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package com.aia.datasyc.perftest.service;

import com.aia.datasyc.perftest.util.DBUtils;
import com.aia.datasyc.perftest.util.FileUtils;
import com.alibaba.fastjson.JSONArray;
import lombok.extern.slf4j.Slf4j;

import java.io.*;
import java.sql.*;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.util.*;

@Slf4j
public class GenSqlStatement 


    //private static org.apache.logging.log4j.Logger log;
    //private Logger log = LoggerFactory.getLogger(this.getClass());

    static final String updateSrcFileSybase = "Sybase_UpdateSQL.sql";
    static final String sybaseImportantTables = "Sybase_Important_Tables.sql";
    static final String updateSrcFileSql = "SQLServer_UpdateSQL_DB__TYPE.sql";

    static final String fileName = "data" + File.separator + LocalDate.now() + File.separator
            + "SQLServer_UpdateSQL_DB__TYPE.sql";

    static final String getTablesSyb = "select distinct rr_source_table table_name from db_work.dbo.trr_provider_table_conf \\n" +
            "where rr_status ='Active' and rr_update_time > dateadd(day, -10, getdate())";
    static final String getTablesSql = "select distinct rr_table_name table_name from TABLE__NAME " +
            "where date_time > dateadd(day, -10, getdate())";

    static final String getColNameStr = "select 'TABLE__NAME' as table_name, name as col_name from DB__NAME.dbo.syscolumns where colid=2 and id = OBJECT_ID('TABLE__NAME')";
    static final String getUpdateStatementSyb = "update top 8 TABLE__NAME set COL__NAME = COL__NAME\\n";
    static final String getUpdateStatementSql = "update top (50) TABLE__NAME set COL__NAME = COL__NAME\\n";

    static final String existTableSql = "select name from DB_NAME.dbo.sysobjects where name ='TABLE_NAME'";

    public static void main(String[] args) throws Exception 

        genUpdateStatement();
    


    public static void genUpdateStatement() throws SQLException 

        System.out.println("********* Start to generate update sql statement ...");

        DBUtils dbUtils = new DBUtils();

        genUpdateStatementSybase(dbUtils);
        genUpdateStatementSqlServer(dbUtils, "Internal");
        genUpdateStatementSqlServer(dbUtils, "Batch");
        genUpdateStatementSqlServer(dbUtils, "External");

        processSybaseImportantTables(dbUtils);


        JudgeTableExistSybase(dbUtils, "Sybase");
        JudgeTableExistSqlServer(dbUtils, "Internal");
        JudgeTableExistSqlServer(dbUtils, "Batch");
        JudgeTableExistSqlServer(dbUtils, "External");


    


    public static void genUpdateStatementSybase(DBUtils dbUtils) 

        try (FileWriter fw = new FileWriter(fileName.replaceFirst("SQLServer", "Sybase").replaceFirst("_DB__TYPE", ""));) 

            //Get existing tables
            List<String> sqlList = FileUtils.getFile(updateSrcFileSybase);

            List<String> tableList = new ArrayList<>();
            StringBuilder updateList = new StringBuilder();
            String tableName = null;

            //filter duplication
            for (String str : sqlList) 

                int inx = str.indexOf(" set ");
                if ( inx > -1 ) 
                    tableName = str.substring(0, inx).replaceFirst("update top ", "").split(" ")[1];


                    if ( !tableList.contains(tableName) ) 
                        tableList.add(tableName);
//                        updateList.append("--" + str).append(System.lineSeparator());
                        updateList.append(str).append(System.lineSeparator());
                    
                 else 
                    updateList.append(str).append(System.lineSeparator());
                
            

//            for(String str: tableList)
//                System.out.println(str);
//            

            //Get tables from DB
            JSONArray tableListJson = dbUtils.getResultSetFromSybase(getTablesSyb);

            List<String> newTableList = new ArrayList<>();

            if ( tableListJson != null && tableListJson.size() > 0 ) 

                for (int i = 0; i < tableListJson.size(); i++) 
                    String tableNameDB = tableListJson.getJSONObject(i).getString("table_name");
                    boolean isExisting = false;
                    for (String str : tableList) 
                        if ( str.equals(tableNameDB) ) 
                            isExisting = true;
                            break;
                        
