[CAMEL-13213] Cannot use rest-swagger component with swagger.json pro…

[JiriOndrusek]

…vided over HTTPS protocol

Issue: https://issues.apache.org/jira/browse/CAMEL-13213

There was on static call for swagger.json, which didn't care about ssl. I was trying to follow suggested direction from issue "What we should do is to load the resource via the chose camel http component and do a HTTP GET call. Then you setup SSL on it (as you would need to do to use https for the actual HTTP rest calls)."
So I've:

• added dependency to camel-http
• added sslContextParameters definition to endpoint
• replaced "ResourceHelper.resolveMandatoryResourceAsInputStream" with camel-http call, which uses sslContextParameters
• added JUnit test to cover this case

@davsclaus what do you think?

[omarsmak]

Thanks @JiriOndrusek , couples of nits here and there :)

[JiriOndrusek]

@omarsmak thank you for your hints. I agree with a the majority of them (to be honest, I wanted to create this PR to have feedback whether this approach will be acceptable - I've completely forget to refactor for example method "getMethod", because I wasn't sure about this PR at all)

[JiriOndrusek]

@omarsmak I've made all changes as requested

[davsclaus]

@JiriOndrusek can you fix the last bit with closing that input stream after you are done

[davsclaus]

Since camel-http is now required, then you need to change the karaf feature file to include it also
https://github.com/apache/camel/blob/master/platforms/karaf/features/src/main/resources/features.xml#L2085

You can add a new line with camel-http that is similar to camel-core

[JiriOndrusek]

@davsclaus Thank you for pointing it out. It is fixed now.