Add Glue Service

[tomvachon]

No description provided.

[svenwltr]

You still could use a switch here. Something like this:

switch {
case classifier.GrokClassifier != nil:
    resources = append(resources, &GlueClassifier{
        svc:  svc,
        name: classifier.GrokClassifier.Name,
    })
case classifier.JsonClassifier != nil:
    resources = append(resources, &GlueClassifier{
        svc:  svc,
        name: classifier.JsonClassifier.Name,
    })
case classifier.XMLClassifier != nil:
    resources = append(resources, &GlueClassifier{
        svc:  svc,
        name: classifier.XMLClassifier.Name,
    })
}

I like the switch a bit more here, because as a reader it is more obvious, that only one block should be executed. Also note that Golang doesn't fall through by default.

[tomvachon]

OK, ill make a change