    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 * Unless required by applicable law or agreed to in writing, software
    012 * distributed under the License is distributed on an "AS IS" BASIS,
    013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 * See the License for the specific language governing permissions and
    015 * limitations under the License.
    016 */
    017package org.apache.commons.dbcp2;
    018
    019import org.apache.commons.logging.Log;
    020import org.apache.commons.pool2.SwallowedExceptionListener;
    021
    022/**
    023 * Class for logging swallowed exceptions.
    024 * @since 2.0
    025 */
    026public class SwallowedExceptionLogger implements SwallowedExceptionListener{
    027
    028    private final Log log;
    029    private final boolean logExpiredConnections;
    030
    031    /**
    032     * Create a SwallowedExceptionLogger with the given logger.  By default,
    033     * expired connection logging is turned on.
    034     *
    035     * @param log logger
    036     */
    037    public SwallowedExceptionLogger(final Log log) {
    038        this(log, true);
    039    }
    040
    041    /**
    042     * Create a SwallowedExceptionLogger with the given logger and expired
    043     * connection logging property.
    044     *
    045     * @param log logger
    046     * @param logExpiredConnections false suppresses logging of expired connection events
    047     */
    048    public SwallowedExceptionLogger(final Log log, final boolean logExpiredConnections) {
    049        this.log = log;
    050        this.logExpiredConnections = logExpiredConnections;
    051    }
    052
    053    @Override
    054    public void onSwallowException(final Exception e) {
    055        if (logExpiredConnections || !(e instanceof LifetimeExceededException)) {
    056            log.warn(Utils.getMessage(
    057                    "swallowedExceptionLogger.onSwallowedException"), e);
    058        }
    059    }
    060}