public class SGetPhysicalLocation extends TypedAtomicActor
Get the physical location of SRB files. Returns the physical location of a logical SRB path. This remote location cannot be accessed through windows. The following actor expects as input a reference to the SRB file system. This reference connection is obtained via the SRBConnect Actor in Kepler. See SRBConnect and its documentation.
The file reference system is created with a unique SRB user account and with this connection reference as input the SRBPhysicalLocation actor is able to gain access to the SRB file space. Once an alive SRB file connection system has been established the actor gets the remode SRB file path and checks for it's existence. The SRB file is queried for its PATH_NAME (Physical Location) from its Metadata.
Actor Input: Accepts a reference to the SRB files system, an SRB remote file name(s) as input. SRB remote file name is the logical file path.
SRB Logical Name Space It is easy to think of SRB Collections as Unix directories (or Windows folders), but there is a fundamental difference. Each individual data object (file) in a collection can be stored on a different physical device. Unix directories and Windows folders use space from the physical device on which they reside, but SRB collections are part of a "logical name space" that exists in the MCAT and maps individual data objects (files) to physical files. The logical name space is the set of names of collections (directories) and data objects (files) maintained by the SRB. Users see and interact with the logical name space, and the physical location is handled by the SRB system and administrators. The SRB system adds this logical name space on top of the physcial name space, and derives much of its power and functionality from that.
Actor Output: The actor returns the physical location of SRB path.Also returned is an exit code status indicating either success or failure/errors in getting file's physical location.
The following actor accesses SRB file reference system and SRB file space with the SRB Jargon API provided. The JARGON is a pure API for developing programs with a data grid interface and I/O for SRB file systems.
Further information on SRB hEntity.ContainedObjectsIterator| Modifier and Type | Field and Description |
|---|---|
TypedIOPort |
logicalPath
Logical path to SRB file
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TypedIOPort |
physicalPath
Paths to the local location.
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TypedIOPort |
SRBFileSystem
Connection reference
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_typesValid_actorFiringListeners, _initializables, _notifyingActorFiring, _stopRequested_changeListeners, _changeLock, _changeRequests, _debugging, _debugListeners, _deferChangeRequests, _elementName, _isPersistent, _verbose, _workspace, ATTRIBUTES, CLASSNAME, COMPLETE, CONTENTS, DEEP, FULLNAME, LINKSCOMPLETED, NOT_READY, STOP_ITERATING| Constructor and Description |
|---|
SGetPhysicalLocation(CompositeEntity container,
java.lang.String name)
Construct a constant source with the given container and name.
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| Modifier and Type | Method and Description |
|---|---|
void |
fire()
Get the physical location of SRB logical file paths.
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void |
initialize()
Initialize the srb file system to null.
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void |
wrapup()
Disconnect from SRB.
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_containedTypeConstraints, _customTypeConstraints, _defaultTypeConstraints, _fireAt, _fireAt, attributeTypeChanged, clone, clone, isBackwardTypeInferenceEnabled, newPort, typeConstraintList, typeConstraints_actorFiring, _actorFiring, _declareDelayDependency, addActorFiringListener, addInitializable, connectionsChanged, createReceivers, declareDelayDependency, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, isFireFunctional, isStrict, iterate, newReceiver, outputPortList, postfire, prefire, preinitialize, pruneDependencies, recordFiring, removeActorFiringListener, removeDependency, removeInitializable, setContainer, stop, stopFire, terminate_adjustDeferrals, _checkContainer, _getContainedObject, _propagateExistence, getContainer, instantiate, isAtomic, isOpaque, moveDown, moveToFirst, moveToIndex, moveToLast, moveUp, propagateExistence, setName_addPort, _description, _exportMoMLContents, _removePort, _validateSettables, connectedPortList, connectedPorts, containedObjectsIterator, getAttribute, getPort, getPorts, linkedRelationList, linkedRelations, portList, removeAllPorts, setClassDefinition, uniqueName_setParent, exportMoML, getChildren, getElementName, getParent, getPrototypeList, isClassDefinition, isWithinClassDefinition_addAttribute, _adjustOverride, _attachText, _cloneFixAttributeFields, _containedDecorators, _copyChangeRequestList, _debug, _debug, _debug, _debug, _debug, _executeChangeRequests, _getIndentPrefix, _isMoMLSuppressed, _markContentsDerived, _notifyHierarchyListenersAfterChange, _notifyHierarchyListenersBeforeChange, _propagateValue, _removeAttribute, _splitName, _stripNumericSuffix, addChangeListener, addDebugListener, addHierarchyListener, attributeChanged, attributeDeleted, attributeList, attributeList, decorators, deepContains, depthInHierarchy, description, description, event, executeChangeRequests, exportMoML, exportMoML, exportMoML, exportMoML, exportMoMLPlain, getAttribute, getAttributes, getChangeListeners, getClassName, getDecoratorAttribute, getDecoratorAttributes, getDerivedLevel, getDerivedList, getDisplayName, getFullName, getModelErrorHandler, getName, getName, getSource, handleModelError, isDeferringChangeRequests, isOverridden, isPersistent, lazyContainedObjectsIterator, message, notifyOfNameChange, propagateValue, propagateValues, removeAttribute, removeChangeListener, removeDebugListener, removeHierarchyListener, requestChange, setClassName, setDeferringChangeRequests, setDerivedLevel, setDisplayName, setModelErrorHandler, setPersistent, setSource, sortContainedObjects, toplevel, toString, validateSettables, workspaceequals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, waitcreateReceivers, getCausalityInterface, getDirector, getExecutiveDirector, getManager, inputPortList, newReceiver, outputPortListisFireFunctional, isStrict, iterate, postfire, prefire, stop, stopFire, terminateaddInitializable, preinitialize, removeInitializabledescription, getContainer, getDisplayName, getFullName, getName, getName, setNamegetDerivedLevel, getDerivedList, propagateValuepublic TypedIOPort SRBFileSystem
public TypedIOPort logicalPath
public TypedIOPort physicalPath
public SGetPhysicalLocation(CompositeEntity container, java.lang.String name) throws NameDuplicationException, IllegalActionException
container - The container.name - The name of this actor.IllegalActionException - If the entity cannot be contained by the proposed
container.NameDuplicationException - If the container already has an actor with this name.public void fire() throws IllegalActionException
fire in interface Executablefire in class AtomicActor<TypedIOPort>IllegalActionException - If it is thrown if the SRB file cannot be accessed or the
current directory cannot be broadcasted.public void initialize() throws IllegalActionException
initialize in interface Initializableinitialize in class AtomicActor<TypedIOPort>IllegalActionException - If a derived class throws it.public void wrapup()
wrapup in interface Initializablewrapup in class AtomicActor<TypedIOPort>