content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.hive.service;
  
  public class ServiceUtils {
  
    /*
     * Get the index separating the user name from domain name (the user's name up
     * to the first '/' or '@').
     *
     * @param userName full user name.
     * @return index of domain match or -1 if not found
     */
    public static int indexOfDomainMatch(String userName) {
      if (userName == null) {
        return -1;
      }
  
      int idx = userName.indexOf('/');
      int idx2 = userName.indexOf('@');
      int endIdx = Math.min(idx, idx2); // Use the earlier match.
      // Unless at least one of '/' or '@' was not found, in
      // which case, user the latter match.
      if (endIdx == -1) {
        endIdx = Math.max(idx, idx2);
      }
      return endIdx;
    }
  }
  