How to use

fromStringEntries

method

in

alluxio.security.authorization.AccessControlList

 /**
  * Deserialize an AccessControlList object.
  * @param jsonParser the json parser
  * @param deserializationContext deserializationcontext
  * @return
  * @throws IOException
  * @throws JsonProcessingException
  */
 @Override
 public AccessControlList deserialize(JsonParser jsonParser,
   DeserializationContext deserializationContext) throws IOException, JsonProcessingException {
  JsonNode node = jsonParser.getCodec().readTree(jsonParser);
  String owner = node.get(OWNER_FIELD).asText();
  String owningGroup = node.get(OWNING_GROUP_FIELD).asText();
  List<String> stringEntries = new ArrayList<>();
  Iterator<JsonNode> nodeIterator = node.get(STRING_ENTRY_FIELD).elements();
  while (nodeIterator.hasNext()) {
   stringEntries.add(nodeIterator.next().asText());
  }
  return AccessControlList.fromStringEntries(owner, owningGroup, stringEntries);
 }
}

List<String> stringEntries = Arrays.asList("user::rw-", "group::r--", "other::rwx");
AccessControlList acl =
  AccessControlList.fromStringEntries(userName, groupName, stringEntries);
result.setAcl(acl);
List<String> defaultStringEntries =
  Arrays.asList("default:user::rw-", "default:group::r--", "default:other::rwx");
result.setDefaultAcl((DefaultAccessControlList) AccessControlList
  .fromStringEntries(userName, groupName, defaultStringEntries));
return result;

 @Test
 public void createACLFingeprint() {
  UfsStatus status = new UfsFileStatus(CommonUtils.randomAlphaNumString(10),
    CommonUtils.randomAlphaNumString(10), mRandom.nextLong(), mRandom.nextLong(),
    CommonUtils.randomAlphaNumString(10), CommonUtils.randomAlphaNumString(10),
    (short) mRandom.nextInt());
  AccessControlList acl = AccessControlList.fromStringEntries(
    CommonUtils.randomAlphaNumString(10),
    CommonUtils.randomAlphaNumString(10),
    Arrays.asList("user::rw-", "group::r--", "other::rwx"));
  Fingerprint fp = Fingerprint.create(CommonUtils.randomAlphaNumString(10), status, acl);
  String expected = fp.serialize();
  Assert.assertNotNull(expected);
  Assert.assertEquals("user::rw-,group::r--,other::rwx",
    Fingerprint.parse(expected).getTag(Fingerprint.Tag.ACL));
  Assert.assertEquals(expected, Fingerprint.parse(expected).serialize());
 }
}