Examples with AbstractContributionDef org.apache.tapestry5.http.internal.AbstractContributionDef used on opensource projects

Example 1 with AbstractContributionDef

use of org.apache.tapestry5.http.internal.AbstractContributionDef in project tapestry-5 by apache.

the class SpringModuleDef method createContributionToMasterObjectProvider.

private ContributionDef createContributionToMasterObjectProvider() {
    ContributionDef def = new AbstractContributionDef() {

        @Override
        public String getServiceId() {
            return "MasterObjectProvider";
        }

        @Override
        public void contribute(ModuleBuilderSource moduleSource, ServiceResources resources, OrderedConfiguration configuration) {
            final OperationTracker tracker = resources.getTracker();
            final ApplicationContext context = resources.getService(SERVICE_ID, ApplicationContext.class);
            final ObjectProvider springBeanProvider = new ObjectProvider() {

                @Override
                public <T> T provide(Class<T> objectType, AnnotationProvider annotationProvider, ObjectLocator locator) {
                    Map beanMap = context.getBeansOfType(objectType);
                    switch(beanMap.size()) {
                        case 0:
                            return null;
                        case 1:
                            Object bean = beanMap.values().iterator().next();
                            return objectType.cast(bean);
                        default:
                            String message = String.format("Spring context contains %d beans assignable to type %s: %s.", beanMap.size(), PlasticUtils.toTypeName(objectType), InternalUtils.joinSorted(beanMap.keySet()));
                            throw new IllegalArgumentException(message);
                    }
                }
            };
            final ObjectProvider springBeanProviderInvoker = new ObjectProvider() {

                @Override
                public <T> T provide(final Class<T> objectType, final AnnotationProvider annotationProvider, final ObjectLocator locator) {
                    return tracker.invoke("Resolving dependency by searching Spring ApplicationContext", new Invokable<T>() {

                        @Override
                        public T invoke() {
                            return springBeanProvider.provide(objectType, annotationProvider, locator);
                        }
                    });
                }
            };
            ObjectProvider outerCheck = new ObjectProvider() {

                @Override
                public <T> T provide(Class<T> objectType, AnnotationProvider annotationProvider, ObjectLocator locator) {
                    if (!applicationContextCreated.get())
                        return null;
                    return springBeanProviderInvoker.provide(objectType, annotationProvider, locator);
                }
            };
            configuration.add("SpringBean", outerCheck, "after:AnnotationBasedContributions", "after:ServiceOverride");
        }
    };
    return def;
}