I'm trying to parse an XML feed using SimpleXML in Android: http://backend.deviantart.com/rss.xml?type=deviation&q=by%3Aspyed+sort%3Atime+meta%3Aall
Sample here:
<?xml version="1.0" encoding="UTF-8"?>
<rss xmlns:atom="http://www.w3.org/2005/Atom" xmlns:creativeCommons="http://backend.userland.com/creativeCommonsRssModule" xmlns:media="http://search.yahoo.com/mrss/" version="2.0">
<channel>
<title>DeviantArt: spyed's</title>
<link>http://www.deviantart.com/?order=5&q=by%3Aspyed</link>
<description>DeviantArt RSS for sort:time by:spyed</description>
<language>en-us</language>
<copyright>Copyright 2015, DeviantArt.com</copyright>
<pubDate>Thu, 20 Aug 2015 07:45:31 PDT</pubDate>
<generator>DeviantArt.com</generator>
<docs>http://blogs.law.harvard.edu/tech/rss</docs>
<atom:icon>http://st.deviantart.net/minish/touch-icons/android-192.png</atom:icon>
<atom:link type="application/rss+xml" rel="self" href="http://backend.deviantart.com/rss.xml?q=sort%3Atime+by%3Aspyed&type=deviation" />
<atom:link rel="next" href="http://backend.deviantart.com/rss.xml?q=sort%3Atime+by%3Aspyed&type=deviation&offset=60" />
<item>
<title>Happy 15th Birthday!</title>
<link>http://spyed.deviantart.com/journal/Happy-15th-Birthday-552416478</link>
<guid isPermaLink="true">http://spyed.deviantart.com/journal/Happy-15th-Birthday-552416478</guid>
<pubDate>Sun, 09 Aug 2015 01:41:54 PDT</pubDate>
<media:title type="plain">Happy 15th Birthday!</media:title>
<media:keywords />
<media:rating>nonadult</media:rating>
<media:category label="Personal">journals/personal</media:category>
<media:credit role="author" scheme="urn:ebu">spyed</media:credit>
<media:credit role="author" scheme="urn:ebu">http://a.deviantart.net/avatars/s/p/spyed.gif</media:credit>
<media:copyright url="http://spyed.deviantart.com">Copyright 2015 spyed</media:copyright>
<media:description type="html" />
<media:content url="http://spyed.deviantart.com/journal/Happy-15th-Birthday-552416478" medium="document" />
<media:text type="html">In April I wrote a post reflecting on my 15 years at DeviantArt, since the project began in April of 2000 and was launched to the public on August 7th. I went back and re-read what I wrote, and wow, speaking of audacious I'm pretty hardcore in this post. I write from my heart sometimes and then I hit post and that's that. So for our official 15th Birthday I wanted to re-share a link to that post:<br /><br />And then today, I wrote this reflection for you as a toast &amp; thanks for all the llamas:<br /><br />Happy 15th Birthday DeviantArt! We are evolving, and soon we will be able to share exactly how you can be a part of our transformation, ensuring that the De</media:text>
<description />
</item>
<item>
<title>The Floor is Open</title>
<link>http://spyed.deviantart.com/journal/The-Floor-is-Open-548845475</link>
<guid isPermaLink="true">http://spyed.deviantart.com/journal/The-Floor-is-Open-548845475</guid>
<pubDate>Sat, 25 Jul 2015 11:38:46 PDT</pubDate>
<media:title type="plain">The Floor is Open</media:title>
<media:keywords />
<media:rating>nonadult</media:rating>
<media:category label="Personal">journals/personal</media:category>
<media:credit role="author" scheme="urn:ebu">spyed</media:credit>
<media:credit role="author" scheme="urn:ebu">http://a.deviantart.net/avatars/s/p/spyed.gif</media:credit>
<media:copyright url="http://spyed.deviantart.com">Copyright 2015 spyed</media:copyright>
<media:description type="html" />
<media:content url="http://spyed.deviantart.com/journal/The-Floor-is-Open-548845475" medium="document" />
<media:text type="html">Happy Saturday! I'm hanging out at home, so I thought I'd have an open conversation. Post anything, I'll reply. It's about 11:30am, I'll be in front of this thing for two hours before I go to my god daughters 7th birthday party! Yay!<br /><br />If you're wondering what we're up to, check out the DeviantArt Timeline ( http://www.deviantart.com/timeline/ ) -- It might compel you to ask some questions. Or, if there's anything you've been wondering about, ask!<br /><br />Here's some food for thought to get you started about the overall state of DeviantArt:<br /><br />Our team focuses on two things that matter most to us, the first is our mission to Entertain, Inspire &amp; Em</media:text>
<description />
</item>
... etc ....
