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利用kettle中的JS来完成ETL数据校验

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11/28
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最近参与了一个信托行业的BI项目，由于信托业务系统设计的问题，很多都是用户手工录入的数据，也有一些是需要分析的但是用户没有录入的数据，针对这样的数据质量，我们就要在ETL抽取的过程中来对数据流进行校验，今天我们就说一下如何利用ETL开源工具kettle来完成对数据的基础性校验

1：非空校验 

if(INTRUST_FLAG1==null){intrust_flag1_isnull=;}

2：唯一校验 

var uniquesql_item_id = "SELECT count(*)  FROM titem where item_id="+ITEM_ID;

if(fireToDB(strConn,uniquesql_item_id)[[]==1）{item_id_isunique=;}

3：标准化校验 

var normalsql_intrust_type= "select  count(*) from  trust_tdictparam where type_id=1104 and type_value="+INTRUST_TYPE;
if(fireToDB(strConn, normalsql_intrust_type)[0][0]>0){intrust_type_isnormal=1;}

完整的JS处理逻辑展示如下 

var check_status=0;//如果检测到有任何一种校验错误，则check_status=1

var check_table="T_ITEM_TITEM";//校验有关的表名字，可能存在多个

var source_table="titem";//数据源表名称，如果数据来自多个数据表，则需要声明多个

var source_table_id="item_id";//数据源表主键，如果多个表联合主键，则需要声明多个主键

var check_detail="";//校验到的错误详细情况

var check_name="";//主键名称

var check_type="";//校验到的错误类型

var check_date=new Date();//校验时间

var strConn = "bjitic_og";

//////////////////////////////////定义所有校验枚举值////////////////////

//1：唯一性枚举值

var item_id_isunique=0;

var item_code_isunique=0;

var item_name_isunique=0;

//2:非空枚举值

var intrust_flag1_isnull=0;

var intrust_type_isnull=0;

var intrust_type_subitem_isnull=0;

var intrust_type1_isnull=0;

var intrust_type2_isnull=0;

var item_num_isnull=0;

var item_money_isnull=0;

var exp_rate1_isnull=0;

var exp_rate2_isnull=0;

var intrust_flag3_isnull=0;

var intrust_flag4_isnull=0;

var entity_type_isnull=0;

var deal_type_isnull=0;

var managertype_isnull=0;

var natrust_type_isnull=0;

var custodian_bank_isnull=0;

var with_bank_flag_isnull=0;

var with_security_flag_isnull=0;

var with_private_flag_isnull=0;

var with_gov_flag_isnull=0;

var ben_period_isnull=0;  

//3:标准化枚举值

var intrust_type_isnormal=0;

var intrust_type_subitem_isnormal=0;

var intrust_type1_isnormal=0;

var intrust_type2_isnormal=0;

var entity_type_isnormal=0;

var deal_type_isnormal=0;

var natrust_type_isnormal=0;

var custodian_bank_isnormal=0;

var innovat_type_isnormal=0;

var bank_id_isnormal=0;

var gov_regional_isnormal=0;

//4：类型校验枚举值

var ben_period_isnumber=0;

////////////////////////////////唯一性校验枚举值赋值

var uniquesql_item_id = "SELECT count(1)  FROM titem where item_id="+ITEM_ID;

var uniquesql_item_code = "SELECT count(1)  FROM titem where item_code="+ITEM_CODE;

var uniquesql_item_name = "SELECT count(1)  FROM titem where item_name="+"'"+ITEM_NAME+"'";

