[CAMEL-16139] Support in Json for GlobalOption override of autoDiscoverObjectMapper

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Information Provided
• Affects Version/s: 3.7.1
• Component/s: camel-jackson

Environment

Camel 3.7+

• Patch Info: Patch Available
• Estimated Complexity: Unknown
• Flags: Patch
• Assignee: Unassigned
• Reporter: Bob Paulin
• Created: 04/Feb/21 02:24
• Updated: 05/Feb/21 10:17
• Resolved: 04/Feb/21 08:59

Description

The Java DSL offers a simple way to get started marshalling and unmarshaling objects mid route by:

 

.unmarshal().json(JsonLibrary.Jackson, Map.class)

 

In 3.x an option was added to allow Jackson to automatically discover ObjectMappers in the Camel registry:

autoDiscoverObjectMapper

 

This is very convenient to apply global Object mapper configurations to an entire application.  However it's defaulted to false and there does not appear to be a way to set this option in the Java DSL without replacing the above code with a DataFormat Object

EX

JacksonDataFormat format = new JacksonDataFormat(Map.class);
format.setAutoDiscoverObjectMapper(true);
.unmarshal(format);

This is a big change to make all over the project.

I'd like to propose being able to set this option globally in the camel context with the GlobalOptions

EX

 getContext().getGlobalOptions().put("jackson.json.autoDiscoverObjectMapper", "true");

Then use the Java DSL as is to a ObjectMapper that is already bound in the registry.  Would this be an acceptable approach?  Other options I'm missing. 

 

I have a patch with a suggested implementation.

Issue Links

• links to: GitHub Pull Request #5017