Package org.jboss.as.controller.persistence

Interface ConfigurationPersister

All Known Subinterfaces:

ExtensibleConfigurationPersister

All Known Implementing Classes:

AbstractConfigurationPersister, BackupXmlConfigurationPersister, NullConfigurationPersister, XmlConfigurationPersister

public interface ConfigurationPersister

The configuration persister for a model.

Author:

David M. Lloyd

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	ConfigurationPersister.PersistenceResource	Callback for use by callers to store(org.jboss.dmr.ModelNode, java.util.Set) to control whether the stored model should be flushed to permanent storage.
static interface	ConfigurationPersister.SnapshotInfo	Contains the info about the configuration snapshots

Field Summary

Fields

Modifier and Type	Field	Description
static ConfigurationPersister.SnapshotInfo	NULL_SNAPSHOT_INFO

Method Summary

Modifier and Type	Method	Description
void	deleteSnapshot(String name)	Deletes a snapshot using its name.
default boolean	hasStored()	Gets whether a call persist to persistent storage has been successfully completed.
default boolean	isPersisting()	Gets whether a call to store(ModelNode, Set) will return a ConfigurationPersister.PersistenceResource that will actually persist to persistent storage.
ConfigurationPersister.SnapshotInfo	listSnapshots()	Gets the names of the snapshots in the snapshots directory
List<org.jboss.dmr.ModelNode>	load()	Load the configuration model, returning it as a list of updates to be executed by the controller.
void	marshallAsXml(org.jboss.dmr.ModelNode model, OutputStream output)	Marshals the given configuration model to XML, writing to the given stream.
default String	publish(String target)	Publish the current configuration
default String	snapshot(String name, String message)	Take a snapshot of the current configuration.
ConfigurationPersister.PersistenceResource	store(org.jboss.dmr.ModelNode model, Set<PathAddress> affectedAddresses)	Persist the given configuration model if isPersisting() would return true, otherwise return a no-op ConfigurationPersister.PersistenceResource.
void	successfulBoot()	Called once the xml has been successfully parsed, translated into updates, executed in the target controller and all services have started successfully.

Field Detail

NULL_SNAPSHOT_INFO

static final ConfigurationPersister.SnapshotInfo NULL_SNAPSHOT_INFO

Method Detail

isPersisting

default boolean isPersisting()

Gets whether a call to store(ModelNode, Set) will return a ConfigurationPersister.PersistenceResource that will actually persist to persistent storage. Some implementations may return false until successfulBoot() is invoked. If this returns false the caller can safely omit any call to store(ModelNode, Set).

The default implementation always returns true

Returns:

true if a call to store(ModelNode, Set) will return an object that actually writes

hasStored

default boolean hasStored()

Gets whether a call persist to persistent storage has been successfully completed.

The default implementation always returns false

Returns:

true if a call to store(ModelNode, Set) will return an object that actually writes

store

ConfigurationPersister.PersistenceResource store(org.jboss.dmr.ModelNode model,
                                                 Set<PathAddress> affectedAddresses)
                                          throws ConfigurationPersistenceException

Persist the given configuration model if isPersisting() would return true, otherwise return a no-op ConfigurationPersister.PersistenceResource.

Parameters:

model - the model to persist

affectedAddresses - the addresses of the resources that were changed

Returns:

callback to use to control whether the stored model should be flushed to permanent storage. Will not be null

Throws:

ConfigurationPersistenceException - if a configuration persistence problem occurs

marshallAsXml

void marshallAsXml(org.jboss.dmr.ModelNode model,
                   OutputStream output)
            throws ConfigurationPersistenceException

Marshals the given configuration model to XML, writing to the given stream.

Parameters:

model - the model to persist

output - the stream

Throws:

ConfigurationPersistenceException - if a configuration persistence problem occurs

load

List<org.jboss.dmr.ModelNode> load()
                            throws ConfigurationPersistenceException

Load the configuration model, returning it as a list of updates to be executed by the controller.

Returns:

the configuration model as a list of updates to be executed by the controller.

Throws:

ConfigurationPersistenceException - if a configuration persistence problem occurs

successfulBoot

void successfulBoot()
             throws ConfigurationPersistenceException

Called once the xml has been successfully parsed, translated into updates, executed in the target controller and all services have started successfully.

Throws:

ConfigurationPersistenceException - if a configuration persistence problem occurs

See Also:

isPersisting()

snapshot

default String snapshot(String name,
                        String message)
                 throws ConfigurationPersistenceException

Take a snapshot of the current configuration.

Parameters:

message - optionnal message

Returns:

the file location of the snapshot

Throws:

ConfigurationPersistenceException - if a problem happened when creating the snapshot

publish

default String publish(String target)
                throws ConfigurationPersistenceException

Publish the current configuration

Parameters:

target - the target destination of the publication.

Returns:

the location of the published configuration

Throws:

ConfigurationPersistenceException - if a problem happened when publishing

listSnapshots

ConfigurationPersister.SnapshotInfo listSnapshots()

Gets the names of the snapshots in the snapshots directory

Returns:

the snapshot info. This will never return null

deleteSnapshot

void deleteSnapshot(String name)

Deletes a snapshot using its name.

Parameters:

name - the name of the snapshot (as returned by ConfigurationPersister.SnapshotInfo.names() returned from listSnapshots(). The whole name is not needed, just enough to uniquely identify it.

Throws:

IllegalArgumentException - if there is no snapshot with the given name, or if the name resolves to more than one snapshot.