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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<a name="line.6"></a> |
| <FONT color="green">007</FONT> * "License"); you may not use this file except in compliance<a name="line.7"></a> |
| <FONT color="green">008</FONT> * with the License. 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,<a name="line.12"></a> |
| <FONT color="green">013</FONT> * software distributed under the License is distributed on an<a name="line.13"></a> |
| <FONT color="green">014</FONT> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a> |
| <FONT color="green">015</FONT> * KIND, either express or implied. See the License for the<a name="line.15"></a> |
| <FONT color="green">016</FONT> * specific language governing permissions and limitations<a name="line.16"></a> |
| <FONT color="green">017</FONT> * under the License.<a name="line.17"></a> |
| <FONT color="green">018</FONT> */<a name="line.18"></a> |
| <FONT color="green">019</FONT> package org.apache.shiro.util;<a name="line.19"></a> |
| <FONT color="green">020</FONT> <a name="line.20"></a> |
| <FONT color="green">021</FONT> import java.text.ParseException;<a name="line.21"></a> |
| <FONT color="green">022</FONT> import java.util.*;<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>Simple utility class for String operations useful across the framework.<a name="line.25"></a> |
| <FONT color="green">026</FONT> * <p/><a name="line.26"></a> |
| <FONT color="green">027</FONT> * <p>Some methods in this class were copied from the Spring Framework so we didn't have to re-invent the wheel,<a name="line.27"></a> |
| <FONT color="green">028</FONT> * and in these cases, we have retained all license, copyright and author information.<a name="line.28"></a> |
| <FONT color="green">029</FONT> *<a name="line.29"></a> |
| <FONT color="green">030</FONT> * @since 0.9<a name="line.30"></a> |
| <FONT color="green">031</FONT> */<a name="line.31"></a> |
| <FONT color="green">032</FONT> public class StringUtils {<a name="line.32"></a> |
| <FONT color="green">033</FONT> <a name="line.33"></a> |
| <FONT color="green">034</FONT> //TODO - complete JavaDoc<a name="line.34"></a> |
| <FONT color="green">035</FONT> <a name="line.35"></a> |
| <FONT color="green">036</FONT> /**<a name="line.36"></a> |
| <FONT color="green">037</FONT> * Constant representing the empty string, equal to &quot;&quot;<a name="line.37"></a> |
| <FONT color="green">038</FONT> */<a name="line.38"></a> |
| <FONT color="green">039</FONT> public static final String EMPTY_STRING = "";<a name="line.39"></a> |
| <FONT color="green">040</FONT> <a name="line.40"></a> |
| <FONT color="green">041</FONT> /**<a name="line.41"></a> |
| <FONT color="green">042</FONT> * Constant representing the default delimiter character (comma), equal to <code>','</code><a name="line.42"></a> |
| <FONT color="green">043</FONT> */<a name="line.43"></a> |
| <FONT color="green">044</FONT> public static final char DEFAULT_DELIMITER_CHAR = ',';<a name="line.44"></a> |
| <FONT color="green">045</FONT> <a name="line.45"></a> |
| <FONT color="green">046</FONT> /**<a name="line.46"></a> |
| <FONT color="green">047</FONT> * Constant representing the default quote character (double quote), equal to '&quot;'</code><a name="line.47"></a> |
| <FONT color="green">048</FONT> */<a name="line.48"></a> |
| <FONT color="green">049</FONT> public static final char DEFAULT_QUOTE_CHAR = '"';<a name="line.49"></a> |
| <FONT color="green">050</FONT> <a name="line.50"></a> |
| <FONT color="green">051</FONT> /**<a name="line.51"></a> |
| <FONT color="green">052</FONT> * Check whether the given String has actual text.<a name="line.52"></a> |
| <FONT color="green">053</FONT> * More specifically, returns <code>true</code> if the string not <code>null</code>,<a name="line.53"></a> |
| <FONT color="green">054</FONT> * its length is greater than 0, and it contains at least one non-whitespace character.<a name="line.54"></a> |
| <FONT color="green">055</FONT> * <p/><a name="line.55"></a> |
| <FONT color="green">056</FONT> * <code>StringUtils.hasText(null) == false<br/><a name="line.56"></a> |
| <FONT color="green">057</FONT> * StringUtils.hasText("") == false<br/><a name="line.57"></a> |
| <FONT color="green">058</FONT> * StringUtils.hasText(" ") == false<br/><a name="line.58"></a> |
| <FONT color="green">059</FONT> * StringUtils.hasText("12345") == true<br/><a name="line.59"></a> |
| <FONT color="green">060</FONT> * StringUtils.hasText(" 12345 ") == true</code><a name="line.60"></a> |
| <FONT color="green">061</FONT> * <p/><a name="line.61"></a> |
| <FONT color="green">062</FONT> * <p>Copied from the Spring Framework while retaining all license, copyright and author information.<a name="line.62"></a> |
| <FONT color="green">063</FONT> *<a name="line.63"></a> |
| <FONT color="green">064</FONT> * @param str the String to check (may be <code>null</code>)<a name="line.64"></a> |
| <FONT color="green">065</FONT> * @return <code>true</code> if the String is not <code>null</code>, its length is<a name="line.65"></a> |
