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| <FONT color="green">001</FONT> /*<a name="line.1"></a> |
| <FONT color="green">002</FONT> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a> |
| <FONT color="green">003</FONT> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a> |
| <FONT color="green">004</FONT> * distributed with this work for additional information<a name="line.4"></a> |
| <FONT color="green">005</FONT> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a> |
| <FONT color="green">006</FONT> * to you under the Apache License, Version 2.0 (the "License");<a name="line.6"></a> |
| <FONT color="green">007</FONT> * you may not use this file except in compliance with the License.<a name="line.7"></a> |
| <FONT color="green">008</FONT> * You may obtain a copy of the License at<a name="line.8"></a> |
| <FONT color="green">009</FONT> *<a name="line.9"></a> |
| <FONT color="green">010</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a> |
| <FONT color="green">011</FONT> *<a name="line.11"></a> |
| <FONT color="green">012</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.12"></a> |
| <FONT color="green">013</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.13"></a> |
| <FONT color="green">014</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.14"></a> |
| <FONT color="green">015</FONT> * See the License for the specific language governing permissions and<a name="line.15"></a> |
| <FONT color="green">016</FONT> * limitations under the License.<a name="line.16"></a> |
| <FONT color="green">017</FONT> */<a name="line.17"></a> |
| <FONT color="green">018</FONT> /*<a name="line.18"></a> |
| <FONT color="green">019</FONT> * $Id: DTMSafeStringPool.java 468653 2006-10-28 07:07:05Z minchau $<a name="line.19"></a> |
| <FONT color="green">020</FONT> */<a name="line.20"></a> |
| <FONT color="green">021</FONT> <a name="line.21"></a> |
| <FONT color="green">022</FONT> package org.apache.xml.dtm.ref;<a name="line.22"></a> |
| <FONT color="green">023</FONT> <a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> /** <p>Like DTMStringPool, but threadsafe. It's been proposed that DTMs<a name="line.25"></a> |
| <FONT color="green">026</FONT> * share their string pool(s); that raises threadsafety issues which<a name="line.26"></a> |
| <FONT color="green">027</FONT> * this addresses. Of course performance is inferior to that of the<a name="line.27"></a> |
| <FONT color="green">028</FONT> * bare-bones version.</p><a name="line.28"></a> |
| <FONT color="green">029</FONT> *<a name="line.29"></a> |
| <FONT color="green">030</FONT> * <p>Status: Passed basic test in main().</p><a name="line.30"></a> |
| <FONT color="green">031</FONT> * */<a name="line.31"></a> |
| <FONT color="green">032</FONT> public class DTMSafeStringPool<a name="line.32"></a> |
| <FONT color="green">033</FONT> extends DTMStringPool<a name="line.33"></a> |
| <FONT color="green">034</FONT> {<a name="line.34"></a> |
| <FONT color="green">035</FONT> public synchronized void removeAllElements()<a name="line.35"></a> |
| <FONT color="green">036</FONT> {<a name="line.36"></a> |
| <FONT color="green">037</FONT> super.removeAllElements();<a name="line.37"></a> |
| <FONT color="green">038</FONT> }<a name="line.38"></a> |
| <FONT color="green">039</FONT> <a name="line.39"></a> |
| <FONT color="green">040</FONT> /** @return string whose value is uniquely identified by this integer index.<a name="line.40"></a> |
| <FONT color="green">041</FONT> * @throws java.lang.ArrayIndexOutOfBoundsException<a name="line.41"></a> |
| <FONT color="green">042</FONT> * if index doesn't map to a string.<a name="line.42"></a> |
| <FONT color="green">043</FONT> * */ <a name="line.43"></a> |
| <FONT color="green">044</FONT> public synchronized String indexToString(int i)<a name="line.44"></a> |
| <FONT color="green">045</FONT> throws java.lang.ArrayIndexOutOfBoundsException<a name="line.45"></a> |
| <FONT color="green">046</FONT> {<a name="line.46"></a> |
| <FONT color="green">047</FONT> return super.indexToString(i);<a name="line.47"></a> |
| <FONT color="green">048</FONT> }<a name="line.48"></a> |
| <FONT color="green">049</FONT> <a name="line.49"></a> |
| <FONT color="green">050</FONT> /** @return integer index uniquely identifying the value of this string. */ <a name="line.50"></a> |
| <FONT color="green">051</FONT> public synchronized int stringToIndex(String s)<a name="line.51"></a> |
| <FONT color="green">052</FONT> {<a name="line.52"></a> |
| <FONT color="green">053</FONT> return super.stringToIndex(s);<a name="line.53"></a> |
| <FONT color="green">054</FONT> }<a name="line.54"></a> |
| <FONT color="green">055</FONT> <a name="line.55"></a> |
