Interface AuditService
- All Superinterfaces:
RequestHandler
- All Known Implementing Classes:
AuditServiceProxy
,NoOpAuditService
RequestHandler
responsible for storing and retrieving audit events.
After construction, the AuditService will be in the 'STARTING' state until startup()
is called.
When in the 'STARTING' state, a call to any method other than startup()
will lead to
ServiceUnavailableException
.
After startup()
is called, assuming startup succeeds, the AuditService will then be in the
'RUNNING' state and further calls to startup()
will be ignored.
Calling shutdown()
will put the AuditService into the 'SHUTDOWN' state; once shutdown, the
AuditService will remain in this state and cannot be restarted. Further calls to shutdown()
will be ignored. When in the 'SHUTDOWN' state, a call to any method other than shutdown()
will
lead to ServiceUnavailableException
.
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Method Summary
Modifier and TypeMethodDescriptionGets the AuditService configuration.Returns the set of event topics (schemas) that theAuditService
understands.getRegisteredHandler
(String handlerName) Returns the registered handler corresponding to provided name.Returns the registered handlers.handleAction
(Context context, ActionRequest request) Audit service may support actions on the service itself or on handlers.handleCreate
(Context context, CreateRequest request) Propagates the audit event to theAuditEventHandler
objects that have been registered for the audit event topic.handleDelete
(Context context, DeleteRequest request) Audit service does not support changing audit entries.handlePatch
(Context context, PatchRequest request) Audit service does not support changing audit entries.handleQuery
(Context context, QueryRequest request, QueryResourceHandler handler) Performs the query on the specified object and returns the associated results.handleRead
(Context context, ReadRequest request) Gets an object from the audit logs by identifier.handleUpdate
(Context context, UpdateRequest request) Audit service does not support changing audit entries.boolean
isAuditing
(String topic) Returns whether or not events of the specified topic will be handled.boolean
Returnstrue
if this object is running.void
shutdown()
Closes thisAuditService
and all itsAuditEventHandler
s.void
startup()
Allows thisAuditService
and all itsAuditEventHandler
s to perform any initialization that would be unsafe to do if any other instance of theAuditService
were still running.
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Method Details
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handleRead
Gets an object from the audit logs by identifier. The returned object is not validated against the current schema and may need processing to conform to an updated schema.The object will contain metadata properties, including object identifier
_id
, and object version_rev
to enable optimistic concurrencyIf this
Reads a JSON resource, returning aAuditService
has been closed, the returned promise will resolve to aServiceUnavailableException
.Promise
that will be completed when the resource has been read.Read expects failure exceptions as follows:
ForbiddenException
if access to the resource is forbidden.NotSupportedException
if the requested functionality is not implemented/supportedBadRequestException
if the passed identifier or filter is invalidNotFoundException
if the specified resource could not be found.
- Specified by:
handleRead
in interfaceRequestHandler
- Parameters:
context
- The request server context, such as associated principal.request
- The read request.- Returns:
- A
Promise
containing the result of the operation.
-
handleCreate
Propagates the audit event to theAuditEventHandler
objects that have been registered for the audit event topic.This method sets the
_id
property to the assigned identifier for the object, and the_rev
property to the revised object version (For optimistic concurrency).If this
Adds a new JSON resource, returning aAuditService
has been closed, the returned promise will resolve to aServiceUnavailableException
.Promise
that will be completed when the resource has been added.Create expects failure exceptions as follows:
CreateNotSupportedException
if create is not implemented or supported by the RequestHandler.ForbiddenException
if access to the resource is forbidden.NotSupportedException
if the requested functionality is not implemented/supportedPreconditionFailedException
if a resource with the same ID already existsBadRequestException
if the passed identifier or value is invalidNotFoundException
if the specified id could not be resolved, for example when an intermediate resource in the hierarchy does not exist.
- Specified by:
handleCreate
in interfaceRequestHandler
- Parameters:
context
- The request server context, such as associated principal.request
- The create request.- Returns:
- A
Promise
containing the result of the operation.
-
handleUpdate
Audit service does not support changing audit entries.The returned promise will resolve to a
NotSupportedException
.- Specified by:
handleUpdate
in interfaceRequestHandler
- Parameters:
context
- The request server context, such as associated principal.request
- The update request.- Returns:
- A
Promise
containing the result of the operation.
