gecko-dev/grendel/storage/NewsRCLine.java

98 строки
2.8 KiB
Java

/* -*- Mode: java; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* The Original Code is the Grendel mail/news client.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1997
* Netscape Communications Corporation. All Rights Reserved.
*
* Created: Jamie Zawinski <jwz@netscape.com>, 10 Sep 1997.
*/
package grendel.storage;
import calypso.util.ByteBuf;
/** This class represents a single line from a newsrc file:
a group name, whether it is subscribed, and a set of message numbers.
*/
class NewsRCLine extends NewsSet {
private NewsRC rc;
private String group_name;
private boolean subscribed;
/** Creates a NewsRCLine with no messages marked as read. */
NewsRCLine(NewsRC parent, String group, boolean subbed) {
super();
rc = parent;
subscribed = subbed;
}
/** Creates a NewsRCLine with the indicated messages marked as read.
*/
NewsRCLine(NewsRC parent, String group, boolean subbed, ByteBuf numbers) {
this(parent, group, subbed, numbers.toBytes(), 0, numbers.length());
}
/** As above, but takes a byte array and a subsequence into it, instead
of a ByteBuf object. */
NewsRCLine(NewsRC parent, String name, boolean subbed,
byte[] line, int start, int end) {
super(line, start, end);
rc = parent;
group_name = name;
subscribed = subbed;
}
/** Returns the name of this newsgroup.
*/
String name() {
return group_name;
}
/** Returns whether this newsgroup is subscribed.
*/
boolean subscribed() {
return subscribed;
}
/** Change whether this newsgroup is subscribed.
*/
void setSubscribed(boolean subscribed) {
if (this.subscribed != subscribed) {
this.subscribed = subscribed;
markDirty();
}
}
/** Converts the object back into a printed representation for the file.
This will be something like "alt.group: 1-29627,32861-32863".
*/
public void write(ByteBuf out) {
if (group_name == null)
return;
out.append(group_name);
out.append(subscribed ? ":" : "!");
if (!isEmpty()) out.append(" ");
super.write(out);
}
/** Called when a change is made to the set.
This just invokes the markDirty() method on the parent NewsRC object.
*/
public void markDirty() {
rc.markDirty();
}
}