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| <pre><span class="sourceLineNo">001</span>// ***************************************************************************************************************************<a name="line.1"></a> |
| <span class="sourceLineNo">002</span>// * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file *<a name="line.2"></a> |
| <span class="sourceLineNo">003</span>// * distributed with this work for additional information regarding copyright ownership. The ASF licenses this file *<a name="line.3"></a> |
| <span class="sourceLineNo">004</span>// * to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance *<a name="line.4"></a> |
| <span class="sourceLineNo">005</span>// * with the License. You may obtain a copy of the License at *<a name="line.5"></a> |
| <span class="sourceLineNo">006</span>// * *<a name="line.6"></a> |
| <span class="sourceLineNo">007</span>// * http://www.apache.org/licenses/LICENSE-2.0 *<a name="line.7"></a> |
| <span class="sourceLineNo">008</span>// * *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span>// * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an *<a name="line.9"></a> |
| <span class="sourceLineNo">010</span>// * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span>// * specific language governing permissions and limitations under the License. *<a name="line.11"></a> |
| <span class="sourceLineNo">012</span>// ***************************************************************************************************************************<a name="line.12"></a> |
| <span class="sourceLineNo">013</span>package org.apache.juneau.cp;<a name="line.13"></a> |
| <span class="sourceLineNo">014</span><a name="line.14"></a> |
| <span class="sourceLineNo">015</span>import static org.apache.juneau.internal.ArgUtils.*;<a name="line.15"></a> |
| <span class="sourceLineNo">016</span>import static org.apache.juneau.internal.CollectionUtils.*;<a name="line.16"></a> |
| <span class="sourceLineNo">017</span><a name="line.17"></a> |
| <span class="sourceLineNo">018</span>import java.util.*;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>/**<a name="line.20"></a> |
| <span class="sourceLineNo">021</span> * A list of default implementation classes.<a name="line.21"></a> |
| <span class="sourceLineNo">022</span> *<a name="line.22"></a> |
| <span class="sourceLineNo">023</span> * <ul class='notes'><a name="line.23"></a> |
| <span class="sourceLineNo">024</span> * <li class='warn'>This class is not thread safe.<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * </ul><a name="line.25"></a> |
| <span class="sourceLineNo">026</span> *<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> * <ul class='seealso'><a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * <li class='extlink'>{@source}<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * </ul><a name="line.29"></a> |
| <span class="sourceLineNo">030</span> */<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>public class DefaultClassList {<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span> //-----------------------------------------------------------------------------------------------------------------<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> // Static<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> //-----------------------------------------------------------------------------------------------------------------<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span> /**<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Static creator.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> *<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * @return A new object.<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> */<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> public static DefaultClassList create() {<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> return new DefaultClassList();<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> }<a name="line.44"></a> |
| <span class="sourceLineNo">045</span><a name="line.45"></a> |
| <span class="sourceLineNo">046</span> /**<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> * Static creator.<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> *<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> * @param values Initial entries in this list.<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> * @return A new object initialized with the specified values.<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> */<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> public static DefaultClassList of(Class<?>...values) {<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> return new DefaultClassList().add(values);<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> }<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> //-----------------------------------------------------------------------------------------------------------------<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> // Instance<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> //-----------------------------------------------------------------------------------------------------------------<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> private final List<Class<?>> entries;<a name="line.60"></a> |
| <span class="sourceLineNo">061</span><a name="line.61"></a> |
| <span class="sourceLineNo">062</span> /**<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> * Constructor.<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> */<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> protected DefaultClassList() {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> entries = list();<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> }<a name="line.67"></a> |
| <span class="sourceLineNo">068</span><a name="line.68"></a> |
| <span class="sourceLineNo">069</span> /**<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> * Copy constructor<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> *<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * @param value The object to copy.<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> */<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public DefaultClassList(DefaultClassList value) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> entries = copyOf(value.entries);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<a name="line.76"></a> |
| <span class="sourceLineNo">077</span><a name="line.77"></a> |
| <span class="sourceLineNo">078</span> /**<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * Prepends the specified values to the beginning of this list.<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> *<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * @param values The values to prepend to this list.<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * @return This object.<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> */<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> public DefaultClassList add(Class<?>...values) {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> prependAll(entries, values);<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> return this;<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> /**<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * Returns the first class in this list which is a subclass of (or same as) the specified type.<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> *<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * @param <T> The parent type.<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * @param type The parent type to check for.<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * @return The first class in this list which is a subclass of the specified type.<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> */<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> @SuppressWarnings("unchecked")<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> public <T> Optional<Class<? extends T>> get(Class<T> type) {<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> assertArgNotNull("type", type);<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> for (Class<?> e : entries)<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> if (e != null && type.isAssignableFrom(e))<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> return optional((Class<? extends T>)e);<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> return empty();<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> }<a name="line.103"></a> |
| <span class="sourceLineNo">104</span><a name="line.104"></a> |
| <span class="sourceLineNo">105</span> /**<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> * Creates a copy of this list.<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> *<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * @return A copy of this list.<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> */<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> public DefaultClassList copy() {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> return new DefaultClassList(this);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span>}<a name="line.113"></a> |
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| </pre> |
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