/**
* This method first retrieve from the context the tree (ModelTask) that is
* going to be emulated by this task. Then, it creates its corresponding
* executor and finally spawns it. If the tree cannot be found in the
* context, does nothing.
*
* @see jbt.execution.core.ExecutionTask#internalSpawn()
*/
protected override void InternalSpawn()
{
/* Retrieve the tree to run from the context. */
treeToRun = Context.GetBT(
((ModelSubtreeLookup)ModelTask).TreeName);
if (treeToRun == null)
{
treeRetrieved = false;
/*
* Must request to be inserted into the list of tickable nodes,
* since no tree has been retrieved and as a result it must be the
* task the one continuin the work.
*/
Executor.RequestInsertionIntoList(BTExecutor.BTExecutorList.Tickable, this);
// System.err.println("Could not retrieve tree "
// + ((ModelSubtreeLookup) this.getModelTask()).getTreeName()
// + " from the context. Check if the context has been properly initialized.");
}
else
{
treeRetrieved = true;
/* Compute positions for the retrieved tree. */
treeToRun.ComputePositions();
executionTree = treeToRun.CreateExecutor(Executor, this);
executionTree.AddTaskListener(this);
executionTree.Spawn(Context);
}
}
