private void writeDocumentation()

in src/main/java/org/apache/nifi/NarMojo.java [661:690]

• 24 lines of code
• 5 McCabe index (conditional complexity)

    private void writeDocumentation(final ExtensionDefinition extensionDefinition, final ExtensionClassLoader classLoader,
                                    final Class<?> docWriterClass, final XMLStreamWriter xmlWriter)
        throws NoSuchMethodException, IllegalAccessException, InvocationTargetException, InstantiationException, ClassNotFoundException {

        getLog().debug("Generating documentation for " + extensionDefinition.getExtensionName() + " using ClassLoader:" + System.lineSeparator() + classLoader.toTree());
        final Object docWriter = docWriterClass.getConstructor(XMLStreamWriter.class).newInstance(xmlWriter);
        final Class<?> configurableComponentClass = Class.forName("org.apache.nifi.components.ConfigurableComponent", false, classLoader);

        final Class<?> extensionClass = Class.forName(extensionDefinition.getExtensionName(), false, classLoader);
        final Object extensionInstance = extensionClass.getDeclaredConstructor().newInstance();

        final Method initMethod = docWriterClass.getMethod("initialize", configurableComponentClass);
        initMethod.invoke(docWriter, extensionInstance);

        final Map<String,ServiceAPIDefinition> propertyServiceDefinitions = getRequiredServiceDefinitions(extensionClass, extensionInstance);
        final Set<ServiceAPIDefinition> providedServiceDefinitions = extensionDefinition.getProvidedServiceAPIs();

        if ((providedServiceDefinitions == null || providedServiceDefinitions.isEmpty())
                && (propertyServiceDefinitions == null || propertyServiceDefinitions.isEmpty())) {
            final Method writeMethod = docWriterClass.getMethod("write", configurableComponentClass);
            writeMethod.invoke(docWriter, extensionInstance);
        } else {
            final Class<?> serviceApiClass = Class.forName("org.apache.nifi.documentation.StandardServiceAPI", false, classLoader);
            final List<Object> providedServices = getDocumentationServiceAPIs(serviceApiClass, providedServiceDefinitions);
            final Map<String,Object> propertyServices = getDocumentationServiceAPIs(serviceApiClass, propertyServiceDefinitions);

            final Method writeMethod = docWriterClass.getMethod("write", configurableComponentClass, Collection.class, Map.class);
            writeMethod.invoke(docWriter, extensionInstance, providedServices, propertyServices);
        }
    }