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<pre><span class="sourceLineNo">001</span><a name="line.17"></a>
<span class="sourceLineNo">018</span>package org.apache.hadoop.lib.wsrs;<a name="line.18"></a>
<span class="sourceLineNo">019</span><a name="line.19"></a>
<span class="sourceLineNo">020</span>import java.util.Arrays;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.util.EnumSet;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.Iterator;<a name="line.22"></a>
<span class="sourceLineNo">023</span><a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.apache.hadoop.classification.InterfaceAudience;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>@InterfaceAudience.Private<a name="line.26"></a>
<span class="sourceLineNo">027</span>public abstract class EnumSetParam&lt;E extends Enum&lt;E&gt;&gt; extends Param&lt;EnumSet&lt;E&gt;&gt; {<a name="line.27"></a>
<span class="sourceLineNo">028</span>  Class&lt;E&gt; klass;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>  public EnumSetParam(String name, Class&lt;E&gt; e, EnumSet&lt;E&gt; defaultValue) {<a name="line.30"></a>
<span class="sourceLineNo">031</span>    super(name, defaultValue);<a name="line.31"></a>
<span class="sourceLineNo">032</span>    klass = e;<a name="line.32"></a>
<span class="sourceLineNo">033</span>  }<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>  @Override<a name="line.35"></a>
<span class="sourceLineNo">036</span>  protected EnumSet&lt;E&gt; parse(String str) throws Exception {<a name="line.36"></a>
<span class="sourceLineNo">037</span>    final EnumSet&lt;E&gt; set = EnumSet.noneOf(klass);<a name="line.37"></a>
<span class="sourceLineNo">038</span>    if (!str.isEmpty()) {<a name="line.38"></a>
<span class="sourceLineNo">039</span>      for (String sub : str.split(",")) {<a name="line.39"></a>
<span class="sourceLineNo">040</span>        set.add(Enum.valueOf(klass, sub.trim().toUpperCase()));<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>    return set;<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>  @Override<a name="line.46"></a>
<span class="sourceLineNo">047</span>  protected String getDomain() {<a name="line.47"></a>
<span class="sourceLineNo">048</span>    return Arrays.asList(klass.getEnumConstants()).toString();<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>  /** Convert an EnumSet to a string of comma separated values. */<a name="line.51"></a>
<span class="sourceLineNo">052</span>  public static &lt;E extends Enum&lt;E&gt;&gt; String toString(EnumSet&lt;E&gt; set) {<a name="line.52"></a>
<span class="sourceLineNo">053</span>    if (set == null || set.isEmpty()) {<a name="line.53"></a>
<span class="sourceLineNo">054</span>      return "";<a name="line.54"></a>
<span class="sourceLineNo">055</span>    } else {<a name="line.55"></a>
<span class="sourceLineNo">056</span>      final StringBuilder b = new StringBuilder();<a name="line.56"></a>
<span class="sourceLineNo">057</span>      final Iterator&lt;E&gt; i = set.iterator();<a name="line.57"></a>
<span class="sourceLineNo">058</span>      b.append(i.next());<a name="line.58"></a>
<span class="sourceLineNo">059</span>      while (i.hasNext()) {<a name="line.59"></a>
<span class="sourceLineNo">060</span>        b.append(',').append(i.next());<a name="line.60"></a>
<span class="sourceLineNo">061</span>      }<a name="line.61"></a>
<span class="sourceLineNo">062</span>      return b.toString();<a name="line.62"></a>
<span class="sourceLineNo">063</span>    }<a name="line.63"></a>
<span class="sourceLineNo">064</span>  }<a name="line.64"></a>
<span class="sourceLineNo">065</span><a name="line.65"></a>
<span class="sourceLineNo">066</span>  @Override<a name="line.66"></a>
<span class="sourceLineNo">067</span>  public String toString() {<a name="line.67"></a>
<span class="sourceLineNo">068</span>    return getName() + "=" + toString(value);<a name="line.68"></a>
<span class="sourceLineNo">069</span>  }<a name="line.69"></a>
<span class="sourceLineNo">070</span>}<a name="line.70"></a>




























































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