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    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.mina.filter;
    21
    22  import org.apache.mina.common.IdleStatus;
    23  import org.apache.mina.common.IoFilterAdapter;
    24  import org.apache.mina.common.IoSession;
    25  import org.apache.mina.util.SessionLog;
    26  import org.slf4j.Logger;
    27
    28  /**
    29   * Logs all MINA protocol events to {@link Logger}.
    30   *
    31   * @author The Apache Directory Project (mina-dev@directory.apache.org)
    32   * @version $Rev: 587373 $, $Date: 2007-10-23 04:54:05 +0200 (Tue, 23 Oct 2007) $
    33   *
    34   * @see SessionLog
    35   */
    36  public class LoggingFilter extends IoFilterAdapter {
    37      /**
    38       * Session attribute key: prefix string
    39       */
    40      public static final String PREFIX = SessionLog.PREFIX;
    41
    42      /**
    43       * Session attribute key: {@link Logger}
    44       */
    45      public static final String LOGGER = SessionLog.LOGGER;
    46
    47      /**
    48       * Creates a new instance.
    49       */
    50      public LoggingFilter() {
    51      }
    52
    53      public void sessionCreated(NextFilter nextFilter, IoSession session) {
    54          SessionLog.info(session, "CREATED");
    55          nextFilter.sessionCreated(session);
    56      }
    57
    58      public void sessionOpened(NextFilter nextFilter, IoSession session) {
    59          SessionLog.info(session, "OPENED");
    60          nextFilter.sessionOpened(session);
    61      }
    62
    63      public void sessionClosed(NextFilter nextFilter, IoSession session) {
    64          SessionLog.info(session, "CLOSED");
    65          nextFilter.sessionClosed(session);
    66      }
    67
    68      public void sessionIdle(NextFilter nextFilter, IoSession session,
    69              IdleStatus status) {
    70          if (SessionLog.isInfoEnabled(session)) {
    71              SessionLog.info(session, "IDLE: " + status);
    72          }
    73          nextFilter.sessionIdle(session, status);
    74      }
    75
    76      public void exceptionCaught(NextFilter nextFilter, IoSession session,
    77              Throwable cause) {
    78          if (SessionLog.isWarnEnabled(session)) {
    79              SessionLog.warn(session, "EXCEPTION:", cause);
    80          }
    81          nextFilter.exceptionCaught(session, cause);
    82      }
    83
    84      public void messageReceived(NextFilter nextFilter, IoSession session,
    85              Object message) {
    86          if (SessionLog.isInfoEnabled(session)) {
    87              SessionLog.info(session, "RECEIVED: " + message);
    88          }
    89          nextFilter.messageReceived(session, message);
    90      }
    91
    92      public void messageSent(NextFilter nextFilter, IoSession session,
    93              Object message) {
    94          if (SessionLog.isInfoEnabled(session)) {
    95              SessionLog.info(session, "SENT: " + message);
    96          }
    97          nextFilter.messageSent(session, message);
    98      }
    99
    100     public void filterWrite(NextFilter nextFilter, IoSession session,
    101             WriteRequest writeRequest) {
    102         if (SessionLog.isInfoEnabled(session)) {
    103             SessionLog.info(session, "WRITE: " + writeRequest);
    104         }
    105         nextFilter.filterWrite(session, writeRequest);
    106     }
    107
    108     public void filterClose(NextFilter nextFilter, IoSession session)
    109             throws Exception {
    110         SessionLog.info(session, "CLOSE");
    111         nextFilter.filterClose(session);
    112     }
    113 }