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