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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<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a>
<span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a>
<span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a>
<span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a>
<span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a>
<span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a>
<span class="sourceLineNo">018</span> *<a name="line.18"></a>
<span class="sourceLineNo">019</span> */<a name="line.19"></a>
<span class="sourceLineNo">020</span>package org.apache.mina.integration.beans;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.beans.PropertyEditor;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.ArrayList;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import java.util.Collection;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import java.util.regex.Matcher;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import java.util.regex.Pattern;<a name="line.26"></a>
<span class="sourceLineNo">027</span><a name="line.27"></a>
<span class="sourceLineNo">028</span>/**<a name="line.28"></a>
<span class="sourceLineNo">029</span> * A {@link PropertyEditor} which converts a {@link String} into<a name="line.29"></a>
<span class="sourceLineNo">030</span> * a {@link Collection} and vice versa.<a name="line.30"></a>
<span class="sourceLineNo">031</span> *<a name="line.31"></a>
<span class="sourceLineNo">032</span> * @author &lt;a href="http://mina.apache.org"&gt;Apache MINA Project&lt;/a&gt;<a name="line.32"></a>
<span class="sourceLineNo">033</span> */<a name="line.33"></a>
<span class="sourceLineNo">034</span>public class CollectionEditor extends AbstractPropertyEditor {<a name="line.34"></a>
<span class="sourceLineNo">035</span> static final Pattern ELEMENT = Pattern.compile("([,\\s]+)|"<a name="line.35"></a>
<span class="sourceLineNo">036</span> + // Delimiter<a name="line.36"></a>
<span class="sourceLineNo">037</span> "(?&lt;=\")((?:\\\\\"|\\\\'|\\\\\\\\|\\\\ |[^\"])*)(?=\")|"<a name="line.37"></a>
<span class="sourceLineNo">038</span> + "(?&lt;=')((?:\\\\\"|\\\\'|\\\\\\\\|\\\\ |[^'])*)(?=')|" + "((?:[^\\\\\\s'\",]|\\\\ |\\\\\"|\\\\')+)");<a name="line.38"></a>
<span class="sourceLineNo">039</span><a name="line.39"></a>
<span class="sourceLineNo">040</span> private final Class&lt;?&gt; elementType;<a name="line.40"></a>
<span class="sourceLineNo">041</span><a name="line.41"></a>
<span class="sourceLineNo">042</span> public CollectionEditor(Class&lt;?&gt; elementType) {<a name="line.42"></a>
<span class="sourceLineNo">043</span> if (elementType == null) {<a name="line.43"></a>
<span class="sourceLineNo">044</span> throw new IllegalArgumentException("elementType");<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> this.elementType = elementType;<a name="line.47"></a>
<span class="sourceLineNo">048</span> getElementEditor();<a name="line.48"></a>
<span class="sourceLineNo">049</span> setTrimText(false);<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> private PropertyEditor getElementEditor() {<a name="line.52"></a>
<span class="sourceLineNo">053</span> PropertyEditor e = PropertyEditorFactory.getInstance(elementType);<a name="line.53"></a>
<span class="sourceLineNo">054</span> if (e == null) {<a name="line.54"></a>
<span class="sourceLineNo">055</span> throw new IllegalArgumentException("No " + PropertyEditor.class.getSimpleName() + " found for "<a name="line.55"></a>
<span class="sourceLineNo">056</span> + elementType.getSimpleName() + '.');<a name="line.56"></a>
<span class="sourceLineNo">057</span> }<a name="line.57"></a>
<span class="sourceLineNo">058</span> return e;<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> @Override<a name="line.61"></a>
<span class="sourceLineNo">062</span> protected final String toText(Object value) {<a name="line.62"></a>
<span class="sourceLineNo">063</span> StringBuilder buf = new StringBuilder();<a name="line.63"></a>
<span class="sourceLineNo">064</span> for (Object v : (Collection&lt;?&gt;) value) {<a name="line.64"></a>
<span class="sourceLineNo">065</span> if (v == null) {<a name="line.65"></a>
<span class="sourceLineNo">066</span> v = defaultElement();<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> PropertyEditor e = PropertyEditorFactory.getInstance(v);<a name="line.69"></a>
<span class="sourceLineNo">070</span> if (e == null) {<a name="line.70"></a>
<span class="sourceLineNo">071</span> throw new IllegalArgumentException("No " + PropertyEditor.class.getSimpleName() + " found for "<a name="line.71"></a>
<span class="sourceLineNo">072</span> + v.getClass().getSimpleName() + '.');<a name="line.72"></a>
<span class="sourceLineNo">073</span> }<a name="line.73"></a>
<span class="sourceLineNo">074</span> e.setValue(v);<a name="line.74"></a>
