package org.dancres.blitz.entry;

import java.io.IOException;

public class Types {
    /**
       Despite appearances, this method doesn't ever need to be called
       within a DiskTxn because it will only ever be invoked as the indirect
       result of a write.  A write forces loading/creation of the appropriate
       EntryRepository and <B>then</B> generates an event which can wake
       up the notify system or blocked match requests.
     */
    public static boolean isSubtype(String aType, String aSubtype) {

        if (aType.equals(aSubtype))
            return true;

        EntryRepository myRepos = null;

        try {
            myRepos = EntryRepositoryFactory.get().find(aType);
        } catch (IOException anIOE) {
            // We only ever operate off in-memory entry repos so we never
            // hit disk which means we won't get a Dbe
        }

        if (myRepos != null) {
            String[] theSubtypes = myRepos.getSubtypes();

            for (int i = 0 ; i < theSubtypes.length; i++) {
                if (theSubtypes[i].equals(aSubtype))
                    return true;
            }
        }

        return false;
    }
}