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,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 *
19 */
20 package org.apache.directory.ldap.client.api;
21
22
23 import org.apache.directory.api.ldap.model.constants.SchemaConstants;
24 import org.apache.directory.api.ldap.model.exception.LdapException;
25 import org.apache.directory.api.ldap.model.name.Dn;
26
27
28 /**
29 * An implementation of {@link LdapConnectionValidator} that attempts a simple
30 * lookup on the rootDSE.
31 *
32 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
33 */
34 public final class LookupLdapConnectionValidator implements LdapConnectionValidator
35 {
36 /**
37 * Returns true if <code>connection</code> is connected, authenticated, and
38 * a lookup on the rootDSE returns a non-null response.
39 *
40 * @param connection The connection to validate
41 * @return True, if the connection is still valid
42 */
43 @Override
44 public boolean validate( LdapConnection connection )
45 {
46 try
47 {
48 return connection.isConnected()
49 && connection.isAuthenticated()
50 && ( connection.lookup( Dn.ROOT_DSE, SchemaConstants.NO_ATTRIBUTE ) != null );
51 }
52 catch ( LdapException e )
53 {
54 return false;
55 }
56 }
57 }