/**
* Clones operators contained in <code>original</code>, adds them to this execution unit and wires
* them as they were originally.
*
* @param forParallelExecution Indicates whether this clone is supposed to be executed in
* parallel. If yes, the clone will not be registered with the parent process and will share
* its {@link Operator#applyCount} with the original.
*/
public void cloneExecutionUnitFrom(ExecutionUnit original, boolean forParallelExecution) {
// Clone operators
Map<String, Operator> clonedOperatorsByName = new HashMap<String, Operator>();
for (Operator originalChild : original.operators) {
Operator clonedOperator =
originalChild.cloneOperator(originalChild.getName(), forParallelExecution);
addOperator(clonedOperator, !forParallelExecution);
clonedOperatorsByName.put(originalChild.getName(), clonedOperator);
}
// Restore connections
cloneConnections(original.getInnerSources(), original, clonedOperatorsByName);
for (Operator op : original.operators) {
cloneConnections(op.getOutputPorts(), original, clonedOperatorsByName);
}
// Unlock
original.getInnerSources().unlockPortExtenders();
original.getInnerSinks().unlockPortExtenders();
for (Operator op : this.operators) {
op.getInputPorts().unlockPortExtenders();
op.getOutputPorts().unlockPortExtenders();
}
// Other:
this.expanded = original.expanded;
}
