001/**
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *     http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */
018
019package org.apache.hadoop.hbase.security;
020
021import org.apache.yetus.audience.InterfaceAudience;
022import org.apache.yetus.audience.InterfaceStability;
023
024/**
025 * Security related generic utility methods.
026 */
027@InterfaceAudience.Private
028@InterfaceStability.Evolving
029public class SecurityUtil {
030
031  /**
032   * Get the user name from a principal
033   */
034  public static String getUserFromPrincipal(final String principal) {
035    int i = principal.indexOf("/");
036    if (i == -1) {
037      i = principal.indexOf("@");
038    }
039    return (i > -1) ? principal.substring(0, i) : principal;
040  }
041
042  /**
043   * Get the user name from a principal
044   */
045  public static String getPrincipalWithoutRealm(final String principal) {
046    int i = principal.indexOf("@");
047    return (i > -1) ? principal.substring(0, i) : principal;
048  }
049}