                    
                    if ( !isExisting ) 
                        newTableList.add(tableNameDB);
                    
                

            

            if ( newTableList != null && newTableList.size() > 0 ) 
                for (int j = 0; j < newTableList.size(); j++) 
                    System.out.println(newTableList.get(j));
                
                System.out.println("********* Sybase newTableList.size::" + newTableList.size());
             else 
                System.out.println("********* Sybase newTableList.size:: 0");
            


            //get column name of the new tables
            StringBuilder sbExecStatement = new StringBuilder();

            if ( newTableList != null && newTableList.size() > 0 ) 
                String tableNameNew = null;
                for (int i = 0; i < newTableList.size(); i++) 
                    tableNameNew = newTableList.get(i);
                    sbExecStatement.append("union ")
                            .append(getColNameStr.replaceAll("DB__NAME", tableNameNew.split("\\\\.")[0]).replaceAll("TABLE__NAME", tableNameNew))
                            .append(System.lineSeparator());
                

//            System.out.println("tableSB:::" + sbExecStatement.toString().replaceFirst("union ",""));

                JSONArray jsonArray = dbUtils.getResultSetFromSybase(sbExecStatement.toString().replaceFirst("union ", ""));

                //clean the content of sbExecStatement
                sbExecStatement.delete(0, sbExecStatement.length());

                //get the tables which has only one column --- begin
                if ( jsonArray != null && jsonArray.size() > 0 ) 
                    for (int i = 0; i < newTableList.size(); i++) 
                        boolean existing = false;
                        tableNameNew = newTableList.get(i);

                        for (int j = 0; j < jsonArray.size(); j++) 
                            if ( tableNameNew.equals(jsonArray.getJSONObject(j).getString("table_name")) ) 
                                existing = true;
                                break;
                            
                        

                        if ( !existing ) 
                            sbExecStatement.append("union ")
                                    .append(getColNameStr.replaceAll("DB__NAME", tableNameNew.split("\\\\.")[0])
                                            .replaceAll("TABLE__NAME", tableNameNew).replaceAll("colid=2", "colid=1"))
                                    .append(System.lineSeparator());
                        
                    
                

                //System.out.println(sbExecStatement.toString().replaceFirst("union ",""));

                //clean the content of sbExecStatement
                sbExecStatement.delete(0, sbExecStatement.length());

                if ( sbExecStatement != null && sbExecStatement.length() > 0 ) 

                    jsonArray.addAll(dbUtils.getResultSetFromSybase(sbExecStatement.toString().replaceFirst("union ", "")));
                
                //get the tables which has only one column --- end

                //update sql statements file
                if ( jsonArray != null && jsonArray.size() > 0 ) 

                    for (int i = 0; i < jsonArray.size(); i++) 
                        tableName = jsonArray.getJSONObject(i).getString("table_name");
                        String colName = jsonArray.getJSONObject(i).getString("col_name");

                        sbExecStatement.append(getUpdateStatementSyb.replaceAll("TABLE__NAME", tableName).replaceAll("COL__NAME", colName));

                    
                
            

            if ( sbExecStatement != null && sbExecStatement.length() > 0 ) 
                //appending new tables
                updateList.append(("--" + LocalDate.now() + System.lineSeparator())).append(sbExecStatement.toString());
            

            //System.out.println(updateStatement);
            fw.write(updateList.toString());
            fw.flush();
            fw.close();

         catch (Exception e) 
            e.printStackTrace();
        
    


    private static void genUpdateStatementSqlServer(DBUtils dbUtils, String dbType) 

        try (FileWriter fw = new FileWriter(fileName.replaceAll("DB__TYPE", dbType));) 

            //Get existing tables
            List<String> sqlList = FileUtils.getFile(updateSrcFileSql.replaceFirst("DB__TYPE", dbType));
            List<String> tableList = new ArrayList<>();
            StringBuilder updateList = new StringBuilder();
            String tableName = null;

