@Override
    public String toString() {
      String familiesString = toFamiliesString(families, family, qualifier);
      String[] params = new String[] { namespace != null ? "namespace=" + namespace : null,
        tableName != null ? "table=" + tableName.getNameWithNamespaceInclAsString() : null,
        familiesString.length() > 0 ? "family=" + familiesString : null,
        extraParams.isEmpty() ? null : concatenateExtraParams() };
      return Joiner.on(",").skipNulls().join(params);
    }
Represents the result of an authorization check for logging and error reporting.
hbase-server/src/main/java/org/apache/hadoop/hbase/security/access/AuthResult.java