public VariableLike getVariableByName(Referable referable, String variableName)
throws NavigationException {
Objects.requireNonNull(variableName, "VariableName must not be null!");
NodeHelper element = new NodeHelper(referable);
String elementName = element.getLocalName();
if ("scope".equals(elementName) || "process".equals(elementName)) {
Nodes variable =
element
.toXOM()
.query("./bpel:variables/bpel:variable[@name='" + variableName + "']", CONTEXT);
if (variable != null && !variable.isEmpty()) {
return new VariableElement(variable.get(0), processContainer);
}
if ("process".equals(elementName)) {
throw new NavigationException("Variable does not exist.");
}
}
if ("onEvent".equals(elementName)) {
if (variableName.equals(element.getAttribute("variable"))) {
return new OnEventElement(element.toXOM(), processContainer);
}
}
if ("catch".equals(elementName)) {
if (variableName.equals(element.getAttribute("faultVariable"))) {
return new CatchElement(element.toXOM(), processContainer);
}
}
if ("forEach".equals(elementName)) {
if (variableName.equals(element.getAttribute("counterName"))) {
return new ForEachVariable(element.toXOM(), processContainer);
}
}
return getVariableByName(element.getParent(), variableName);
}