            //filter duplication
            for (String str : sqlList) 

                int inx = str.indexOf(" set ");
                if ( inx > -1 ) 
                    tableName = str.substring(0, inx).replaceFirst("update top ", "").split(" ")[1];
                    String tableName1 = tableName;

                    if ( !tableList.contains(tableName) ) 
                        tableList.add(tableName);
                        updateList.append(str).append(System.lineSeparator());
                    

                 else 
                    updateList.append(str).append(System.lineSeparator());
                
            

            //Get tables from DB
            JSONArray tableListJson = dbUtils.getResultSetFromSQLServer(getTablesSql
                    .replaceFirst("TABLE__NAME", "db_work_" + dbType.substring(0, 1).toLowerCase() + ".dbo.trr_provider_"
                            + dbType.toLowerCase() + "_conf_sr"), dbType);


            List<String> newTableList = new ArrayList<>();

            if ( tableListJson != null && tableListJson.size() > 0 ) 

                for (int i = 0; i < tableListJson.size(); i++) 
                    String tableNameDB = tableListJson.getJSONObject(i).getString("table_name");
                    boolean isExisting = false;
                    for (String str : tableList) 
                        if ( str.equals(tableNameDB) ) 
                            isExisting = true;
                            break;
                        
                    
                    if ( !isExisting ) 
                        newTableList.add(tableNameDB);
                    
                

            

            if ( newTableList != null && newTableList.size() > 0 ) 
                for (int j = 0; j < newTableList.size(); j++) 
                    System.out.println(newTableList.get(j));
                
                System.out.println("********* SQLServer(" + dbType + ") newTableList.size::" + newTableList.size());
             else 
                System.out.println("********* SQLServer(" + dbType + ") newTableList.size:: 0");
            


            //get column name of the new tables
            StringBuilder sbExecStatement = new StringBuilder();

            if ( newTableList != null && newTableList.size() > 0 ) 
                String tableNameNew = null;
                for (int i = 0; i < newTableList.size(); i++) 
                    tableNameNew = newTableList.get(i);
                    sbExecStatement.append("union ")
                            .append(getColNameStr.replaceAll("DB__NAME", tableNameNew.split("\\\\.")[0]).replaceAll("TABLE__NAME", tableNameNew))
                            .append(System.lineSeparator());
                

//            System.out.println("sbExecStatement:::" + sbExecStatement.toString().replaceFirst("union ",""));

                JSONArray jsonArray = dbUtils.getResultSetFromSQLServer(sbExecStatement.toString().replaceFirst("union ", ""), dbType);

                //clean the content of sbExecStatement
                sbExecStatement.delete(0, sbExecStatement.length());

                //get the tables which has only one column --- begin
                if ( jsonArray != null && jsonArray.size() > 0 ) 

                    for (int i = 0; i < newTableList.size(); i++) 
                        boolean existing = false;
                        tableNameNew = newTableList.get(i);

                        for (int j = 0; j < jsonArray.size(); j++) 
                            if ( tableNameNew.equals(jsonArray.getJSONObject(j).getString("table_name")) ) 
                                existing = true;
                                break;
                            
                        

                        if ( !existing ) 
                            sbExecStatement.append("union ")
                                    .append(getColNameStr.replaceAll("DB__NAME", tableNameNew.split("\\\\.")[0])
                                            .replaceAll("TABLE__NAME", tableNameNew).replaceAll("colid=2", "colid=1"))
                                    .append(System.lineSeparator());
                        
                    
                

                //System.out.println(sbExecStatement.toString().replaceFirst("union ",""));

                //clean the content of sbExecStatement
                sbExecStatement.delete(0, sbExecStatement.length());

                if ( sbExecStatement != null && sbExecStatement.length() > 0 ) 

                    jsonArray.addAll(dbUtils.getResultSetFromSybase(sbExecStatement.toString().replaceFirst("union ", "")));
                
