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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.dbcp2;
18  
19  import org.apache.commons.logging.Log;
20  import org.apache.commons.pool2.SwallowedExceptionListener;
21  
22  /**
23   * Class for logging swallowed exceptions.
24   *
25   * @since 2.0
26   */
27  public class SwallowedExceptionLogger implements SwallowedExceptionListener {
28  
29      private final Log log;
30      private final boolean logExpiredConnections;
31  
32      /**
33       * Create a SwallowedExceptionLogger with the given logger. By default, expired connection logging is turned on.
34       *
35       * @param log
36       *            logger
37       */
38      public SwallowedExceptionLogger(final Log log) {
39          this(log, true);
40      }
41  
42      /**
43       * Create a SwallowedExceptionLogger with the given logger and expired connection logging property.
44       *
45       * @param log
46       *            logger
47       * @param logExpiredConnections
48       *            false suppresses logging of expired connection events
49       */
50      public SwallowedExceptionLogger(final Log log, final boolean logExpiredConnections) {
51          this.log = log;
52          this.logExpiredConnections = logExpiredConnections;
53      }
54  
55      @Override
56      public void onSwallowException(final Exception e) {
57          if (logExpiredConnections || !(e instanceof LifetimeExceededException)) {
58              log.warn(Utils.getMessage("swallowedExceptionLogger.onSwallowedException"), e);
59          }
60      }
61  }