// Copyright 2007 The Apache Software Foundation

 //

 // Licensed under the Apache License, Version 2.0 (the "License");

 // you may not use this file except in compliance with the License.

 // You may obtain a copy of the License at

 //

 //     http://www.apache.org/licenses/LICENSE-2.0

 //

 // Unless required by applicable law or agreed to in writing, software

 // distributed under the License is distributed on an "AS IS" BASIS,

 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 // See the License for the specific language governing permissions and

 // limitations under the License.

 package org.apache.tapestry5.internal.services;

 import org.apache.tapestry5.services.ApplicationStatePersistenceStrategy;

 import org.apache.tapestry5.services.ApplicationStatePersistenceStrategySource;

 import java.util.Map;

 public class ApplicationStatePersistenceStrategySourceImpl implements

         ApplicationStatePersistenceStrategySource

 {

     private final Map<String, ApplicationStatePersistenceStrategy> configuration;

     public ApplicationStatePersistenceStrategySourceImpl(Map<String, ApplicationStatePersistenceStrategy> configuration)

     {

         this.configuration = configuration;

     }

     public ApplicationStatePersistenceStrategy get(String name)

     {

         ApplicationStatePersistenceStrategy result = configuration.get(name);

         if (result == null)

             throw new RuntimeException(ServicesMessages.missingApplicationStatePersistenceStrategy(

                     name,

                     configuration.keySet()));

         return result;

     }

 }