Apache spark Spark结构化流媒体中嵌套json对象的列数据
在我们的应用程序中,我们使用Spark sql获取字段值作为列。我正在尝试找出如何将列值放入嵌套的json对象并推送到Elasticsearch。还有一种方法可以参数化Apache spark Spark结构化流媒体中嵌套json对象的列数据,apache-spark,elasticsearch,spark-structured-streaming,Apache Spark,elasticsearch,Spark Structured Streaming,在我们的应用程序中,我们使用Spark sql获取字段值作为列。我正在尝试找出如何将列值放入嵌套的json对象并推送到Elasticsearch。还有一种方法可以参数化selectExpr中的值以传递给正则表达式吗 我们目前正在使用Spark Java API Dataset<Row> data = rowExtracted.selectExpr("split(value,\"[|]\")[0] as channelId", "split(value,
selectExpr
中的值以传递给正则表达式吗
我们目前正在使用Spark Java API
Dataset<Row> data = rowExtracted.selectExpr("split(value,\"[|]\")[0] as channelId",
"split(value,\"[|]\")[1] as country",
"split(value,\"[|]\")[2] as product",
"split(value,\"[|]\")[3] as sourceId",
"split(value,\"[|]\")[4] as systemId",
"split(value,\"[|]\")[5] as destinationId",
"split(value,\"[|]\")[6] as batchId",
"split(value,\"[|]\")[7] as orgId",
"split(value,\"[|]\")[8] as businessId",
"split(value,\"[|]\")[9] as orgAccountId",
"split(value,\"[|]\")[10] as orgBankCode",
"split(value,\"[|]\")[11] as beneAccountId",
"split(value,\"[|]\")[12] as beneBankId",
"split(value,\"[|]\")[13] as currencyCode",
"split(value,\"[|]\")[14] as amount",
"split(value,\"[|]\")[15] as processingDate",
"split(value,\"[|]\")[16] as status",
"split(value,\"[|]\")[17] as rejectCode",
"split(value,\"[|]\")[18] as stageId",
"split(value,\"[|]\")[19] as stageStatus",
"split(value,\"[|]\")[20] as stageUpdatedTime",
"split(value,\"[|]\")[21] as receivedTime",
"split(value,\"[|]\")[22] as sendTime"
);
实际产量:
{
"_index": "spark_index",
"_type": "doc",
"_id": "test123",
"_version": 1,
"_score": 1,
"_source": {
"channelId": "test",
"country": "SG",
"product": "test",
"sourceId": "",
"systemId": "test123",
"destinationId": "",
"batchId": "",
"orgId": "test",
"businessId": "test",
"orgAccountId": "test",
"orgBankCode": "",
"beneAccountId": "test",
"beneBankId": "test",
"currencyCode": "SGD",
"amount": "53.0000",
"processingDate": "",
"status": "Pending",
"rejectCode": "test",
"stageId": "123",
"stageStatus": "Comment",
"stageUpdatedTime": "2019-08-05 18:11:05.999000",
"receivedTime": "2019-08-05 18:10:12.701000",
"sendTime": "2019-08-05 18:11:06.003000"
}
}
我们需要节点“txn_summary”下的上述列,如以下json:
预期产出:
{
"_index": "spark_index",
"_type": "doc",
"_id": "test123",
"_version": 1,
"_score": 1,
"_source": {
"txn_summary": {
"channelId": "test",
"country": "SG",
"product": "test",
"sourceId": "",
"systemId": "test123",
"destinationId": "",
"batchId": "",
"orgId": "test",
"businessId": "test",
"orgAccountId": "test",
"orgBankCode": "",
"beneAccountId": "test",
"beneBankId": "test",
"currencyCode": "SGD",
"amount": "53.0000",
"processingDate": "",
"status": "Pending",
"rejectCode": "test",
"stageId": "123",
"stageStatus": "Comment",
"stageUpdatedTime": "2019-08-05 18:11:05.999000",
"receivedTime": "2019-08-05 18:10:12.701000",
"sendTime": "2019-08-05 18:11:06.003000"
}
}
}
将所有列添加到顶级结构应该会得到预期的输出。在Scala中:
import org.apache.spark.sql.functions_
data.select(struct(data.columns:*).as(“txn_summary”))
在Java中,我怀疑它是:
import org.apache.spark.sql.functions.struct;
选择(struct(data.columns()).as(“txn_summary”);
{
"_index": "spark_index",
"_type": "doc",
"_id": "test123",
"_version": 1,
"_score": 1,
"_source": {
"txn_summary": {
"channelId": "test",
"country": "SG",
"product": "test",
"sourceId": "",
"systemId": "test123",
"destinationId": "",
"batchId": "",
"orgId": "test",
"businessId": "test",
"orgAccountId": "test",
"orgBankCode": "",
"beneAccountId": "test",
"beneBankId": "test",
"currencyCode": "SGD",
"amount": "53.0000",
"processingDate": "",
"status": "Pending",
"rejectCode": "test",
"stageId": "123",
"stageStatus": "Comment",
"stageUpdatedTime": "2019-08-05 18:11:05.999000",
"receivedTime": "2019-08-05 18:10:12.701000",
"sendTime": "2019-08-05 18:11:06.003000"
}
}
}