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.ioc.services.Coercion;
018    import org.apache.tapestry5.ioc.services.CoercionTuple;
019    import org.apache.tapestry5.model.MutableComponentModel;
020    import org.apache.tapestry5.plastic.PlasticClass;
021    import org.apache.tapestry5.services.ClassTransformation;
022    import org.apache.tapestry5.services.ComponentClassTransformWorker;
023    import org.apache.tapestry5.services.transform.ComponentClassTransformWorker2;
024    import 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")
031    public 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    }