001// Copyright 2009, 2010 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.ioc.internal.services;
016
017import java.util.Map;
018
019import org.apache.tapestry5.commons.AnnotationProvider;
020import org.apache.tapestry5.commons.ObjectLocator;
021import org.apache.tapestry5.commons.ObjectProvider;
022import org.apache.tapestry5.ioc.annotations.PreventServiceDecoration;
023import org.apache.tapestry5.ioc.services.ServiceOverride;
024
025@PreventServiceDecoration
026public class ServiceOverrideImpl implements ServiceOverride
027{
028    private final Map<Class, Object> configuration;
029
030    public ServiceOverrideImpl(Map<Class, Object> configuration)
031    {
032        this.configuration = configuration;
033    }
034
035    @Override
036    public ObjectProvider getServiceOverrideProvider()
037    {
038        return new ObjectProvider()
039        {
040            @Override
041            public <T> T provide(Class<T> objectType, AnnotationProvider annotationProvider, ObjectLocator locator)
042            {
043                return objectType.cast(configuration.get(objectType));
044            }
045        };
046    }
047}