// Copyright 2008 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.EventContext;

 import org.apache.tapestry5.services.ContextValueEncoder;

 /**

  * Implementation based on values extracted from the URL (an event context, or a page activation context) that uses a

  * {@link org.apache.tapestry5.services.ContextValueEncoder} to convert from string values to the desired values.

  */

 public class URLEventContext implements EventContext

 {

     private final ContextValueEncoder valueEncoder;

     private final String[] values;

     public URLEventContext(ContextValueEncoder valueEncoder, String[] values)

     {

         this.valueEncoder = valueEncoder;

         this.values = values;

     }

     public int getCount()

     {

         return values == null ? 0 : values.length;

     }

     public <T> T get(Class<T> desiredType, int index)

     {

         return valueEncoder.toValue(desiredType, values[index]);

     }

 }