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.q2;
020
021import java.io.InputStream;
022import java.io.OutputStream;
023
024/** Q2 CLI command interface for external command execution. */
025public interface Command {
026    /**
027     * Executes this command.
028     * @param is input stream
029     * @param os output stream
030     * @param err error stream
031     * @param strings command arguments
032     * @throws Exception on execution failure
033     */
034    void exec(InputStream is, OutputStream os, OutputStream err, String[] strings) throws Exception;
035}