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;
16:
17: import java.util.Map;
18:
19: import javax.servlet.ServletContext;
20:
21: import org.apache.tapestry.ioc.internal.util.CollectionFactory;
22: import org.apache.tapestry.ioc.internal.util.InternalUtils;
23: import org.apache.tapestry.ioc.services.SymbolProvider;
24:
25: /**
26: * A wrapper around {@link ServletContext} that makes init-parameters accessible as symbols.
27: */
28: public class ServletContextSymbolProvider implements SymbolProvider {
29: private final Map<String, String> _properties = CollectionFactory
30: .newCaseInsensitiveMap();
31:
32: public ServletContextSymbolProvider(ServletContext context) {
33: for (String name : InternalUtils.toList(context
34: .getInitParameterNames())) {
35: _properties.put(name, context.getInitParameter(name));
36: }
37: }
38:
39: public String valueForSymbol(String symbolName) {
40: return _properties.get(symbolName);
41: }
42:
43: }
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