author | cli |
Sat May 01 14:27:30 2010 +0200 (2010-05-01) | |
changeset 28 | 15d14b110240 |
parent 20 | 6ae5e4f8329b |
permissions | -rw-r--r-- |
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/* |
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* SONEWS News Server |
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* see AUTHORS for the list of contributors |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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|
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package org.sonews.daemon.command; |
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|
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import java.io.IOException; |
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import java.util.Set; |
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import org.sonews.daemon.CommandSelector; |
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import org.sonews.daemon.NNTPConnection; |
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import org.sonews.util.io.Resource; |
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|
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/** |
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* This command provides a short summary of the commands that are |
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* understood by this implementation of the server. The help text will |
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* be presented as a multi-line data block following the 100 response |
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* code (taken from RFC). |
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* @author Christian Lins |
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* @since sonews/0.5.0 |
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*/ |
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public class HelpCommand implements Command |
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{ |
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|
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@Override |
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public boolean hasFinished() |
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{ |
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return true; |
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} |
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|
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@Override |
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public String impliedCapability() |
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{ |
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return null; |
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} |
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|
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@Override |
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public boolean isStateful() |
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{ |
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return true; |
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} |
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|
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@Override |
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public String[] getSupportedCommandStrings() |
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{ |
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return new String[]{"HELP"}; |
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} |
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|
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@Override |
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public void processLine(NNTPConnection conn, final String line, byte[] raw) |
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throws IOException |
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{ |
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final String[] command = line.split(" "); |
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conn.println("100 help text follows"); |
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|
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if(line.length() <= 1) |
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{ |
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final String[] help = Resource |
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.getAsString("helpers/helptext", true).split("\n"); |
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for(String hstr : help) |
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{ |
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conn.println(hstr); |
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} |
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|
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Set<String> commandNames = CommandSelector.getCommandNames(); |
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for(String cmdName : commandNames) |
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{ |
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conn.println(cmdName); |
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} |
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} |
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else |
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{ |
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Command cmd = CommandSelector.getInstance().get(command[1]); |
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if(cmd instanceof HelpfulCommand) |
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{ |
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conn.println(((HelpfulCommand)cmd).getHelpString()); |
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} |
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else |
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{ |
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conn.println("No further help information available."); |
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} |
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} |
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|
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conn.println("."); |
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} |
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|
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} |