Package org.apache.druid.data.input

Class AbstractInputSource

java.lang.Object

org.apache.druid.data.input.AbstractInputSource

All Implemented Interfaces:

InputSource

Direct Known Subclasses:

CloudObjectInputSource, CombiningInputSource, HttpInputSource, InlineInputSource, LocalInputSource

public abstract class AbstractInputSource
extends Object
implements InputSource

Abstract class for InputSource. This class provides a default implementation of reader(org.apache.druid.data.input.InputRowSchema, org.apache.druid.data.input.InputFormat, java.io.File) with a sanity check. Child classes should implement one of formattableReader(org.apache.druid.data.input.InputRowSchema, org.apache.druid.data.input.InputFormat, java.io.File) or fixedFormatReader(org.apache.druid.data.input.InputRowSchema, java.io.File) depending on InputSource.needsFormat().

Field Summary

Fields inherited from interface org.apache.druid.data.input.InputSource

TYPE_PROPERTY

Constructor Summary

Constructors

Constructor	Description
AbstractInputSource()

Method Summary

Modifier and Type	Method	Description
protected InputSourceReader	fixedFormatReader(InputRowSchema inputRowSchema, File temporaryDirectory)
protected InputSourceReader	formattableReader(InputRowSchema inputRowSchema, InputFormat inputFormat, File temporaryDirectory)
InputSourceReader	reader(InputRowSchema inputRowSchema, InputFormat inputFormat, File temporaryDirectory)	Creates an InputSourceReader.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.druid.data.input.InputSource

getTypes, isSplittable, needsFormat

Constructor Detail

AbstractInputSource

public AbstractInputSource()

Method Detail

reader

public InputSourceReader reader(InputRowSchema inputRowSchema,
                                @Nullable
                                InputFormat inputFormat,
                                File temporaryDirectory)

Description copied from interface: InputSource

Creates an InputSourceReader.

Specified by:

reader in interface InputSource

Parameters:

inputRowSchema - for InputRow

inputFormat - to parse data. It can be null if InputSource.needsFormat() = true

temporaryDirectory - to store temp data. It will be cleaned up automatically once the task is finished.

formattableReader

protected InputSourceReader formattableReader(InputRowSchema inputRowSchema,
                                              InputFormat inputFormat,
                                              File temporaryDirectory)

fixedFormatReader

protected InputSourceReader fixedFormatReader(InputRowSchema inputRowSchema,
                                              File temporaryDirectory)