fr.gael.dhus.util.LoggingOutputStream.java Source code

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Here is the source code for fr.gael.dhus.util.LoggingOutputStream.java

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/*
 * Data Hub Service (DHuS) - For Space data distribution.
 * Copyright (C) 2013,2014,2015 GAEL Systems
 *
 * This file is part of DHuS software sources.
 *
 * 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 fr.gael.dhus.util;

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

import org.apache.commons.logging.Log;

public class LoggingOutputStream extends ByteArrayOutputStream {
    private String lineSeparator;

    private Log logger;

    public LoggingOutputStream(Log logger) {
        super();
        this.logger = logger;
        lineSeparator = System.getProperty("line.separator");
    }

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

            if (record.length() == 0 || record.equals(lineSeparator)) {
                // avoid empty records
                return;
            }

            logger.error(record);
        }
    }
}