Coverage Report - org.apache.camel.util.ExpressionHelper
 
Classes in this File Line Coverage Branch Coverage Complexity
ExpressionHelper
60% 
N/A 
0
 
 1  
 /**
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to You under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 package org.apache.camel.util;
 18  
 
 19  
 import org.apache.camel.Exchange;
 20  
 import org.apache.camel.Expression;
 21  
 
 22  
 /**
 23  
  * A collection of helper methods for working with expressions.
 24  
  * 
 25  
  * @version $Revision: 1.1 $
 26  
  */
 27  
 public class ExpressionHelper {
 28  
 
 29  
     /**
 30  
      * Utility classes should not have a public constructor.
 31  
      */
 32  0
     private ExpressionHelper() {        
 33  0
     }
 34  
 
 35  
     /**
 36  
      * Evaluates the given expression on the exchange as a String value
 37  
      * 
 38  
      * @param expression the expression to evaluate
 39  
      * @param exchange the exchange to use to evaluate the expression
 40  
      * @return the result of the evaluation as a string.
 41  
      */
 42  
     public static <E extends Exchange> String evaluateAsString(Expression<E> expression, E exchange) {
 43  18
         return evaluateAsType(expression, exchange, String.class);
 44  
     }
 45  
 
 46  
     /**
 47  
      * Evaluates the given expression on the exchange, converting the result to
 48  
      * the given type
 49  
      * 
 50  
      * @param expression the expression to evaluate
 51  
      * @param exchange the exchange to use to evaluate the expression
 52  
      * @param resultType the type of the result that is required
 53  
      * @return the result of the evaluation as the specified type.
 54  
      */
 55  
     public static <T, E extends Exchange> T evaluateAsType(Expression<E> expression, E exchange,
 56  
                                                            Class<T> resultType) {
 57  21
         Object value = expression.evaluate(exchange);
 58  21
         return exchange.getContext().getTypeConverter().convertTo(resultType, value);
 59  
     }
 60  
 }