sk.antons.util.logging.appender.MessageAppender Maven / Gradle / Ivy
/*
* Copyright 2015 Anton Straka
*
* Licensed 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 sk.antons.util.logging.appender;
import java.io.PrintWriter;
import java.io.StringWriter;
import java.util.logging.LogRecord;
/**
* Appends record message. (record.getMessage())
* If throws is defined, it is also appended.
* @author antons
*/
public class MessageAppender extends AbstractAppender {
@Override
protected String format(LogRecord record) {
if(record == null) return null;
if(record.getThrown() != null) {
StringBuilder sb = new StringBuilder();
sb.append(record.getMessage());
sb.append("\n ").append(record.getThrown()).append(' ');
try {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
record.getThrown().printStackTrace(pw);
pw.close();
sb.append(sw.toString());
} catch(Exception ex) { }
sb.append("\n");
return sb.toString();
} else {
return record.getMessage();
}
}
}