org.elasticsearch.hadoop.handler.impl.LogRenderer Maven / Gradle / Ivy
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* this work for additional information regarding copyright
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* 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
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package org.elasticsearch.hadoop.handler.impl;
import java.util.List;
import org.elasticsearch.hadoop.handler.Exceptional;
public abstract class LogRenderer {
public String renderLog(I entry) {
// Render the previous handler messages
List handlerMessages = entry.previousHandlerMessages();
String tailMessage;
if (!handlerMessages.isEmpty()) {
StringBuilder tail = new StringBuilder("Previous handler messages:");
for (String handlerMessage : handlerMessages) {
tail.append("\n\t").append(handlerMessage);
}
tailMessage = tail.toString();
} else {
tailMessage = "";
}
String logData = convert(entry);
// Log the failure
return logData + "\n" + tailMessage;
}
public abstract String convert(I entry);
}