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.internal.services; 016 017import org.apache.tapestry5.services.ApplicationStatePersistenceStrategy; 018import org.apache.tapestry5.services.ApplicationStatePersistenceStrategySource; 019 020import java.util.Map; 021 022public class ApplicationStatePersistenceStrategySourceImpl implements 023 ApplicationStatePersistenceStrategySource 024{ 025 private final Map<String, ApplicationStatePersistenceStrategy> configuration; 026 027 public ApplicationStatePersistenceStrategySourceImpl(Map<String, ApplicationStatePersistenceStrategy> configuration) 028 { 029 this.configuration = configuration; 030 } 031 032 public ApplicationStatePersistenceStrategy get(String name) 033 { 034 ApplicationStatePersistenceStrategy result = configuration.get(name); 035 036 if (result == null) 037 throw new RuntimeException(ServicesMessages.missingApplicationStatePersistenceStrategy( 038 name, 039 configuration.keySet())); 040 041 return result; 042 } 043}