1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.hadoop.hbase.security; 20 21 import org.apache.hadoop.classification.InterfaceAudience; 22 23 /** 24 * Security related generic utility methods. 25 */ 26 @InterfaceAudience.Private 27 public class SecurityUtil { 28 29 /** 30 * Get the user name from a principal 31 */ 32 public static String getUserFromPrincipal(final String principal) { 33 int i = principal.indexOf("/"); 34 if (i == -1) { 35 i = principal.indexOf("@"); 36 } 37 return (i > -1) ? principal.substring(0, i) : principal; 38 } 39 }