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.dns.service;
21
22
23 import java.util.List;
24
25 import org.apache.directory.server.dns.messages.ResourceRecord;
26 import org.apache.directory.server.dns.store.RecordStore;
27 import org.apache.mina.common.IoSession;
28 import org.apache.mina.handler.chain.IoHandlerCommand;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
31
32
33 /**
34 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
35 * @version $Rev: 547132 $, $Date: 2007-06-14 07:43:03 +0200 (Do, 14 Jun 2007) $
36 */
37 public class MonitorContext implements IoHandlerCommand
38 {
39 /** the log for this class */
40 private static final Logger log = LoggerFactory.getLogger( MonitorContext.class );
41
42 private String contextKey = "context";
43
44
45 public void execute( NextCommand next, IoSession session, Object message ) throws Exception
46 {
47 if ( log.isDebugEnabled() )
48 {
49 try
50 {
51 DnsContext dnsContext = ( DnsContext ) session.getAttribute( getContextKey() );
52 RecordStore store = dnsContext.getStore();
53 List<ResourceRecord> records = dnsContext.getResourceRecords();
54
55 StringBuffer sb = new StringBuffer();
56 sb.append( "Monitoring context:" );
57 sb.append( "\n\t" + "store: " + store );
58 sb.append( "\n\t" + "records: " + records );
59
60 log.debug( sb.toString() );
61 }
62 catch ( Exception e )
63 {
64 // This is a monitor. No exceptions should bubble up.
65 log.error( "Error in context monitor", e );
66 }
67 }
68
69 next.execute( session, message );
70 }
71
72
73 protected String getContextKey()
74 {
75 return ( this.contextKey );
76 }
77 }