/**
* @param sesId Session ID.
* @param taskNodeId Task node ID.
* @param taskName Task name.
* @param dep Deployment.
* @param taskClsName Task class name.
* @param top Topology.
* @param startTime Execution start time.
* @param endTime Execution end time.
* @param siblings Collection of siblings.
* @param attrs Map of attributes.
* @param fullSup {@code True} to enable distributed session attributes and checkpoints.
* @return New session if one did not exist, or existing one.
*/
public GridTaskSessionImpl createTaskSession(
GridUuid sesId,
UUID taskNodeId,
String taskName,
@Nullable GridDeployment dep,
String taskClsName,
@Nullable Collection<UUID> top,
long startTime,
long endTime,
Collection<GridComputeJobSibling> siblings,
Map<Object, Object> attrs,
boolean fullSup) {
if (!fullSup) {
return new GridTaskSessionImpl(
taskNodeId,
taskName,
dep,
taskClsName,
sesId,
top,
startTime,
endTime,
siblings,
attrs,
ctx,
fullSup);
}
while (true) {
GridTaskSessionImpl ses = sesMap.get(sesId);
if (ses == null) {
GridTaskSessionImpl old =
sesMap.putIfAbsent(
sesId,
ses =
new GridTaskSessionImpl(
taskNodeId,
taskName,
dep,
taskClsName,
sesId,
top,
startTime,
endTime,
siblings,
attrs,
ctx,
fullSup));
if (old != null) ses = old;
else
// Return without acquire.
return ses;
}
if (ses.acquire()) return ses;
else sesMap.remove(sesId, ses);
}
}
/**
* Removes session for a given session ID.
*
* @param sesId ID of session to remove.
* @return {@code True} if session was removed.
*/
public boolean removeSession(GridUuid sesId) {
GridTaskSessionImpl ses = sesMap.get(sesId);
assert ses == null || ses.isFullSupport();
if (ses != null && ses.release()) {
sesMap.remove(sesId, ses);
return true;
}
return false;
}