@Override
public List<FeedItem> parse(InputStream input, int maxItems) throws RSSFeedParserException {
List<FeedItem> result = new ArrayList<FeedItem>();
XmlPullParser parser = setupParser(input);
FeedItemBuilder feedItemBuilder = null;
String tagName;
try {
int currentEventType = parser.getEventType();
while (currentEventType != END_DOCUMENT && result.size() != maxItems) {
tagName = parser.getName();
switch (currentEventType) {
case START_TAG:
if (ITEM_TAG.equalsIgnoreCase(tagName)) {
feedItemBuilder = new FeedItemBuilder();
} else if (feedItemBuilder != null) {
populateMessageProperty(parser.nextText(), feedItemBuilder, tagName);
}
break;
case END_TAG:
if (ITEM_TAG.equalsIgnoreCase(tagName)) {
result.add(feedItemBuilder.getFeedItem());
feedItemBuilder = null;
}
break;
default:
break;
}
currentEventType = parser.next();
}
} catch (XmlPullParserException e) {
throw new RSSFeedParserException("RSS input stream has wrong content", e);
} catch (IOException e) {
throw new RSSFeedParserException("Something wrong with input stream", e);
}
return result;
}
private void populateMessageProperty(
String value, FeedItemBuilder feedItemBuilder, String tagName) {
if (LINK_TAG.equalsIgnoreCase(tagName)) {
feedItemBuilder.setLink(value);
} else if (DESCRIPTION_TAG.equalsIgnoreCase(tagName)) {
feedItemBuilder.setDescription(value);
} else if (PUB_DATE_TAG.equalsIgnoreCase(tagName)) {
feedItemBuilder.setDate(parseDate(value));
} else if (TITLE_TAG.equalsIgnoreCase(tagName)) {
feedItemBuilder.setTitle(value);
}
}
