How to reference OpenAPI Generator task properties - swagger-codegen

Question

I am attempting to reference assigned property generatorName when setting outputDir.
Attempted to reference generatorName property using same syntax as other task properties (i.e. $buildDir). Also attempted to more fully qualify the property name openApiGenerator.generatorName.
openApiGenerate {
verbose = false
generatorName = "html2" // assignment to property
inputSpec = "$buildDir/swagger/testing.yml".toString()
//outputDir = "$buildDir/generated".toString()
outputDir = "$buildDir/generated/$generatorName".toString() // fails
apiPackage = "org.openapi.example.api"
invokerPackage = "org.openapi.example.invoker"
modelPackage = "org.openapi.example.model"
// debugging code
println " buildDir: $buildDir".toString()
println " generatorName: $generatorName".toString() // this fails
}
output from debugging code shows failure to reference generatorName property:
> Configure project :
buildDir: C:\Users\jgunchy\repos\testingproject\build
generatorName: property(class java.lang.String, fixed(class java.lang.String, html2))

Answer 1

This is an observable property, not a string. You should be able to access the underlying string using .get() like this:
openApiGenerate {
verbose = false
generatorName = "html2"
inputSpec = "$buildDir/swagger/testing.yml".toString()
outputDir = "$buildDir/generated/${generatorName.get()}".toString()
apiPackage = "org.openapi.example.api"
invokerPackage = "org.openapi.example.invoker"
modelPackage = "org.openapi.example.model"
}
Another option would be to use configuration rather than the project extension container's properties directly. For instance, add to gradle.properties:
generatorName=html2
Then, your configuration would look like this:
openApiGenerate {
verbose = false
generatorName = project.ext.generatorName
inputSpec = "$buildDir/swagger/testing.yml".toString()
outputDir = "$buildDir/${project.ext.generatorName}".toString()
apiPackage = "org.openapi.example.api"
invokerPackage = "org.openapi.example.invoker"
modelPackage = "org.openapi.example.model"
}
$buildDir is a getter on the Project instance with a toString() method that happens to output the File path, which is why it behaves differently.