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    
015    package org.apache.tapestry5.internal.transform;
016    
017    import org.apache.tapestry5.internal.services.ComponentClassCache;
018    import org.apache.tapestry5.ioc.ObjectLocator;
019    import org.apache.tapestry5.ioc.services.Coercion;
020    import org.apache.tapestry5.model.MutableComponentModel;
021    import org.apache.tapestry5.plastic.PlasticField;
022    import org.apache.tapestry5.services.InjectionProvider;
023    import 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     */
031    public 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    }