org.globus.cog.karajan.workflow.nodes.grid
Class AbstractGridNode

java.lang.Object
  org.globus.cog.karajan.workflow.nodes.FlowNode
      org.globus.cog.karajan.workflow.nodes.FlowContainer
          org.globus.cog.karajan.workflow.nodes.Sequential
              org.globus.cog.karajan.workflow.nodes.AbstractSequentialWithArguments
                  org.globus.cog.karajan.workflow.nodes.SequentialWithArguments
                      org.globus.cog.karajan.workflow.nodes.grid.AbstractGridNode

All Implemented Interfaces:

EventListener, ExtendedFlowElement, FlowElement, LoadListener, StatusListener

Direct Known Subclasses:

AbstractFileOperation, GridExec, GridTransfer

public abstract class AbstractGridNode

extends SequentialWithArguments

implements StatusListener

Nested Class Summary

Nested classes inherited from class org.globus.cog.karajan.workflow.nodes.FlowNode

FlowNode.FNTP

Field Summary

protected Hashtable

tasks

Fields inherited from class org.globus.cog.karajan.workflow.nodes.AbstractSequentialWithArguments

commonArguments, QUOTED

Fields inherited from class org.globus.cog.karajan.workflow.nodes.Sequential

INDEX

Fields inherited from class org.globus.cog.karajan.workflow.nodes.FlowContainer

CALLER

Fields inherited from class org.globus.cog.karajan.workflow.nodes.FlowNode

debug, startCount, TEXT, threadTracker

Constructor Summary

AbstractGridNode()

Method Summary

void	abortEvent(AbortEvent e)
protected Contact	getHost(VariableStack stack, String name, Scheduler scheduler)
String	getMeaningfulMessage(Exception ex)
Scheduler	getScheduler(VariableStack stack)
protected SecurityContext	getSecurityContext(VariableStack stack, String provider)
protected Service	getService(BoundContact contact, String provider)
void	post(VariableStack stack)
protected void	removeTask(Task task)
void	setSecurityContext(VariableStack stack, Service service)
protected void	setSecurityContextIfNotLocal(Service service, SecurityContext sc)
void	statusChanged(StatusEvent e)
void	submitScheduled(Scheduler scheduler, Task task, VariableStack stack, Object constraints)
protected abstract void	submitTask(VariableStack stack)
void	submitUnscheduled(TaskHandler handler, Task task, VariableStack stack)
protected void	taskCompleted(StatusEvent e, VariableStack stack)
protected void	taskFailed(StatusEvent e, VariableStack stack)

Methods inherited from class org.globus.cog.karajan.workflow.nodes.SequentialWithArguments

executeChildren

Methods inherited from class org.globus.cog.karajan.workflow.nodes.AbstractSequentialWithArguments

argumentsEvaluated, checkArguments, getArgument, getArgument, getArgumentCount, getArgumentIndex, getArgumentNames, getArguments, getMaxArgIndex, getNonpropargs, getPropargs, getQuotedArgs, getSortedArgs, getVargs, getVargsAsArray, hasArgument, hasNestedArguments, hasVariableArguments, initializeArgs, initializeStatic, newNameBindingVariableArguments, newVariableArguments, notificationEvent, pre, processArguments, setArguments, setArguments, setHasVargs, setNestedArgs, setNonpropargs, setQuotedArgs, setVargs

Methods inherited from class org.globus.cog.karajan.workflow.nodes.Sequential

executeSingle, exit, moreToExecute, startNext

Methods inherited from class org.globus.cog.karajan.workflow.nodes.FlowContainer

addChannel, execute, isOptimizable, setOptimize

Methods inherited from class org.globus.cog.karajan.workflow.nodes.FlowNode

abort, acceptsInlineText, addElement, checkClass, checkCompleted, checkFailed, complete, controlEvent, copy, echo, echo, elementCount, elements, end, event, executeErrorHandler, executeSimple, expandProperty, expandProperty, expandPropertyAsString, fail, fail, failIfNotDefined, failIfNull, failIfNull, failImmediately, failImmediately, failImmediately, fireControlEvent, fireMonitoringEvent, fireNotificationEvent, fireStatusMonitoringEvent, get_locator, getBooleanProperty, getBooleanProperty, getCanonicalType, getElement, getElementType, getIntProperty, getIntProperty, getParent, getProjectNode, getProperty, getStringProperty, getTreeProperty, getVar, hasFrame, hashCode, hasProperty, isCheckpointable, isSimple, isSystemProperty, loadComplete, loadStarted, monitoringEvent, propertyNames, removeProperty, restart, restartElement, ret, ret, set_locator, setAcceptsInlineText, setCheckpointable, setElementType, setFrame, setParent, setProperty, setProperty, setProperty, start, startElement, startElement, toString, verify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

tasks

protected Hashtable tasks

Constructor Detail

AbstractGridNode

public AbstractGridNode()

Method Detail

post

public final void post(VariableStack stack)
                throws ExecutionException

Overrides:

post in class FlowContainer

Throws:

ExecutionException

submitTask

protected abstract void submitTask(VariableStack stack)
                            throws ExecutionException

Throws:

ExecutionException

getScheduler

public Scheduler getScheduler(VariableStack stack)
                       throws ExecutionException

Throws:

ExecutionException

getHost

protected Contact getHost(VariableStack stack,
                          String name,
                          Scheduler scheduler)
                   throws ExecutionException

Throws:

ExecutionException

setSecurityContext

public void setSecurityContext(VariableStack stack,
                               Service service)
                        throws ExecutionException

Throws:

ExecutionException

abortEvent

public void abortEvent(AbortEvent e)
                throws ExecutionException

Throws:

ExecutionException

submitUnscheduled

public void submitUnscheduled(TaskHandler handler,
                              Task task,
                              VariableStack stack)
                       throws ExecutionException

Throws:

ExecutionException

submitScheduled

public void submitScheduled(Scheduler scheduler,
                            Task task,
                            VariableStack stack,
                            Object constraints)

statusChanged

public void statusChanged(StatusEvent e)

Specified by:

statusChanged in interface StatusListener

removeTask

protected void removeTask(Task task)

taskFailed

protected void taskFailed(StatusEvent e,
                          VariableStack stack)
                   throws ExecutionException

Throws:

ExecutionException

getMeaningfulMessage

public String getMeaningfulMessage(Exception ex)

taskCompleted

protected void taskCompleted(StatusEvent e,
                             VariableStack stack)
                      throws ExecutionException

Throws:

ExecutionException

getService

protected Service getService(BoundContact contact,
                             String provider)
                      throws ExecutionException

Throws:

ExecutionException

setSecurityContextIfNotLocal

protected void setSecurityContextIfNotLocal(Service service,
                                            SecurityContext sc)

getSecurityContext

protected SecurityContext getSecurityContext(VariableStack stack,
                                             String provider)
                                      throws InvalidProviderException,
                                             ProviderMethodException,
                                             ExecutionException

Throws:

InvalidProviderException

ProviderMethodException

ExecutionException