01: //
02: //Informa -- RSS Library for Java
03: //Copyright (c) 2002 by Niko Schmuck
04: //
05: //Niko Schmuck
06: //http://sourceforge.net/projects/informa
07: //mailto:niko_schmuck@users.sourceforge.net
08: //
09: //This library is free software.
10: //
11: //You may redistribute it and/or modify it under the terms of the GNU
12: //Lesser General Public License as published by the Free Software Foundation.
13: //
14: //Version 2.1 of the license should be included with this distribution in
15: //the file LICENSE. If the license is not included with this distribution,
16: //you may find a copy at the FSF web site at 'www.gnu.org' or 'www.fsf.org',
17: //or you may write to the Free Software Foundation, 675 Mass Ave, Cambridge,
18: //MA 02139 USA.
19: //
20: //This library is distributed in the hope that it will be useful,
21: //but WITHOUT ANY WARRANTY; without even the implied waranty of
22: //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23: //Lesser General Public License for more details.
24: //
25: package de.nava.informa.utils;
26:
27: import de.nava.informa.core.ChannelIF;
28:
29: /**
30: * @author Jean-Guy Avelin
31: */
32: public class RSS200Settings implements CacheSettingsIF {
33:
34: //private static Log logger = LogFactory.getLog(RSS200Settings.class);
35:
36: private long defaultTtl = DEFAULT_TTL;
37:
38: /**
39: * Set default time-to-live value.
40: */
41: public void setDefaultTtl(long defaultTtl) {
42: this .defaultTtl = defaultTtl;
43: }
44:
45: /**
46: * return in order of preference: feed producer ttl (if exists and < wantedTtl)
47: * wantedTtl (if exists) defaultTtl (if exists)
48: */
49: public long getTtl(ChannelIF channel, long Ttlms) {
50: if (channel.getTtl() > 0) {
51: long channelTtl = channel.getTtl() * (60 * 1000); // ttl in feed in minutes
52: if (Ttlms > channelTtl) {
53: return Ttlms;
54: }
55: return channelTtl;
56: }
57:
58: if (Ttlms > MINIMAL_TTL)
59: return Ttlms;
60:
61: return defaultTtl;
62:
63: }
64: }
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