    001// Copyright 2007 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.beanmodel.internal.services;
    016
    017import java.lang.annotation.Annotation;
    018import java.lang.reflect.Type;
    019
    020import org.apache.tapestry5.beanmodel.PropertyConduit;
    021import org.apache.tapestry5.beanmodel.PropertyConduit2;
    022import org.apache.tapestry5.commons.services.TypeCoercer;
    023
    024public class CoercingPropertyConduitWrapper implements PropertyConduit2
    025{
    026    private final PropertyConduit conduit;
    027
    028    private final TypeCoercer coercer;
    029
    030    public CoercingPropertyConduitWrapper(final PropertyConduit conduit, final TypeCoercer coercer)
    031    {
    032        this.conduit = conduit;
    033        this.coercer = coercer;
    034    }
    035
    036    public Object get(Object instance)
    037    {
    038        return conduit.get(instance);
    039    }
    040
    041    public <T extends Annotation> T getAnnotation(Class<T> annotationClass)
    042    {
    043        return conduit.getAnnotation(annotationClass);
    044    }
    045
    046    public Class getPropertyType()
    047    {
    048        return conduit.getPropertyType();
    049    }
    050
    051    public Type getPropertyGenericType()
    052    {
    053        if (conduit instanceof PropertyConduit2) {
    054            return ((PropertyConduit2) conduit).getPropertyGenericType();
    055        }
    056        return conduit.getPropertyType();
    057    }
    058
    059    @SuppressWarnings("unchecked")
    060    public void set(Object instance, Object value)
    061    {
    062        Object coerced = coercer.coerce(value, getPropertyType());
    063
    064        conduit.set(instance, coerced);
    065    }
    066
    067}