| <FONT color="green">056</FONT> /** Command-line unit test driver. This test relies on the fact that<a name="line.56"></a> |
| <FONT color="green">057</FONT> * this version of the pool assigns indices consecutively, starting<a name="line.57"></a> |
| <FONT color="green">058</FONT> * from zero, as new unique strings are encountered.<a name="line.58"></a> |
| <FONT color="green">059</FONT> */<a name="line.59"></a> |
| <FONT color="green">060</FONT> public static void main(String[] args)<a name="line.60"></a> |
| <FONT color="green">061</FONT> {<a name="line.61"></a> |
| <FONT color="green">062</FONT> String[] word={<a name="line.62"></a> |
| <FONT color="green">063</FONT> "Zero","One","Two","Three","Four","Five",<a name="line.63"></a> |
| <FONT color="green">064</FONT> "Six","Seven","Eight","Nine","Ten",<a name="line.64"></a> |
| <FONT color="green">065</FONT> "Eleven","Twelve","Thirteen","Fourteen","Fifteen",<a name="line.65"></a> |
| <FONT color="green">066</FONT> "Sixteen","Seventeen","Eighteen","Nineteen","Twenty",<a name="line.66"></a> |
| <FONT color="green">067</FONT> "Twenty-One","Twenty-Two","Twenty-Three","Twenty-Four",<a name="line.67"></a> |
| <FONT color="green">068</FONT> "Twenty-Five","Twenty-Six","Twenty-Seven","Twenty-Eight",<a name="line.68"></a> |
| <FONT color="green">069</FONT> "Twenty-Nine","Thirty","Thirty-One","Thirty-Two",<a name="line.69"></a> |
| <FONT color="green">070</FONT> "Thirty-Three","Thirty-Four","Thirty-Five","Thirty-Six",<a name="line.70"></a> |
| <FONT color="green">071</FONT> "Thirty-Seven","Thirty-Eight","Thirty-Nine"};<a name="line.71"></a> |
| <FONT color="green">072</FONT> <a name="line.72"></a> |
| <FONT color="green">073</FONT> DTMStringPool pool=new DTMSafeStringPool();<a name="line.73"></a> |
| <FONT color="green">074</FONT> <a name="line.74"></a> |
| <FONT color="green">075</FONT> System.out.println("If no complaints are printed below, we passed initial test.");<a name="line.75"></a> |
| <FONT color="green">076</FONT> <a name="line.76"></a> |
| <FONT color="green">077</FONT> for(int pass=0;pass<=1;++pass)<a name="line.77"></a> |
| <FONT color="green">078</FONT> {<a name="line.78"></a> |
| <FONT color="green">079</FONT> int i;<a name="line.79"></a> |
| <FONT color="green">080</FONT> <a name="line.80"></a> |
| <FONT color="green">081</FONT> for(i=0;i<word.length;++i)<a name="line.81"></a> |
| <FONT color="green">082</FONT> {<a name="line.82"></a> |
| <FONT color="green">083</FONT> int j=pool.stringToIndex(word[i]);<a name="line.83"></a> |
| <FONT color="green">084</FONT> if(j!=i)<a name="line.84"></a> |
| <FONT color="green">085</FONT> System.out.println("\tMismatch populating pool: assigned "+<a name="line.85"></a> |
| <FONT color="green">086</FONT> j+" for create "+i);<a name="line.86"></a> |
| <FONT color="green">087</FONT> }<a name="line.87"></a> |
| <FONT color="green">088</FONT> <a name="line.88"></a> |
| <FONT color="green">089</FONT> for(i=0;i<word.length;++i)<a name="line.89"></a> |
| <FONT color="green">090</FONT> {<a name="line.90"></a> |
| <FONT color="green">091</FONT> int j=pool.stringToIndex(word[i]);<a name="line.91"></a> |
| <FONT color="green">092</FONT> if(j!=i)<a name="line.92"></a> |
| <FONT color="green">093</FONT> System.out.println("\tMismatch in stringToIndex: returned "+<a name="line.93"></a> |
| <FONT color="green">094</FONT> j+" for lookup "+i);<a name="line.94"></a> |
| <FONT color="green">095</FONT> }<a name="line.95"></a> |
| <FONT color="green">096</FONT> <a name="line.96"></a> |
| <FONT color="green">097</FONT> for(i=0;i<word.length;++i)<a name="line.97"></a> |
| <FONT color="green">098</FONT> {<a name="line.98"></a> |
| <FONT color="green">099</FONT> String w=pool.indexToString(i);<a name="line.99"></a> |
| <FONT color="green">100</FONT> if(!word[i].equals(w))<a name="line.100"></a> |
| <FONT color="green">101</FONT> System.out.println("\tMismatch in indexToString: returned"+<a name="line.101"></a> |
| <FONT color="green">102</FONT> w+" for lookup "+i);<a name="line.102"></a> |
| <FONT color="green">103</FONT> }<a name="line.103"></a> |
| <FONT color="green">104</FONT> <a name="line.104"></a> |
| <FONT color="green">105</FONT> pool.removeAllElements();<a name="line.105"></a> |
| <FONT color="green">106</FONT> <a name="line.106"></a> |
| <FONT color="green">107</FONT> System.out.println("\nPass "+pass+" complete\n");<a name="line.107"></a> |
| <FONT color="green">108</FONT> } // end pass loop<a name="line.108"></a> |
| <FONT color="green">109</FONT> }<a name="line.109"></a> |
| <FONT color="green">110</FONT> } // DTMSafeStringPool<a name="line.110"></a> |
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| </PRE> |
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