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.cli;
020
021import org.jpos.q2.CLICommand;
022import org.jpos.q2.CLIContext;
023
024import java.io.InputStream;
025
026/** CLI command that displays the manual page for another CLI command. */
027@SuppressWarnings("unused")
028public class MAN implements CLICommand {
029    /** Default constructor; no instance state to initialise. */
030    public MAN() {}
031    public void exec(CLIContext cli, String[] args) throws Exception {
032        if (args.length < 2) {
033            cli.println("What manual page do you want?");
034            return;
035        }
036        String command = args[1];
037        InputStream is = getClass().getResourceAsStream(command.toUpperCase() + ".man");
038        if (is != null) {
039            try {
040                byte[] b = new byte[is.available()];
041                is.read(b);
042                cli.print(new String(b));
043            } finally {
044                is.close();
045            }
046        } else {
047            cli.println("No manual entry for " + command);
048        }
049    }
050}