but I'm getting the following error:
08-13 15:55:38.529: W/System.err(1437): org.simpleframework.xml.core.PersistenceException: Element 'title' is already used with @org.simpleframework.xml.Element(data=false, name=title, required=false, type=void) on field 'title' public java.lang.String com.example.feedreader.SimpleRss$Channel$RssItem.title at line 1
I noticed that there is a title tag in two different levels, but I'm not sure how to make the distinction in code.
Here's what I have:
@Root(name = "rss", strict = false)
public class SimpleRss implements FeedRoot {
@Root(name = "channel")
public static class Channel {
@Element(name = "title", required = false)
public String title = "";
@Attribute(name = "href", required = false)
@ElementList(entry = "link", inline = true, required = false)
private List<String> links;
@Element(name = "description", required = false)
@Namespace(prefix = "")
public String description = "";
@Element(name = "pubDate", required = false)
public String pubDate = "";
@Element(name = "event_link", required = false)
public String event_link = "";
@Root(name = "item")
public static class RssItem implements SimpleFeedItem {
public String parent = "";
public String feedUrl = null;
public Date date = null;
@Element(name = "title", required = false)
public String title = "";
@Element(name = "link", required = false)
public String link = "";
@Element(name = "event_link", required = false)
public String event_link = "";
@Element(name = "description", required = false)
public String description = "";
@Element(name = "pubDate", required = false)
public String pubDate = "";
@Path("enclosure")
@Attribute(name = "url", required = false)
public String enclosureUrl = "";
@Path("enclosure")
@Attribute(name = "type", required = false)
public String enclosureType = "";
@Override
public String getTitle() {
return title;
}
@Override
public String getDescription() {
return description;
}
@Override
public String getLink() {
return link;
}
@Override
public String getEventLink() {
return event_link;
}
@Override
public String getAdditional() {
return parent;
}
@Override
public String getPubDate() {
return pubDate;
}
@Override
public String getFeedUrl() {
return feedUrl;
}
@Override
public void setFeedUrl(String url) {
feedUrl = url;
}
@Override
public void setDate(Date date) {
this.date = date;
}
@Override
public Date getDate() {
return date;
}
@Override
public String getPictureUrl() {
if (DataUtils.isEmpty(enclosureType)) {
return null;
} else if (SimpleFeedItem.SupportedFeedImageTypes
.contains(enclosureType.toLowerCase(Locale.ENGLISH))) {
return enclosureUrl;
} else {
return null;
}
}
}
@ElementList(inline = true, required = false)
public List<RssItem> rssItems = J.newArrayList();
}
@Element(name = "channel")
public Channel channel;
@Override
public List<SimpleFeedItem> getItems() {
List<SimpleFeedItem> items = J.newArrayList();
if (channel != null && channel.rssItems != null) {
for (RssItem item : channel.rssItems) {
String title = channel.title;
if (title == null) {
title = "";
}
item.parent = title.intern();
items.add(item);
}
}
return items;
}
@Override
public String getTitle() {
if (channel == null) {
return "";
} else {
return channel.title;
}
}
}
I've tried commenting out the
@Element(name = "title", required = false)
public String title = "";
in the Channel class and I get the same error. Also if I just rename it.
If I do the same with the one in the RssItem class however, it will work but I don't get the titles for the items.
Thanks!
This fixes the problem:
Remove this:
@Element(name = "title", required = false)
Replace with:
//inside the inner class RssItem
@Path("title")
@Text(required=false)
public String title = "";
This should be repeated for any other field that gets the exception.