/*
* Returns a keystore entry alias and a list of target keystores.
* When the supplied alias prefix identifies a keystore then that single
* keystore is returned. When no alias prefix is supplied then all the
* keystores are returned.
*/
private AbstractMap.SimpleEntry<String, Collection<KeyStore>> getKeystoresForReading(
String alias) {
String[] splits = alias.split(this.entryNameSeparatorRegEx, 2);
if (splits.length == 2) { // prefixed alias
KeyStore keystore = keystores.get(splits[0]);
if (keystore != null) {
return new AbstractMap.SimpleEntry<>(
splits[1], (Collection<KeyStore>) Collections.singleton(keystore));
}
} else if (splits.length == 1) { // unprefixed alias
// Check all keystores for the first occurrence of the alias
return new AbstractMap.SimpleEntry<>(alias, keystores.values());
}
return new AbstractMap.SimpleEntry<>(
"", (Collection<KeyStore>) Collections.<KeyStore>emptyList());
}
/**
* Gets the valid offsets during this transition.
*
* <p>A gap will return an empty list, while an overlap will return both offsets.
*
* @return the list of valid offsets
*/
List<ZoneOffset> getValidOffsets() {
if (isGap()) {
return Collections.emptyList();
}
return Arrays.asList(getOffsetBefore(), getOffsetAfter());
}