| /* |
| * 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.ki.realm.ldap; |
| |
| import java.util.Collection; |
| import java.util.HashSet; |
| import java.util.Set; |
| import javax.naming.NamingEnumeration; |
| import javax.naming.NamingException; |
| import javax.naming.directory.Attribute; |
| import javax.naming.ldap.LdapContext; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Utility class providing static methods to make working with LDAP |
| * easier. |
| * |
| * @author Jeremy Haile |
| * @since 0.2 |
| */ |
| public class LdapUtils { |
| |
| /** Private internal log instance. */ |
| private static final Logger log = LoggerFactory.getLogger(LdapUtils.class); |
| |
| /** |
| * Private constructor to prevent instantiation |
| */ |
| private LdapUtils() { |
| } |
| |
| /** |
| * Closes an LDAP context, logging any errors, but not throwing |
| * an exception if there is a failure. |
| * |
| * @param ctx the LDAP context to close. |
| */ |
| public static void closeContext(LdapContext ctx) { |
| try { |
| if (ctx != null) { |
| ctx.close(); |
| } |
| } catch (NamingException e) { |
| if (log.isErrorEnabled()) { |
| log.error("Exception while closing LDAP context. ", e); |
| } |
| } |
| } |
| |
| |
| /** |
| * Helper method used to retrieve all attribute values from a particular context attribute. |
| * |
| * @param attr the LDAP attribute. |
| * @return the values of the attribute. |
| * @throws javax.naming.NamingException if there is an LDAP error while reading the values. |
| */ |
| public static Collection<String> getAllAttributeValues(Attribute attr) throws NamingException { |
| Set<String> values = new HashSet<String>(); |
| for (NamingEnumeration e = attr.getAll(); e.hasMore();) { |
| String value = (String) e.next(); |
| values.add(value); |
| } |
| return values; |
| } |
| |
| |
| } |