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A Java-based performance testing tool for RabbitMQ.

There is a newer version: 2.22.1

// Copyright (c) 2018 Pivotal Software, Inc.  All rights reserved.
//
// This software, the RabbitMQ Java client library, is triple-licensed under the
// Mozilla Public License 1.1 ("MPL"), the GNU General Public License version 2
// ("GPL") and the Apache License version 2 ("ASL"). For the MPL, please see
// LICENSE-MPL-RabbitMQ. For the GPL, please see LICENSE-GPL2.  For the ASL,
// please see LICENSE-APACHE2.
//
// This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND,
// either express or implied. See the LICENSE file for specific language governing
// rights and limitations of this software.
//
// If you have any questions regarding licensing, please contact us at
// [email protected].

package com.rabbitmq.perf;

import com.rabbitmq.client.impl.DefaultExceptionHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;

/**
 * Relaxed version of the {@link DefaultExceptionHandler} that logs
 * network exceptions as info instead of warn.
 * 
 * Connections opened by PerfTest can be blocked, especially producer
 * connections. On shutdown, they may take some time to close, so PerfTest
 * closes the connection with a timeout. This can result in noisy logs,
 * which are not useful here, so this exception handler is a bit more
 * relaxed for those logs.
 *
 * @since 2.5.0
 */
public class RelaxedExceptionHandler extends DefaultExceptionHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(RelaxedExceptionHandler.class);

    private static boolean isSocketClosedOrConnectionReset(Throwable e) {
        return e instanceof IOException &&
                ("Connection reset".equals(e.getMessage()) || "Socket closed".equals(e.getMessage()) ||
                        "Connection reset by peer".equals(e.getMessage())
                );
    }

    @Override
    protected void log(String message, Throwable e) {
        if (isSocketClosedOrConnectionReset(e)) {
            // we don't want to get too dramatic about those
            LOGGER.info("{} (Exception message: {})", message, e.getMessage());
        } else {
            LOGGER.error(message, e);
        }
    }
}