                //get the tables which has only one column --- end

                //update sql statements file
                if ( jsonArray != null && jsonArray.size() > 0 ) 

                    for (int i = 0; i < jsonArray.size(); i++) 
                        tableName = jsonArray.getJSONObject(i).getString("table_name");
                        String colName = jsonArray.getJSONObject(i).getString("col_name");

                        sbExecStatement.append(getUpdateStatementSql.replaceAll("TABLE__NAME", tableName).replaceAll("COL__NAME", colName));

                    
                
            

            if ( sbExecStatement != null && sbExecStatement.length() > 0 ) 
                //appending new tables
                updateList.append(("--" + LocalDate.now() + System.lineSeparator())).append(sbExecStatement.toString());
            

            //System.out.println(updateStatement);
            fw.write(updateList.toString());
            fw.flush();
            fw.close();

         catch (Exception e) 
            e.printStackTrace();
        
    


    public static void processSybaseImportantTables(DBUtils dbUtils) 

        String newFileName = fileName.replaceFirst("SQLServer", "Sybase").replaceFirst("_DB__TYPE", "");

        //System.out.println("newFileName:: " + newFileName);

        //Get tables update statements
        List<String> sqlList = FileUtils.getFile(newFileName);

        //get sql
        List<String> importantTableList = FileUtils.getFile(sybaseImportantTables);

        try (FileWriter fw = new FileWriter(newFileName);) 

            StringBuilder updateList = new StringBuilder();

            String tableName = null;

            //process important tables
            //for (String table : importantTableList) 
            for (String str : sqlList) 
                int inx = str.indexOf(" set ");
                if ( inx > -1 ) 
                    tableName = str.substring(0, inx).replaceFirst("update top ", "").split(" ")[1];

                    if ( importantTableList.contains(tableName) ) 
                        updateList.append("update top 20 " + tableName + str.substring(inx)).append(System.lineSeparator());
                        //System.out.println("update top 40 " + tableName + str.substring(inx));
                     else 
                        updateList.append(str).append(System.lineSeparator());
                    

                 else 
                    updateList.append(str).append(System.lineSeparator());
                
            

            //System.out.println(updateStatement);
            fw.write(updateList.toString());
            fw.flush();
            fw.close();

         catch (Exception e) 
            e.printStackTrace();
        
    

    public static void JudgeTableExistSybase(DBUtils dbUtils, String dbType) 
        String newFileName = fileName.replaceFirst("SQLServer", "Sybase").replaceFirst("_DB__TYPE", "");
        JudgeTableExist(dbUtils, dbType, newFileName);
    

    public static void JudgeTableExistSqlServer(DBUtils dbUtils, String dbType) 
        String newFileName = fileName.replaceAll("DB__TYPE", dbType);
        JudgeTableExist(dbUtils, dbType, newFileName);
    



    //    //Judge table exists
    public static List<JSONArray> checkTableExist(DBUtils dbUtils, String dbType, List<String> dbNameList, List<String> tableNameList) throws SQLException 

        StringBuilder sbSql = new StringBuilder();
        List<Object> list = new ArrayList<>();
        int i = 0;
        //每个db检查一遍
        for (String db : dbNameList) 
            for (String tb : tableNameList) 
                sbSql.append("select name from " + db + ".dbo.sysobjects where name =" + "'" + tb + "' ")
                        .append(" UNION ");
                i++;
                if ( i%250 == 0 )
                    list.add(new String(sbSql.substring(0,sbSql.length()-8)));
                    sbSql = null;
                

            
            list.add(new String(sbSql.substring(0,sbSql.length()-8)));//去掉最后的"UNION"
            List<JSONArray> oneDB = new ArrayList<>();

            for (Object sql:list)
                JSONArray rs = dbUtils.getResultSetFromSQLServer((String) sql, dbType);
                oneDB.add(rs);
            
//                JSONArray rs = dbUtils.getResultSetFromSQLServer(sbSql, dbType);
//                //保存每一个db中存在的table
                for (Object s : ) 
                    oneDB.add((String) s);
                
