package tsdb.entity;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
import java.sql.Timestamp;
@Data
@AllArgsConstructor
@NoArgsConstructor
@ToString
public class JsonLineMsg {
    private Timestamp timeStamp; // 時(shí)間戳

    private String keyAndRuleData; // key value,key為根據(jù)規(guī)則表生成的唯一標(biāo)識(shí)，value為TCP解析出的對(duì)應(yīng)的數(shù)據(jù)。這個(gè)字段對(duì)應(yīng)數(shù)據(jù)庫中的Json類型字段，String類型進(jìn)入數(shù)據(jù)庫還需轉(zhuǎn)換為Json格式。
}

                 // 存儲(chǔ)一幀的所有key:value
                StringBuilder json = new StringBuilder();
                json.append("{");
                // frmLen 幀中信息個(gè)數(shù)
                for (int j = 0; j < frmLen; j++) {
                    StatRule stat = frm.getStat(j);
                    assert stat != null;
                    // 一條stat的key和value
                    int key = stat.getKey();
                    long value = System.nanoTime();
//                    String value = ParseStat.Parse(datas, stat);
                    json.append("\"");  // key左右必須加引號(hào)，key必為String類型
                    json.append(key);
                    json.append("\"");
                    json.append(":");
//                    json.append("\"");
                    json.append(value); // value左右不是必須加引號(hào)，若是String則加
//                    json.append("\"");
                    if ((j != statLen - 1)) {
                        json.append(",");
                    }
                }
                json.append("}");
                JsonLineMsg jsonLineMsg = new JsonLineMsg(new Timestamp(System.currentTimeMillis()), json.toString());

    <insert id="batchInsertJsonLineMsg"
            useGeneratedKeys="true" >
        insert into jsonlinemsg (timestamp ,keyandruledata ) values
        <foreach item="item" collection="list" separator="," close=";">
            (#{item.timeStamp},(#{item.keyAndRuleData})::json)
        </foreach>
    </insert>

  <select id="selectValueData" resultType="String">
        select keyandruledata::json ->>#{key}  from jsonlinemsg where timestamp = (#{time}::timestamp)
    </select>

// 獲取連接的方法，設(shè)置ExecutorType.BATCH以及關(guān)閉自動(dòng)提交
    public static SqlSession getSessionForBatch(String xmlPath, Properties properties) throws IOException {
        return MybatisUtil.getSqlSessionFactory(xmlPath, properties).openSession(ExecutorType.BATCH,false);
    }

    public void update(List<PropUrl> propUrlLst) throws IOException {
        // ExecutorType.BATCH
        try (SqlSession session = MybatisUtil.getSessionForBatch(myBatisConfigXmlPath)) {
            InitTsdbUrlTableMapper mapper = (InitTsdbUrlTableMapper) session.getMapper(mapperClazz);

            for (int i = 0; i < propUrlLst.size(); i++) {
                mapper.updatePropMatchRule(propUrlLst.get(i));
                // 每50次提交一次防止內(nèi)存溢出
                if ((i+1) % 50 == 0) {
                    session.commit();
                    session.clearCache();
                }
            }
            session.commit();
            session.clearCache();

            log.info("update successfully ->{}", propUrlLst);
        }
    }