/**
* get Variables from the specified vocabulary
*
* @param vocab look for this vocabulary
* @return Variables from the specified vocabulary, may be null
*/
public ThreddsMetadata.Variables getVariables(String vocab) {
ThreddsMetadata.Variables result = new ThreddsMetadata.Variables(vocab, null, null, null, null);
if (variables == null) return result;
for (ThreddsMetadata.Variables vs : variables) {
if (vs.getVocabulary().equals(vocab)) result.getVariableList().addAll(vs.getVariableList());
}
return result;
}
