python怎么结合shell自动创建kafka的连接器

这篇"python怎么结合shell自动创建kafka的连接器"文章的知识点大部分人都不太理解，所以小编给大家总结了以下内容，内容详细，步骤清晰，具有一定的借鉴价值，希望大家阅读完这篇文章能有所收获，下面我们一起来看看这篇"python怎么结合shell自动创建kafka的连接器"文章吧。

环境

cat /etc/redhat-release CentOS Linux release 7.5.1804 (Core) [root@localhost ~]# uname -aLinux localhost.localdomain 3.10.0-862.el7.x86_64 #1 SMP Fri Apr 20 16:44:24 UTC 2018 x86_64 x86_64 x86_64 GNU/Linuxpython -VPython 2.7.5

安装连接oracle的python包

pip install cx_Oracle==7.3

获取oracle表信息

cat query_oracle.py #!/usr/bin/env pythonimport cx_Oracleimport sysimport osimport csvimport tracebackfile = open("oracle.txt", 'w').close()user = "test"passwd = "test"listener = '10.0.2.15:1521/orcl'conn = cx_Oracle.connect(user, passwd, listener)cursor = conn.cursor()sql = "select table_name from user_tables" cursor.execute(sql)LIST1=[]while True:    row = cursor.fetchone()    if row == None:        break    for table in row:        #print table        LIST1.append(table)LIST2=[]for i in LIST1:    sql3 = "select COLUMN_NAME,DATA_TYPE,DATA_PRECISION,DATA_SCALE from cols WHERE TABLE_name=upper('%s')" %i    cursor.execute(sql3)    cursor.execute(sql3)    row3 = cursor.fetchall()    for data in row3:        #LIST2.append(i)        LIST2.extend(list(data))    LIST2.append(i)    f=open('oracle.txt','a+')    print >> f,LIST2    LIST2=[]#f=open('test.txt','a+')#select table_name,column_name,DATA_TYPE from cols WHERE TABLE_name=upper('student'); #select column_name,DATA_TYPE from cols WHERE TABLE_name=upper('student');

去掉多余部分

cat auto.sh #!/bin/bash#python query_oracle.py |tr "," ' '|tr "'" ' '|tr "[" " "|tr "]" " "#>oracle.txt>oracle_tables.txtcat oracle.txt |tr "[],'" " "|sed "s#[ ][ ]*# #g"|sed 's/^[ \t]*//g' >> oracle_tables.txt

cat oracle_tables.txt SNO NUMBER 19 0 SNAME VARCHAR2 None None SSEX VARCHAR2 None None SBIRTHDAY DATE None None SCLASS VARCHAR2 None None STUDENT DATE_DATE SNO2 NUMBER 19 0 SNAME VARCHAR2 None None SSEX VARCHAR2 None None SBIRTHDAY DATE None None SCLASS VARCHAR2 None None STUDENT2 INPUT_TIMESNO3 NUMBER 19 2 SNAME VARCHAR2 None None SSEX VARCHAR2 None None SBIRTHDAY DATE None None SCLASS VARCHAR2 None None STUDENT3 DATA_DATE

shell 脚本处理表信息文件

cat connect.sh #!/bin/bash#获取临时文件的行数FILE_NUM=$(cat oracle_tables.txt |egrep -v '#|^$'|wc -l)#清空自动创建连接器的脚本>create-connect.sh#循环临时文件每一行for i in `seq $FILE_NUM`do     FILE_LINE=$(sed -n ${i}p oracle_tables.txt)    TABLE_NAME=$(echo ${FILE_LINE}|sed 's/[ \t]*$//g'|awk '{print $(NF-1)}')    COL_NUM=$(echo ${FILE_LINE}|sed 's/[ \t]*$//g'|awk -F "[ ]" '{print NF}')    REAL_COL_NUM=`expr $COL_NUM - 2`    #清空临时文件    >${TABLE_NAME}.txt    >${TABLE_NAME}.sql    #循环临时文件每行列名所在的列    for j in `seq 1 4 $REAL_COL_NUM`    do        k=`expr $j + 1`        m=`expr $j + 2`        n=`expr $j + 3`        COL_NAME=$(echo $FILE_LINE|cut -d " " -f${j})        COL_DATA_TYPE=$(echo $FILE_LINE|cut -d " " -f${k})        COL_DATA_PRECISION=$(echo $FILE_LINE|cut -d " " -f${m})        COL_DATA_SCALE=$(echo $FILE_LINE|cut -d " " -f${n})        #判断列的数据类型是否是NUMBER        if [ "$COL_DATA_TYPE" = "NUMBER" ]        then        #循环拼接SQL查询中的CAST(* AS *) AS *部分,追加到临时文件中            echo "CAST($COL_NAME AS $COL_DATA_TYPE($COL_DATA_PRECISION,$COL_DATA_SCALE)) AS $COL_NAME" >> ${TABLE_NAME}.txt        else        #循环拼接SQL查询中的列名部分，追加到临时文件中            echo "$COL_NAME" >> ${TABLE_NAME}.txt        fi    done    #拼接完整的SQL语句,追加到临时文件中    echo "select $(cat ${TABLE_NAME}.txt |tr "\n" ","|sed -e 's/,$/\n/') from $TABLE_NAME where $(sed -n ${i}p oracle_tables.txt|cut -d ' ' -f$COL_NUM)>=trunc(sysdate-2) and $(sed -n ${i}p oracle_tables.txt|cut -d ' ' -f$COL_NUM)> ${TABLE_NAME}.sql#循环追加每个表对应的连接器到自动创建连接器的脚本中cat >> create-connect.sh << EOFcurl -X POST http://localhost:8083/connectors -H "Content-Type: application/json" -d '{"name": "jdbc_source_$TABLE_NAME","config": {"connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector","connection.url": "jdbc:oracle:thin:@{{ ORACLE_IP }}:{{ ORACLE_PORT }}:orcl","connection.user": "{{ ORACLE_USER }}","connection.password": "{{ ORACLE_PASSWD }}","topic.prefix": "YC_$TABLE_NAME","mode": "{{ CONNECT_MODE }}","query": "$(cat ${TABLE_NAME}.sql)"}}' >/dev/null 2>&1EOFdone

