Package org.apache.cassandra.spark.data

Class CassandraDataSourceHelper

java.lang.Object

org.apache.cassandra.spark.data.CassandraDataSourceHelper

public final class CassandraDataSourceHelper
extends java.lang.Object

A helper class for the CassandraBulkDataSource

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.String	CACHE_DATA_LAYER_KEY
static int	CACHE_HOURS

Method Summary

Modifier and Type	Method	Description
protected static CassandraDataLayer	createAndInitCassandraDataLayer(ClientConfig config, java.util.Map<java.lang.String,java.lang.String> options, java.util.function.BiConsumer<CassandraDataLayer,ClientConfig> initializeDataLayerFn, org.apache.spark.SparkConf conf)
protected static com.google.common.cache.Cache<java.util.Map<java.lang.String,java.lang.String>,CassandraDataLayer>	getCassandraDataLayerCache()
static DataLayer	getDataLayer(java.util.Map<java.lang.String,java.lang.String> options, java.util.function.BiConsumer<CassandraDataLayer,ClientConfig> initializeDataLayerFn)
protected static void	initCassandraDataSourceCache(com.google.common.base.Ticker ticker)	Builds and returns the Cache for the CassandraDataLayer instances with the provided ticker

Methods inherited from class java.lang.Object

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

Field Detail

CACHE_DATA_LAYER_KEY

public static final java.lang.String CACHE_DATA_LAYER_KEY

See Also:

Constant Field Values

CACHE_HOURS

public static final int CACHE_HOURS

See Also:

Constant Field Values

Method Detail

getDataLayer

public static DataLayer getDataLayer(java.util.Map<java.lang.String,java.lang.String> options,
                                     java.util.function.BiConsumer<CassandraDataLayer,ClientConfig> initializeDataLayerFn)

getCassandraDataLayerCache

protected static com.google.common.cache.Cache<java.util.Map<java.lang.String,java.lang.String>,CassandraDataLayer> getCassandraDataLayerCache()

initCassandraDataSourceCache

protected static void initCassandraDataSourceCache(com.google.common.base.Ticker ticker)

Builds and returns the Cache for the CassandraDataLayer instances with the provided ticker

Parameters:

ticker - the ticker to use for the cache

createAndInitCassandraDataLayer

protected static CassandraDataLayer createAndInitCassandraDataLayer(ClientConfig config,
                                                                    java.util.Map<java.lang.String,java.lang.String> options,
                                                                    java.util.function.BiConsumer<CassandraDataLayer,ClientConfig> initializeDataLayerFn,
                                                                    org.apache.spark.SparkConf conf)