private Object getVariable()

in geronimo-microprofile-reporter/src/main/java/org/apache/geronimo/microprofile/reporter/storage/templating/TemplatingEngine.java [299:353]
46 lines of code
11 McCabe index (conditional complexity)

    private Object getVariable(final Object registry, final String name) {
        if (registry == null) {
            return registry;
        }
        // map handling
        if (Map.class.isInstance(registry)) {
            return Map.class.cast(registry).get(name);
        }

        final Class<?> registryClass = registry.getClass();

        // array handling - foo.1.name syntax
        if (registryClass.isArray()) {
            return Array.get(registry, Integer.parseInt(name));
        }

        return accessors.computeIfAbsent(new AccessorKey(registryClass, name), key -> {
            // try getter
            try {
                final Method method = key.type
                        .getMethod("get" + Character.toUpperCase(key.name.charAt(0)) + key.name.substring(1));
                if (!method.isAccessible()) {
                    method.setAccessible(true);
                }
                return o -> {
                    try {
                        return method.invoke(o);
                    } catch (final IllegalAccessException e) {
                        throw new IllegalStateException(e);
                    } catch (final InvocationTargetException e) {
                        throw new IllegalStateException(e.getTargetException());
                    }
                };
            } catch (final NoSuchMethodException e) {
                // no-op
            }
            // try field
            try {
                final Field field = key.type.getDeclaredField(key.name);
                if (!field.isAccessible()) {
                    field.setAccessible(true);
                }
                return o -> {
                    try {
                        return field.get(o);
                    } catch (final IllegalAccessException e) {
                        throw new IllegalStateException(e);
                    }
                };
            } catch (final Exception e) {
                // no-op
            }
            return o -> null;
        }).apply(registry);
    }