<span class="sourceLineNo">075</span> // TODO normalize.<a name="line.75"></a>
<span class="sourceLineNo">076</span> String s = e.getAsText();<a name="line.76"></a>
<span class="sourceLineNo">077</span> buf.append(s);<a name="line.77"></a>
<span class="sourceLineNo">078</span> buf.append(", ");<a name="line.78"></a>
<span class="sourceLineNo">079</span> }<a name="line.79"></a>
<span class="sourceLineNo">080</span><a name="line.80"></a>
<span class="sourceLineNo">081</span> // Remove the last delimiter.<a name="line.81"></a>
<span class="sourceLineNo">082</span> if (buf.length() &gt;= 2) {<a name="line.82"></a>
<span class="sourceLineNo">083</span> buf.setLength(buf.length() - 2);<a name="line.83"></a>
<span class="sourceLineNo">084</span> }<a name="line.84"></a>
<span class="sourceLineNo">085</span> return buf.toString();<a name="line.85"></a>
<span class="sourceLineNo">086</span> }<a name="line.86"></a>
<span class="sourceLineNo">087</span><a name="line.87"></a>
<span class="sourceLineNo">088</span> @Override<a name="line.88"></a>
<span class="sourceLineNo">089</span> protected final Object toValue(String text) throws IllegalArgumentException {<a name="line.89"></a>
<span class="sourceLineNo">090</span> PropertyEditor e = getElementEditor();<a name="line.90"></a>
<span class="sourceLineNo">091</span> Collection&lt;Object&gt; answer = newCollection();<a name="line.91"></a>
<span class="sourceLineNo">092</span> Matcher m = ELEMENT.matcher(text);<a name="line.92"></a>
<span class="sourceLineNo">093</span> boolean matchedDelimiter = true;<a name="line.93"></a>
<span class="sourceLineNo">094</span><a name="line.94"></a>
<span class="sourceLineNo">095</span> while (m.find()) {<a name="line.95"></a>
<span class="sourceLineNo">096</span> if (m.group(1) != null) {<a name="line.96"></a>
<span class="sourceLineNo">097</span> matchedDelimiter = true;<a name="line.97"></a>
<span class="sourceLineNo">098</span> continue;<a name="line.98"></a>
<span class="sourceLineNo">099</span> }<a name="line.99"></a>
<span class="sourceLineNo">100</span><a name="line.100"></a>
<span class="sourceLineNo">101</span> if (!matchedDelimiter) {<a name="line.101"></a>
<span class="sourceLineNo">102</span> throw new IllegalArgumentException("No delimiter between elements: " + text);<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> // TODO escape here.<a name="line.105"></a>
<span class="sourceLineNo">106</span> e.setAsText(m.group());<a name="line.106"></a>
<span class="sourceLineNo">107</span> answer.add(e.getValue());<a name="line.107"></a>
<span class="sourceLineNo">108</span><a name="line.108"></a>
<span class="sourceLineNo">109</span> matchedDelimiter = false;<a name="line.109"></a>
<span class="sourceLineNo">110</span> if (m.group(2) != null || m.group(3) != null) {<a name="line.110"></a>
<span class="sourceLineNo">111</span> // Skip the last '"'.<a name="line.111"></a>
<span class="sourceLineNo">112</span> m.region(m.end() + 1, m.regionEnd());<a name="line.112"></a>
<span class="sourceLineNo">113</span> }<a name="line.113"></a>
<span class="sourceLineNo">114</span> }<a name="line.114"></a>
<span class="sourceLineNo">115</span><a name="line.115"></a>
<span class="sourceLineNo">116</span> return answer;<a name="line.116"></a>
<span class="sourceLineNo">117</span> }<a name="line.117"></a>
<span class="sourceLineNo">118</span><a name="line.118"></a>
<span class="sourceLineNo">119</span> protected Collection&lt;Object&gt; newCollection() {<a name="line.119"></a>
<span class="sourceLineNo">120</span> return new ArrayList&lt;Object&gt;();<a name="line.120"></a>
<span class="sourceLineNo">121</span> }<a name="line.121"></a>
<span class="sourceLineNo">122</span><a name="line.122"></a>
<span class="sourceLineNo">123</span> protected Object defaultElement() {<a name="line.123"></a>
<span class="sourceLineNo">124</span> PropertyEditor e = PropertyEditorFactory.getInstance(elementType);<a name="line.124"></a>
<span class="sourceLineNo">125</span> if (e == null) {<a name="line.125"></a>
<span class="sourceLineNo">126</span> return null;<a name="line.126"></a>
<span class="sourceLineNo">127</span> }<a name="line.127"></a>
<span class="sourceLineNo">128</span><a name="line.128"></a>
<span class="sourceLineNo">129</span> if (e instanceof AbstractPropertyEditor) {<a name="line.129"></a>
<span class="sourceLineNo">130</span> return ((AbstractPropertyEditor) e).defaultValue();<a name="line.130"></a>
<span class="sourceLineNo">131</span> }<a name="line.131"></a>
<span class="sourceLineNo">132</span><a name="line.132"></a>
<span class="sourceLineNo">133</span> return null;<a name="line.133"></a>
<span class="sourceLineNo">134</span> }<a name="line.134"></a>
<span class="sourceLineNo">135</span>}<a name="line.135"></a>
</pre>
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