private void handleRssError(Exception e, SourcePojo source) {
// Error handling:
// - If it's a 500 or 502 or 503 or 504 then just log and carry on
// - Otherwise, if you get the same message twice in succession then error out
boolean bSuspendSource = false;
String sNewMessage = e.getMessage();
if (null != sNewMessage) {
if (sNewMessage.matches(".*50[0234].*")) {
// Do nothing, this is just a temporary error
} else if (null != source.getHarvestStatus()) {
String sOldMessage = source.getHarvestStatus().getHarvest_message();
if ((null != sOldMessage) && sOldMessage.equals(sNewMessage)) {
bSuspendSource = true;
}
}
}
_context
.getHarvestStatus()
.update(source, new Date(), HarvestEnum.error, sNewMessage, bSuspendSource, false);
// If an exception occurs log the error
logger.error("Exception Message: " + e.getMessage(), e);
}
// Process the feed
private void processFeed(SourcePojo source) throws Exception {
// Process the feed
LinkedList<SyndFeed> feeds = new LinkedList<SyndFeed>();
boolean bExtraUrls = (null == source.getUrl());
if ((null != source.getUrl())
&& ((null == source.getRssConfig()) || (null == source.getRssConfig().getSearchConfig()))) {
// (if the second clause is false, the URL is a search query, will process differently, inside
// buildFeedList)
SyndFeed feed = getFeed(source, null);
if (null != feed) {
feeds.add(feed);
}
} else if ((null != source.getRssConfig())
&& (null != source.getRssConfig().getSearchConfig())) {
FeedHarvester_searchEngineSubsystem searchEngineSubsystem =
new FeedHarvester_searchEngineSubsystem();
searchEngineSubsystem.generateFeedFromSearch(source, _context);
bExtraUrls = true;
} // TESTED
if ((null != source.getRssConfig())
&& (null != source.getRssConfig().getExtraUrls())
&& (null == source.getRssConfig().getSearchConfig())) {
// Some of these might be RSS feeds, check if title==null
for (ExtraUrlPojo url : source.getRssConfig().getExtraUrls()) {
if ((null == url.title) && (null != url.url)) {
SyndFeed feed = getFeed(source, url.url);
if (null != feed) {
feeds.add(feed);
}
}
}
} // TESTED
if (!feeds.isEmpty() || bExtraUrls) // (second case: also have extra URLs)
{
// Error handling, part 1:
this.nTmpHttpErrors = 0;
this.nTmpDocsSubmitted = 0;
// Extract the feed and place into the pojo
try {
buildFeedList(feeds, source);
} catch (Exception e) {
// Propagate upwards:
throw e;
}
// Error handling part 2:
// clean up
if ((nTmpHttpErrors == this.nTmpDocsSubmitted) && (this.nTmpDocsSubmitted > 5)) {
// any time when all a decent number of feeds are errors
logger.error(
"Source generates only invalid feeds: "
+ " http_errs="
+ nTmpHttpErrors
+ " source="
+ source.getUrl());
if (this.nTmpDocsSubmitted < 20) {
// harvested unsucessfully, post in mongo
_context
.getHarvestStatus()
.update(
source,
new Date(),
HarvestEnum.error,
"Extraction errors: redirect_errs=" + "http_errs=" + nTmpHttpErrors,
true,
false);
} else {
// harvested unsucessfully, post in mongo *AND DISABLE*
_context
.getHarvestStatus()
.update(
source,
new Date(),
HarvestEnum.error,
"Extraction errors: redirect_errs=" + "http_errs=" + nTmpHttpErrors,
true,
true);
}
} else {
// harvested successfully, post in mongo
_context
.getHarvestStatus()
.update(source, new Date(), HarvestEnum.in_progress, "", false, false);
}
}
}