if(fireToDB(strConn,uniquesql_item_id)[0][0]==1){item_id_isunique=1;}

if(fireToDB(strConn,uniquesql_item_code)[0][0]==1){item_code_isunique=1;}

if(fireToDB(strConn,uniquesql_item_name)[0][0]==1){item_name_isunique=1;}

////////////////////////////////非空校验枚举值赋值

if(INTRUST_FLAG1==null){intrust_flag1_isnull=1;}

if(INTRUST_TYPE==null){intrust_type_isnull=1;}

if(INTRUST_TYPE_SUBITEM==null){intrust_type_subitem_isnull=1;}

if(INTRUST_TYPE1==null){intrust_type1_isnull=1;}

if(INTRUST_TYPE2==null){intrust_type2_isnull=1;}

if(ITEM_NUM==null){item_num_isnull=1;}

if(ITEM_MONEY==null){item_money_isnull=1;}

if(EXP_RATE1==null){exp_rate1_isnull=1;}

if(EXP_RATE2==null){exp_rate2_isnull=1;}

if(INTRUST_FLAG3==null){intrust_flag3_isnull=1;}

if(INTRUST_FLAG4==null){intrust_flag4_isnull=1;}

if(ENTITY_TYPE==null){entity_type_isnull=1;}

if(DEAL_TYPE==null){deal_type_isnull=1;}

if(MANAGERTYPE==null){managertype_isnull=1;}

if(NATRUST_TYPE==null){natrust_type_isnull=1;}

if(CUSTODIAN_BANK==null){custodian_bank_isnull=1;}

if(WITH_BANK_FLAG==null){with_bank_flag_isnull=1;}

if(WITH_SECURITY_FLAG==null){with_security_flag_isnull=1;}

if(WITH_PRIVATE_FLAG==null){with_private_flag_isnull=1;}

if(WITH_GOV_FLAG==null){with_gov_flag_isnull=1;}

if(BEN_PERIOD==null){ben_period_isnull=1;}

////////////////////////////////标准化校验枚举值赋值

var normalsql_intrust_type= "select  count(1) from  trust_tdictparam where type_id=1104 and type_value="+INTRUST_TYPE;

var normalsql_intrust_type_subitem= "select  count(1) from  trust_tdictparam where type_id=1151 and type_value="+INTRUST_TYPE_SUBITEM;

var normalsql_intrust_type1= "select  count(1) from  trust_tdictparam where type_id=1138 and type_value="+INTRUST_TYPE1;

var normalsql_intrust_type2= "select  count(1) from  trust_tdictparam where type_id=1139 and type_value="+INTRUST_TYPE2;

var normalsql_entity_type= "select  count(1) from  trust_tdictparam where type_id=1140 and type_value="+ENTITY_TYPE;

var normalsql_deal_type= "select  count(1) from  trust_tdictparam where type_id=1141 and type_value="+DEAL_TYPE;

var normalsql_natrust_type= "select  count(1) from  trust_tdictparam where type_id=1143 and type_value="+NATRUST_TYPE;

var normalsql_custodian_bank= "select  count(1) from  trust_tdictparam where type_id=1103 and type_value="+"'"+CUSTODIAN_BANK+"'";;

var normalsql_innovat_type= "select  count(1) from  trust_tdictparam where type_id=1104 and type_value="+INNOVAT_TYPE;

var normalsql_gov_regional= "select  count(1) from  trust_tdictparam where type_id=9999 and type_value="+GOV_PROV_REGIONAL;

if(fireToDB(strConn, normalsql_intrust_type)[0][0]>0){intrust_type_isnormal=1;}

if(fireToDB(strConn, normalsql_intrust_type_subitem)[0][0]>0){intrust_type_subitem_isnormal=1;}

if(fireToDB(strConn, normalsql_intrust_type1)[0][0]>0){intrust_type1_isnormal=1;}

if(fireToDB(strConn, normalsql_intrust_type2)[0][0]>0){intrust_type2_isnormal=1;}

if(fireToDB(strConn, normalsql_entity_type)[0][0]>0){entity_type_isnormal=1;}

if(fireToDB(strConn, normalsql_deal_type)[0][0]>0){deal_type_isnormal=1;}

if(fireToDB(strConn, normalsql_natrust_type)[0][0]>0){natrust_type_isnormal=1;}

if(fireToDB(strConn, normalsql_custodian_bank)[0][0]>0){custodian_bank_isnormal=1;}

if(fireToDB(strConn, normalsql_innovat_type)[0][0]>0){innovat_type_isnormal=1;}

if(fireToDB(strConn, normalsql_gov_regional)[0][0]>0){gov_regional_isnormal=1;}

////////////////////////////////数据类型校验枚举值赋值

if(isNum(BEN_PERIOD))

{

ben_period_isnumber=1;

}

//校验所有表需要校验的字段，如果有一个校验失败，则校验状态为1

if

(

item_id_isunique==0 || item_code_isunique==0 ||item_name_isunique==0|| //is unique

intrust_flag1_isnull==1 || intrust_type_isnull==1 || intrust_type_subitem_isnull==1 ||//is null

intrust_type1_isnull==1 || intrust_type2_isnull==1 || item_num_isnull==1 ||

item_money_isnull==1 || exp_rate1_isnull==1 || exp_rate2_isnull==1 ||

intrust_flag3_isnull==1 || intrust_flag4_isnull==1 || entity_type_isnull==1 ||

deal_type_isnull==1 || managertype_isnull==1 || natrust_type_isnull==1 ||

custodian_bank_isnull==1 || with_bank_flag_isnull==1 || with_security_flag_isnull==1 ||

with_private_flag_isnull==1 || with_gov_flag_isnull==1 || ben_period_isnull==1 ||

intrust_type_isnormal==0 || intrust_type_subitem_isnormal==0 || intrust_type1_isnormal==0 ||//is normal

intrust_type2_isnormal==0 || entity_type_isnormal==0 || deal_type_isnormal==0 ||

natrust_type_isnormal==0 || custodian_bank_isnormal==0 || innovat_type_isnormal==0 ||

bank_id_isnormal==0 || gov_regional_isnormal==0 ||

ben_period_isnumber==0//is number

)

