private void setupTemplateEngine()

in src/main/java/org/apache/sling/scripting/thymeleaf/internal/ThymeleafScriptEngineFactory.java [351:412]
51 lines of code
14 McCabe index (conditional complexity)

    private void setupTemplateEngine() {
        logger.info("setting up new template engine");
        templateEngine = null;
        if (configuration == null) {
            logger.info("configuration is null, not setting up new template engine");
            return;
        }

        if (!configuration.useStandardEngineContextFactory() && engineContextFactory == null) {
            logger.info("no engine context factory available, not setting up new template engine");
            return;
        }

        // setup template engine
        final TemplateEngine templateEngine = new TemplateEngine();
        // Template Resolvers
        if (this.templateResolvers != null) {
            final Set<ITemplateResolver> templateResolvers = new HashSet<>(this.templateResolvers);
            templateEngine.setTemplateResolvers(templateResolvers);
        }
        // Message Resolvers
        if (this.messageResolvers != null) {
            final Set<IMessageResolver> messageResolvers = new HashSet<>(this.messageResolvers);
            templateEngine.setMessageResolvers(messageResolvers);
        }
        if (configuration.useStandardMessageResolver()) {
            final IMessageResolver standardMessageResolver = new StandardMessageResolver();
            templateEngine.addMessageResolver(standardMessageResolver);
        }
        // Link Builders
        if (this.linkBuilders != null) {
            final Set<ILinkBuilder> linkBuilders = new HashSet<>(this.linkBuilders);
            templateEngine.setLinkBuilders(linkBuilders);
        }
        if (configuration.useStandardLinkBuilder()) {
            final ILinkBuilder standardLinkBuilder = new StandardLinkBuilder();
            templateEngine.addLinkBuilder(standardLinkBuilder);
        }
        // Dialects
        if (this.dialects != null) {
            final Set<IDialect> dialects = new HashSet<>(this.dialects);
            templateEngine.setDialects(dialects);
        }
        if (configuration.useStandardDialect()) {
            final IDialect standardDialect = new StandardDialect();
            templateEngine.addDialect(standardDialect);
        }
        // Decoupled Template Logic Resolver
        if (!configuration.useStandardDecoupledTemplateLogicResolver()) {
            templateEngine.setDecoupledTemplateLogicResolver(decoupledTemplateLogicResolver);
        }
        // Cache Manager
        if (!configuration.useStandardCacheManager()) {
            templateEngine.setCacheManager(cacheManager);
        }
        // Engine Context Factory
        if (!configuration.useStandardEngineContextFactory()) {
            templateEngine.setEngineContextFactory(engineContextFactory);
        }
        //
        this.templateEngine = templateEngine;
    }