ctubbsii commented on code in PR #6402:
URL: https://github.com/apache/accumulo/pull/6402#discussion_r3555031299
##########
core/src/main/java/org/apache/accumulo/core/iterators/user/VisibilityFilter.java:
##########
@@ -136,14 +157,25 @@ public IteratorOptions describeOptions() {
io.addNamedOption(FILTER_INVALID_ONLY,
"if 'true', the iterator is instructed to ignore the authorizations
and"
+ " only filter invalid visibility labels (default: false)");
- io.addNamedOption(AUTHS,
- "the serialized set of authorizations to filter against (default:
empty"
- + " string, accepts only entries visible by all)");
Review Comment:
Can't remove this option. The configuration parameter is the main API for
this class. Removing or renaming it breaks it.
##########
core/src/main/java/org/apache/accumulo/core/iterators/user/VisibilityFilter.java:
##########
@@ -136,14 +157,25 @@ public IteratorOptions describeOptions() {
io.addNamedOption(FILTER_INVALID_ONLY,
"if 'true', the iterator is instructed to ignore the authorizations
and"
+ " only filter invalid visibility labels (default: false)");
- io.addNamedOption(AUTHS,
- "the serialized set of authorizations to filter against (default:
empty"
- + " string, accepts only entries visible by all)");
+ io.addNamedOption(NUM_AUTHS,
+ "The number of serialized authorizations to filter against (default
0)");
+ io.addUnnamedOption(AUTH_PREFIX
+ + "N, where the value is a serialized set of authorizations. N must be
between zero and NUM_AUTHS.");
Review Comment:
I'm not sure these descriptions really communicate how these are used. Is
the idea that you specify some config like:
```
numAuths = 3
auth_0 = a,b,c
auth_1 = c,b,d
auth_2 = a,c,z
```
And then it does something like:
```
if (entry.evaluateUsing(auth_0) && entry..evaluateUsing(auth_1) &&
entry..evaluateUsing(auth_2)) {
return entry;
}
```
Is the idea to replace multiple executions of the iterator with a single one?
Instead, I think it might make sense to have a config that preserves the
existing behavior, and extends the existing config:
```
auths = a,b,c;c,b,d;a,c,z
```
This is simpler, and backwards compatible. The description can be extended
to say: "if multiple serialized sets are configured, separated by semi-colons,
then entries are accepted only if they would be accepted by each of the sets
independently"
##########
core/src/main/java/org/apache/accumulo/core/clientImpl/access/BytesAccess.java:
##########
@@ -93,6 +95,19 @@ public boolean canAccess(byte[] expression) {
}
}
+ public static BytesEvaluator newEvaluator(Collection<Authorizations>
authsSet) {
+ Collection<Set<String>> convertedAuths = new ArrayList<>();
+ for (Authorizations auths : authsSet) {
+ List<byte[]> bytesAuths = auths.getAuthorizations();
+ Set<String> stringAuths = new HashSet<>(bytesAuths.size());
+ for (var auth : bytesAuths) {
+ stringAuths.add(new String(auth, ISO_8859_1));
Review Comment:
A comment is warranted here to explain why ISO-8859-1 is used.
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