| <FONT color="green">066</FONT> * greater than 0, and it does not contain whitespace only<a name="line.66"></a> |
| <FONT color="green">067</FONT> * @see java.lang.Character#isWhitespace<a name="line.67"></a> |
| <FONT color="green">068</FONT> */<a name="line.68"></a> |
| <FONT color="green">069</FONT> public static boolean hasText(String str) {<a name="line.69"></a> |
| <FONT color="green">070</FONT> if (!hasLength(str)) {<a name="line.70"></a> |
| <FONT color="green">071</FONT> return false;<a name="line.71"></a> |
| <FONT color="green">072</FONT> }<a name="line.72"></a> |
| <FONT color="green">073</FONT> int strLen = str.length();<a name="line.73"></a> |
| <FONT color="green">074</FONT> for (int i = 0; i < strLen; i++) {<a name="line.74"></a> |
| <FONT color="green">075</FONT> if (!Character.isWhitespace(str.charAt(i))) {<a name="line.75"></a> |
| <FONT color="green">076</FONT> return true;<a name="line.76"></a> |
| <FONT color="green">077</FONT> }<a name="line.77"></a> |
| <FONT color="green">078</FONT> }<a name="line.78"></a> |
| <FONT color="green">079</FONT> return false;<a name="line.79"></a> |
| <FONT color="green">080</FONT> }<a name="line.80"></a> |
| <FONT color="green">081</FONT> <a name="line.81"></a> |
| <FONT color="green">082</FONT> /**<a name="line.82"></a> |
| <FONT color="green">083</FONT> * Check that the given String is neither <code>null</code> nor of length 0.<a name="line.83"></a> |
| <FONT color="green">084</FONT> * Note: Will return <code>true</code> for a String that purely consists of whitespace.<a name="line.84"></a> |
| <FONT color="green">085</FONT> * <p/><a name="line.85"></a> |
| <FONT color="green">086</FONT> * <code>StringUtils.hasLength(null) == false<br/><a name="line.86"></a> |
| <FONT color="green">087</FONT> * StringUtils.hasLength("") == false<br/><a name="line.87"></a> |
| <FONT color="green">088</FONT> * StringUtils.hasLength(" ") == true<br/><a name="line.88"></a> |
| <FONT color="green">089</FONT> * StringUtils.hasLength("Hello") == true</code><a name="line.89"></a> |
| <FONT color="green">090</FONT> * <p/><a name="line.90"></a> |
| <FONT color="green">091</FONT> * Copied from the Spring Framework while retaining all license, copyright and author information.<a name="line.91"></a> |
| <FONT color="green">092</FONT> *<a name="line.92"></a> |
| <FONT color="green">093</FONT> * @param str the String to check (may be <code>null</code>)<a name="line.93"></a> |
| <FONT color="green">094</FONT> * @return <code>true</code> if the String is not null and has length<a name="line.94"></a> |
| <FONT color="green">095</FONT> * @see #hasText(String)<a name="line.95"></a> |
| <FONT color="green">096</FONT> */<a name="line.96"></a> |
| <FONT color="green">097</FONT> public static boolean hasLength(String str) {<a name="line.97"></a> |
| <FONT color="green">098</FONT> return (str != null && str.length() > 0);<a name="line.98"></a> |
| <FONT color="green">099</FONT> }<a name="line.99"></a> |
| <FONT color="green">100</FONT> <a name="line.100"></a> |
| <FONT color="green">101</FONT> <a name="line.101"></a> |
| <FONT color="green">102</FONT> /**<a name="line.102"></a> |
| <FONT color="green">103</FONT> * Test if the given String starts with the specified prefix,<a name="line.103"></a> |
| <FONT color="green">104</FONT> * ignoring upper/lower case.<a name="line.104"></a> |
| <FONT color="green">105</FONT> * <p/><a name="line.105"></a> |
| <FONT color="green">106</FONT> * <p>Copied from the Spring Framework while retaining all license, copyright and author information.<a name="line.106"></a> |
| <FONT color="green">107</FONT> *<a name="line.107"></a> |
| <FONT color="green">108</FONT> * @param str the String to check<a name="line.108"></a> |
| <FONT color="green">109</FONT> * @param prefix the prefix to look for<a name="line.109"></a> |
| <FONT color="green">110</FONT> * @return <code>true</code> starts with the specified prefix (ignoring case), <code>false</code> if it does not.<a name="line.110"></a> |
| <FONT color="green">111</FONT> * @see java.lang.String#startsWith<a name="line.111"></a> |
| <FONT color="green">112</FONT> */<a name="line.112"></a> |
| <FONT color="green">113</FONT> public static boolean startsWithIgnoreCase(String str, String prefix) {<a name="line.113"></a> |
| <FONT color="green">114</FONT> if (str == null || prefix == null) {<a name="line.114"></a> |
| <FONT color="green">115</FONT> return false;<a name="line.115"></a> |
| <FONT color="green">116</FONT> }<a name="line.116"></a> |
| <FONT color="green">117</FONT> if (str.startsWith(prefix)) {<a name="line.117"></a> |
| <FONT color="green">118</FONT> return true;<a name="line.118"></a> |
| <FONT color="green">119</FONT> }<a name="line.119"></a> |
| <FONT color="green">120</FONT> if (str.length() < prefix.length()) {<a name="line.120"></a> |
| <FONT color="green">121</FONT> return false;<a name="line.121"></a> |
| <FONT color="green">122</FONT> }<a name="line.122"></a> |
| <FONT color="green">123</FONT> String lcStr = str.substring(0, prefix.length()).toLowerCase();<a name="line.123"></a> |
| <FONT color="green">124</FONT> String lcPrefix = prefix.toLowerCase();<a name="line.124"></a> |