            List<JSONArray> allTable = new ArrayList<>();//保存所有db中存在的table

            for (JSONArray at: oneDB )
                allTable.add(at);
            
            return allTable;
        

        return null ;
    


    public static void JudgeTableExist(DBUtils dbUtils, String dbType, String newFileName) 

        //System.out.println("newFileName:: " + newFileName);

        //Get tables update statements
        List<String> sqlList = FileUtils.getFile(newFileName);


        try (FileWriter fw = new FileWriter(newFileName);) 

            StringBuilder updateList = new StringBuilder();

            //新建集合保存获取到的元素
            List<String> tableNameList = new ArrayList<>();
            List<String> dbNameList = new ArrayList<>();
            List<String> notExistTable = new ArrayList<>();
            for (String str : sqlList) 
                int inx = str.indexOf(" set ");
                if ( inx > -1 ) 
                    String tableFullName = str.substring(0, inx).replaceFirst("update top ", "").split(" ")[1];
                    String tableName = tableFullName.substring(tableFullName.lastIndexOf(".") + 1);
                    String dbName = tableFullName.substring(0, tableFullName.indexOf("."));
                    dbNameList.add(dbName);
                    tableNameList.add(tableName);
                
            
            System.out.println("startTime:"+LocalDateTime.now());
            List<JSONArray> existTableList = checkTableExist(dbUtils, dbType, dbNameList, tableNameList);
            System.out.println("endTime:"+LocalDateTime.now());

            for (String str : sqlList) 
                int inx = str.indexOf(" set ");
                if ( inx > -1 ) 
                    for (int i = 0; i < tableNameList.size(); i++) 
                        if ( !tableNameList.contains(existTableList) ) 
                            updateList.append("--table not exist ").append(str).append(System.lineSeparator());
                         else 
                            updateList.append(str).append(System.lineSeparator());
                        
                    

                
            
//            for (int i = 0; i < arrayList.size(); i += 500) 
//                if ( i + 500 > arrayList.size() )         //作用为toIndex最后没有500条数据则剩余为一组
//                    toIndex = arrayList.size() - i;
//                
//                List newList = arrayList.subList(i, i + toIndex);
//                map.put("keyName" + keyToken, newList);//newList.toString().substring(1, newList.size() )
//                keyToken++;
                System.out.println(map);
                System.out.println(map);
//            

//            String handleMap = map.values().toString().replaceAll("\\\\[|\\\\]", "");


//            for (String str : sqlList) 
//                int inx = str.indexOf(" set ");
//                if ( inx > -1 ) 
//                    String tableFullName = str.substring(0, inx).replaceFirst("update top ", "").split(" ")[1];
//                    String tableName = tableFullName.substring(tableFullName.lastIndexOf(".") + 1);
//                    String dbName = tableFullName.substring(0, tableFullName.indexOf("."));
//
//
//
//                    LocalDateTime startTime = LocalDateTime.now();
//                    System.out.println(" start time: " + startTime);
//                    //有问题
//                    for (int i = 0;i<notExistTable.size();i++)
//
//                    
//                    if ( notExistTable.contains(tableName) ) 
                        updateList.append(" update top 20 " + tableName + str.substring(inx)).append(System.lineSeparator());
//                        updateList.append("--table not exist ").append(str).append(System.lineSeparator());
//                        //System.out.println("update top 40 " + tableName + str.substring(inx));
//                     else 
//                        updateList.append(str).append(System.lineSeparator());
//                    
//
//                 else 
//                    updateList.append(str).append(System.lineSeparator());
//                
//
//                LocalDateTime endTime = LocalDateTime.now();
//                System.out.println(" End time: " + endTime);
//            

            //System.out.println(updateStatement);
            fw.write(updateList.toString());
            fw.flush();
            fw.close();

         catch (Exception e) 
            e.printStackTrace();
        
    


//    Judge table exists
//    public static HashMap<String, Integer> getTableList(DBUtils dbUtils, String dbType, String dbName) throws SQLException 
//        //DBUtils dbUtils = new DBUtils();
//        String dbStatement = "select name from " + dbName + "..sysobjects where type='U' order by name";
//        JSONArray rs = dbUtils.getResultSetFromSQLServer(dbStatement, dbType);
        ArrayList<String> arrayList = new ArrayList<>();
//        HashMap<String, Integer> addTable = new HashMap<>();
//        for (int i = 0;i<rs.size();i++)
//            addTable.put(rs.getString(i),i);
//        
//        return addTable;
//    

