RSS

Since Camel 2.1

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

  • marshal = from ROME SyndFeed to XML String

  • unmarshal = from XML String to ROME SyndFeed

A route using this would look something like this:

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

Query parameters

If the URL for the RSS feed uses query parameters, this component will understand them as well, for example if the feed uses alt=rss, then you can for example do from("rss:http://someserver.com/feeds/posts/default?alt=rss&splitEntries=false&delay=1000").to("bean:rss");

Options

The RSS dataformat has no options.

Example

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

  • marshal = from ROME SyndFeed to XML String

  • unmarshal = from XML String to ROME SyndFeed

A route using the RSS dataformat will look like this:

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

The purpose of this feature is to make it possible to use Camel’s built-in expressions for manipulating RSS messages. As shown below, an XPath expression can be used to filter the RSS message. In the following example, on ly entries with Camel in the title will get through the filter.

from("rss:file:src/test/data/rss20.xml?splitEntries=true&delay=100")
  .marshal().rss()
  .filter().xpath("//item/title[contains(.,'Camel')]")
    .to("mock:result");

Spring Boot Auto-Configuration

When using rss with Spring Boot make sure to use the following Maven dependency to have support for auto configuration:

<dependency>
  <groupId>org.apache.camel.springboot</groupId>
  <artifactId>camel-rss-starter</artifactId>
  <version>x.x.x</version>
  <!-- use the same version as your Camel core version -->
</dependency>

The component supports 4 options, which are listed below.

Name Description Default Type

camel.component.rss.autowired-enabled

Whether autowiring is enabled. This is used for automatic autowiring options (the option must be marked as autowired) by looking up in the registry to find if there is a single instance of matching type, which then gets configured on the component. This can be used for automatic configuring JDBC data sources, JMS connection factories, AWS Clients, etc.

true

Boolean

camel.component.rss.bridge-error-handler

Allows for bridging the consumer to the Camel routing Error Handler, which mean any exceptions (if possible) occurred while the Camel consumer is trying to pickup incoming messages, or the likes, will now be processed as a message and handled by the routing Error Handler. Important: This is only possible if the 3rd party component allows Camel to be alerted if an exception was thrown. Some components handle this internally only, and therefore bridgeErrorHandler is not possible. In other situations we may improve the Camel component to hook into the 3rd party component and make this possible for future releases. By default the consumer will use the org.apache.camel.spi.ExceptionHandler to deal with exceptions, that will be logged at WARN or ERROR level and ignored.

false

Boolean

camel.component.rss.enabled

Whether to enable auto configuration of the rss component. This is enabled by default.

Boolean

camel.dataformat.rss.enabled

Whether to enable auto configuration of the rss data format. This is enabled by default.

Boolean
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