| <FONT color="green">125</FONT> return lcStr.equals(lcPrefix);<a name="line.125"></a> |
| <FONT color="green">126</FONT> }<a name="line.126"></a> |
| <FONT color="green">127</FONT> <a name="line.127"></a> |
| <FONT color="green">128</FONT> /**<a name="line.128"></a> |
| <FONT color="green">129</FONT> * Returns a 'cleaned' representation of the specified argument. 'Cleaned' is defined as the following:<a name="line.129"></a> |
| <FONT color="green">130</FONT> * <p/><a name="line.130"></a> |
| <FONT color="green">131</FONT> * <ol><a name="line.131"></a> |
| <FONT color="green">132</FONT> * <li>If the specified <code>String</code> is <code>null</code>, return <code>null</code></li><a name="line.132"></a> |
| <FONT color="green">133</FONT> * <li>If not <code>null</code>, {@link String#trim() trim()} it.</li><a name="line.133"></a> |
| <FONT color="green">134</FONT> * <li>If the trimmed string is equal to the empty String (i.e. &quot;&quot;), return <code>null</code></li><a name="line.134"></a> |
| <FONT color="green">135</FONT> * <li>If the trimmed string is not the empty string, return the trimmed version</li>.<a name="line.135"></a> |
| <FONT color="green">136</FONT> * </ol><a name="line.136"></a> |
| <FONT color="green">137</FONT> * <p/><a name="line.137"></a> |
| <FONT color="green">138</FONT> * Therefore this method always ensures that any given string has trimmed text, and if it doesn't, <code>null</code><a name="line.138"></a> |
| <FONT color="green">139</FONT> * is returned.<a name="line.139"></a> |
| <FONT color="green">140</FONT> *<a name="line.140"></a> |
| <FONT color="green">141</FONT> * @param in the input String to clean.<a name="line.141"></a> |
| <FONT color="green">142</FONT> * @return a populated-but-trimmed String or <code>null</code> otherwise<a name="line.142"></a> |
| <FONT color="green">143</FONT> */<a name="line.143"></a> |
| <FONT color="green">144</FONT> public static String clean(String in) {<a name="line.144"></a> |
| <FONT color="green">145</FONT> String out = in;<a name="line.145"></a> |
| <FONT color="green">146</FONT> <a name="line.146"></a> |
| <FONT color="green">147</FONT> if (in != null) {<a name="line.147"></a> |
| <FONT color="green">148</FONT> out = in.trim();<a name="line.148"></a> |
| <FONT color="green">149</FONT> if (out.equals(EMPTY_STRING)) {<a name="line.149"></a> |
| <FONT color="green">150</FONT> out = null;<a name="line.150"></a> |
| <FONT color="green">151</FONT> }<a name="line.151"></a> |
| <FONT color="green">152</FONT> }<a name="line.152"></a> |
| <FONT color="green">153</FONT> <a name="line.153"></a> |
| <FONT color="green">154</FONT> return out;<a name="line.154"></a> |
| <FONT color="green">155</FONT> }<a name="line.155"></a> |
| <FONT color="green">156</FONT> <a name="line.156"></a> |
| <FONT color="green">157</FONT> /**<a name="line.157"></a> |
| <FONT color="green">158</FONT> * Returns the specified array as a comma-delimited (',') string.<a name="line.158"></a> |
| <FONT color="green">159</FONT> *<a name="line.159"></a> |
| <FONT color="green">160</FONT> * @param array the array whose contents will be converted to a string.<a name="line.160"></a> |
| <FONT color="green">161</FONT> * @return the array's contents as a comma-delimited (',') string.<a name="line.161"></a> |
| <FONT color="green">162</FONT> * @since 1.0<a name="line.162"></a> |
| <FONT color="green">163</FONT> */<a name="line.163"></a> |
| <FONT color="green">164</FONT> public static String toString(Object[] array) {<a name="line.164"></a> |
| <FONT color="green">165</FONT> return toDelimitedString(array, ",");<a name="line.165"></a> |
| <FONT color="green">166</FONT> }<a name="line.166"></a> |
| <FONT color="green">167</FONT> <a name="line.167"></a> |
| <FONT color="green">168</FONT> /**<a name="line.168"></a> |
| <FONT color="green">169</FONT> * Returns the array's contents as a string, with each element delimited by the specified<a name="line.169"></a> |
| <FONT color="green">170</FONT> * {@code delimiter} argument. Useful for {@code toString()} implementations and log messages.<a name="line.170"></a> |
| <FONT color="green">171</FONT> *<a name="line.171"></a> |
| <FONT color="green">172</FONT> * @param array the array whose contents will be converted to a string<a name="line.172"></a> |
| <FONT color="green">173</FONT> * @param delimiter the delimiter to use between each element<a name="line.173"></a> |
| <FONT color="green">174</FONT> * @return a single string, delimited by the specified {@code delimiter}.<a name="line.174"></a> |
| <FONT color="green">175</FONT> * @since 1.0<a name="line.175"></a> |
| <FONT color="green">176</FONT> */<a name="line.176"></a> |
| <FONT color="green">177</FONT> public static String toDelimitedString(Object[] array, String delimiter) {<a name="line.177"></a> |
| <FONT color="green">178</FONT> if (array == null || array.length == 0) {<a name="line.178"></a> |
| <FONT color="green">179</FONT> return EMPTY_STRING;<a name="line.179"></a> |
| <FONT color="green">180</FONT> }<a name="line.180"></a> |
| <FONT color="green">181</FONT> StringBuilder sb = new StringBuilder();<a name="line.181"></a> |
