water.parser.avro

Class AvroUtil

java.lang.Object

water.parser.avro.AvroUtil

public final class AvroUtil
extends java.lang.Object

Utilities to work with Avro schema.

Constructor Summary

Constructors

Constructor and Description
AvroUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static org.apache.avro.Schema.Field[]	flatSchema(org.apache.avro.Schema s) The method "flattenize" the given Avro schema.
static boolean	isSupportedSchema(org.apache.avro.Schema s) Return true if the given schema can be transformed into h2o type.
static byte	schemaToColumnType(org.apache.avro.Schema s) Transform Avro schema into H2O type.
static org.apache.avro.Schema.Type	toPrimitiveType(org.apache.avro.Schema s) Transform Avro schema into its primitive representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

AvroUtil

public AvroUtil()

Method Detail

isSupportedSchema

public static boolean isSupportedSchema(org.apache.avro.Schema s)

Return true if the given schema can be transformed into h2o type.

Parameters:

s - avro field schema

Returns:

true if the schema can be transformed into H2O type

schemaToColumnType

public static byte schemaToColumnType(org.apache.avro.Schema s)

Transform Avro schema into H2O type.

Parameters:

s - avro schema

Returns:

a byte representing H2O column type

Throws:

java.lang.IllegalArgumentException - if schema is not supported

toPrimitiveType

public static org.apache.avro.Schema.Type toPrimitiveType(org.apache.avro.Schema s)

Transform Avro schema into its primitive representation.

Parameters:

s - avro schema

Returns:

primitive type as a result of transformation

Throws:

java.lang.IllegalArgumentException - if the schema has no primitive transformation

flatSchema

public static org.apache.avro.Schema.Field[] flatSchema(org.apache.avro.Schema s)

The method "flattenize" the given Avro schema.

Parameters:

s - Avro schema

Returns:

List of supported fields which were extracted from original Schema