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.ioc.services.Coercion;
018import org.apache.tapestry5.ioc.services.CoercionTuple;
019import org.apache.tapestry5.model.MutableComponentModel;
020import org.apache.tapestry5.plastic.PlasticClass;
021import org.apache.tapestry5.services.ClassTransformation;
022import org.apache.tapestry5.services.ComponentClassTransformWorker;
023import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
024import org.apache.tapestry5.services.transform.TransformationSupport;
025
026/**
027 * A {@link org.apache.tapestry5.ioc.services.Coercion} for converting the
028 * deprecated ComponentClassTransformWorker to the new ComponentClassTransformWorker2.
029 */
030@SuppressWarnings("deprecation")
031public class CCTWToCCTW2Coercion implements Coercion<ComponentClassTransformWorker, ComponentClassTransformWorker2>
032{
033    public ComponentClassTransformWorker2 coerce(final ComponentClassTransformWorker oldStyleWorker)
034    {
035        return new ComponentClassTransformWorker2()
036        {
037            public void transform(PlasticClass plasticClass, TransformationSupport support, MutableComponentModel model)
038            {
039                ClassTransformation ct = new BridgeClassTransformation(plasticClass, support, model);
040
041                oldStyleWorker.transform(ct, model);
042            }
043        };
044    }
045
046    public static final CoercionTuple<ComponentClassTransformWorker, ComponentClassTransformWorker2> TUPLE = new CoercionTuple<ComponentClassTransformWorker, ComponentClassTransformWorker2>(
047            ComponentClassTransformWorker.class, ComponentClassTransformWorker2.class, new CCTWToCCTW2Coercion());
048}