// 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;

 import org.apache.tapestry5.ioc.internal.util.CollectionFactory;

 import org.apache.tapestry5.ioc.internal.util.InternalUtils;

 import org.apache.tapestry5.ioc.services.SymbolProvider;

 import javax.servlet.ServletContext;

 import java.util.Map;

 /**

  * A wrapper around {@link ServletContext} that makes init-parameters accessible as symbols.

  */

 public class ServletContextSymbolProvider implements SymbolProvider

 {

     private final Map<String, String> properties = CollectionFactory.newCaseInsensitiveMap();

     public ServletContextSymbolProvider(ServletContext context)

     {

         for (String name : InternalUtils.toList(context.getInitParameterNames()))

         {

             properties.put(name, context.getInitParameter(name));

         }

     }

     public String valueForSymbol(String symbolName)

     {

         return properties.get(symbolName);

     }

 }