-
handleDelete
Audit service does not support changing audit entries.The returned promise will resolve to a
NotSupportedException
.- Specified by:
handleDelete
in interfaceRequestHandler
- Parameters:
context
- The request server context, such as associated principal.request
- The delete request.- Returns:
- A
Promise
containing the result of the operation.
-
handlePatch
Audit service does not support changing audit entries.The returned promise will resolve to a
NotSupportedException
.- Specified by:
handlePatch
in interfaceRequestHandler
- Parameters:
context
- The request server context, such as associated principal.request
- The patch request.- Returns:
- A
Promise
containing the result of the operation.
-
handleQuery
Promise<QueryResponse,ResourceException> handleQuery(Context context, QueryRequest request, QueryResourceHandler handler) Performs the query on the specified object and returns the associated results.Queries are parametric; a set of named parameters is provided as the query criteria. The query result is a JSON object structure composed of basic Java types.
The returned map is structured as follow:- The top level map contains meta-data about the query, plus an entry with the actual result records.
- The
QueryConstants
defines the map keys, including the result records (QUERY_RESULT)
If this
Searches for all JSON resources matching a user specified set of criteria, returning aAuditService
has been closed, the returned promise will resolve to aServiceUnavailableException
.Promise
that will be completed when the search has completed.Implementations must invoke
QueryResourceHandler.handleResource(ResourceResponse)
for each resource which matches the query criteria. Once all matching resources have been returned implementations are required to return either aQueryResponse
if the query has completed successfully, orResourceException
if the query did not complete successfully (even if some matching resources were returned).Query expects failure exceptions as follows:
ForbiddenException
if access to the resource is forbiddenNotSupportedException
if the requested functionality is not implemented/supportedBadRequestException
if the passed identifier, parameters or filter is invalidNotFoundException
if the specified resource could not be found
- Specified by:
handleQuery
in interfaceRequestHandler
- Parameters:
context
- The request server context, such as associated principal.request
- The query request.handler
- The query resource handler to be notified for each matching resource.- Returns:
- A
Promise
containing the result of the operation.
-
handleAction
Audit service may support actions on the service itself or on handlers.One of the following paths format is expected:
[path-to-audit-service]?_action=XXX : call a global action on audit service [path-to-audit-service/[topic]?_action=XXX : call an action on audit service and a single topic [path-to-audit-service]?_action=XXX&handler=HHH : call on action on a specific handler [path-to-audit-service/[topic]?_action=XXX&handler=HHH : call on action on a specific handler and topic
- Specified by:
handleAction
in interfaceRequestHandler
- Parameters:
context
- The request server context, such as associated principal.request
- The action request.- Returns:
- A
Promise
containing the result of the operation.
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getConfig
Gets the AuditService configuration.- Returns:
- the audit service config
- Throws:
ServiceUnavailableException
- if the AuditService has been closed.
-
getRegisteredHandler
Returns the registered handler corresponding to provided name.- Parameters:
handlerName
- Name of the registered handler to retrieve.- Returns:
- the handler, or
null
if no handler with the provided name was registered to the service. - Throws:
ServiceUnavailableException
- if the AuditService has been closed.
-
getRegisteredHandlers
Returns the registered handlers.- Returns:
- the handlers
- Throws:
ServiceUnavailableException
- if the AuditService has been closed.
-
isAuditing
Returns whether or not events of the specified topic will be handled.- Parameters:
topic
- Identifies a category of events to which handlers may or may not be registered.- Returns:
- whether handling of the specified topic is enabled.
- Throws:
ServiceUnavailableException
- if the AuditService has been closed.
-
getKnownTopics
Returns the set of event topics (schemas) that theAuditService
understands.- Returns:
- The set of event topics.
- Throws:
ServiceUnavailableException
- if the AuditService has been closed.
-
startup
Allows thisAuditService
and all itsAuditEventHandler
s to perform any initialization that would be unsafe to do if any other instance of theAuditService
were still running.- Throws:
ServiceUnavailableException
- if the AuditService has been closed.
-
shutdown
void shutdown()Closes thisAuditService
and all itsAuditEventHandler
s.This ensures that any buffered are flushed and all file handles / network connections are closed.
Once
closed
, any further calls to thisAuditService
will throw, or return a promise that will resolve to,ServiceUnavailableException
. -
isRunning
boolean isRunning()Returnstrue
if this object is running.This object will be in a 'running' state if
startup()
completed successfully andshutdown()
has not yet been called.- Returns:
- true if this object is running; false otherwise.
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