Package org.apache.hadoop.util

Class DiskValidatorFactory

java.lang.Object

org.apache.hadoop.util.DiskValidatorFactory

@Private
@Unstable
public final class DiskValidatorFactory
extends Object

The factory class to create instance of DiskValidator.

Method Summary

Modifier and Type	Method	Description
static DiskValidator	getInstance(Class<? extends DiskValidator> clazz)	Returns a DiskValidator instance corresponding to the passed clazz.
static DiskValidator	getInstance(String diskValidator)	Returns DiskValidator instance corresponding to its name.

Methods inherited from class java.lang.Object

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

Method Details

getInstance

public static DiskValidator getInstance(Class<? extends DiskValidator> clazz)

Returns a DiskValidator instance corresponding to the passed clazz.

Parameters:

clazz - a class extends DiskValidator

Returns:

disk validator.

getInstance

public static DiskValidator getInstance(String diskValidator)
                                 throws DiskChecker.DiskErrorException

Returns DiskValidator instance corresponding to its name. The diskValidator parameter can be "basic" for BasicDiskValidator or "read-write" for ReadWriteDiskValidator.

Parameters:

diskValidator - canonical class name, for example, "basic"

Returns:

disk validator.

Throws:

DiskChecker.DiskErrorException - if the class cannot be located