| <FONT color="green">182</FONT> for (int i = 0; i < array.length; i++) {<a name="line.182"></a> |
| <FONT color="green">183</FONT> if (i > 0) {<a name="line.183"></a> |
| <FONT color="green">184</FONT> sb.append(delimiter);<a name="line.184"></a> |
| <FONT color="green">185</FONT> }<a name="line.185"></a> |
| <FONT color="green">186</FONT> sb.append(array[i]);<a name="line.186"></a> |
| <FONT color="green">187</FONT> }<a name="line.187"></a> |
| <FONT color="green">188</FONT> return sb.toString();<a name="line.188"></a> |
| <FONT color="green">189</FONT> }<a name="line.189"></a> |
| <FONT color="green">190</FONT> <a name="line.190"></a> |
| <FONT color="green">191</FONT> /**<a name="line.191"></a> |
| <FONT color="green">192</FONT> * Returns the collection's contents as a string, with each element delimited by the specified<a name="line.192"></a> |
| <FONT color="green">193</FONT> * {@code delimiter} argument. Useful for {@code toString()} implementations and log messages.<a name="line.193"></a> |
| <FONT color="green">194</FONT> *<a name="line.194"></a> |
| <FONT color="green">195</FONT> * @param c the collection whose contents will be converted to a string<a name="line.195"></a> |
| <FONT color="green">196</FONT> * @param delimiter the delimiter to use between each element<a name="line.196"></a> |
| <FONT color="green">197</FONT> * @return a single string, delimited by the specified {@code delimiter}.<a name="line.197"></a> |
| <FONT color="green">198</FONT> * @since 1.2<a name="line.198"></a> |
| <FONT color="green">199</FONT> */<a name="line.199"></a> |
| <FONT color="green">200</FONT> public static String toDelimitedString(Collection c, String delimiter) {<a name="line.200"></a> |
| <FONT color="green">201</FONT> if (c == null || c.isEmpty()) {<a name="line.201"></a> |
| <FONT color="green">202</FONT> return EMPTY_STRING;<a name="line.202"></a> |
| <FONT color="green">203</FONT> }<a name="line.203"></a> |
| <FONT color="green">204</FONT> return join(c.iterator(), delimiter);<a name="line.204"></a> |
| <FONT color="green">205</FONT> }<a name="line.205"></a> |
| <FONT color="green">206</FONT> <a name="line.206"></a> |
| <FONT color="green">207</FONT> /**<a name="line.207"></a> |
| <FONT color="green">208</FONT> * Tokenize the given String into a String array via a StringTokenizer.<a name="line.208"></a> |
| <FONT color="green">209</FONT> * Trims tokens and omits empty tokens.<a name="line.209"></a> |
| <FONT color="green">210</FONT> * <p>The given delimiters string is supposed to consist of any number of<a name="line.210"></a> |
| <FONT color="green">211</FONT> * delimiter characters. Each of those characters can be used to separate<a name="line.211"></a> |
| <FONT color="green">212</FONT> * tokens. A delimiter is always a single character; for multi-character<a name="line.212"></a> |
| <FONT color="green">213</FONT> * delimiters, consider using <code>delimitedListToStringArray</code><a name="line.213"></a> |
| <FONT color="green">214</FONT> * <p/><a name="line.214"></a> |
| <FONT color="green">215</FONT> * <p>Copied from the Spring Framework while retaining all license, copyright and author information.<a name="line.215"></a> |
| <FONT color="green">216</FONT> *<a name="line.216"></a> |
| <FONT color="green">217</FONT> * @param str the String to tokenize<a name="line.217"></a> |
| <FONT color="green">218</FONT> * @param delimiters the delimiter characters, assembled as String<a name="line.218"></a> |
| <FONT color="green">219</FONT> * (each of those characters is individually considered as delimiter).<a name="line.219"></a> |
| <FONT color="green">220</FONT> * @return an array of the tokens<a name="line.220"></a> |
| <FONT color="green">221</FONT> * @see java.util.StringTokenizer<a name="line.221"></a> |
| <FONT color="green">222</FONT> * @see java.lang.String#trim()<a name="line.222"></a> |
| <FONT color="green">223</FONT> */<a name="line.223"></a> |
| <FONT color="green">224</FONT> public static String[] tokenizeToStringArray(String str, String delimiters) {<a name="line.224"></a> |
| <FONT color="green">225</FONT> return tokenizeToStringArray(str, delimiters, true, true);<a name="line.225"></a> |
| <FONT color="green">226</FONT> }<a name="line.226"></a> |
| <FONT color="green">227</FONT> <a name="line.227"></a> |
| <FONT color="green">228</FONT> /**<a name="line.228"></a> |
| <FONT color="green">229</FONT> * Tokenize the given String into a String array via a StringTokenizer.<a name="line.229"></a> |
| <FONT color="green">230</FONT> * <p>The given delimiters string is supposed to consist of any number of<a name="line.230"></a> |
| <FONT color="green">231</FONT> * delimiter characters. Each of those characters can be used to separate<a name="line.231"></a> |
| <FONT color="green">232</FONT> * tokens. A delimiter is always a single character; for multi-character<a name="line.232"></a> |
| <FONT color="green">233</FONT> * delimiters, consider using <code>delimitedListToStringArray</code><a name="line.233"></a> |
| <FONT color="green">234</FONT> * <p/><a name="line.234"></a> |
