fun buildServiceInterface()

in thrifty-java-codegen/src/main/kotlin/com/microsoft.thrifty.gen/ServiceBuilder.kt [47:106]
45 lines of code
7 McCabe index (conditional complexity)

    fun buildServiceInterface(service: ServiceType): TypeSpec {
        val serviceSpec = TypeSpec.interfaceBuilder(service.name)
                .addModifiers(Modifier.PUBLIC)

        service.documentation.let {
            if (it.isNotEmpty()) {
                serviceSpec.addJavadoc(it)
            }
        }

        if (service.isDeprecated) {
            serviceSpec.addAnnotation(AnnotationSpec.builder(Deprecated::class.java).build())
        }

        service.extendsService?.let {
            val superType = it.trueType
            val superTypeName = typeResolver.getJavaClass(superType)
            serviceSpec.addSuperinterface(superTypeName)
        }

        for (method in service.methods) {
            val allocator = NameAllocator()
            var tag = 0

            val methodBuilder = MethodSpec.methodBuilder(method.name)
                    .addModifiers(Modifier.PUBLIC, Modifier.ABSTRACT)

            if (method.hasJavadoc) {
                methodBuilder.addJavadoc(method.documentation)
            }

            for (field in method.parameters) {
                val fieldName = fieldNamer.getName(field)
                val name = allocator.newName(fieldName, ++tag)
                val paramType = field.type.trueType
                val paramTypeName = typeResolver.getJavaClass(paramType)

                methodBuilder.addParameter(paramTypeName, name)

            }

            val callbackName = allocator.newName("callback", ++tag)

            val returnType = method.returnType
            val returnTypeName = if (returnType == BuiltinType.VOID) {
                ClassName.get("kotlin", "Unit")
            } else {
                typeResolver.getJavaClass(returnType.trueType)
            }

            val callbackInterfaceName = ParameterizedTypeName.get(
                    TypeNames.SERVICE_CALLBACK, returnTypeName)

            methodBuilder.addParameter(callbackInterfaceName, callbackName)

            serviceSpec.addMethod(methodBuilder.build())
        }

        return serviceSpec.build()
    }