说明：脚本中{{ 变量名 }}部分的内容是获取ansible中的变量，这个脚本是和ansible结合使用的。

增强版处理表信息脚本

#!/bin/bash#获取临时文件的行数FILE_NUM=$(cat oracle_time_tables.txt |egrep -v '#|^$'|wc -l)#清空创建连接器的脚本并追加echos函数> create-jdbc-connect.shcat >> create-jdbc-connect.sh << EOF#!/bin/bashechos(){case \$1 inred)    echo -e "\033[31m \$2 \033[0m";;green)  echo -e "\033[32m \$2 \033[0m";;yellow) echo -e "\033[33m \$2 \033[0m";;blue)   echo -e "\033[34m \$2 \033[0m";;purple) echo -e "\033[35m \$2 \033[0m";;*)      echo "\$2";;esac}EOF> create-jdbc-connect-time.shcat >> create-jdbc-connect-time.sh << EOF#!/bin/bashechos(){case \$1 inred)    echo -e "\033[31m \$2 \033[0m";;green)  echo -e "\033[32m \$2 \033[0m";;yellow) echo -e "\033[33m \$2 \033[0m";;blue)   echo -e "\033[34m \$2 \033[0m";;purple) echo -e "\033[35m \$2 \033[0m";;*)      echo "\$2";;esac}EOF#创建表相关文件目录mkdir -p ./TABLE_TIME#循环临时文件每一行for i in `seq $FILE_NUM`do     FILE_LINE=$(sed -n ${i}p oracle_time_tables.txt)    TABLE_NAME=$(echo ${FILE_LINE}|sed 's/[ \t]*$//g'|awk '{print $(NF)}')    COL_NUM=$(echo ${FILE_LINE}|sed 's/[ \t]*$//g'|awk -F "[ ]" '{print NF}')    REAL_COL_NUM=`expr $COL_NUM - 2`    #清空临时文件    >./TABLE_TIME/${TABLE_NAME}_time.txt    >./TABLE_TIME/${TABLE_NAME}_time.sql    >./TABLE_TIME/${TABLE_NAME}.sql    #循环临时文件每行列名所在的列    for j in `seq 1 4 $REAL_COL_NUM`    do        k=`expr $j + 1`        m=`expr $j + 2`        n=`expr $j + 3`        COL_NAME=$(echo $FILE_LINE|cut -d " " -f${j})        COL_DATA_TYPE=$(echo $FILE_LINE|cut -d " " -f${k})        COL_DATA_PRECISION=$(echo $FILE_LINE|cut -d " " -f${m})        COL_DATA_SCALE=$(echo $FILE_LINE|cut -d " " -f${n})        #判断列的数据类型是否是NUMBER        if [ "$COL_DATA_TYPE" = "NUMBER" ]        then        #循环拼接SQL查询中的CAST(* AS *) AS *部分,追加到临时文件中            echo "CAST($COL_NAME AS $COL_DATA_TYPE($COL_DATA_PRECISION,$COL_DATA_SCALE)) AS $COL_NAME" >> ./TABLE_TIME/${TABLE_NAME}_time.txt        else        #循环拼接SQL查询中的列名部分，追加到临时文件中            echo "$COL_NAME" >> ./TABLE_TIME/${TABLE_NAME}_time.txt        fi        #判断是否存在hosts中定义的时间列，如果有就追加该列名进一个临时文件中        TIME_COL=({{ TABLE_TIME_COL }})        for TIME in ${TIME_COL[@]}        do            if [ "$COL_NAME" = "$TIME" ]            then                echo "$COL_NAME" > ./TABLE_TIME/${TABLE_NAME}_TIME_COL.txt            fi        done    done    #拼接完整的SQL语句,追加到临时文件中    if [ -f "./TABLE_TIME/${TABLE_NAME}_TIME_COL.txt" ]    then    #echo "select $(cat ./TABLE_TIME/${TABLE_NAME}.txt |tr "\n" ","|sed -e 's/,$/\n/') from {{ ORACLE_TABLES_USER }}.