/*
* This file is part of ELKI:
* Environment for Developing KDD-Applications Supported by Index-Structures
*
* Copyright (C) 2017
* ELKI Development Team
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package de.lmu.ifi.dbs.elki.logging;
import java.util.logging.Formatter;
import java.util.logging.LogRecord;
import de.lmu.ifi.dbs.elki.logging.progress.ProgressLogRecord;
/**
* A formatter to simply retrieve the message of an LogRecord without printing
* origin information. Usually, the formatter will try to ensure a newline at the end.
*
* @author Arthur Zimek
* @since 0.2
*/
public class MessageFormatter extends Formatter {
/**
* Constructor.
*/
public MessageFormatter() {
super();
}
/**
* Retrieves the message as it is set in the given LogRecord.
*/
@Override
public String format(LogRecord record) {
String msg = record.getMessage();
if(msg.length() > 0) {
if (record instanceof ProgressLogRecord) {
return msg;
}
if(msg.endsWith(OutputStreamLogger.NEWLINE)) {
return msg;
}
}
return msg + OutputStreamLogger.NEWLINE;
}
}