Expression language support for JSON

In Mule 3, I can have a string payload that consists of JSON and I can do expression language operations on it.

For example,

Code:

---

expression="#[json:job/state]"

---

retrieves the job state and uses it for a routing descision.

In Spring Integration, I have found that the expression language only seems to support java objects,
e.g.

Code:

---

exchange-name-expression="payload"

---

If payload is a string, then I can only to String operations on it.
The use case I have is that I want to dynamically route messages to a given exchange (in AMQP) based
on the message contents.

Is there support for this?

Obviously in my service, I could convert the JSON string to a Java JSONObject, but then the outbound adapter would have to serialize back.

Any other ideas would be welcome.

Earl

Hi Earl,

Thanks for bringing this up. We certainly need to improve our JSON support to cover your use-case. Consequently I have created a Jira to add support for JsonPath:

https://jira.springsource.org/browse/INTEXT-29

My thoughts right now, would be to provide Adapters similar to the XPath support we have, adding JSon specific Routers, Enrichers and Filters. I am not so sure, yet, regarding adding support directly into SpEL.

Please let us know any additional thoughts you have.

Cheers,

Gunnar