Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
SpringComponentResolver |
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| 0.0;0 |
1 | /** |
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2 | * Licensed to the Apache Software Foundation (ASF) under one or more |
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3 | * contributor license agreements. See the NOTICE file distributed with |
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4 | * this work for additional information regarding copyright ownership. |
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5 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
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6 | * (the "License"); you may not use this file except in compliance with |
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7 | * the License. You may obtain a copy of the License at |
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8 | * |
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9 | * http://www.apache.org/licenses/LICENSE-2.0 |
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10 | * |
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11 | * Unless required by applicable law or agreed to in writing, software |
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12 | * distributed under the License is distributed on an "AS IS" BASIS, |
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13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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14 | * See the License for the specific language governing permissions and |
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15 | * limitations under the License. |
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16 | */ |
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17 | package org.apache.camel.spring.spi; |
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18 | ||
19 | import org.apache.camel.CamelContext; |
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20 | import org.apache.camel.Component; |
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21 | import org.apache.camel.spi.ComponentResolver; |
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22 | ||
23 | import org.springframework.beans.factory.NoSuchBeanDefinitionException; |
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24 | import org.springframework.context.ApplicationContext; |
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25 | ||
26 | import static org.apache.camel.util.ObjectHelper.notNull; |
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27 | ||
28 | /** |
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29 | * An implementation of {@link ComponentResolver} which tries to find a Camel |
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30 | * {@link Component} in the Spring {@link ApplicationContext} first; if its not |
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31 | * there it defaults to the auto-discovery mechanism. |
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32 | * |
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33 | * @version $Revision: 563665 $ |
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34 | */ |
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35 | public class SpringComponentResolver implements ComponentResolver { |
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36 | private final ApplicationContext applicationContext; |
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37 | private final ComponentResolver nextResolver; |
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38 | ||
39 | 53 | public SpringComponentResolver(ApplicationContext applicationContext, ComponentResolver nextResolver) { |
40 | 53 | notNull(applicationContext, "applicationContext"); |
41 | 53 | this.applicationContext = applicationContext; |
42 | 53 | this.nextResolver = nextResolver; |
43 | 53 | } |
44 | ||
45 | public Component resolveComponent(String name, CamelContext context) throws Exception { |
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46 | 79 | Object bean = null; |
47 | try { |
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48 | 79 | bean = applicationContext.getBean(name); |
49 | 79 | } catch (NoSuchBeanDefinitionException e) { |
50 | // ignore its not an error |
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51 | 0 | } |
52 | 79 | if (bean != null) { |
53 | 0 | if (bean instanceof Component) { |
54 | 0 | return (Component)bean; |
55 | } else { |
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56 | 0 | throw new IllegalArgumentException("Bean with name: " + name + " in spring context is not a Component: " + bean); |
57 | } |
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58 | } |
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59 | 79 | if (nextResolver == null) { |
60 | 0 | return null; |
61 | } |
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62 | 79 | return nextResolver.resolveComponent(name, context); |
63 | } |
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64 | } |