*/
public boolean credentialPrecondition(final CrawlURI curi) {
boolean result = false;
CredentialStore cs = getCredentialStore();
if (cs == null) {
logger.severe("No credential store for " + curi);
return result;
}
for (Credential c: cs.getAll()) {
if (c.isPrerequisite(curi)) {
// This credential has a prereq. and this curi is it. Let it
// through. Add its avatar to the curi as a mark. Also, does
// this curi need to be posted? Note, we do this test for
// is it a prereq BEFORE we do the check that curi is of the