[Compiler] Requesting Schema Source Code

[VaughnVernon]

The following GET will crash in the compiler.

curl -i -X GET -H "Accept: application/json" http://localhost:9019/code/{reference}/{language}

Concrete example:

1. Create each of Org:Unit:Context:Schema:Version
2. Query for the source code
3. Exception

E.g. /code/vlingo:PlatformDevelopment:io.vlingo.schemata:SchemaDefined:1.0.0/java

This is due to two problems:

1. The compiler is unfinished reimplementation from synchronous to asynchronous
2. There is no dependency resolver implementation; if one SchemaVersion has a dependency on another named SchemaVersion there is no way to resolve that dependency type.
3. There is only an in-memory "mock" resolver: CacheTypeResolver

[VaughnVernon]

@wwerner BTW, above There is only an in-memory "mock" resolver: CacheTypeResolver is already in #24.

[wwerner]

I think the dependency resolver also requires #42 and touches on #18, which seems to have been updated in the meantime.

[wwerner]

Can be reproduced using the api calls in 3ba58f2#diff-aaf154ff3102258e75795d80b37a74c6R111

Preliminary analysis:

• The issue only seems to occur when request gets dispatched by ResourceHandlerActor, a test against the compiler alone works fine (io.vlingo.schemata.codegen.specs.JavaCodeGenTests#testThatGeneratesABasicTypeWithAllConsideredInnerTypes)
• io.vlingo.schemata.resource.CodeResource#queryCodeForLanguage fails w/ an NPE b/c its context (io.vlingo.http.resource.ResourceHandler#context) is null
• The context gets set in io.vlingo.http.resource.ResourceRequestHandlerActor#handleFor (io.vlingo.http.Context, java.util.function.Consumer)) but is null in CodeResource handler executor
  

What am I missing here?

Trying to temporarily work around the missing context shows that the Authorization would get validated afterwards in io.vlingo.schemata.query.CodeQueriesActor#validate. Currently, I can't see where the Authorization header would come from.

To reproduce in a unit/integration test, would it be good to spin up a server and run the api calls against it, or is there a smarter way?

[wwerner]

Closed as of #60