001// Copyright 2011 The Apache Software Foundation
002//
003// Licensed under the Apache License, Version 2.0 (the "License");
004// you may not use this file except in compliance with the License.
005// You may obtain a copy of the License at
006//
007//     http://www.apache.org/licenses/LICENSE-2.0
008//
009// Unless required by applicable law or agreed to in writing, software
010// distributed under the License is distributed on an "AS IS" BASIS,
011// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
012// See the License for the specific language governing permissions and
013// limitations under the License.
014
015package org.apache.tapestry5.internal.transform;
016
017import org.apache.tapestry5.internal.services.ComponentClassCache;
018import org.apache.tapestry5.ioc.ObjectLocator;
019import org.apache.tapestry5.ioc.services.Coercion;
020import org.apache.tapestry5.model.MutableComponentModel;
021import org.apache.tapestry5.plastic.PlasticField;
022import org.apache.tapestry5.services.InjectionProvider;
023import org.apache.tapestry5.services.transform.InjectionProvider2;
024
025
026/**
027 * Converts the deprecated {@link InjectionProvider} to the new {@link InjectionProvider2}.
028 *
029 * @since 5.3
030 */
031public class InjectionProviderToInjectionProvider2 implements Coercion<InjectionProvider, InjectionProvider2>
032{
033    private final ComponentClassCache classCache;
034
035    public InjectionProviderToInjectionProvider2(ComponentClassCache classCache)
036    {
037        this.classCache = classCache;
038    }
039
040    public InjectionProvider2 coerce(final InjectionProvider input)
041    {
042        return new InjectionProvider2()
043        {
044            public boolean provideInjection(PlasticField field, ObjectLocator locator, MutableComponentModel componentModel)
045            {
046                Class fieldType = classCache.forName(field.getTypeName());
047
048                // We don't currently provide a TransformationSupport into the BridgeClassTransformation,
049                // as it should not be needed.
050
051                return input.provideInjection(field.getName(), fieldType, locator,
052                        new BridgeClassTransformation(field.getPlasticClass(), null, componentModel), componentModel);
053            }
054        };
055    }
056}