hive/service/ServiceUtils.java

0001 /**
0002  * Licensed to the Apache Software Foundation (ASF) under one
0003  * or more contributor license agreements.  See the NOTICE file
0004  * distributed with this work for additional information
0005  * regarding copyright ownership.  The ASF licenses this file
0006  * to you under the Apache License, Version 2.0 (the
0007  * "License"); you may not use this file except in compliance
0008  * with the License.  You may obtain a copy of the License at
0009  *
0010  *     http://www.apache.org/licenses/LICENSE-2.0
0011  *
0012  * Unless required by applicable law or agreed to in writing, software
0013  * distributed under the License is distributed on an "AS IS" BASIS,
0014  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
0015  * See the License for the specific language governing permissions and
0016  * limitations under the License.
0017  */
0018 package org.apache.hive.service;
0019
0020 public class ServiceUtils {
0021
0022   /*
0023    * Get the index separating the user name from domain name (the user's name up
0024    * to the first '/' or '@').
0025    *
0026    * @param userName full user name.
0027    * @return index of domain match or -1 if not found
0028    */
0029   public static int indexOfDomainMatch(String userName) {
0030     if (userName == null) {
0031       return -1;
0032     }
0033
0034     int idx = userName.indexOf('/');
0035     int idx2 = userName.indexOf('@');
0036     int endIdx = Math.min(idx, idx2); // Use the earlier match.
0037     // Unless at least one of '/' or '@' was not found, in
0038     // which case, user the latter match.
0039     if (endIdx == -1) {
0040       endIdx = Math.max(idx, idx2);
0041     }
0042     return endIdx;
0043   }
0044 }