org.apache.druid.catalog.model.table

Class InputFormats.DelimitedFormatDefn

java.lang.Object

org.apache.druid.catalog.model.table.InputFormats.BaseFormatDefn

org.apache.druid.catalog.model.table.InputFormats.FlatTextFormatDefn

org.apache.druid.catalog.model.table.InputFormats.DelimitedFormatDefn

All Implemented Interfaces:

InputFormatDefn

Enclosing class:

InputFormats

public static class InputFormats.DelimitedFormatDefn
extends InputFormats.FlatTextFormatDefn

Field Summary

Fields

Modifier and Type	Field and Description
static String	DELIMITER_FIELD
static String	DELIMITER_PARAMETER
static String	TYPE_KEY

Fields inherited from class org.apache.druid.catalog.model.table.InputFormats.FlatTextFormatDefn

LIST_DELIMITER_PARAMETER, SKIP_ROWS_PARAMETER

Constructor Summary

Constructors

Constructor and Description
DelimitedFormatDefn()

Method Summary

Modifier and Type	Method and Description
InputFormat	convertFromArgs(Map<String,Object> args, List<ColumnSpec> columns, com.fasterxml.jackson.databind.ObjectMapper jsonMapper) Create an input format instance from the values provided as arguments that correspond to the defined parameters.
protected Class<? extends InputFormat>	inputFormatClass() The target input format class for Jackson conversions.
String	typeValue()

Methods inherited from class org.apache.druid.catalog.model.table.InputFormats.FlatTextFormatDefn

adjustValues, convertFromTable, mapFromArgs, toMap, validate

Methods inherited from class org.apache.druid.catalog.model.table.InputFormats.BaseFormatDefn

convert, convertColumns, parameters

Methods inherited from class java.lang.Object

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

Field Detail

TYPE_KEY

public static final String TYPE_KEY

See Also:

Constant Field Values

DELIMITER_PARAMETER

public static final String DELIMITER_PARAMETER

See Also:

Constant Field Values

DELIMITER_FIELD

public static final String DELIMITER_FIELD

See Also:

Constant Field Values

Constructor Detail

DelimitedFormatDefn

public DelimitedFormatDefn()

Method Detail

typeValue

public String typeValue()

Returns:

the string used to identify the input format type in the serialized JSON for the input format. This is also the value used in the format property for SQL functions.

inputFormatClass

protected Class<? extends InputFormat> inputFormatClass()

Description copied from class: InputFormats.BaseFormatDefn

The target input format class for Jackson conversions.

Specified by:

inputFormatClass in class InputFormats.BaseFormatDefn

convertFromArgs

public InputFormat convertFromArgs(Map<String,Object> args,
                                   List<ColumnSpec> columns,
                                   com.fasterxml.jackson.databind.ObjectMapper jsonMapper)

Description copied from interface: InputFormatDefn

Create an input format instance from the values provided as arguments that correspond to the defined parameters. The map provided is guaranteed to have a value for each parameter defined as non-optional, and those values will be of the type defined in the parameter. The map will also contain values for the input source: the format should ignore values that don't correspond to parameters it defined.

Parameters:

args - the actual arguments for the defined parameters

columns - the columns provided in SQL, typically via the `EXTEND` clause, but perhaps from an the table spec, if the function is for a partial table

jsonMapper - the mapper to use to perform conversions

Returns:

an input format as defined by the arguments