1 | |
|
2 | |
|
3 | |
|
4 | |
|
5 | |
|
6 | |
|
7 | |
package org.mule.module.rss.routing; |
8 | |
|
9 | |
import org.mule.api.MuleMessage; |
10 | |
import org.mule.api.MuleRuntimeException; |
11 | |
import org.mule.api.routing.filter.Filter; |
12 | |
import org.mule.api.transformer.TransformerException; |
13 | |
import org.mule.config.i18n.CoreMessages; |
14 | |
import org.mule.transformer.types.DataTypeFactory; |
15 | |
|
16 | |
import com.sun.syndication.feed.synd.SyndFeed; |
17 | |
|
18 | |
import java.util.Date; |
19 | |
|
20 | |
import org.apache.commons.logging.Log; |
21 | |
import org.apache.commons.logging.LogFactory; |
22 | |
|
23 | |
|
24 | |
|
25 | |
|
26 | |
|
27 | |
public class FeedLastUpdatedFilter implements Filter |
28 | |
{ |
29 | |
|
30 | |
|
31 | |
|
32 | 0 | private final transient Log logger = LogFactory.getLog(FeedLastUpdatedFilter.class); |
33 | |
private Date lastUpdate; |
34 | |
|
35 | 0 | private boolean acceptWithoutUpdateDate = true; |
36 | |
|
37 | |
public FeedLastUpdatedFilter() |
38 | 0 | { |
39 | |
|
40 | 0 | } |
41 | |
|
42 | |
public FeedLastUpdatedFilter(Date lastUpdate) |
43 | 0 | { |
44 | 0 | this.lastUpdate = lastUpdate; |
45 | 0 | } |
46 | |
|
47 | |
public boolean accept(MuleMessage message) |
48 | |
{ |
49 | |
SyndFeed feed; |
50 | |
try |
51 | |
{ |
52 | 0 | feed = message.getPayload(DataTypeFactory.create(SyndFeed.class)); |
53 | |
} |
54 | 0 | catch (TransformerException e) |
55 | |
{ |
56 | 0 | throw new MuleRuntimeException(CoreMessages.failedToReadPayload(), e); |
57 | 0 | } |
58 | |
|
59 | 0 | Date updated = feed.getPublishedDate(); |
60 | 0 | if (updated == null) |
61 | |
{ |
62 | 0 | if (isAcceptWithoutUpdateDate()) |
63 | |
{ |
64 | 0 | if (logger.isDebugEnabled()) |
65 | |
{ |
66 | 0 | logger.debug("Feed does not have a last updated or published date set, assuming the feed should be processed"); |
67 | |
} |
68 | 0 | return true; |
69 | |
} |
70 | |
else |
71 | |
{ |
72 | 0 | if (logger.isWarnEnabled()) |
73 | |
{ |
74 | 0 | logger.warn("Feed does not have a last updated or published date set, not consuming the feed because 'acceptWithoutUpdateDate' is false"); |
75 | |
} |
76 | 0 | return false; |
77 | |
} |
78 | |
} |
79 | |
|
80 | 0 | if (lastUpdate != null) |
81 | |
{ |
82 | 0 | if (lastUpdate.after(updated) || lastUpdate.equals(updated)) |
83 | |
{ |
84 | 0 | if (logger.isDebugEnabled()) |
85 | |
{ |
86 | 0 | logger.debug("Feed update is not newer than the last update, not processing"); |
87 | |
} |
88 | 0 | return false; |
89 | |
} |
90 | |
} |
91 | 0 | lastUpdate = updated; |
92 | 0 | return true; |
93 | |
|
94 | |
} |
95 | |
|
96 | |
public boolean isAcceptWithoutUpdateDate() |
97 | |
{ |
98 | 0 | return acceptWithoutUpdateDate; |
99 | |
} |
100 | |
|
101 | |
public void setAcceptWithoutUpdateDate(boolean acceptWithoutUpdateDate) |
102 | |
{ |
103 | 0 | this.acceptWithoutUpdateDate = acceptWithoutUpdateDate; |
104 | 0 | } |
105 | |
|
106 | |
public Date getLastUpdate() |
107 | |
{ |
108 | 0 | return lastUpdate; |
109 | |
} |
110 | |
|
111 | |
public void setLastUpdate(Date lastUpdate) |
112 | |
{ |
113 | 0 | this.lastUpdate = lastUpdate; |
114 | 0 | } |
115 | |
} |