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| <pre><span class="sourceLineNo">001</span>package org.apache.archiva.repository.features;<a name="line.1"></a> |
| <span class="sourceLineNo">002</span><a name="line.2"></a> |
| <span class="sourceLineNo">003</span>/*<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * or more contributor license agreements. See the NOTICE file<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * distributed with this work for additional information<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * regarding copyright ownership. The ASF licenses this file<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> * to you under the Apache License, Version 2.0 (the<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * "License"); you may not use this file except in compliance<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> * with the License. You may obtain a copy of the License at<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> *<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * Unless required by applicable law or agreed to in writing,<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * software distributed under the License is distributed on an<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.16"></a> |
| <span class="sourceLineNo">017</span> * KIND, either express or implied. See the License for the<a name="line.17"></a> |
| <span class="sourceLineNo">018</span> * specific language governing permissions and limitations<a name="line.18"></a> |
| <span class="sourceLineNo">019</span> * under the License.<a name="line.19"></a> |
| <span class="sourceLineNo">020</span> */<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span><a name="line.22"></a> |
| <span class="sourceLineNo">023</span>/**<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> *<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * The repository feature holds information about specific features. The may not be available by all repository implementations.<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * Features should be simple objects for storing additional data, the should not implement too much functionality.<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> * Additional functionality the uses the information in the feature objects should be implemented in the specific repository<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * provider and repository implementations, or in the repository registry if it is generic.<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> *<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * But features may throw events, if it's data is changed.<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> *<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> *<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> * This interface is to get access to a concrete feature by accessing the generic interface.<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> *<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * @param <T> the concrete feature implementation.<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> *<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> * @author Martin Stockhammer <martin_s@apache.org><a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * @since 3.0<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> */<a name="line.39"></a> |
| <span class="sourceLineNo">040</span>public interface RepositoryFeature<T extends RepositoryFeature<T>> {<a name="line.40"></a> |
| <span class="sourceLineNo">041</span><a name="line.41"></a> |
| <span class="sourceLineNo">042</span> /**<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * Unique Identifier of this feature. Each feature implementation has its own unique identifier.<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> *<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * @return the identifier string which should be unique for the implementation class.<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> */<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> default String getId() {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> return this.getClass().getName();<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> }<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> /**<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * Tells, if this instance is a feature of the given identifier.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> *<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * @param featureId the feature identifier string to check<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * @return true, if this instance is a instance with the feature id, otherwise <code>false</code><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> */<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> default boolean isFeature(String featureId) {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> return this.getClass().getName().equals(featureId);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> }<a name="line.59"></a> |
| <span class="sourceLineNo">060</span><a name="line.60"></a> |
| <span class="sourceLineNo">061</span> /**<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * Tells, if the this instance is a feature of the given feature class.<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> *<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * @param clazz The class to check against.<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> * @param <K> the concrete feature implementation.<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> * @return<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> */<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> default <K extends RepositoryFeature<K>> boolean isFeature(Class<K> clazz) {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> return this.getClass().equals(clazz);<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> }<a name="line.70"></a> |
| <span class="sourceLineNo">071</span><a name="line.71"></a> |
| <span class="sourceLineNo">072</span> /**<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * Returns the concrete feature instance.<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * @return the feature instance.<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> */<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> T get();<a name="line.76"></a> |
| <span class="sourceLineNo">077</span>}<a name="line.77"></a> |
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