Package com.amazonaws.athena.connectors.hbase

Class HbaseRecordHandler

java.lang.Object

com.amazonaws.athena.connector.lambda.handlers.RecordHandler

com.amazonaws.athena.connectors.hbase.HbaseRecordHandler

All Implemented Interfaces:

com.amazonaws.services.lambda.runtime.RequestStreamHandler

public class HbaseRecordHandler
extends RecordHandler

Handles data read record requests for the Athena HBase Connector.

For more detail, please see the module's README.md, some notable characteristics of this class include:

1. Supporting String and native 'byte[]' storage. 2. Attempts to resolve sensitive configuration fields such as HBase connection string via SecretsManager so that you can substitute variables with values from by doing something like hostname:port:password=${my_secret}

Field Summary

Fields inherited from class com.amazonaws.athena.connector.lambda.handlers.RecordHandler

configOptions

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HbaseRecordHandler(com.amazonaws.services.s3.AmazonS3 amazonS3, com.amazonaws.services.secretsmanager.AWSSecretsManager secretsManager, com.amazonaws.services.athena.AmazonAthena athena, HbaseConnectionFactory connectionFactory, Map<String,String> configOptions)
	HbaseRecordHandler(Map<String,String> configOptions)

Method Summary

Modifier and Type	Method	Description
protected void	readWithConstraint(BlockSpiller blockSpiller, ReadRecordsRequest request, QueryStatusChecker queryStatusChecker)	Scans HBase using the scan settings set on the requested Split by HbaseMetadataHandler.

Methods inherited from class com.amazonaws.athena.connector.lambda.handlers.RecordHandler

doHandleRequest, doReadRecords, getSecret, getSpillConfig, handleRequest, onPing, resolveSecrets

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

HbaseRecordHandler

public HbaseRecordHandler(Map<String,String> configOptions)

HbaseRecordHandler

protected HbaseRecordHandler(com.amazonaws.services.s3.AmazonS3 amazonS3,
                             com.amazonaws.services.secretsmanager.AWSSecretsManager secretsManager,
                             com.amazonaws.services.athena.AmazonAthena athena,
                             HbaseConnectionFactory connectionFactory,
                             Map<String,String> configOptions)

Method Detail

readWithConstraint

protected void readWithConstraint(BlockSpiller blockSpiller,
                                  ReadRecordsRequest request,
                                  QueryStatusChecker queryStatusChecker)
                           throws IOException

Scans HBase using the scan settings set on the requested Split by HbaseMetadataHandler.

Specified by:

readWithConstraint in class RecordHandler

Parameters:

blockSpiller - A BlockSpiller that should be used to write the row data associated with this Split. The BlockSpiller automatically handles chunking the response, encrypting, and spilling to S3.

request - Details of the read request, including: 1. The Split 2. The Catalog, Database, and Table the read request is for. 3. The filtering predicate (if any) 4. The columns required for projection.

queryStatusChecker - A QueryStatusChecker that you can use to stop doing work for a query that has already terminated

Throws:

IOException

See Also:

RecordHandler