Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||||||
DefaultComponentResolver |
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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.impl; |
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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.Exchange; |
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22 | import org.apache.camel.spi.ComponentResolver; |
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23 | import org.apache.camel.util.FactoryFinder; |
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24 | import org.apache.camel.util.NoFactoryAvailableException; |
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25 | ||
26 | /** |
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27 | * The default implementation of {@link ComponentResolver} which tries to find |
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28 | * components by using the URI scheme prefix and searching for a file of the URI |
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29 | * scheme name in the <b>META-INF/services/org/apache/camel/component/</b> |
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30 | * directory on the classpath. |
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31 | * |
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32 | * @version $Revision: 563607 $ |
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33 | */ |
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34 | 243 | public class DefaultComponentResolver<E extends Exchange> implements ComponentResolver<E> { |
35 | 3 | protected static final FactoryFinder COMPONENT_FACTORY = |
36 | new FactoryFinder("META-INF/services/org/apache/camel/component/"); |
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37 | ||
38 | public Component<E> resolveComponent(String name, CamelContext context) { |
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39 | Class type; |
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40 | try { |
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41 | 411 | type = COMPONENT_FACTORY.findClass(name); |
42 | 0 | } catch (NoFactoryAvailableException e) { |
43 | 0 | return null; |
44 | 0 | } catch (Throwable e) { |
45 | 0 | throw new IllegalArgumentException("Invalid URI, no Component registered for scheme : " |
46 | + name, e); |
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47 | 411 | } |
48 | 411 | if (type == null) { |
49 | 0 | return null; |
50 | } |
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51 | 411 | if (Component.class.isAssignableFrom(type)) { |
52 | 411 | return (Component<E>)context.getInjector().newInstance(type); |
53 | } else { |
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54 | 0 | throw new IllegalArgumentException("Type is not a Component implementation. Found: " |
55 | + type.getName()); |
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56 | } |
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57 | } |
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58 | } |