The rss: component is used for polling RSS feeds. Fuse Mediation Router will default poll the feed every 60th seconds.

Note: The component currently only supports polling (consuming) feeds.

rss:rssUri

Where rssUri is the URI to the RSS feed to poll.

You can append query options to the URI in the following format, ?option=value&option=value&...

Fuse Mediation Router initializes the In body on the Exchange with a ROME SyndFeed. Depending on the value of the splitEntries flag, Fuse Mediation Router returns either a SyndFeed with one SyndEntry or a java.util.List of SyndEntrys.

The RSS component ships with an RSS dataformat that can be used to convert between String (as XML) and ROME RSS model objects.

A route using this would look something like this:

from("rss:file:src/test/data/rss20.xml?splitEntries=false&consumer.delay=1000").marshal().rss().to("mock:marshal");

The purpose of this feature is to make it possible to use Fuse Mediation Router's lovely built-in expressions for manipulating RSS messages. As shown below, an XPath expression can be used to filter the RSS message:

// only entries with Fuse Mediation Router in the title will get through the filter
from("rss:file:src/test/data/rss20.xml?splitEntries=true&consumer.delay=100")
    .marshal().rss().filter().xpath("//item/title[contains(.,'Camel')]").to("mock:result");

You can filter out entries quite easily using XPath, as shown in the data format section above. You can also exploit Fuse Mediation Router's Bean Integration to implement your own conditions. For instance, a filter equivalent to the XPath example above would be:

// only entries with Camel in the title will get through the filter
from("rss:file:src/test/data/rss20.xml?splitEntries=true&consumer.delay=100").
    filter().method("myFilterBean", "titleContainsCamel").to("mock:result");

The custom bean for this would be:

public static class FilterBean {
    public boolean titleContainsCamel(@Body SyndFeed feed) {
        SyndEntry firstEntry = (SyndEntry) feed.getEntries().get(0);
        return firstEntry.getTitle().contains("Camel");
    }
}