[CAMEL-9557] Facebook consumer throws IllegalArgumentException with reading parameters

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.16.2
• Fix Version/s: 2.16.3, 2.17.0
• Component/s: camel-facebook

Environment

OpenJDK Runtime Environment (IcedTea 2.6.4) (Arch Linux build 7.u95_2.6.4-1-x86_64)

• Estimated Complexity: Unknown
• Assignee: Claus Ibsen
• Reporter: Justin W
• Created: 02/Feb/16 06:07
• Updated: 03/Feb/16 07:32
• Resolved: 03/Feb/16 07:32

Description

I've configured a polling Facebook consumer with nearly default Spring configuration as follows:

<camel:from uri="facebook://getFeed?
    reading.since=2016-01-01T00:00:00Z&amp;
    userId=myUserId&amp;
    consumer.delay=60000&amp;
    oAuthAppId=[s]&amp;
    oAuthAppSecret=[s]&amp;
    oAuthAccessToken=[s]
    "/>

However, an IllegalArgument is thrown with any reading.* parameter regardless of endpoint:

java.lang.IllegalArgumentException: No matching operation for getFeed, with arguments [readingOptions, reading, userId]

On debugging, the method FacebookEndpoint.configureProperties sets two properties on the configuration object: (readingOptions, reading).

FacebookPropertiesHelper.configureReadingProperties(configuration, options);

readingOptions is a Map which is finally size 0 after all the relevant properties are extracted into the reading parameter. However, it isn't nullified.

In the subsequent method initState(), it tries to look for a method in FacebookMethodTypes with the signature:

getFeed(String userId, Reading reading)

Because readingOptions is non null, it looks for a readingOptions parameter as well which doesn't exist, throwing the Exception.

Is there a workaround I can use for the moment? Thanks!