Package org.apache.drill.exec.store.xml.xsd

Class DrillXSDSchemaUtils

java.lang.Object

org.apache.drill.exec.store.xml.xsd.DrillXSDSchemaUtils

public class DrillXSDSchemaUtils
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final com.google.common.collect.ImmutableMap<String,TypeProtos.MinorType>	XML_TYPE_MAPPINGS	This map maps the data types defined by the XSD definition to Drill data types.

Constructor Summary

Constructors

Constructor	Description
DrillXSDSchemaUtils()

Method Summary

Modifier and Type	Method	Description
static TypeProtos.MinorType	getDrillDataType(String xmlType)	Returns a TypeProtos.MinorType of the corresponding XML Data Type.
static TupleMetadata	getSchema(InputStream inputStream)	Returns a TupleMetadata of the schema from an XSD file from an InputStream.
static TupleMetadata	getSchema(String filename)	This function is only used for testing, but accepts a XSD file as input rather than a InputStream

Methods inherited from class java.lang.Object

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

Field Details

XML_TYPE_MAPPINGS

public static final com.google.common.collect.ImmutableMap<String,TypeProtos.MinorType> XML_TYPE_MAPPINGS

This map maps the data types defined by the XSD definition to Drill data types.

Constructor Details

DrillXSDSchemaUtils

public DrillXSDSchemaUtils()

Method Details

getSchema

public static TupleMetadata getSchema(String filename)
                               throws IOException

This function is only used for testing, but accepts a XSD file as input rather than a InputStream

Parameters:

filename - A String containing an XSD file.

Returns:

A TupleMetadata containing a Drill representation of the XSD schema.

Throws:

IOException - If anything goes wrong or the file is not found.

getSchema

public static TupleMetadata getSchema(InputStream inputStream)

Returns a TupleMetadata of the schema from an XSD file from an InputStream.

Parameters:

inputStream - A InputStream containing an XSD file.

Returns:

A TupleMetadata of the schema from the XSD file.

getDrillDataType

public static TypeProtos.MinorType getDrillDataType(String xmlType)

Returns a TypeProtos.MinorType of the corresponding XML Data Type. Defaults to VARCHAR if unknown

Parameters:

xmlType - A String of the XML Data Type

Returns:

A TypeProtos.MinorType of the Drill data type.