| // Copyright 2006, 2007 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.tapestry.internal.services; |
| |
| import org.apache.tapestry.ioc.Messages; |
| import org.apache.tapestry.ioc.ObjectLocator; |
| import org.apache.tapestry.ioc.internal.util.CollectionFactory; |
| import org.apache.tapestry.model.MutableComponentModel; |
| import org.apache.tapestry.services.ClassTransformation; |
| import org.apache.tapestry.services.InjectionProvider; |
| import org.slf4j.Logger; |
| |
| import java.util.Locale; |
| import java.util.Map; |
| |
| /** |
| * Allows for a number of anonymous injections based on the type of field that is to be injected. |
| */ |
| public class CommonResourcesInjectionProvider implements InjectionProvider |
| { |
| private static final Map<Class, String> configuration = CollectionFactory.newMap(); |
| |
| { |
| configuration.put(Messages.class, "getMessages"); |
| configuration.put(Locale.class, "getLocale"); |
| configuration.put(Logger.class, "getLogger"); |
| configuration.put(String.class, "getCompleteId"); |
| } |
| |
| public boolean provideInjection(String fieldName, Class fieldType, ObjectLocator locator, |
| ClassTransformation transformation, MutableComponentModel componentModel) |
| { |
| String implementationMethodName = configuration.get(fieldType); |
| |
| if (implementationMethodName == null) return false; |
| |
| String resourcesField = transformation.getResourcesFieldName(); |
| |
| String body = String.format( |
| "%s = %s.%s();", |
| fieldName, |
| resourcesField, |
| implementationMethodName); |
| |
| transformation.makeReadOnly(fieldName); |
| |
| transformation.extendConstructor(body); |
| |
| return true; |
| } |
| } |