@Override
public boolean canExecute() {
boolean canExecute = true;
if (getCreationTool() != null) {
if (getCreationTool().getFirstModelOperation() == null) {
canExecute = false;
} else {
if (getCreationTool().getPrecondition() != null
&& !StringUtil.isEmpty(getCreationTool().getPrecondition().trim())) {
IInterpreter interpreter = null;
try {
if (getTreeItem() != null) {
interpreter = InterpreterUtil.getInterpreter(getTreeItem().getTarget());
interpreter.setVariable(
IInterpreterSiriusVariables.ROOT, TreeHelper.getTree(getTreeItem()).getTarget());
interpreter.setVariable(
IInterpreterSiriusVariables.ELEMENT, getTreeItem().getTarget());
interpreter.setVariable(
IInterpreterSiriusVariables.CONTAINER,
((DTreeItemContainer) getTreeItem().eContainer()).getTarget());
canExecute =
interpreter.evaluateBoolean(
getTreeItem().getTarget(), getCreationTool().getPrecondition());
} else {
interpreter = InterpreterUtil.getInterpreter(getTable().getTarget());
interpreter.setVariable(IInterpreterSiriusVariables.ROOT, getTable().getTarget());
interpreter.setVariable(IInterpreterSiriusVariables.ELEMENT, getTable().getTarget());
interpreter.setVariable(IInterpreterSiriusVariables.CONTAINER, null);
canExecute =
interpreter.evaluateBoolean(
getTable().getTarget(), getCreationTool().getPrecondition());
}
} catch (final EvaluationException e) {
RuntimeLoggerManager.INSTANCE.error(
getCreationTool(),
ToolPackage.eINSTANCE.getAbstractToolDescription_Precondition(),
e);
}
interpreter.unSetVariable(IInterpreterSiriusVariables.ROOT);
interpreter.unSetVariable(IInterpreterSiriusVariables.ELEMENT);
interpreter.unSetVariable(IInterpreterSiriusVariables.CONTAINER);
}
}
}
return canExecute;
}
/**
* {@inheritDoc}
*
* <p>Overridden to have END_BEFORE_VARIABLE in tool precondition expression.
*/
@Override
protected boolean evaluatePrecondition(
IInterpreter interpreter, EObject semanticContainer, String precondition) {
interpreter.setVariable(END_BEFORE_VARIABLE, endBefore);
boolean result = super.evaluatePrecondition(interpreter, semanticContainer, precondition);
interpreter.unSetVariable(END_BEFORE_VARIABLE);
return result;
}