com.amazonaws.athena.connectors.jdbc.MultiplexingJdbcCompositeHandler Maven / Gradle / Ivy
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* Copyright (C) 2019 - 2023 Amazon Web Services
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package com.amazonaws.athena.connectors.jdbc;
import com.amazonaws.athena.connector.lambda.handlers.CompositeHandler;
import com.amazonaws.athena.connectors.jdbc.manager.JdbcMetadataHandler;
import com.amazonaws.athena.connectors.jdbc.manager.JdbcRecordHandler;
/**
* Boilerplate composite handler that allows us to use a single Lambda function for both
* Metadata and Data.
* Automatically chooses to use either the Mux*Handlers or normal *Handlers
* depending on if catalog connection strings are being used.
*/
public class MultiplexingJdbcCompositeHandler
extends CompositeHandler
{
private static final boolean hasCatalogConnections = System.getenv().keySet().stream().anyMatch(k ->
k.endsWith(com.amazonaws.athena.connectors.jdbc.connection.DatabaseConnectionConfigBuilder.CONNECTION_STRING_PROPERTY_SUFFIX));
public MultiplexingJdbcCompositeHandler(
Class muxMetadataHandlerClass,
Class muxRecordHandlerClass,
Class metadataHandlerClass,
Class recordHandlerClass) throws java.lang.ReflectiveOperationException
{
super(
hasCatalogConnections ?
muxMetadataHandlerClass.getConstructor(java.util.Map.class).newInstance(System.getenv()) :
metadataHandlerClass.getConstructor(java.util.Map.class).newInstance(System.getenv()),
hasCatalogConnections ?
muxRecordHandlerClass.getConstructor(java.util.Map.class).newInstance(System.getenv()) :
recordHandlerClass.getConstructor(java.util.Map.class).newInstance(System.getenv()));
}
}