chris@0: /*
chris@0:  *   StarOffice News Server
chris@0:  *   see AUTHORS for the list of contributors
chris@0:  *
chris@0:  *   This program is free software: you can redistribute it and/or modify
chris@0:  *   it under the terms of the GNU General Public License as published by
chris@0:  *   the Free Software Foundation, either version 3 of the License, or
chris@0:  *   (at your option) any later version.
chris@0:  *
chris@0:  *   This program is distributed in the hope that it will be useful,
chris@0:  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
chris@0:  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
chris@0:  *   GNU General Public License for more details.
chris@0:  *
chris@0:  *   You should have received a copy of the GNU General Public License
chris@0:  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
chris@0:  */
chris@0: 
chris@0: package com.so.news.command;
chris@0: 
chris@0: import java.io.IOException;
chris@0: import java.util.List;
chris@0: import com.so.news.NNTPConnection;
chris@0: import com.so.news.storage.Article;
chris@0: import com.so.news.storage.Group;
chris@0: 
chris@0: /**
chris@0:  * Base class for all command handling classes.
chris@0:  * @author Christian Lins
chris@0:  * @author Dennis Schwerdel
chris@0:  */
chris@0: public abstract class Command
chris@0: {
chris@0:   protected NNTPConnection connection;
chris@0: 
chris@0:   public Command(NNTPConnection connection)
chris@0:   {
chris@0:     this.connection = connection;
chris@0:   }
chris@0: 
chris@0:   protected static String NEWLINE = NNTPConnection.NEWLINE;
chris@0: 
chris@0:   protected List<String> readText() 
chris@0:     throws IOException
chris@0:   {
chris@0:     return connection.readText();
chris@0:   }
chris@0: 
chris@0:   protected String readTextLine() throws IOException
chris@0:   {
chris@0:     return connection.readTextLine();
chris@0:   }
chris@0: 
chris@0:   protected void printStatus(int status, String text) throws IOException
chris@0:   {
chris@0:     connection.printStatus(status, text);
chris@0:   }
chris@0: 
chris@0:   protected void printTextLine(CharSequence text) throws IOException
chris@0:   {
chris@0:     connection.printTextLine(text);
chris@0:   }
chris@0: 
chris@0:   protected void printTextPart(CharSequence text) throws IOException
chris@0:   {
chris@0:     connection.printTextPart(text);
chris@0:   }
chris@0:   
chris@0:   protected void printText(CharSequence text) throws IOException
chris@0:   {
chris@0:     connection.printText(text);
chris@0:   }
chris@0: 
chris@0:   protected void println(CharSequence text) throws IOException
chris@0:   {
chris@0:     connection.println(text);
chris@0:   }
chris@0: 
chris@0:   protected void flush() throws IOException
chris@0:   {
chris@0:     connection.flush();
chris@0:   }
chris@0: 
chris@0:   protected Article getCurrentArticle()
chris@0:   {
chris@0:     return connection.getCurrentArticle();
chris@0:   }
chris@0: 
chris@0:   protected Group getCurrentGroup()
chris@0:   {
chris@0:     return connection.getCurrentGroup();
chris@0:   }
chris@0: 
chris@0:   protected void setCurrentArticle(Article current)
chris@0:   {
chris@0:     connection.setCurrentArticle(current);
chris@0:   }
chris@0: 
chris@0:   protected void setCurrentGroup(Group current)
chris@0:   {
chris@0:     connection.setCurrentGroup(current);
chris@0:   }
chris@0: 
chris@0:   public abstract boolean process(String[] command)
chris@0:     throws Exception;
chris@0: }