001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2026 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.util;
020
021import java.io.PrintStream;
022
023/**
024 * LogEventWriters allow the customization of how LogListeners write LogEvent data to
025 * output streams.
026 *
027 * Its purpose is the formatting of output data and not the modification of individual events.
028 *
029 * @author Alwyn Schoeman
030 * @since 2.1.4
031 */
032public interface LogEventWriter {
033    /**
034     * Writes a log event to the underlying output.
035     * @param ev the log event to write
036     */
037    void write(LogEvent ev);
038    /**
039     * Sets the print stream used for output.
040     * @param printStream the destination stream
041     */
042    void setPrintStream(PrintStream printStream);
043    /** Closes the writer and releases any underlying resources. */
044    void close();
045}