| <FONT color="green">235</FONT> * <p>Copied from the Spring Framework while retaining all license, copyright and author information.<a name="line.235"></a> |
| <FONT color="green">236</FONT> *<a name="line.236"></a> |
| <FONT color="green">237</FONT> * @param str the String to tokenize<a name="line.237"></a> |
| <FONT color="green">238</FONT> * @param delimiters the delimiter characters, assembled as String<a name="line.238"></a> |
| <FONT color="green">239</FONT> * (each of those characters is individually considered as delimiter)<a name="line.239"></a> |
| <FONT color="green">240</FONT> * @param trimTokens trim the tokens via String's <code>trim</code><a name="line.240"></a> |
| <FONT color="green">241</FONT> * @param ignoreEmptyTokens omit empty tokens from the result array<a name="line.241"></a> |
| <FONT color="green">242</FONT> * (only applies to tokens that are empty after trimming; StringTokenizer<a name="line.242"></a> |
| <FONT color="green">243</FONT> * will not consider subsequent delimiters as token in the first place).<a name="line.243"></a> |
| <FONT color="green">244</FONT> * @return an array of the tokens (<code>null</code> if the input String<a name="line.244"></a> |
| <FONT color="green">245</FONT> * was <code>null</code>)<a name="line.245"></a> |
| <FONT color="green">246</FONT> * @see java.util.StringTokenizer<a name="line.246"></a> |
| <FONT color="green">247</FONT> * @see java.lang.String#trim()<a name="line.247"></a> |
| <FONT color="green">248</FONT> */<a name="line.248"></a> |
| <FONT color="green">249</FONT> @SuppressWarnings({"unchecked"})<a name="line.249"></a> |
| <FONT color="green">250</FONT> public static String[] tokenizeToStringArray(<a name="line.250"></a> |
| <FONT color="green">251</FONT> String str, String delimiters, boolean trimTokens, boolean ignoreEmptyTokens) {<a name="line.251"></a> |
| <FONT color="green">252</FONT> <a name="line.252"></a> |
| <FONT color="green">253</FONT> if (str == null) {<a name="line.253"></a> |
| <FONT color="green">254</FONT> return null;<a name="line.254"></a> |
| <FONT color="green">255</FONT> }<a name="line.255"></a> |
| <FONT color="green">256</FONT> StringTokenizer st = new StringTokenizer(str, delimiters);<a name="line.256"></a> |
| <FONT color="green">257</FONT> List tokens = new ArrayList();<a name="line.257"></a> |
| <FONT color="green">258</FONT> while (st.hasMoreTokens()) {<a name="line.258"></a> |
| <FONT color="green">259</FONT> String token = st.nextToken();<a name="line.259"></a> |
| <FONT color="green">260</FONT> if (trimTokens) {<a name="line.260"></a> |
| <FONT color="green">261</FONT> token = token.trim();<a name="line.261"></a> |
| <FONT color="green">262</FONT> }<a name="line.262"></a> |
| <FONT color="green">263</FONT> if (!ignoreEmptyTokens || token.length() > 0) {<a name="line.263"></a> |
| <FONT color="green">264</FONT> tokens.add(token);<a name="line.264"></a> |
| <FONT color="green">265</FONT> }<a name="line.265"></a> |
| <FONT color="green">266</FONT> }<a name="line.266"></a> |
| <FONT color="green">267</FONT> return toStringArray(tokens);<a name="line.267"></a> |
| <FONT color="green">268</FONT> }<a name="line.268"></a> |
| <FONT color="green">269</FONT> <a name="line.269"></a> |
| <FONT color="green">270</FONT> /**<a name="line.270"></a> |
| <FONT color="green">271</FONT> * Copy the given Collection into a String array.<a name="line.271"></a> |
| <FONT color="green">272</FONT> * The Collection must contain String elements only.<a name="line.272"></a> |
| <FONT color="green">273</FONT> * <p/><a name="line.273"></a> |
| <FONT color="green">274</FONT> * <p>Copied from the Spring Framework while retaining all license, copyright and author information.<a name="line.274"></a> |
| <FONT color="green">275</FONT> *<a name="line.275"></a> |
| <FONT color="green">276</FONT> * @param collection the Collection to copy<a name="line.276"></a> |
| <FONT color="green">277</FONT> * @return the String array (<code>null</code> if the passed-in<a name="line.277"></a> |
| <FONT color="green">278</FONT> * Collection was <code>null</code>)<a name="line.278"></a> |
| <FONT color="green">279</FONT> */<a name="line.279"></a> |
| <FONT color="green">280</FONT> @SuppressWarnings({"unchecked"})<a name="line.280"></a> |
| <FONT color="green">281</FONT> public static String[] toStringArray(Collection collection) {<a name="line.281"></a> |
| <FONT color="green">282</FONT> if (collection == null) {<a name="line.282"></a> |
| <FONT color="green">283</FONT> return null;<a name="line.283"></a> |
| <FONT color="green">284</FONT> }<a name="line.284"></a> |
| <FONT color="green">285</FONT> return (String[]) collection.toArray(new String[collection.size()]);<a name="line.285"></a> |
| <FONT color="green">286</FONT> }<a name="line.286"></a> |
| <FONT color="green">287</FONT> <a name="line.287"></a> |
| <FONT color="green">288</FONT> public static String[] splitKeyValue(String aLine) throws ParseException {<a name="line.288"></a> |
| <FONT color="green">289</FONT> String line = clean(aLine);<a name="line.289"></a> |
| <FONT color="green">290</FONT> if (line == null) {<a name="line.290"></a> |
