Package org.jboss.as.controller

Class RestartParentResourceHandlerBase

java.lang.Object

org.jboss.as.controller.RestartParentResourceHandlerBase

All Implemented Interfaces:

OperationStepHandler

Direct Known Subclasses:

RestartParentResourceAddHandler, RestartParentResourceRemoveHandler

public abstract class RestartParentResourceHandlerBase
extends Object
implements OperationStepHandler

Simple remove handler that, if allowed, restarts a parent resource when a child is removed. Otherwise the server is put into a forced reload.

Author:

Jason T. Greene

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RestartParentResourceHandlerBase(String parentKeyName)

Method Summary

Modifier and Type	Method	Description
void	execute(OperationContext context, org.jboss.dmr.ModelNode operation)	Execute this step.
protected PathAddress	getParentAddress(PathAddress address)
protected abstract org.jboss.msc.service.ServiceName	getParentServiceName(PathAddress parentAddress)	Gets the name of the parent service.
protected boolean	isResourceServiceRestartAllowed(OperationContext context, org.jboss.msc.service.ServiceController<?> service)	Gets whether a restart of the parent resource's services is allowed.
protected void	recreateParentService(OperationContext context, PathAddress parentAddress, org.jboss.dmr.ModelNode parentModel)	Recreate the parent service(s) using the given model.
protected void	removeServices(OperationContext context, org.jboss.msc.service.ServiceName parentService, org.jboss.dmr.ModelNode parentModel)	Removes services.
protected boolean	requiresRuntime(OperationContext context)	Gets whether this operation needs to update the runtime.
protected void	rollbackRuntime(OperationContext context, org.jboss.dmr.ModelNode operation, Resource resource)	Rollback the update.
protected abstract void	updateModel(OperationContext context, org.jboss.dmr.ModelNode operation)	Performs the update to the persistent configuration model.

Methods inherited from class java.lang.Object

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

Constructor Detail

RestartParentResourceHandlerBase

protected RestartParentResourceHandlerBase(String parentKeyName)

Method Detail

execute

public void execute(OperationContext context,
                    org.jboss.dmr.ModelNode operation)
             throws OperationFailedException

Description copied from interface: OperationStepHandler

Execute this step. If the operation fails, context.getFailureDescription() must be called, or an OperationFailedException must be thrown. If the operation succeeded and the operation provides a return value, context.getResult() should be called and the result populated with the outcome. If the handler wishes to take further action once the result of the overall operation execution is known, one of the context.completeStep variants should be called to register a callback. The callback will not be invoked if this method throws an exception.

When this method is invoked the thread context classloader will be set to be the defining class loader of the class that implements this interface.

Specified by:

execute in interface OperationStepHandler

Parameters:

context - the operation context

operation - the operation being executed

Throws:

OperationFailedException - if the operation failed before calling context.completeStep()

requiresRuntime

protected boolean requiresRuntime(OperationContext context)

Gets whether this operation needs to update the runtime. The default implementation returns true if {@link OperationContext#getProcessType()#isHostController()} is false.

Parameters:

context - the operation context

Returns:

true if the operation should update the runtime; false if it only updates the configuration model

isResourceServiceRestartAllowed

protected boolean isResourceServiceRestartAllowed(OperationContext context,
                                                  org.jboss.msc.service.ServiceController<?> service)

Gets whether a restart of the parent resource's services is allowed. This default implementation checks whether the context allows resource service restarts; subclasses could also check the state of the service.

Parameters:

context - the operation context

service - the parent service

Returns:

true if a restart is allowed; false

removeServices

protected void removeServices(OperationContext context,
                              org.jboss.msc.service.ServiceName parentService,
                              org.jboss.dmr.ModelNode parentModel)
                       throws OperationFailedException

Removes services. This default implementation simply instructs the context to remove the parentService. Subclasses could use the provided parentModel to identify and remove other services.

Parameters:

context - the operation context

parentService - the name of the parent service

parentModel - the model associated with the parent resource, including nodes for any child resources

Throws:

OperationFailedException - if there is a problem removing the services

updateModel

protected abstract void updateModel(OperationContext context,
                                    org.jboss.dmr.ModelNode operation)
                             throws OperationFailedException

Performs the update to the persistent configuration model.

Parameters:

context - the operation context

operation - the operation

Throws:

OperationFailedException - if there is a problem updating the model

rollbackRuntime

protected void rollbackRuntime(OperationContext context,
                               org.jboss.dmr.ModelNode operation,
                               Resource resource)

Rollback the update.

Parameters:

context - the operation context

operation - the operation

resource - the resource

recreateParentService

protected void recreateParentService(OperationContext context,
                                     PathAddress parentAddress,
                                     org.jboss.dmr.ModelNode parentModel)
                              throws OperationFailedException

Recreate the parent service(s) using the given model.

Parameters:

context - the operation context

parentAddress - the address of the parent resource

parentModel - the current configuration model for the parent resource and its children

Throws:

OperationFailedException - if there is a problem installing the services

getParentServiceName

protected abstract org.jboss.msc.service.ServiceName getParentServiceName(PathAddress parentAddress)

Gets the name of the parent service.

Parameters:

parentAddress - the address of the parent resource

Returns:

the service name

getParentAddress

protected PathAddress getParentAddress(PathAddress address)