$TABLE_NAME where $(sed -n ${i}p oracle_tables.txt|cut -d ' ' -f$COL_NUM)>=trunc(sysdate-2) and $(sed -n ${i}p oracle_tables.txt|cut -d ' ' -f$COL_NUM)> ./TABLE_TIME/${TABLE_NAME}_time.sql        echo "select $(cat ./TABLE_TIME/${TABLE_NAME}_time.txt |tr "\n" ","|sed -e 's/,$/\n/') from {{ ORACLE_TABLES_USER }}.$TABLE_NAME where $(cat ./TABLE_TIME/${TABLE_NAME}_TIME_COL.txt)>=trunc(sysdate-2) and $(cat ./TABLE_TIME/${TABLE_NAME}_TIME_COL.txt)> ./TABLE_TIME/${TABLE_NAME}_time.sql    else        echo "select $(cat ./TABLE_TIME/${TABLE_NAME}_time.txt |tr "\n" ","|sed -e 's/,$/\n/') from {{ ORACLE_TABLES_USER }}.$TABLE_NAME" >> ./TABLE_TIME/${TABLE_NAME}.sql    fi#循环追加每个表对应的连接器到自动创建连接器的脚本中if [ -f "./TABLE_TIME/${TABLE_NAME}_TIME_COL.txt" ]thencat >> create-jdbc-connect-time.sh << EOF#创建表 $TABLE_NAME 连接器的命令如下curl -X POST http://localhost:8083/connectors -H "Content-Type: application/json" -d '{"name": "jdbc_time_$TABLE_NAME","config": {"connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector","connection.url": "jdbc:oracle:thin:@{{ ORACLE_IP }}:{{ ORACLE_PORT }}:{{ ORACLE_SERVER_NAME }}","connection.user": "{{ ORACLE_USER }}","connection.password": "{{ ORACLE_PASSWD }}","topic.prefix": "YC_${TABLE_NAME}_INSERT","poll.interval.ms": "86400000","mode": "{{ CONNECT_MODE }}","numeric.mapping": "best_fit","query": "$(cat ./TABLE_TIME/${TABLE_NAME}_time.sql)"}}' >/dev/null 2>&1#判断连接器是否创建成功if [ \$? -eq 0 ]then    echos green "\$(date +"%F %H:%M:%S") 创建jdbc_time_${TABLE_NAME} 连接器成功"else    echos red "\$(date +"%F %H:%M:%S") 创建jdbc_time_${TABLE_NAME} 连接器失败"fiEOFelsecat >> create-jdbc-connect.sh << EOF#创建表 $TABLE_NAME 连接器的命令如下curl -X POST http://localhost:8083/connectors -H "Content-Type: application/json" -d '{"name": "jdbc_$TABLE_NAME","config": {"connector.class": "io.confluent.connect.jdbc.JdbcSourceConnector","connection.url": "jdbc:oracle:thin:@{{ ORACLE_IP }}:{{ ORACLE_PORT }}:{{ ORACLE_SERVER_NAME }}","connection.user": "{{ ORACLE_USER }}","connection.password": "{{ ORACLE_PASSWD }}","topic.prefix": "YC_${TABLE_NAME}_INSERT","poll.interval.ms": "86400000","mode": "{{ CONNECT_MODE }}","numeric.mapping": "best_fit","query": "$(cat ./TABLE_TIME/${TABLE_NAME}.sql)"}}' >/dev/null 2>&1#判断连接器是否创建成功if [ \$? -eq 0 ]then    echos green "\$(date +"%F %H:%M:%S") 创建jdbc_${TABLE_NAME} 连接器成功"else    echos red "\$(date +"%F %H:%M:%S") 创建jdbc_${TABLE_NAME} 连接器失败"fiEOFfidone

以上就是关于"python怎么结合shell自动创建kafka的连接器"这篇文章的内容，相信大家都有了一定的了解，希望小编分享的内容对大家有帮助，若想了解更多相关的知识内容，请关注行业资讯频道。