Missing API in Transport Context

[sbernard31]

Implementing coap(s)+tcp in Leshan, I faced some issues that could be solve with API additions :
(I found workaround for each of them, so there is no urgency)

1. A way to iterate over keys of TransportContext

Maybe a Collection<Key<?>> getKeys() methods ? or make TransportContext implements Iterable ?

Here an example of usage.

2. I need to add all keys from a TransportContext to an other existing TransportContext.

Proposed API :

• Adding to TransportContext a method with(TransportContext contextToMerge)
• Adding a CoapRequest.Builder a method addContext(TransportContext contextToMerge)

[szysas]

Those should be easy ones.. but lets see.