LoggingOutputStream.java

/*
 * Quartz
 * Copyright (c) 2015, Minecrell <https://github.com/Minecrell>
 *
 * Based on Sponge and SpongeAPI, licensed under the MIT License (MIT).
 * Copyright (c) SpongePowered.org <http://www.spongepowered.org>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package net.minecrell.quartz.launch.console;

import org.apache.logging.log4j.Level;
import org.apache.logging.log4j.Logger;

import java.io.ByteArrayOutputStream;
import java.io.IOException;

public class LoggingOutputStream extends ByteArrayOutputStream {

    private static final String SEPARATOR = System.getProperty("line.separator");
    private final Logger logger;
    private final Level level;

    public LoggingOutputStream(Logger logger, Level level) {
        this.logger = logger;
        this.level = level;
    }

    @Override
    public void flush() throws IOException {
        String message = toString();
        super.reset();

        if (!message.isEmpty() && !message.equals(SEPARATOR)) {
            logger.log(level, message);
        }
    }

}