org.apache.ignite.internal.processors.hadoop

Interface HadoopHelper

All Known Implementing Classes:

HadoopNoopHelper

public interface HadoopHelper

IGFS utility processor adapter.

Method Summary

Modifier and Type	Method and Description
void	close() Close helper.
HadoopClassLoader	commonClassLoader() Get common Hadoop class loader.
boolean	isNoOp()
@Nullable InputStream	loadClassBytes(ClassLoader ldr, String clsName)
byte[]	loadReplace(InputStream in, String originalName, String replaceName) Load special replacement and impersonate.
String	workDirectory() Get work directory.

Method Detail

isNoOp

boolean isNoOp()

Returns:

Whether this is no-op implementation.

commonClassLoader

HadoopClassLoader commonClassLoader()

Get common Hadoop class loader.

Returns:

Common Hadoop class loader.

loadReplace

byte[] loadReplace(InputStream in,
                   String originalName,
                   String replaceName)

Load special replacement and impersonate.

Parameters:

in - Input stream.

originalName - Original class name.

replaceName - Replacer class name.

Returns:

Result.

loadClassBytes

@Nullable
@Nullable InputStream loadClassBytes(ClassLoader ldr,
                                               String clsName)

Parameters:

ldr - Loader.

clsName - Class.

Returns:

Input stream.

workDirectory

String workDirectory()

Get work directory.

Returns:

Work directory.

close

void close()

Close helper.