Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
SpringRouteBuilder |
|
| 0.0;0 |
1 | /** |
|
2 | * |
|
3 | * Licensed to the Apache Software Foundation (ASF) under one or more |
|
4 | * contributor license agreements. See the NOTICE file distributed with |
|
5 | * this work for additional information regarding copyright ownership. |
|
6 | * The ASF licenses this file to You under the Apache License, Version 2.0 |
|
7 | * (the "License"); you may not use this file except in compliance with |
|
8 | * the License. You may obtain a copy of the License at |
|
9 | * |
|
10 | * http://www.apache.org/licenses/LICENSE-2.0 |
|
11 | * |
|
12 | * Unless required by applicable law or agreed to in writing, software |
|
13 | * distributed under the License is distributed on an "AS IS" BASIS, |
|
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
15 | * See the License for the specific language governing permissions and |
|
16 | * limitations under the License. |
|
17 | */ |
|
18 | package org.apache.camel.spring; |
|
19 | ||
20 | import org.apache.camel.CamelContext; |
|
21 | import org.apache.camel.Exchange; |
|
22 | import org.apache.camel.builder.RouteBuilder; |
|
23 | import org.springframework.context.ApplicationContext; |
|
24 | ||
25 | /** |
|
26 | * An extension of the {@link RouteBuilder} to provide some additional helper methods |
|
27 | * |
|
28 | * @version $Revision: 1.1 $ |
|
29 | */ |
|
30 | 0 | public abstract class SpringRouteBuilder extends RouteBuilder { |
31 | private ApplicationContext applicationContext; |
|
32 | ||
33 | /** |
|
34 | * Looks up the bean with the given name in the application context and returns it, or throws an exception if the |
|
35 | * bean is not present or is not of the given type |
|
36 | * |
|
37 | * @param type the type of the bean |
|
38 | * @param beanName the name of the bean in the application context |
|
39 | * @return the bean |
|
40 | */ |
|
41 | public <T> T bean(Class<T> type, String beanName) { |
|
42 | 0 | ApplicationContext context = getApplicationContext(); |
43 | 0 | return (T) context.getBean(beanName, type); |
44 | } |
|
45 | ||
46 | /** |
|
47 | * Looks up the bean with the given type in the application context and returns it, or throws an exception if the |
|
48 | * bean is not present or there are multiple possible beans to choose from for the given type |
|
49 | * |
|
50 | * @param type the type of the bean |
|
51 | * @return the bean |
|
52 | */ |
|
53 | public <T> T bean(Class<T> type) { |
|
54 | 0 | ApplicationContext context = getApplicationContext(); |
55 | 0 | String[] names = context.getBeanNamesForType(type, true, true); |
56 | 0 | if (names != null) { |
57 | 0 | int count = names.length; |
58 | 0 | if (count == 1) { |
59 | // lets instantiate the single bean |
|
60 | 0 | return (T) context.getBean(names[0]); |
61 | } |
|
62 | 0 | else if (count > 1) { |
63 | 0 | throw new IllegalArgumentException("Too many beans in the application context of type: " + type + ". Found: " + count); |
64 | } |
|
65 | } |
|
66 | 0 | throw new IllegalArgumentException("No bean available in the application context of type: " + type); |
67 | } |
|
68 | ||
69 | /** |
|
70 | * Returns the application context which has been configured via the {@link #setApplicationContext(ApplicationContext)} |
|
71 | * method or from the underlying {@link SpringCamelContext} |
|
72 | * |
|
73 | * @return |
|
74 | */ |
|
75 | public ApplicationContext getApplicationContext() { |
|
76 | 0 | if (applicationContext == null) { |
77 | 0 | CamelContext camelContext = getContext(); |
78 | 0 | if (camelContext instanceof SpringCamelContext) { |
79 | 0 | SpringCamelContext springCamelContext = (SpringCamelContext) camelContext; |
80 | 0 | return springCamelContext.getApplicationContext(); |
81 | } |
|
82 | else { |
|
83 | 0 | throw new IllegalArgumentException("This SpringBuilder is not being used with a SpringCamelContext and there is no applicationContext property configured"); |
84 | } |
|
85 | } |
|
86 | 0 | return applicationContext; |
87 | } |
|
88 | ||
89 | /** |
|
90 | * Sets the application context to use to lookup beans |
|
91 | */ |
|
92 | public void setApplicationContext(ApplicationContext applicationContext) { |
|
93 | 0 | this.applicationContext = applicationContext; |
94 | 0 | } |
95 | } |