public Object getFieldValue()

in wicket-guice/src/main/java/org/apache/wicket/guice/GuiceFieldValueFactory.java [57:116]
53 lines of code
16 McCabe index (conditional complexity)

	public Object getFieldValue(final Field field, final Object fieldOwner)
	{
		Object target = null;

		if (supportsField(field))
		{
			Inject injectAnnotation = field.getAnnotation(Inject.class);
			jakarta.inject.Inject jakartaInjectAnnotation = field.getAnnotation(jakarta.inject.Inject.class);
			if (!Modifier.isStatic(field.getModifiers()) && (injectAnnotation != null || jakartaInjectAnnotation != null))
			{
				try
				{
					boolean optional = injectAnnotation != null && injectAnnotation.optional();
					Annotation bindingAnnotation = findBindingAnnotation(field.getAnnotations());
					final GuiceProxyTargetLocator locator = new GuiceProxyTargetLocator(field, bindingAnnotation, optional);

					Object cachedValue = cache.get(locator);
					if (cachedValue != null)
					{
						return cachedValue == NULL_SENTINEL ? null : cachedValue;
					}

					target = locator.locateProxyTarget();
					if (target == null)
					{
						// Optional without a binding, return null
					}
					else
					{
						if (wrapInProxies)
						{
							target = LazyInitProxyFactory.createProxy(field.getType(), locator);
						}
					}

					if (locator.isSingletonScope())
					{
						Object tmpTarget = cache.putIfAbsent(locator, target == null ? NULL_SENTINEL : target);
						if (tmpTarget != null)
						{
							target = tmpTarget;
						}
					}

					if (!field.canAccess(fieldOwner))
					{
						field.setAccessible(true);
					}
				}
				catch (MoreThanOneBindingException e)
				{
					throw new RuntimeException(
							"Can't have more than one BindingAnnotation on field " + field.getName() +
									" of class " + fieldOwner.getClass().getName());
				}
			}
		}

		return target == NULL_SENTINEL ? null : target;
	}