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.server.core.integ;
21
22
23 import org.apache.directory.api.ldap.model.entry.Entry;
24 import org.apache.directory.api.ldap.model.exception.LdapException;
25 import org.apache.directory.api.ldap.model.exception.LdapOperationErrorException;
26 import org.apache.directory.server.core.api.filtering.EntryFilter;
27 import org.apache.directory.server.core.api.filtering.EntryFilteringCursor;
28 import org.apache.directory.server.core.api.interceptor.BaseInterceptor;
29 import org.apache.directory.server.core.api.interceptor.Interceptor;
30 import org.apache.directory.server.core.api.interceptor.context.SearchOperationContext;
31
32
33 /**
34 * An {@link Interceptor} that fakes a specified amount of delay to each
35 * search iteration so we can make sure search time limits are adhered to.
36 *
37 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
38 */
39 public class DelayInducingInterceptor extends BaseInterceptor
40 {
41 private Long delayMillis;
42
43
44 public DelayInducingInterceptor()
45 {
46 super( "DelayInterceptor" );
47 }
48
49
50 @Override
51 public EntryFilteringCursor search( SearchOperationContext searchContext ) throws LdapException
52 {
53 EntryFilteringCursor cursor = next( searchContext );
54 cursor.addEntryFilter( new EntryFilter()
55 {
56 /**
57 * {@inheritDoc}
58 */
59 public boolean accept( SearchOperationContext operation, Entry result ) throws LdapException
60 {
61 if ( delayMillis != null )
62 {
63 try
64 {
65 Thread.sleep( delayMillis );
66 }
67 catch ( InterruptedException ie )
68 {
69 throw new LdapOperationErrorException( ie.getMessage() );
70 }
71 }
72
73 return true;
74 }
75
76
77 /**
78 * {@inheritDoc}
79 */
80 public String toString( String tabs )
81 {
82 return tabs + "DelayInducingFilter";
83 }
84 } );
85
86 return cursor;
87 }
88
89
90 public void setDelayMillis( long delayMillis )
91 {
92 if ( delayMillis <= 0 )
93 {
94 this.delayMillis = null;
95 }
96
97 this.delayMillis = delayMillis;
98 }
99 }