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, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.directory.ldap.client.api; 021 022 023import org.apache.directory.api.ldap.model.constants.SchemaConstants; 024import org.apache.directory.api.ldap.model.exception.LdapException; 025import org.apache.directory.api.ldap.model.name.Dn; 026 027 028/** 029 * An implementation of {@link LdapConnectionValidator} that attempts a simple 030 * lookup on the rootDSE. 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034public final class LookupLdapConnectionValidator implements LdapConnectionValidator 035{ 036 /** 037 * Returns true if <code>connection</code> is connected, authenticated, and 038 * a lookup on the rootDSE returns a non-null response. 039 * 040 * @param connection The connection to validate 041 * @return True, if the connection is still valid 042 */ 043 @Override 044 public boolean validate( LdapConnection connection ) 045 { 046 try 047 { 048 return connection.isConnected() 049 && connection.isAuthenticated() 050 && ( connection.lookup( Dn.ROOT_DSE, SchemaConstants.NO_ATTRIBUTE ) != null ); 051 } 052 catch ( LdapException e ) 053 { 054 return false; 055 } 056 } 057}