org.globus.ogsa
Interface GridServiceBase

All Superinterfaces:

GridServiceCallback, ServiceProperties

All Known Subinterfaces:

PersistentGridServiceBase

All Known Implementing Classes:

GridServiceImpl, PersistentGridServiceImpl

public interface GridServiceBase

extends ServiceProperties, GridServiceCallback

The GridServiceBase interface defines the methods that need to be supported by all Grid service implementations. This functionality is typically (although not necessarily) implemented by a base class that all Grid service implementations inherit from.

Field Summary

Fields inherited from interface org.globus.ogsa.ServiceProperties

ACTIVATE_ON_STARTUP, ACTIVATION, BASE_CLASS_NAME, BOOTSTRAP, CONFIG_PATH, CONTAINS_REFERENCE, CREATION_EXTENSIBILITY, CREATION_EXTENSIBILITY_OUTPUT, CUSTOM_EXTENSIBILITY_DESERIALIZER, CUSTOM_EXTENSIBILITY_SERIALIZER, CUSTOM_MAPPING_REGISTERED, DEACTIVATED_PERSISTENT, DEACTIVATED_STATE, DEACTIVATED_TRANSIENT, DEACTIVATION, DESTROY_LISTENER, DESTRUCTION_SKELETON, DISABLE_FACTORY_REGISTRY, ENDPOINT, ENTRY_INSTANCE_CREATION, FACTORY, FACTORY_CALLBACK, FACTORY_HANDLE, FACTORY_PROVIDER, FACTORY_REGISTRY, GSR_DESCRIPTION, HANDLE, HANDLE_PORT, HANDLE_PROTOCOL, INSTANCE_CLASS, INSTANCE_DEACTIVATION, INSTANCE_GSR_DESCRIPTION, INSTANCE_LIFECYCLE, INSTANCE_PORT_TYPE, INSTANCE_PORT_TYPE_NS, INSTANCE_PREFIX, INSTANCE_REGISTRY, INSTANCE_SCHEMA_PATH, INSTANCE_WSDL, INTERFACE_CLASS_NAME, INVOCATION_ID, LAZY_CREATION, LIFECYCLE, LIFECYCLE_MONITOR, LIFECYCLE_MONITOR_CLASS, NAME, NOTIFICATION_ENGINE, NOTIFICATION_FACTORY, NOTIFICATION_SOURCE, OPERATION_PROVIDERS, PERSISTENT, PERSISTENT_PROPERTIES, PORT, PORT_TYPE, PORT_TYPE_NS, PRIMARY_KEY, PROTOCOL, QUERY_ENGINE, REDIRECT_RESOLVER, REGISTRY, RESOLVER_CACHE, ROUTER_HEADER, ROUTER_VIA, SCHEMA_LOCATION, SCHEMA_PATH, SERVICE_ACTIVATOR, SERVICE_DATA, SERVICE_DEPLOYMENT, SERVICE_GROUP_ENTRY, SERVICE_GROUP_PROVIDER, SERVICE_LOADER, SERVICE_NODE, SERVICE_PATH, SINK_ID, STARTUP_STATE, SWEEP_SERVICE_DATA, TIMEOUT, TIMESTAMP, TRANSIENT, TYPE, USER, WEBSTART_PANEL_NAME, WEBSTART_URL, WSDL

Method Summary

void	addOperationProvider(OperationProvider provider) Adds a new operation provider to this service.
java.lang.Object	getInstanceProperty(java.lang.String key) Gets a property that is to be propagated to other instances that this Grid service may create.
OperationProvider	getOperationProvider(QName operationName) Gets the operation provider based on the qname of the operation as defined in the WSDL representation of the service interface.
QueryEngine	getQueryEngine() Gets the QueryEngine implementation that is used to evaluate service data based query expressions on the service.
ServiceDataSet	getServiceDataSet() Gets the ServiceDataSet implementing storage of service data entries for the service.
java.lang.Class	getServiceInterface() Gets the class representing the service interface of this service.
TerminationTimeType	getTerminationTime() Gets the current termination time of the service.
void	populateInstanceProperties(GridServiceBase service) Propagates instance properties of this service to another Grid service.
void	setQueryEngine(QueryEngine engine) Sets the QueryEngine implementation that is used to evaluate service data based query expressions on the service.
void	setServiceDataSet(ServiceDataSet serviceData) Sets the ServiceDataSet implementing storage of service data entries for the service.

Methods inherited from interface org.globus.ogsa.ServiceProperties

flush, getPersistentProperty, getProperty, setPersistentProperty, setProperty

Methods inherited from interface org.globus.ogsa.GridServiceCallback

activate, deactivate, postCreate, preCreate, preDestroy

Method Detail

getServiceDataSet

public ServiceDataSet getServiceDataSet()

Gets the ServiceDataSet implementing storage of service data entries for the service.

Returns:

ServiceDataSet associated with this Grid service

setServiceDataSet

public void setServiceDataSet(ServiceDataSet serviceData)

Sets the ServiceDataSet implementing storage of service data entries for the service.

Parameters:

serviceData - ServiceDataSet to be associated with this Grid service

getQueryEngine

public QueryEngine getQueryEngine()

Gets the QueryEngine implementation that is used to evaluate service data based query expressions on the service. The QueryEngine can be used to register new evaluators for custom query expressions.

Returns:

QueryEngine currently associated with this Grid service

setQueryEngine

public void setQueryEngine(QueryEngine engine)

Sets the QueryEngine implementation that is used to evaluate service data based query expressions on the service.

Parameters:

engine - QueryEngine to be associated with this Grid service

addOperationProvider

public void addOperationProvider(OperationProvider provider)
                          throws GridServiceException

Adds a new operation provider to this service. The provider will be initialized as part of this call. When a request is received by this service, which matches any operation that the provider exposes, the call will be redirected to the provider.

Parameters:

provider - OperationProvider to be linked with this service

Throws:

GridServiceException - if the provider failed to initialize

getOperationProvider

public OperationProvider getOperationProvider(QName operationName)

Gets the operation provider based on the qname of the operation as defined in the WSDL representation of the service interface.

Parameters:

operationName - name of operation to look up (namespace "" and localPart "*" can be used to find generic operation dispatchers)

Returns:

OperationProvider or null if no matching provider was found

getServiceInterface

public java.lang.Class getServiceInterface()

Gets the class representing the service interface of this service. The service interface is a combination of all methods exposed by this Grid service, including those provided by the OperationProviders. The service interface class may differ from the actual class implementing this GridServiceBase.

Returns:

the service interface class that this service was configured with

getTerminationTime

public TerminationTimeType getTerminationTime()

Gets the current termination time of the service. This is a convenience method for local clients. The same information can be retrieved by issuing a query on the OGSI terminationTime Service Data element.

Returns:

current termination time of this service

getInstanceProperty

public java.lang.Object getInstanceProperty(java.lang.String key)

Gets a property that is to be propagated to other instances that this Grid service may create.

Parameters:

key - the name of the property (note instance properties are prefixed by "instance-" in the configuration)

Returns:

the value of the specified property or null if the property was not found

populateInstanceProperties

public void populateInstanceProperties(GridServiceBase service)

Propagates instance properties of this service to another Grid service.

Parameters:

service - the Grid service that is to be populated with instance properties from this service