private void processMoreDimensionedVariantsDeref(
Element fieldEl, String valueExpr, DerefValue deref, String derefPart)
throws IndexerConfException {
// The variant dimension is specified in a syntax like "+var1=boo,+var2"
boolean validConfig = true;
Map<String, String> dimensions = new HashMap<String, String>();
for (String op : COMMA_SPLITTER.split(derefPart)) {
if (op.length() > 1 && op.startsWith("+")) {
final Iterator<String> keyAndValue = EQUAL_SIGN_SPLITTER.split(op).iterator();
if (keyAndValue.hasNext()) {
final String key = keyAndValue.next().substring(1); // ignore leading '+'
if (keyAndValue.hasNext()) {
// there is an equal sign -> key and value
final String value = keyAndValue.next();
dimensions.put(key, value);
} else {
// no equal sign -> only key without value
dimensions.put(key, null);
}
} else {
// nothing at all?
validConfig = false;
break;
}
} else {
validConfig = false;
break;
}
}
if (dimensions.size() == 0) validConfig = false;
if (!validConfig) {
throw new IndexerConfException(
"Invalid specification of variants to follow: '"
+ derefPart
+ "', deref expression: '"
+ valueExpr
+ "' "
+ "at "
+ LocationAttributes.getLocation(fieldEl));
}
deref.addForwardVariantFollow(dimensions);
}
