org.apache.oozie

Class FaultInjection

java.lang.Object

org.apache.oozie.FaultInjection

Direct Known Subclasses:

SkipCommitFaultInjection

public abstract class FaultInjection
extends Object

Fault Injection support class.

Concrete classes should be available only during testing, not in production.

To activate fault injection the FAULT_INJECTION system property must be set to true.

When fault injection is activated, the concrete class (specified by name) will be call for activation.

Concrete classes should be activated by presense of a second system property.

This fault injection pattern provides 3 levels of safeguard: a general 'fault injection' system property, the availabity of of the concrete 'fault injection' class in the classpath, a specifi 'fault injection' system property.

Refer to the SkipCommitFaultInjection class in the test classes for an example.

Field Summary

Fields

Modifier and Type	Field and Description
static String	FAULT_INJECTION

Constructor Summary

Constructors

Constructor and Description
FaultInjection()

Method Summary

Modifier and Type	Method and Description
abstract boolean	activate()
static boolean	activate(String className)
abstract void	deactivate()
static void	deactivate(String className)
abstract boolean	isActive()
static boolean	isActive(String className)

Methods inherited from class java.lang.Object

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

Field Detail

FAULT_INJECTION

public static final String FAULT_INJECTION

See Also:

Constant Field Values

Constructor Detail

FaultInjection

public FaultInjection()

Method Detail

activate

public static boolean activate(String className)

deactivate

public static void deactivate(String className)

isActive

public static boolean isActive(String className)

activate

public abstract boolean activate()

deactivate

public abstract void deactivate()

isActive

public abstract boolean isActive()