Package org.apache.oozie.service

Interface Summary

Interface	Description
Service	A service is component managed by the Services singleton.

Class Summary

Class	Description
ActionCheckerService	The Action Checker Service queue ActionCheckCommands to check the status of running actions and CoordActionCheckCommands to check the status of coordinator actions.
ActionService
AuthorizationService	The authorization service provides all authorization checks.
BundleEngineService	Service that return a bundle engine for a user.
CallableQueueService	The callable queue service queues XCallables for asynchronous execution.
CallbackService	Service that generates and parses callback URLs.
ConfigurationService	Built in service that initializes the services configuration.
CoordinatorEngineService	Service that return a coordinator engine for a user.
CoordinatorStoreService	Base service for persistency of jobs and actions.
CoordMaterializeTriggerService	The coordinator Materialization Lookup trigger service schedule lookup trigger command for every interval (default is 5 minutes ).
DagEngineService	Service that return a dag engine for a user.
DagXLogInfoService	Set Dag specific log info parameters.
DBLiteWorkflowStoreService
ELService	The ELService creates ELEvaluator instances preconfigured with constants and functions defined in the configuration.
EventHandlerService	Service class that handles the events system - creating events queue, managing configured properties and managing and invoking various event listeners via worker threads
GroupsService	The GroupsService class delegates to the Hadoop's org.apache.hadoop.security.Groups to retrieve the groups a user belongs to.
HadoopAccessorService	The HadoopAccessorService returns HadoopAccessor instances configured to work on behalf of a user-group.
HCatAccessorService
InstrumentationService	This service provides an Instrumentation instance configured to support samplers.
JMSAccessorService	This class will Create/Manage JMS connections using user configured JNDI properties.
JMSTopicService	JMS Topic service to retrieve topic names from events or job id
JobsConcurrencyService	This Service helps coordinate other Services to prevent duplicate processing of Jobs if there are multiple Oozie Servers.
JPAService	Service that manages JPA and executes JPAExecutor.
JPAService.QueryEntry<E extends Enum<E>>
JvmPauseMonitorService	This class sets up a simple thread that sleeps for a short period of time.
LiteWorkflowAppService	Service that provides workflow application definition reading, parsing and creating proto configuration.
LiteWorkflowStoreService
LiteWorkflowStoreService.LiteActionHandler
LiteWorkflowStoreService.LiteControlNodeHandler
LiteWorkflowStoreService.LiteDecisionHandler
MemoryLocksService	Service that provides in-memory locks.
MetricsInstrumentationService	This service provides an Instrumentation instance mostly compatible with the original Instrumentation, but backed by Codahale Metrics.
PartitionDependencyManagerService	Module that functions like a caching service to maintain partition dependency mappings
PauseTransitService	PauseTransitService is the runnable which is scheduled to run at the configured interval, it checks all bundles to see if they should be paused, un-paused or started.
PauseTransitService.PauseTransitRunnable	PauseTransitRunnable is the runnable which is scheduled to run at the configured interval, it checks all bundles to see if they should be paused, un-paused or started.
ProxyUserService	The ProxyUserService checks if a user of a request has proxyuser privileges.
PurgeService	The PurgeService schedules purging of completed jobs and associated action older than a specified age for workflow, coordinator and bundle.
RecoveryService	The Recovery Service checks for pending actions and premater coordinator jobs older than a configured age and then queues them for execution.
SchedulerService	This service executes scheduled Runnables and Callables at regular intervals.
SchemaService	Service that loads Oozie workflow definition schema and registered extension schemas.
Services	Services is a singleton that manages the lifecycle of all registered Services.
ShareLibService
SLAStoreService
StatusTransitService	StateTransitService is scheduled to run at the configured interval.
StatusTransitService.StatusTransitRunnable	StateTransitRunnable is the runnable which is scheduled to run at the configured interval.
StoreService	Base service for persistency of jobs and actions.
URIHandlerService
UserGroupInformationService
UUIDService	The UUID service generates unique IDs.
WorkflowAppService	Service that provides application workflow definition reading from the path and creation of the proto configuration.
WorkflowSchemaService	Service that loads Oozie workflow definition schema and registered extension schemas.
WorkflowStoreService	Base service for persistency of jobs and actions.
XLogService	Built-in service that initializes and manages Logging via Log4j.
XLogStreamingService	Service that performs streaming of log files over Web Services if enabled in XLogService
ZKJobsConcurrencyService	This Service helps coordinate other Services to prevent duplicate processing of Jobs if there are multiple Oozie Servers.
ZKLocksService	Service that provides distributed locks via ZooKeeper.
ZKUUIDService	Service that provides distributed job id sequence via ZooKeeper.
ZKXLogStreamingService	Service that performs streaming of log files over Web Services if enabled in XLogService and collates logs from other Oozie servers.

Enum Summary

Enum	Description
JMSTopicService.JobType
JMSTopicService.TopicType
SchedulerService.Unit
SchemaService.SchemaName
UUIDService.ApplicationType

Exception Summary

Exception	Description
AuthorizationException
HadoopAccessorException
HCatAccessorException
ServiceException	Exception thrown by Services and Service during initialization.