| // Copyright 2010 The Apache Software Foundation |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package org.apache.tapestry5.ioc.internal; |
| |
| import org.apache.tapestry5.ioc.GreenMarker; |
| import org.apache.tapestry5.ioc.Greeter; |
| import org.apache.tapestry5.ioc.Invocation; |
| import org.apache.tapestry5.ioc.MethodAdvice; |
| import org.apache.tapestry5.ioc.RedMarker; |
| import org.apache.tapestry5.ioc.ServiceResources; |
| import org.apache.tapestry5.ioc.annotations.Decorate; |
| import org.apache.tapestry5.ioc.annotations.Local; |
| import org.apache.tapestry5.ioc.annotations.Marker; |
| import org.apache.tapestry5.ioc.annotations.Order; |
| import org.apache.tapestry5.ioc.services.AspectDecorator; |
| import org.apache.tapestry5.ioc.services.AspectInterceptorBuilder; |
| |
| |
| public class DecorateByMarkerModule |
| { |
| |
| @Decorate(serviceInterface=Greeter.class) |
| @GreenMarker |
| public static <T> T greeter(ServiceResources resources, T delegate, AspectDecorator aspectDecorator) |
| { |
| return doDecorate("foo", resources, delegate, aspectDecorator); |
| } |
| |
| @Decorate(serviceInterface=Greeter.class, id="bar") |
| @GreenMarker |
| @Order("after:Greeter") |
| public static <T> T greeter2(ServiceResources resources, T delegate, AspectDecorator aspectDecorator) |
| { |
| return doDecorate("bar", resources, delegate, aspectDecorator); |
| } |
| |
| @Decorate(serviceInterface=Greeter.class, id="baz") |
| @GreenMarker |
| @Order({"after:Greeter", "before:bar"}) |
| public static <T> T greeter3(ServiceResources resources, T delegate, AspectDecorator aspectDecorator) |
| { |
| return doDecorate("baz", resources, delegate, aspectDecorator); |
| } |
| |
| @Decorate(serviceInterface=Greeter.class, id="barney") |
| @Local |
| public static <T> T localAdvise(ServiceResources resources, T delegate, AspectDecorator aspectDecorator) |
| { |
| return doDecorate("barney", resources, delegate, aspectDecorator); |
| } |
| |
| private static <T> T doDecorate(final String decoratorId, ServiceResources resources, T delegate, AspectDecorator aspectDecorator) |
| { |
| Class<T> serviceInterface = resources.getServiceInterface(); |
| |
| AspectInterceptorBuilder<T> builder = aspectDecorator.createBuilder(serviceInterface, delegate, String.format( |
| "<Interceptor for %s(%s)>", resources.getServiceId(), serviceInterface.getName())); |
| |
| builder.adviseAllMethods(new MethodAdvice() |
| { |
| |
| public void advise(Invocation invocation) |
| { |
| invocation.proceed(); |
| |
| Object result = invocation.getResult(); |
| |
| invocation.overrideResult(String.format("Decorated by %s[%s]", decoratorId, result)); |
| |
| } |
| }); |
| |
| return builder.build(); |
| } |
| |
| @Marker(RedMarker.class) |
| public Greeter buildRedGreeter() |
| { |
| return new Greeter() |
| { |
| public String getGreeting() |
| { |
| return "Red"; |
| } |
| }; |
| } |
| |
| } |