alma.ACS.MasterComponentImpl

Class MasterComponentImplBase.DefaultResourceErrorHandler<T>

java.lang.Object

alma.ACS.MasterComponentImpl.MasterComponentImplBase.DefaultResourceErrorHandler<T>

All Implemented Interfaces:

SubsysResourceMonitor.ResourceErrorHandler<T>

Enclosing class:

MasterComponentImplBase

public class MasterComponentImplBase.DefaultResourceErrorHandler<T>
extends java.lang.Object
implements SubsysResourceMonitor.ResourceErrorHandler<T>

[ miscellaneous ]

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	isComponent
protected java.lang.String	resourceName

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DefaultResourceErrorHandler(java.lang.String resourceName, boolean isComponent)

Method Summary

Modifier and Type	Method and Description
void	badState(T resource, java.lang.String stateName) Called when SubsysResourceMonitor was found in a bad state, but still replied in time.
void	resourceRecovered(T resource) Subclasses might want to send a reinit event to the state machine.
boolean	resourceUnreachable(T resource) Called when the resource could not be reached at all because of a timeout or network/middleware communication errors.

Methods inherited from class java.lang.Object

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

Field Detail

resourceName

protected final java.lang.String resourceName

isComponent

protected final boolean isComponent

Constructor Detail

DefaultResourceErrorHandler

protected DefaultResourceErrorHandler(java.lang.String resourceName,
                                      boolean isComponent)

Method Detail

resourceUnreachable

public boolean resourceUnreachable(T resource)

Description copied from interface: SubsysResourceMonitor.ResourceErrorHandler

Called when the resource could not be reached at all because of a timeout or network/middleware communication errors. The resource object is passed to allow using one handler for many resources.

The return value controls whether monitoring of this resource will be stopped:

1. true means that the error handler decided that this resource is unreachable beyond repair, and that no further monitoring calls should be made. This can avoid potential problems with an increasing number of hanging calls and eventually stopping the respective threads.
2. false means that monitoring calls should continue.

Specified by:

resourceUnreachable in interface SubsysResourceMonitor.ResourceErrorHandler<T>

badState

public void badState(T resource,
                     java.lang.String stateName)

Description copied from interface: SubsysResourceMonitor.ResourceErrorHandler

Called when SubsysResourceMonitor was found in a bad state, but still replied in time.

Specified by:

badState in interface SubsysResourceMonitor.ResourceErrorHandler<T>

Parameters:

resource - The resource object is passed to allow using one handler for many resources.

stateName - Name of the bad state the resource was found in. If the resource does not support named states, it may return any String that indicates the problem. For example, SubsysResourceMonitor.PingableResourceChecker returns "ping() failed." which is then used as the stateName.

See Also:

SubsysResourceMonitor.ResourceChecker.checkState()

resourceRecovered

public void resourceRecovered(T resource)

Subclasses might want to send a reinit event to the state machine.

Specified by:

resourceRecovered in interface SubsysResourceMonitor.ResourceErrorHandler<T>