private static ComponentMetadata getLanguageResolverReference()

in components/camel-blueprint/src/main/java/org/apache/camel/blueprint/handler/CamelNamespaceHandler.java [825:857]

30 lines of code
7 McCabe index (conditional complexity)


    private static ComponentMetadata getLanguageResolverReference(ParserContext context, String language) {
        // we cannot resolve language names using property placeholders at this point in time
        if (language.startsWith(PropertiesComponent.PREFIX_TOKEN)) {
            return null;
        }
        ComponentDefinitionRegistry componentDefinitionRegistry = context.getComponentDefinitionRegistry();
        ComponentMetadata cm = componentDefinitionRegistry.getComponentDefinition(".camelBlueprint.languageResolver." + language);
        if (cm == null) {
            MutableReferenceMetadata svc = context.createMetadata(MutableReferenceMetadata.class);
            svc.setId(".camelBlueprint.languageResolver." + language);
            svc.setFilter("(language=" + language + ")");
            svc.setAvailability(componentDefinitionRegistry.containsComponentDefinition(language) ? AVAILABILITY_OPTIONAL : AVAILABILITY_MANDATORY);
            try {
                // Try to set the runtime interface (only with aries blueprint > 0.1
                svc.getClass().getMethod("setRuntimeInterface", Class.class).invoke(svc, LanguageResolver.class);
            } catch (Throwable t) {
                // Check if the bundle can see the class
                try {
                    PassThroughMetadata ptm = (PassThroughMetadata) componentDefinitionRegistry.getComponentDefinition("blueprintBundle");
                    Bundle b = (Bundle) ptm.getObject();
                    if (b.loadClass(LanguageResolver.class.getName()) != LanguageResolver.class) {
                        throw new UnsupportedOperationException();
                    }
                    svc.setInterface(LanguageResolver.class.getName());
                } catch (Throwable t2) {
                    throw new UnsupportedOperationException();
                }
            }
            componentDefinitionRegistry.registerComponentDefinition(svc);
            cm = svc;
        }
        return cm;
    }