| <FONT color="green">291</FONT> return null;<a name="line.291"></a> |
| <FONT color="green">292</FONT> }<a name="line.292"></a> |
| <FONT color="green">293</FONT> String[] split = line.split(" ", 2);<a name="line.293"></a> |
| <FONT color="green">294</FONT> if (split.length != 2) {<a name="line.294"></a> |
| <FONT color="green">295</FONT> //fallback to checking for an equals sign<a name="line.295"></a> |
| <FONT color="green">296</FONT> split = line.split("=", 2);<a name="line.296"></a> |
| <FONT color="green">297</FONT> if (split.length != 2) {<a name="line.297"></a> |
| <FONT color="green">298</FONT> String msg = "Unable to determine Key/Value pair from line [" + line + "]. There is no space from " +<a name="line.298"></a> |
| <FONT color="green">299</FONT> "which the split location could be determined.";<a name="line.299"></a> |
| <FONT color="green">300</FONT> throw new ParseException(msg, 0);<a name="line.300"></a> |
| <FONT color="green">301</FONT> }<a name="line.301"></a> |
| <FONT color="green">302</FONT> <a name="line.302"></a> |
| <FONT color="green">303</FONT> }<a name="line.303"></a> |
| <FONT color="green">304</FONT> <a name="line.304"></a> |
| <FONT color="green">305</FONT> split[0] = clean(split[0]);<a name="line.305"></a> |
| <FONT color="green">306</FONT> split[1] = clean(split[1]);<a name="line.306"></a> |
| <FONT color="green">307</FONT> if (split[1].startsWith("=")) {<a name="line.307"></a> |
| <FONT color="green">308</FONT> //they used spaces followed by an equals followed by zero or more spaces to split the key/value pair, so<a name="line.308"></a> |
| <FONT color="green">309</FONT> //remove the equals sign to result in only the key and values in the<a name="line.309"></a> |
| <FONT color="green">310</FONT> split[1] = clean(split[1].substring(1));<a name="line.310"></a> |
| <FONT color="green">311</FONT> }<a name="line.311"></a> |
| <FONT color="green">312</FONT> <a name="line.312"></a> |
| <FONT color="green">313</FONT> if (split[0] == null) {<a name="line.313"></a> |
| <FONT color="green">314</FONT> String msg = "No valid key could be found in line [" + line + "] to form a key/value pair.";<a name="line.314"></a> |
| <FONT color="green">315</FONT> throw new ParseException(msg, 0);<a name="line.315"></a> |
| <FONT color="green">316</FONT> }<a name="line.316"></a> |
| <FONT color="green">317</FONT> if (split[1] == null) {<a name="line.317"></a> |
| <FONT color="green">318</FONT> String msg = "No corresponding value could be found in line [" + line + "] for key [" + split[0] + "]";<a name="line.318"></a> |
| <FONT color="green">319</FONT> throw new ParseException(msg, 0);<a name="line.319"></a> |
| <FONT color="green">320</FONT> }<a name="line.320"></a> |
| <FONT color="green">321</FONT> <a name="line.321"></a> |
| <FONT color="green">322</FONT> return split;<a name="line.322"></a> |
| <FONT color="green">323</FONT> }<a name="line.323"></a> |
| <FONT color="green">324</FONT> <a name="line.324"></a> |
| <FONT color="green">325</FONT> public static String[] split(String line) {<a name="line.325"></a> |
| <FONT color="green">326</FONT> return split(line, DEFAULT_DELIMITER_CHAR);<a name="line.326"></a> |
| <FONT color="green">327</FONT> }<a name="line.327"></a> |
| <FONT color="green">328</FONT> <a name="line.328"></a> |
| <FONT color="green">329</FONT> public static String[] split(String line, char delimiter) {<a name="line.329"></a> |
| <FONT color="green">330</FONT> return split(line, delimiter, DEFAULT_QUOTE_CHAR);<a name="line.330"></a> |
| <FONT color="green">331</FONT> }<a name="line.331"></a> |
| <FONT color="green">332</FONT> <a name="line.332"></a> |
| <FONT color="green">333</FONT> public static String[] split(String line, char delimiter, char quoteChar) {<a name="line.333"></a> |
| <FONT color="green">334</FONT> return split(line, delimiter, quoteChar, quoteChar);<a name="line.334"></a> |
| <FONT color="green">335</FONT> }<a name="line.335"></a> |
| <FONT color="green">336</FONT> <a name="line.336"></a> |
| <FONT color="green">337</FONT> public static String[] split(String line, char delimiter, char beginQuoteChar, char endQuoteChar) {<a name="line.337"></a> |
| <FONT color="green">338</FONT> return split(line, delimiter, beginQuoteChar, endQuoteChar, false, true);<a name="line.338"></a> |
| <FONT color="green">339</FONT> }<a name="line.339"></a> |
| <FONT color="green">340</FONT> <a name="line.340"></a> |
| <FONT color="green">341</FONT> /**<a name="line.341"></a> |
| <FONT color="green">342</FONT> * Splits the specified delimited String into tokens, supporting quoted tokens so that quoted strings themselves<a name="line.342"></a> |
| <FONT color="green">343</FONT> * won't be tokenized.<a name="line.343"></a> |
| <FONT color="green">344</FONT> * <p/><a name="line.344"></a> |
| <FONT color="green">345</FONT> * This method's implementation is very loosely based (with significant modifications) on<a name="line.345"></a> |
| <FONT color="green">346</FONT> * <a href="http://blogs.bytecode.com.au/glen">Glen Smith</a>'s open-source<a name="line.346"></a> |
