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    
015    package org.apache.tapestry5.ioc.internal.services;
016    
017    import java.util.Map;
018    
019    import org.apache.tapestry5.ioc.AnnotationProvider;
020    import org.apache.tapestry5.ioc.ObjectLocator;
021    import org.apache.tapestry5.ioc.ObjectProvider;
022    import org.apache.tapestry5.ioc.annotations.PreventServiceDecoration;
023    import org.apache.tapestry5.ioc.services.ServiceOverride;
024    
025    @PreventServiceDecoration
026    public 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        public ObjectProvider getServiceOverrideProvider()
036        {
037            return new ObjectProvider()
038            {
039                public <T> T provide(Class<T> objectType, AnnotationProvider annotationProvider, ObjectLocator locator)
040                {
041                    return objectType.cast(configuration.get(objectType));
042                }
043            };
044        }
045    }