/*

 *   StarOffice News Server

 *   see AUTHORS for the list of contributors

 *

 *   This program is free software: you can redistribute it and/or modify

 *   it under the terms of the GNU General Public License as published by

 *   the Free Software Foundation, either version 3 of the License, or

 *   (at your option) any later version.

 *

 *   This program is distributed in the hope that it will be useful,

 *   but WITHOUT ANY WARRANTY; without even the implied warranty of

 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 *   GNU General Public License for more details.

 *

 *   You should have received a copy of the GNU General Public License

 *   along with this program.  If not, see <http://www.gnu.org/licenses/>.

 */

package com.so.news.command;

import java.io.IOException;

import java.util.List;

import com.so.news.NNTPConnection;

import com.so.news.storage.Article;

import com.so.news.storage.Group;

/**

 * Base class for all command handling classes.

 * @author Christian Lins

 * @author Dennis Schwerdel

 */

public abstract class Command

{

  protected NNTPConnection connection;

  public Command(NNTPConnection connection)

  {

    this.connection = connection;

  }

  protected static String NEWLINE = NNTPConnection.NEWLINE;

  protected List<String> readText() 

    throws IOException

  {

    return connection.readText();

  }

  protected String readTextLine() throws IOException

  {

    return connection.readTextLine();

  }

  protected void printStatus(int status, String text) throws IOException

  {

    connection.printStatus(status, text);

  }

  protected void printTextLine(CharSequence text) throws IOException

  {

    connection.printTextLine(text);

  }

  protected void printTextPart(CharSequence text) throws IOException

  {

    connection.printTextPart(text);

  }

  protected void printText(CharSequence text) throws IOException

  {

    connection.printText(text);

  }

  protected void println(CharSequence text) throws IOException

  {

    connection.println(text);

  }

  protected void flush() throws IOException

  {

    connection.flush();

  }

  protected Article getCurrentArticle()

  {

    return connection.getCurrentArticle();

  }

  protected Group getCurrentGroup()

  {

    return connection.getCurrentGroup();

  }

  protected void setCurrentArticle(Article current)

  {

    connection.setCurrentArticle(current);

  }

  protected void setCurrentGroup(Group current)

  {

    connection.setCurrentGroup(current);

  }

  public abstract boolean process(String[] command)

    throws Exception;

}