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https://wso2.org/jira/browse/MASHUP-777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16428#action_16428
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Tyrell Perera commented on MASHUP-777:
--------------------------------------
Update:
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Since our Feed object is based on a ROME SyndFeed, both Feed and Entry objects
have a superset of properties. Depending on the type of Feed read, some
properties will be invalid (null). The good news is that a Feed object will
always have the 'type' property set. Therefore a Mashup author can check the
'type' of the current Feed and treat its Feed/Entry properties accordingly.
Currently the Feed types are rss_0.90, rss_0.91, rss_0.92, rss_0.93, rss_0.94,
rss_1.0 rss_2.0 and atom_0.3
For instance;
http://sanjiva.weerawarana.org/feeds/posts/default [This is an Atom Feed]
http://auburnmarshes.spaces.live.com/feed.rss [This is RSS]
When getting content the Mashup author should get the 'description' property
from the RSS entries, while getting the 'content' property from the Atom ones.
function getFeed(url) {
var reader = new FeedReader();
var feed = reader.get(url);
if(!(feed.type.indexOf("rss") == -1))
return feed.getEntries()[0].description;
elseif(!(feed.type.indexOf("atom") == -1))
return feed.getEntries()[0].content;
else
return "";
}
Some properties will return null depending on the Feed type and they are now
handled (ref: MASHUP-778) to prevent 'null pointer' exceptions poping up at the
backend.
If this is acceptable we can leave it at this. If not I can add a new method,
such as getPayload(), which will get the contents no matter what the feed type
is.
> Feed doesn't normalize content vs. description.
> -----------------------------------------------
>
> Key: MASHUP-777
> URL: https://wso2.org/jira/browse/MASHUP-777
> Project: WSO2 Mashup Server
> Issue Type: Bug
> Reporter: Jonathan Marsh
> Assignee: Tyrell Perera
> Fix For: 1.1
>
>
> I have trouble using the Feed object to normalize the differences between
> these two URLs:
> http://sanjiva.weerawarana.org/feeds/posts/default
> http://auburnmarshes.spaces.live.com/feed.rss
> The former holds content in the "content" property, the latter holds it in
> the "description" property. Can we normalize these two so we can get the
> content despite what format the feed is in?
>
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