org.apache.drill.exec.store.kudu

Class KuduStoragePlugin

java.lang.Object

org.apache.drill.exec.store.AbstractStoragePlugin

org.apache.drill.exec.store.kudu.KuduStoragePlugin

All Implemented Interfaces:

AutoCloseable, SchemaFactory, StoragePlugin

public class KuduStoragePlugin
extends AbstractStoragePlugin

Field Summary

Fields inherited from class org.apache.drill.exec.store.AbstractStoragePlugin

context

Fields inherited from interface org.apache.drill.exec.store.SchemaFactory

DEFAULT_WS_NAME

Constructor Summary

Constructors

Constructor and Description
KuduStoragePlugin(KuduStoragePluginConfig configuration, DrillbitContext context, String name)

Method Summary

Modifier and Type	Method and Description
void	close()
org.apache.kudu.client.KuduClient	getClient()
KuduStoragePluginConfig	getConfig() Method returns a Jackson serializable object that extends a StoragePluginConfig.
KuduGroupScan	getPhysicalScan(String userName, JSONOptions selection) Get the physical scan operator for the particular GroupScan (read) node.
void	registerSchemas(SchemaConfig schemaConfig, org.apache.calcite.schema.SchemaPlus parent) Register the schemas provided by this SchemaFactory implementation under the given parent schema.
boolean	supportsRead() Indicates if Drill can read the table from this format.
boolean	supportsWrite() Indicates if Drill can write a table to this format (e.g.

Methods inherited from class org.apache.drill.exec.store.AbstractStoragePlugin

getContext, getFormatPlugin, getLogicalOptimizerRules, getName, getOptimizerRules, getOptimizerRules, getPhysicalOptimizerRules, getPhysicalScan, getPhysicalScan, getPhysicalScan, getPhysicalScan, getPhysicalScan, start

Methods inherited from class java.lang.Object

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

Constructor Detail

KuduStoragePlugin

public KuduStoragePlugin(KuduStoragePluginConfig configuration,
                         DrillbitContext context,
                         String name)
                  throws IOException

Throws:

IOException

Method Detail

getClient

public org.apache.kudu.client.KuduClient getClient()

close

public void close()
           throws Exception

Specified by:

close in interface AutoCloseable

Overrides:

close in class AbstractStoragePlugin

Throws:

Exception

supportsRead

public boolean supportsRead()

Description copied from interface: StoragePlugin

Indicates if Drill can read the table from this format.

Specified by:

supportsRead in interface StoragePlugin

Overrides:

supportsRead in class AbstractStoragePlugin

getPhysicalScan

public KuduGroupScan getPhysicalScan(String userName,
                                     JSONOptions selection)
                              throws IOException

Description copied from interface: StoragePlugin

Get the physical scan operator for the particular GroupScan (read) node.

Specified by:

getPhysicalScan in interface StoragePlugin

Overrides:

getPhysicalScan in class AbstractStoragePlugin

Parameters:

userName - User whom to impersonate when when reading the contents as part of Scan.

selection - The configured storage engine specific selection.

Returns:

The physical scan operator for the particular GroupScan (read) node.

Throws:

IOException

supportsWrite

public boolean supportsWrite()

Description copied from interface: StoragePlugin

Indicates if Drill can write a table to this format (e.g. as JSON, csv, etc.).

Specified by:

supportsWrite in interface StoragePlugin

Overrides:

supportsWrite in class AbstractStoragePlugin

registerSchemas

public void registerSchemas(SchemaConfig schemaConfig,
                            org.apache.calcite.schema.SchemaPlus parent)
                     throws IOException

Description copied from interface: SchemaFactory

Register the schemas provided by this SchemaFactory implementation under the given parent schema.

Parameters:

schemaConfig - Configuration for schema objects.

parent - Reference to parent schema.

Throws:

IOException - in case of error during schema registration

getConfig

public KuduStoragePluginConfig getConfig()

Description copied from interface: StoragePlugin

Method returns a Jackson serializable object that extends a StoragePluginConfig.

Returns:

an extension of StoragePluginConfig