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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.http;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.text.DateFormat;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.text.ParseException;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.text.SimpleDateFormat;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Calendar;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Date;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Locale;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import java.util.TimeZone;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import java.util.regex.Pattern;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span><a name="line.30"></a> |
| <span class="sourceLineNo">031</span>public class DateUtil {<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span> private final static Locale LOCALE = Locale.US;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> private final static TimeZone GMT_ZONE;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> private final static String RFC_1123_PATTERN = "EEE, dd MMM yyyy HH:mm:ss zzz";<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> private final static DateFormat RFC_1123_FORMAT;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span><a name="line.37"></a> |
| <span class="sourceLineNo">038</span> /** Pattern to find digits only. */<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> private final static Pattern DIGIT_PATTERN = Pattern.compile("^\\d+$");<a name="line.39"></a> |
| <span class="sourceLineNo">040</span><a name="line.40"></a> |
| <span class="sourceLineNo">041</span> static {<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> RFC_1123_FORMAT = new SimpleDateFormat(DateUtil.RFC_1123_PATTERN, DateUtil.LOCALE);<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> GMT_ZONE = TimeZone.getTimeZone("GMT");<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> DateUtil.RFC_1123_FORMAT.setTimeZone(DateUtil.GMT_ZONE);<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> public static String getCurrentAsString() {<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> synchronized(DateUtil.RFC_1123_FORMAT) {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> return DateUtil.RFC_1123_FORMAT.format(new Date()); //NOPMD<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><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> /**<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> * Translate a given date <code>String</code> in the <em>RFC 1123</em><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> * format to a <code>long</code> representing the number of milliseconds<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> * since epoch.<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> * <a name="line.57"></a> |
| <span class="sourceLineNo">058</span> * @param dateString a date <code>String</code> in the <em>RFC 1123</em><a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * format.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * @return the parsed <code>Date</code> in milliseconds.<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> */<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> private static long parseDateStringToMilliseconds(final String dateString) {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span><a name="line.63"></a> |
| <span class="sourceLineNo">064</span> try {<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> synchronized (DateUtil.RFC_1123_FORMAT) {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> return DateUtil.RFC_1123_FORMAT.parse(dateString).getTime(); //NOPMD<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> }<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> } catch (final ParseException e) {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> return 0;<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> /**<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> * Parse a given date <code>String</code> to a <code>long</code><a name="line.74"></a> |
| <span class="sourceLineNo">075</span> * representation of the time. Where the provided value is all digits the<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> * value is returned as a <code>long</code>, otherwise attempt is made to<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> * parse the <code>String</code> as a <em>RFC 1123</em> date.<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> * <a name="line.78"></a> |
| <span class="sourceLineNo">079</span> * @param dateValue the value to parse.<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * @return the <code>long</code> value following parse, or zero where not<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> * successful.<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> */<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> public static long parseToMilliseconds(final String dateValue) {<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> long ms = 0;<a name="line.85"></a> |
| <span class="sourceLineNo">086</span><a name="line.86"></a> |
| <span class="sourceLineNo">087</span> if (DateUtil.DIGIT_PATTERN.matcher(dateValue).matches()) {<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> ms = Long.parseLong(dateValue);<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> } else {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> ms = parseDateStringToMilliseconds(dateValue);<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> }<a name="line.91"></a> |
| <span class="sourceLineNo">092</span><a name="line.92"></a> |
| <span class="sourceLineNo">093</span> return ms;<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> /**<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> * Converts a millisecond representation of a date to a<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> * <code>RFC 1123</code> formatted <code>String</code>.<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> * <a name="line.99"></a> |
| <span class="sourceLineNo">100</span> * @param dateValue the <code>Date</code> represented as milliseconds.<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> * @return a <code>String</code> representation of the date.<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> */<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> public static String parseToRFC1123(final long dateValue) {<a name="line.103"></a> |
| <span class="sourceLineNo">104</span><a name="line.104"></a> |
| <span class="sourceLineNo">105</span> final Calendar calendar = Calendar.getInstance();<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> calendar.setTimeInMillis(dateValue);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> synchronized (DateUtil.RFC_1123_FORMAT) {<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> return DateUtil.RFC_1123_FORMAT.format(calendar.getTime()); //NOPMD<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> }<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> }<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> |
| <span class="sourceLineNo">114</span> * Convert a given <code>Date</code> object to a <code>RFC 1123</code><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> * formatted <code>String</code>.<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> * <a name="line.116"></a> |
| <span class="sourceLineNo">117</span> * @param date the <code>Date</code> object to convert<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> * @return a <code>String</code> representation of the date.<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> */<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> public static String getDateAsString(Date date) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> synchronized (DateUtil.RFC_1123_FORMAT) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> return RFC_1123_FORMAT.format(date); //NOPMD<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> }<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span>}<a name="line.126"></a> |
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| </pre> |
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