{

check_status=1;

}

//check is unique? return not unique column

var isunique_column="";

if(item_id_isunique==0){isunique_column="item_id";}

if(item_code_isunique==0){if(isunique_column==""){isunique_column="item_code";}else{isunique_column=isunique_column+"、"+"item_code";}}

if(item_name_isunique==0){if(isunique_column==""){isunique_column="item_name";}else{isunique_column=isunique_column+"、"+"item_name";}}

//check is null? return null column

var isnull_column="";

if(intrust_flag1_isnull==1){isnull_column="intrust_flag1";}

if(intrust_type_isnull==1){if(isnull_column==""){isnull_column="intrust_type";}else{isnull_column=isnull_column+"、"+"intrust_type";}}

if(intrust_type_subitem_isnull==1){if(isnull_column==""){isnull_column="intrust_type_subitem";}else{isnull_column=isnull_column+"、"+"intrust_type_subitem";}}

if(intrust_type1_isnull==1){if(isnull_column==""){isnull_column="intrust_type1";}else{isnull_column=isnull_column+"、"+"intrust_type1";}}

if(intrust_type2_isnull==1){if(isnull_column==""){isnull_column="intrust_type2";}else{isnull_column=isnull_column+"、"+"intrust_type2";}}

if(item_num_isnull==1){if(isnull_column==""){isnull_column="item_num";}else{isnull_column=isnull_column+"、"+"item_num";}}

if(item_money_isnull==1){if(isnull_column==""){isnull_column="item_money";}else{isnull_column=isnull_column+"、"+"item_money";}}

if(exp_rate1_isnull==1){if(isnull_column==""){isnull_column="exp_rate1";}else{isnull_column=isnull_column+"、"+"exp_rate1";}}

if(exp_rate2_isnull==1){if(isnull_column==""){isnull_column="exp_rate2";}else{isnull_column=isnull_column+"、"+"exp_rate2";}}

if(intrust_flag3_isnull==1){if(isnull_column==""){isnull_column="intrust_flag3";}else{isnull_column=isnull_column+"、"+"intrust_flag3";}}

if(intrust_flag4_isnull==1){if(isnull_column==""){isnull_column="intrust_flag4";}else{isnull_column=isnull_column+"、"+"intrust_flag4";}}

if(entity_type_isnull==1){if(isnull_column==""){isnull_column="entity_type";}else{isnull_column=isnull_column+"、"+"entity_type";}}

if(deal_type_isnull==1){if(isnull_column==""){isnull_column="deal_type";}else{isnull_column=isnull_column+"、"+"deal_type";}}

if(managertype_isnull==1){if(isnull_column==""){isnull_column="managertype";}else{isnull_column=isnull_column+"、"+"managertype";}}

if(natrust_type_isnull==1){if(isnull_column==""){isnull_column="natrust_type";}else{isnull_column=isnull_column+"、"+"natrust_type";}}

if(custodian_bank_isnull==1){if(isnull_column==""){isnull_column="custodian_bank";}else{isnull_column=isnull_column+"、"+"custodian_bank";}}

if(with_bank_flag_isnull==1){if(isnull_column==""){isnull_column="with_bank_flag";}else{isnull_column=isnull_column+"、"+"with_bank_flag";}}

if(with_security_flag_isnull==1){if(isnull_column==""){isnull_column="with_security_flag";}else{isnull_column=isnull_column+"、"+"with_security_flag";}}

if(with_private_flag_isnull==1){if(isnull_column==""){isnull_column="with_private_flag";}else{isnull_column=isnull_column+"、"+"with_private_flag";}}

if(with_gov_flag_isnull==1){if(isnull_column==""){isnull_column="with_gov_flag";}else{isnull_column=isnull_column+"、"+"with_gov_flag";}}

if(ben_period_isnull==1){if(isnull_column==""){isnull_column="ben_period";}else{isnull_column=isnull_column+"、"+"ben_period";}}

