| Classes in this File | Line Coverage | Branch Coverage | Complexity | |||||||
| ExpressionHelper |
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| 0.0;0 |
| 1 | /** |
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| 2 | * |
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| 3 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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| 4 | * contributor license agreements. See the NOTICE file distributed with |
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| 5 | * this work for additional information regarding copyright ownership. |
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| 6 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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| 7 | * (the "License"); you may not use this file except in compliance with |
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| 8 | * the License. You may obtain a copy of the License at |
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| 9 | * |
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| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
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| 11 | * |
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| 12 | * Unless required by applicable law or agreed to in writing, software |
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| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
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| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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| 15 | * See the License for the specific language governing permissions and |
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| 16 | * limitations under the License. |
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| 17 | */ |
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| 18 | package org.apache.camel.util; |
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| 19 | ||
| 20 | import org.apache.camel.Exchange; |
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| 21 | import org.apache.camel.Expression; |
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| 22 | ||
| 23 | /** |
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| 24 | * A collection of helper methods for working with expressions. |
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| 25 | * |
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| 26 | * @version $Revision: 1.1 $ |
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| 27 | */ |
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| 28 | 0 | public class ExpressionHelper { |
| 29 | ||
| 30 | /** |
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| 31 | * Evaluates the given expression on the exchange as a String value |
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| 32 | * |
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| 33 | * @param expression the expression to evaluate |
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| 34 | * @param exchange the exchange to use to evaluate the expression |
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| 35 | * @return the result of the evaluation as a string. |
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| 36 | */ |
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| 37 | public static <E extends Exchange> String evaluateAsString(Expression<E> expression, E exchange) { |
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| 38 | 6 | return evaluateAsType(expression, exchange, String.class); |
| 39 | } |
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| 40 | ||
| 41 | /** |
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| 42 | * Evaluates the given expression on the exchange, converting the result to the given type |
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| 43 | * |
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| 44 | * @param expression the expression to evaluate |
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| 45 | * @param exchange the exchange to use to evaluate the expression |
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| 46 | * @param resultType the type of the result that is required |
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| 47 | * @return the result of the evaluation as the specified type. |
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| 48 | */ |
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| 49 | public static <T, E extends Exchange> T evaluateAsType(Expression<E> expression, E exchange, Class<T> resultType) { |
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| 50 | 6 | Object value = expression.evaluate(exchange); |
| 51 | 6 | return exchange.getContext().getTypeConverter().convertTo(resultType, value); |
| 52 | } |
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| 53 | } |