com.rabbitmq.perf.RelaxedExceptionHandler Maven / Gradle / Ivy
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// Copyright (c) 2018-2019 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.AlreadyClosedException;
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.
*
* This exception handler is also less noisy with {@link AlreadyClosedException},
* which can typically happen on shutdown or during connection recovery.
*
* @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())
)) ||
(e instanceof AlreadyClosedException &&
e.getMessage() != null &&
e.getMessage().contains("connection is already closed due to clean connection shutdown")
);
}
@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);
}
}
}