//    public boolean HasTable(String dbType,String tableName) 
//        //判断某一个表是否存在
//        boolean result = false;
//        try 
//            DBUtils dbUtils = new DBUtils();
//            dbUtils.openConn(dbType);
//
//            DatabaseMetaData meta = sqlConn.getMetaData();
//            ResultSet set = meta.getTables (null, null, tableName, null);
//            if (set.next()) 
//                result = true;
//            else 
//                result =false;
//            
//         catch (Exception eHasTable) 
//            System.err.println(eHasTable);
//            eHasTable.printStackTrace ();
//        
//        return result;
//    


//    public static boolean checkTableNull(DBUtils dbUtils, String dbType, String tableName) throws SQLException 
//        //DBUtils dbUtils = new DBUtils();
//        boolean result = false;
//        String dbStatement = "select * from " + tableName;
//        ResultSet rs = dbUtils.useConnection(dbType, dbStatement);
//        try
//        
//            if (rs.next())
//                result = true;
//            else 
//                result = false;
                log.info("false, cause: table is empty");
//            
//            return result;
//
//         catch (Exception e) 
//            e.printStackTrace();
//         finally 
//            dbUtils.closeConn();
//        
//        return Boolean.parseBoolean(null);
//    
//
//    //check table trigger
//    public static boolean checkTrigger(DBUtils dbUtils, String dbType, String tableName) throws SQLException 
//        //DBUtils dbUtils = new DBUtils();
//        boolean result = false;
//        String dbStatement = "select so2.name from sysobjects so1, sysobjects so2 where " +
//                "(so2.id = so1.deltrig or so2.id = so1.instrig or so2.id=so1.updtrig or so2.id=so1.seltrig) and so1.name in('" + tableName + "')";
//
//        ResultSet rs = dbUtils.useConnection(dbType,dbStatement);
//        try
//        
//
//            if ( rs.next())
//                result = true;
                log.info("trigger:" + sql);
//            else 
//                result = false;
                log.info("false, cause: no trigger");
//            
//            return result;
//
//         catch (Exception e) 
//            e.printStackTrace();
//         finally 
//            dbUtils.closeConn();
//        
//        return Boolean.parseBoolean(null);
//    



网上有个参考代码,但是我有点看不懂,你看看

StringBuffer addSql = new StringBuffer(10000);
            int batchSize = 300;
            int executeTime = 0;
            for (int i=0; i<trackIds.size(); i++) 
                if(i/batchSize > executeTime) //300轮执行一次SQL)
                    String sql = addSql.substring(0, addSql.length() - 1);
                    baseJdbcDao.exceute(sql, null);
                    executeTime++;//执行次数++
                
                if(i%batchSize == 0) //50轮重新拼接SQL(防止SQL过长)
                    addSql = addSql.delete(0, addSql.length());
                    addSql.append("insert into " + DatabaseConstants.BASE + ".yk_behavior_monitor (TRACK_ID, PROGRAM_ID, " +
                            "BEHAVIOR_ID, ACTION_TOTAL, ACTION_COMPLETED, CREATED_BY, CREATED_DATE, LAST_UPDATED_BY, LAST_UPDATED_DATE, REMOVE_FLAG) values");
                
                for (Integer behaviorId : behaviorIds) 
                    addSql.append("(");
                    addSql.append(trackIds.get(i) + ",");
                    addSql.append(programId + ",");
                    addSql.append(behaviorId + ",");
                    addSql.append("0,0,");
                    addSql.append(user.getUserId() + ",");
                    addSql.append("'" + sdf.format(new Date()) + "',");
                    addSql.append(user.getUserId() + ",");
                    addSql.append("'" + sdf.format(new Date()) + "',");
                    addSql.append("0),");
                
            

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