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Kafka client whose producer requires explicit encoders.
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/**
* Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE
* file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file
* to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*/
package org.apache.kafka.clients.producer.internals;
import org.apache.kafka.clients.producer.Callback;
import org.apache.kafka.clients.producer.RecordMetadata;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class ErrorLoggingCallback implements Callback {
private static final Logger log = LoggerFactory.getLogger(ErrorLoggingCallback.class);
private String topic;
private byte[] key;
private byte[] value;
private boolean logAsString;
public ErrorLoggingCallback(String topic, byte[] key, byte[] value, boolean logAsString) {
this.topic = topic;
this.key = key;
this.value = value;
this.logAsString = logAsString;
}
public void onCompletion(RecordMetadata metadata, Exception e) {
if (e != null) {
String keyString = (key == null) ? "null" :
logAsString ? new String(key) : key.length + " bytes";
String valueString = (value == null) ? "null" :
logAsString ? new String(value) : value.length + " bytes";
log.error("Error when sending message to topic {} with key: {}, value: {} with error: {}",
topic, keyString, valueString, e.getMessage());
}
}
}
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