View Javadoc
1   /*
2    * This file is part of Waarp Project (named also Waarp or GG).
3    *
4    *  Copyright (c) 2019, Waarp SAS, and individual contributors by the @author
5    *  tags. See the COPYRIGHT.txt in the distribution for a full listing of
6    * individual contributors.
7    *
8    *  All Waarp Project is free software: you can redistribute it and/or
9    * modify it under the terms of the GNU General Public License as published by
10   * the Free Software Foundation, either version 3 of the License, or (at your
11   * option) any later version.
12   *
13   * Waarp is distributed in the hope that it will be useful, but WITHOUT ANY
14   * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
15   * A PARTICULAR PURPOSE. See the GNU General Public License for more details.
16   *
17   *  You should have received a copy of the GNU General Public License along with
18   * Waarp . If not, see <http://www.gnu.org/licenses/>.
19   */
20  package org.waarp.ftp.core.command.service;
21  
22  import org.waarp.common.command.ReplyCode;
23  import org.waarp.ftp.core.command.AbstractCommand;
24  import org.waarp.ftp.core.exception.FtpNoTransferException;
25  
26  /**
27   * ABOR command
28   */
29  public class ABOR extends AbstractCommand {
30    @Override
31    public final void exec() {
32      // First check if the data connection is opened
33      if (getSession().getDataConn().isActive()) {
34        // Now check if the data connection is currently used
35        try {
36          getSession().getDataConn().getFtpTransferControl()
37                      .getExecutingFtpTransfer();
38        } catch (final FtpNoTransferException e) {
39          getSession().getDataConn().getFtpTransferControl().clear();
40          getSession().setReplyCode(ReplyCode.REPLY_226_CLOSING_DATA_CONNECTION,
41                                    null);
42          return;
43        }
44        getSession().getDataConn().getFtpTransferControl()
45                    .setTransferAbortedFromInternal(false);
46        return;
47      }
48      getSession().setReplyCode(ReplyCode.REPLY_226_CLOSING_DATA_CONNECTION,
49                                null);
50    }
51  
52  }