| <FONT color="green">347</FONT> * <a href="http://opencsv.svn.sourceforge.net/viewvc/opencsv/trunk/src/au/com/bytecode/opencsv/CSVReader.java?&view=markup">CSVReader.java</a><a name="line.347"></a> |
| <FONT color="green">348</FONT> * file.<a name="line.348"></a> |
| <FONT color="green">349</FONT> * <p/><a name="line.349"></a> |
| <FONT color="green">350</FONT> * That file is Apache 2.0 licensed as well, making Glen's code a great starting point for us to modify to<a name="line.350"></a> |
| <FONT color="green">351</FONT> * our needs.<a name="line.351"></a> |
| <FONT color="green">352</FONT> *<a name="line.352"></a> |
| <FONT color="green">353</FONT> * @param aLine the String to parse<a name="line.353"></a> |
| <FONT color="green">354</FONT> * @param delimiter the delimiter by which the <tt>line</tt> argument is to be split<a name="line.354"></a> |
| <FONT color="green">355</FONT> * @param beginQuoteChar the character signifying the start of quoted text (so the quoted text will not be split)<a name="line.355"></a> |
| <FONT color="green">356</FONT> * @param endQuoteChar the character signifying the end of quoted text<a name="line.356"></a> |
| <FONT color="green">357</FONT> * @param retainQuotes if the quotes themselves should be retained when constructing the corresponding token<a name="line.357"></a> |
| <FONT color="green">358</FONT> * @param trimTokens if leading and trailing whitespace should be trimmed from discovered tokens.<a name="line.358"></a> |
| <FONT color="green">359</FONT> * @return the tokens discovered from parsing the given delimited <tt>line</tt>.<a name="line.359"></a> |
| <FONT color="green">360</FONT> */<a name="line.360"></a> |
| <FONT color="green">361</FONT> public static String[] split(String aLine, char delimiter, char beginQuoteChar, char endQuoteChar,<a name="line.361"></a> |
| <FONT color="green">362</FONT> boolean retainQuotes, boolean trimTokens) {<a name="line.362"></a> |
| <FONT color="green">363</FONT> String line = clean(aLine);<a name="line.363"></a> |
| <FONT color="green">364</FONT> if (line == null) {<a name="line.364"></a> |
| <FONT color="green">365</FONT> return null;<a name="line.365"></a> |
| <FONT color="green">366</FONT> }<a name="line.366"></a> |
| <FONT color="green">367</FONT> <a name="line.367"></a> |
| <FONT color="green">368</FONT> List<String> tokens = new ArrayList<String>();<a name="line.368"></a> |
| <FONT color="green">369</FONT> StringBuilder sb = new StringBuilder();<a name="line.369"></a> |
| <FONT color="green">370</FONT> boolean inQuotes = false;<a name="line.370"></a> |
| <FONT color="green">371</FONT> <a name="line.371"></a> |
| <FONT color="green">372</FONT> for (int i = 0; i < line.length(); i++) {<a name="line.372"></a> |
| <FONT color="green">373</FONT> <a name="line.373"></a> |
| <FONT color="green">374</FONT> char c = line.charAt(i);<a name="line.374"></a> |
| <FONT color="green">375</FONT> if (c == beginQuoteChar) {<a name="line.375"></a> |
| <FONT color="green">376</FONT> // this gets complex... the quote may end a quoted block, or escape another quote.<a name="line.376"></a> |
| <FONT color="green">377</FONT> // do a 1-char lookahead:<a name="line.377"></a> |
| <FONT color="green">378</FONT> if (inQuotes // we are in quotes, therefore there can be escaped quotes in here.<a name="line.378"></a> |
| <FONT color="green">379</FONT> && line.length() > (i + 1) // there is indeed another character to check.<a name="line.379"></a> |
| <FONT color="green">380</FONT> && line.charAt(i + 1) == beginQuoteChar) { // ..and that char. is a quote also.<a name="line.380"></a> |
| <FONT color="green">381</FONT> // we have two quote chars in a row == one quote char, so consume them both and<a name="line.381"></a> |
| <FONT color="green">382</FONT> // put one on the token. we do *not* exit the quoted text.<a name="line.382"></a> |
| <FONT color="green">383</FONT> sb.append(line.charAt(i + 1));<a name="line.383"></a> |
| <FONT color="green">384</FONT> i++;<a name="line.384"></a> |
| <FONT color="green">385</FONT> } else {<a name="line.385"></a> |
| <FONT color="green">386</FONT> inQuotes = !inQuotes;<a name="line.386"></a> |
| <FONT color="green">387</FONT> if (retainQuotes) {<a name="line.387"></a> |
| <FONT color="green">388</FONT> sb.append(c);<a name="line.388"></a> |
| <FONT color="green">389</FONT> }<a name="line.389"></a> |
| <FONT color="green">390</FONT> }<a name="line.390"></a> |
| <FONT color="green">391</FONT> } else if (c == endQuoteChar) {<a name="line.391"></a> |
| <FONT color="green">392</FONT> inQuotes = !inQuotes;<a name="line.392"></a> |
| <FONT color="green">393</FONT> if (retainQuotes) {<a name="line.393"></a> |
| <FONT color="green">394</FONT> sb.append(c);<a name="line.394"></a> |
| <FONT color="green">395</FONT> }<a name="line.395"></a> |
| <FONT color="green">396</FONT> } else if (c == delimiter && !inQuotes) {<a name="line.396"></a> |
| <FONT color="green">397</FONT> String s = sb.toString();<a name="line.397"></a> |
| <FONT color="green">398</FONT> if (trimTokens) {<a name="line.398"></a> |
| <FONT color="green">399</FONT> s = s.trim();<a name="line.399"></a> |