//check is normal? return not normal column

var isnormal_column="";

if(intrust_type_isnormal==0){isnormal_column="intrust_type";}

if(intrust_type_subitem_isnormal==0){if(isnormal_column==""){isnormal_column="intrust_type_subitem";}else{isnormal_column=isnormal_column+"、"+"intrust_type_subitem";}}

if(intrust_type1_isnormal==0){if(isnormal_column==""){isnormal_column="intrust_type1";}else{isnormal_column=isnormal_column+"、"+"intrust_type1";}}

if(intrust_type2_isnormal==0){if(isnormal_column==""){isnormal_column="intrust_type2";}else{isnormal_column=isnormal_column+"、"+"intrust_type2";}}

if(entity_type_isnormal==0){if(isnormal_column==""){isnormal_column="entity_type";}else{isnormal_column=isnormal_column+"、"+"entity_type";}}

if(deal_type_isnormal==0){if(isnormal_column==""){isnormal_column="deal_type";}else{isnormal_column=isnormal_column+"、"+"deal_type";}}

if(natrust_type_isnormal==0){if(isnormal_column==""){isnormal_column="natrust_type";}else{isnormal_column=isnormal_column+"、"+"natrust_type";}}

if(custodian_bank_isnormal==0){if(isnormal_column==""){isnormal_column="custodian_bank";}else{isnormal_column=isnormal_column+"、"+"custodian_bank";}}

if(innovat_type_isnormal==0){if(isnormal_column==""){isnormal_column="iinnovat_type";}else{isnormal_column=isnormal_column+"、"+"innovat_type";}}

if(bank_id_isnormal==0){if(isnormal_column==""){isnormal_column="bank_id";}else{isnormal_column=isnormal_column+"、"+"bank_id";}}

if(gov_regional_isnormal==0){if(isnormal_column==""){isnormal_column="gov_regional";}else{isnormal_column=isnormal_column+"、"+"gov_regional";}}

//check is number? return not number column

var isnumber_column="";

if(ben_period_isnumber==0)

{

isnumber_column="ben_period";

}

//最终输出的错误详细情况

if(item_id_isunique==0 || item_code_isunique==0 ||item_name_isunique==0)

{

check_type="违反唯一规则";

check_detail="表"+source_table+"中，字段"+isunique_column+"违反了唯一规则";

}

if

(

intrust_flag1_isnull==1 || intrust_type_isnull==1 || intrust_type_subitem_isnull==1 ||

intrust_type1_isnull==1 || intrust_type2_isnull==1 || item_num_isnull==1 ||

item_money_isnull==1 || exp_rate1_isnull==1 || exp_rate2_isnull==1||

intrust_flag3_isnull==1 || intrust_flag4_isnull==1 || entity_type_isnull==1 ||

deal_type_isnull==1 || managertype_isnull==1 || natrust_type_isnull==1 ||

custodian_bank_isnull==1 || with_bank_flag_isnull==1 || with_security_flag_isnull==1 ||

with_private_flag_isnull==1 || with_gov_flag_isnull==1 || ben_period_isnull==1

)

{

  if(check_detail=="")

  {

   check_type="违反非空规则";

   check_detail="字段"+isnull_column+"违反了非空规则";

  }

  else

  {

  check_type=check_type+","+"违反非空规则";

  check_detail=check_detail+",字段"+isnull_column+"违反了非空规则";

  }

}

if

(

intrust_type_isnormal==0 || intrust_type_subitem_isnormal==0 || intrust_type1_isnormal==0 ||

intrust_type2_isnormal==0 || entity_type_isnormal==0 || deal_type_isnormal==0 ||

natrust_type_isnormal==0 || custodian_bank_isnormal==0 || innovat_type_isnormal==0 ||

bank_id_isnormal==0 || gov_regional_isnormal==0

)

{

  if(check_detail=="")

  {

   check_type="违反标准化规则";

   check_detail="字段"+isnormal_column+"违反了标准化规则";

  }

  else

  {

  check_type=check_type+","+"违反标准化规则";

  check_detail=check_detail+",字段"+isnormal_column+"违反了标准化规则";

  }

}

if(ben_period_isnumber==0)

{

  if(check_detail=="")

  {

   check_type="违反数据类型为数字规则";

   check_detail="字段"+isnumber_column+"违反了数据类型为数字规则";

  }

  else

  {

  check_type=check_type+","+"违反数据类型为数字规则";

  check_detail=check_detail+",字段"+isnumber_column+"违反了数据类型为数字规则";

  }

}

if(check_detail!="")

{

check_detail=check_detail+","+source_table_id+"="+ITEM_ID;

}

check_name=ITEM_NAME;

校验日志表结果：

输出关键性指标-表，那些字段违反了那些规则，时间

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