01: // Copyright 2007 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.internal.services;
16:
17: import java.util.Map;
18:
19: import org.apache.tapestry.services.ApplicationStatePersistenceStrategy;
20: import org.apache.tapestry.services.ApplicationStatePersistenceStrategySource;
21:
22: public class ApplicationStatePersistenceStrategySourceImpl implements
23: ApplicationStatePersistenceStrategySource {
24: private final Map<String, ApplicationStatePersistenceStrategy> _configuration;
25:
26: public ApplicationStatePersistenceStrategySourceImpl(
27: Map<String, ApplicationStatePersistenceStrategy> configuration) {
28: _configuration = configuration;
29: }
30:
31: public ApplicationStatePersistenceStrategy get(String name) {
32: ApplicationStatePersistenceStrategy result = _configuration
33: .get(name);
34:
35: if (result == null)
36: throw new RuntimeException(ServicesMessages
37: .missingApplicationStatePersistenceStrategy(name,
38: _configuration.keySet()));
39:
40: return result;
41: }
42: }
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