIMIT ?,1").setParameter(0, typeId).setParameter(1, leftNumber).uniqueResult();
                if (result == null) {
                    return null;
                }
                return Long.parseLong(result.toString());
            }
        });
        if (minCreateTime == null) {
            return;
        }
        clearVideos(new long[]{typeId}, TimeUtil.getGernalTime(minCreateTime, "yyyy-MM-dd"));
    }
    @SuppressWarnings("rawtypes")
    public void clearVideos(long[] ls, String date) {
        final List<JSONObject> list = new ArrayList<>();
@@ -49,31 +79,57 @@
        videoInfoDao.excute(new HibernateCallback() {
            public Object doInHibernate(Session session) throws HibernateException {
                for (JSONObject item : list) {
                    List list = session
                    Object result = session
                            .createSQLQuery(String.format(
                                    "SELECT cv.`videoid` FROM wk_category_video cv LEFT JOIN wk_video_video v ON v.`id`=cv.`videoid` WHERE cv.`videotypeid`=%s  AND v.`createtime`<%s",
                                    "SELECT count(*) FROM wk_category_video cv LEFT JOIN wk_video_video v ON v.`id`=cv.`videoid` WHERE cv.`videotypeid`=%s  AND v.`createtime`<%s",
                                    item.getLong("videotype"), item.getLong("time")))
                            .setFirstResult(0).setMaxResults(1000).list();
                    session.getTransaction().begin();
                    if (list != null) {
                        int pagecount = 50;
                        int pages = list.size() % pagecount == 0 ? list.size() / pagecount
                                : list.size() / pagecount + 1;
                        for (int i = 0; i < pages; i++) {
                            String where = "";
                            for (int p = 0; p < pagecount; p++) {
                                int pos = i * pagecount + p;
                                pos = pos >= list.size() ? list.size() - 1 : pos;
                                where += String.format("id=%s or ", list.get(pos) + "");
                            }
                            if (where.endsWith("or "))
                                where = where.substring(0, where.length() - 3);
                            session.createSQLQuery("delete from wk_video_video where " + where).executeUpdate();
                        }
                            .uniqueResult();
                    int totalCount = Integer.parseInt(result.toString());
                    if (totalCount <= 0) {
                        return null;
                    }
                    session.flush();
                    session.getTransaction().commit();
                    int BETCH_SIZE = 1000;
                    int page = totalCount / BETCH_SIZE + 1;
                    for (int n = 0; n < page; n++) {
                        List list = session
                                .createSQLQuery(String.format(
                                        "SELECT cv.id,cv.videoid FROM wk_category_video cv LEFT JOIN wk_video_video v ON v.`id`=cv.`videoid` WHERE cv.`videotypeid`=%s  AND v.`createtime`<%s",
                                        item.getLong("videotype"), item.getLong("time")))
                                .setFirstResult(0).setMaxResults(BETCH_SIZE).list();
                        session.getTransaction().begin();
                        if (list != null) {
                            int pagecount = 50;
                            int pages = list.size() % pagecount == 0 ? list.size() / pagecount
                                    : list.size() / pagecount + 1;
                            for (int i = 0; i < pages; i++) {
                                String ors = "";
                                String cvors = "";
                                List<String> videoIds = new ArrayList<>();
                                for (int p = 0; p < pagecount; p++) {
                                    int pos = i * pagecount + p;
                                    pos = pos >= list.size() ? list.size() - 1 : pos;
                                    ors += String.format("id=%s or ", ((Object[]) list.get(pos))[1] + "");
                                    cvors += String.format("id=%s or ", ((Object[]) list.get(pos))[0] + "");
                                    videoIds.add(((Object[]) list.get(pos))[1] + "");
                                }
                                if (ors.endsWith("or "))
                                    ors = ors.substring(0, ors.length() - 3);
                                if (cvors.endsWith("or "))
                                    cvors = cvors.substring(0, cvors.length() - 3);
                                session.createSQLQuery("delete from wk_video_video where " + ors).executeUpdate();
                                session.createSQLQuery("delete from wk_category_video where " + cvors).executeUpdate();
                                if (videoIds.size() > 0) {
                                    CMQManager.getInstance().addVideoDataChanged(new VideoDataChangeMQMsg(VideoDataChangeMQMsg.TYPE_VIDEO_INFO, org.yeshi.utils.StringUtil.concat(videoIds, ","), VideoDataChangeMQMsg.ACTION_DELETE));
                                }
                            }
                        }
                        session.flush();
                        session.getTransaction().commit();
                    }
                }
                return null;
            }
@@ -84,15 +140,33 @@
    // 清楚依赖VideoInfo的数据
    @SuppressWarnings("rawtypes")
    public void clearDependVideo() {
        for (String table : videoTables) {
            final String sql = String.format(
                    "SELECT vv.id FROM `%s` vv LEFT JOIN wk_video_video v ON v.`id`=vv.`videoid` WHERE v.`id` IS NULL",
                    table);
            Object obj = videoInfoDao.excute(new HibernateCallback() {
            clearDependVideoByTable(table);
        }
    }
    public void clearDependVideoByTable(String table) {
        final String sql = String.format(
                "SELECT vv.id FROM `%s` vv LEFT JOIN wk_video_video v ON v.`id`=vv.`videoid` WHERE v.`id` IS NULL",
                table);
        final String countSql = String.format(
                "SELECT count(*) FROM `%s` vv LEFT JOIN wk_video_video v ON v.`id`=vv.`videoid` WHERE v.`id` IS NULL",
                table);
        Object obj = videoInfoDao.excute(new HibernateCallback() {
            public Object doInHibernate(Session session) throws HibernateException {
                return session.createSQLQuery(countSql).uniqueResult();
            }
        });
        int count = Integer.parseInt(obj.toString());
        int pageSize = 1000;
        int page = count / pageSize + 1;
        for (int p = 0; p < page; p++) {
            obj = videoInfoDao.excute(new HibernateCallback() {
                public Object doInHibernate(Session session) throws HibernateException {
                    return session.createSQLQuery(sql).setFirstResult(0).setMaxResults(1000).list();
                    return session.createSQLQuery(sql).setFirstResult(0).setMaxResults(pageSize).list();
                }
            });
@@ -126,7 +200,6 @@
                }
            }
        }
    }