listentry.java

linux下建立JAVA虚拟机的源码KAFFE

/*
 * ListEntry.java
 * Copyright (C) 2003 The Free Software Foundation
 * 
 * This file is part of GNU inetlib, a library.
 * 
 * GNU inetlib 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 2 of the License, or
 * (at your option) any later version.
 * 
 * GNU inetlib 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 library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 * 
 * Linking this library statically or dynamically with other modules is
 * making a combined work based on this library.  Thus, the terms and
 * conditions of the GNU General Public License cover the whole
 * combination.
 *
 * As a special exception, the copyright holders of this library give you
 * permission to link this library with independent modules to produce an
 * executable, regardless of the license terms of these independent
 * modules, and to copy and distribute the resulting executable under
 * terms of your choice, provided that you also meet, for each linked
 * independent module, the terms and conditions of the license of that
 * module.  An independent module is a module which is not derived from
 * or based on this library.  If you modify this library, you may extend
 * this exception to your version of the library, but you are not
 * obliged to do so.  If you do not wish to do so, delete this
 * exception statement from your version.
 */

package gnu.inet.imap;

import java.util.List;

/**
 * An item in an IMAP LIST or LSUB response.
 *
 * @author <a href='mailto:[e-mail]'>Chris Burdess</a>
 */
public class ListEntry
  implements IMAPConstants
{

  private String mailbox;

  private char delimiter;

  private boolean noinferiors;
  private boolean noselect;
  private boolean marked;
  private boolean unmarked;

  /*
   * Constructor.
   * The list entry is otherwise immutable.
   */
  ListEntry(String mailbox, char delimiter, boolean noinferiors,
            boolean noselect, boolean marked, boolean unmarked)
  {
    this.mailbox = mailbox;
    this.delimiter = delimiter;
    this.noinferiors = noinferiors;
    this.noselect = noselect;
    this.marked = marked;
    this.unmarked = unmarked;
  }
  
  /**
   * Returns the mailbox this list entry refers to.
   */
  public String getMailbox()
  {
    return mailbox;
  }
  
  /**
   * Returns the mailbox hierarchy delimiter.
   */
  public char getDelimiter()
  {
    return delimiter;
  }

  /**
   * If true: it is not possible for any child levels of hierarchy to
   * exist under this name; no child levels exist now and none can be
   * created in the future.
   */
  public boolean isNoinferiors()
  {
    return noinferiors;
  }
  
  /**
   * If true: it is not possible to use this name as a selectable
   * mailbox.
   */
  public boolean isNoselect()
  {
    return noselect;
  }

  /**
   * If true: the mailbox has been marked "interesting" by the server;
   * the mailbox probably contains messages that have been added since
   * the last time the mailbox was selected.
   */
  public boolean isMarked()
  {
    return marked;
  }

  /**
   * If true: the mailbox does not contain any additional messages since
   * the last time the mailbox was selected.
   */
  public boolean isUnmarked()
  {
    return unmarked;
  }

  /**
   * Debugging
   */
  public String toString()
  {
    StringBuffer buffer = new StringBuffer();
    if (noinferiors || noselect || marked || unmarked)
      {
        buffer.append("(\u001b[00;35m");
        boolean seq = false;
        seq = conditionalAppend(buffer, seq, noinferiors, LIST_NOINFERIORS);
        seq = conditionalAppend(buffer, seq, noselect, LIST_NOSELECT);
        seq = conditionalAppend(buffer, seq, marked, LIST_MARKED);
        seq = conditionalAppend(buffer, seq, unmarked, LIST_UNMARKED);
        buffer.append("\u001b[00m) ");
      }
    buffer.append("\"\u001b[00;31m");
    buffer.append(delimiter);
    buffer.append("\u001b[00m\" ");
    buffer.append(mailbox);
    return buffer.toString();
  }
  
  private static boolean conditionalAppend(StringBuffer buffer,
                                           boolean seq, boolean test,
                                           String value)
  {
    if (test)
      {
        if (seq)
          {
            buffer.append(' ');
          }
        buffer.append(value);
        seq = true;
      }
    return seq;
  }
  
}