public ElementDefn getElementForPath(String pathname, Definitions definitions, String purpose)
throws Exception {
String[] path = pathname.split("\\.");
if (!path[0].equals(getName()))
throw new Exception(
"Element Path '" + pathname + "' is not legal in this context (" + purpose + ")");
ElementDefn res = this;
for (int i = 1; i < path.length; i++) {
String en = path[i];
if (en.length() == 0) throw new Exception("Improper path " + pathname);
ElementDefn t = null;
if (res.typeCode().startsWith("@")) {
res = this.getElementForPath(res.typeCode().substring(1), definitions, purpose);
} else if (definitions.dataTypeIsSharedInfo(res.typeCode())) {
res = definitions.getElementDefn(res.typeCode());
} else if (definitions.hasType(res.typeCode())) {
res = definitions.getElementDefn(res.typeCode());
}
t = res.getElementByName(en);
if (t == null) {
throw new Exception("unable to resolve " + pathname);
}
res = t;
}
return res;
}
public ElementDefn getElementByName(
String name, boolean throughChoice, Definitions definitions, String purpose)
throws Exception {
String n = name.contains(".") ? name.substring(0, name.indexOf(".")) : name;
String t = name.contains(".") ? name.substring(name.indexOf(".") + 1) : null;
if (n.equals(this.name) && t != null) return getElementByName(t);
ElementDefn focus = this;
if (typeCode().startsWith("@")) {
String s = typeCode().substring(1);
focus = definitions.getElementDefn(s.substring(0, s.indexOf(".")));
focus = focus.getElementForPath(s, definitions, purpose, throughChoice);
}
for (int i = focus.elements.size() - 1; i >= 0; i--) {
ElementDefn e = focus.elements.get(i);
if (nameMatches(n, e, throughChoice, definitions))
return t == null ? e : e.getElementByName(t);
}
return null;
}