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 */
020 package org.apache.directory.server.dns.service;
021
022
023 import java.util.List;
024
025 import org.apache.directory.server.dns.messages.ResourceRecord;
026 import org.apache.directory.server.dns.store.RecordStore;
027 import org.apache.directory.server.i18n.I18n;
028 import org.apache.mina.core.session.IoSession;
029 import org.apache.mina.handler.chain.IoHandlerCommand;
030 import org.slf4j.Logger;
031 import org.slf4j.LoggerFactory;
032
033
034 /**
035 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
036 * @version $Rev: 901657 $, $Date: 2010-01-21 13:27:15 +0200 (Thu, 21 Jan 2010) $
037 */
038 public class MonitorContext implements IoHandlerCommand
039 {
040 /** the log for this class */
041 private static final Logger log = LoggerFactory.getLogger( MonitorContext.class );
042
043 private String contextKey = "context";
044
045
046 public void execute( NextCommand next, IoSession session, Object message ) throws Exception
047 {
048 if ( log.isDebugEnabled() )
049 {
050 try
051 {
052 DnsContext dnsContext = ( DnsContext ) session.getAttribute( getContextKey() );
053 RecordStore store = dnsContext.getStore();
054 List<ResourceRecord> records = dnsContext.getResourceRecords();
055
056 StringBuffer sb = new StringBuffer();
057 sb.append( "Monitoring context:" );
058 sb.append( "\n\t" + "store: " + store );
059 sb.append( "\n\t" + "records: " + records );
060
061 log.debug( sb.toString() );
062 }
063 catch ( Exception e )
064 {
065 // This is a monitor. No exceptions should bubble up.
066 log.error( I18n.err( I18n.ERR_154 ), e );
067 }
068 }
069
070 next.execute( session, message );
071 }
072
073
074 protected String getContextKey()
075 {
076 return ( this.contextKey );
077 }
078 }