| <FONT color="green">400</FONT> }<a name="line.400"></a> |
| <FONT color="green">401</FONT> tokens.add(s);<a name="line.401"></a> |
| <FONT color="green">402</FONT> sb = new StringBuilder(); // start work on next token<a name="line.402"></a> |
| <FONT color="green">403</FONT> } else {<a name="line.403"></a> |
| <FONT color="green">404</FONT> sb.append(c);<a name="line.404"></a> |
| <FONT color="green">405</FONT> }<a name="line.405"></a> |
| <FONT color="green">406</FONT> }<a name="line.406"></a> |
| <FONT color="green">407</FONT> String s = sb.toString();<a name="line.407"></a> |
| <FONT color="green">408</FONT> if (trimTokens) {<a name="line.408"></a> |
| <FONT color="green">409</FONT> s = s.trim();<a name="line.409"></a> |
| <FONT color="green">410</FONT> }<a name="line.410"></a> |
| <FONT color="green">411</FONT> tokens.add(s);<a name="line.411"></a> |
| <FONT color="green">412</FONT> return tokens.toArray(new String[tokens.size()]);<a name="line.412"></a> |
| <FONT color="green">413</FONT> }<a name="line.413"></a> |
| <FONT color="green">414</FONT> <a name="line.414"></a> |
| <FONT color="green">415</FONT> /**<a name="line.415"></a> |
| <FONT color="green">416</FONT> * Joins the elements of the provided {@code Iterator} into<a name="line.416"></a> |
| <FONT color="green">417</FONT> * a single String containing the provided elements.</p><a name="line.417"></a> |
| <FONT color="green">418</FONT> * <p/><a name="line.418"></a> |
| <FONT color="green">419</FONT> * No delimiter is added before or after the list.<a name="line.419"></a> |
| <FONT color="green">420</FONT> * A {@code null} separator is the same as an empty String ("").</p><a name="line.420"></a> |
| <FONT color="green">421</FONT> * <p/><a name="line.421"></a> |
| <FONT color="green">422</FONT> * Copied from Commons Lang, version 3 (r1138702).</p><a name="line.422"></a> |
| <FONT color="green">423</FONT> *<a name="line.423"></a> |
| <FONT color="green">424</FONT> * @param iterator the {@code Iterator} of values to join together, may be null<a name="line.424"></a> |
| <FONT color="green">425</FONT> * @param separator the separator character to use, null treated as ""<a name="line.425"></a> |
| <FONT color="green">426</FONT> * @return the joined String, {@code null} if null iterator input<a name="line.426"></a> |
| <FONT color="green">427</FONT> * @since 1.2<a name="line.427"></a> |
| <FONT color="green">428</FONT> */<a name="line.428"></a> |
| <FONT color="green">429</FONT> public static String join(Iterator<?> iterator, String separator) {<a name="line.429"></a> |
| <FONT color="green">430</FONT> final String empty = "";<a name="line.430"></a> |
| <FONT color="green">431</FONT> <a name="line.431"></a> |
| <FONT color="green">432</FONT> // handle null, zero and one elements before building a buffer<a name="line.432"></a> |
| <FONT color="green">433</FONT> if (iterator == null) {<a name="line.433"></a> |
| <FONT color="green">434</FONT> return null;<a name="line.434"></a> |
| <FONT color="green">435</FONT> }<a name="line.435"></a> |
| <FONT color="green">436</FONT> if (!iterator.hasNext()) {<a name="line.436"></a> |
| <FONT color="green">437</FONT> return empty;<a name="line.437"></a> |
| <FONT color="green">438</FONT> }<a name="line.438"></a> |
| <FONT color="green">439</FONT> Object first = iterator.next();<a name="line.439"></a> |
| <FONT color="green">440</FONT> if (!iterator.hasNext()) {<a name="line.440"></a> |
| <FONT color="green">441</FONT> return first == null ? empty : first.toString();<a name="line.441"></a> |
| <FONT color="green">442</FONT> }<a name="line.442"></a> |
| <FONT color="green">443</FONT> <a name="line.443"></a> |
| <FONT color="green">444</FONT> // two or more elements<a name="line.444"></a> |
| <FONT color="green">445</FONT> StringBuilder buf = new StringBuilder(256); // Java default is 16, probably too small<a name="line.445"></a> |
| <FONT color="green">446</FONT> if (first != null) {<a name="line.446"></a> |
| <FONT color="green">447</FONT> buf.append(first);<a name="line.447"></a> |
| <FONT color="green">448</FONT> }<a name="line.448"></a> |
| <FONT color="green">449</FONT> <a name="line.449"></a> |
| <FONT color="green">450</FONT> while (iterator.hasNext()) {<a name="line.450"></a> |
| <FONT color="green">451</FONT> if (separator != null) {<a name="line.451"></a> |
| <FONT color="green">452</FONT> buf.append(separator);<a name="line.452"></a> |
| <FONT color="green">453</FONT> }<a name="line.453"></a> |
| <FONT color="green">454</FONT> Object obj = iterator.next();<a name="line.454"></a> |
| <FONT color="green">455</FONT> if (obj != null) {<a name="line.455"></a> |
| <FONT color="green">456</FONT> buf.append(obj);<a name="line.456"></a> |
| <FONT color="green">457</FONT> }<a name="line.457"></a> |
| <FONT color="green">458</FONT> }<a name="line.458"></a> |
| <FONT color="green">459</FONT> return buf.toString();<a name="line.459"></a> |
| <FONT color="green">460</FONT> }<a name="line.460"></a> |
| <FONT color="green">461</FONT> <a name="line.461"></a> |
| <FONT color="green">462</FONT> /**<a name="line.462"></a> |
| <FONT color="green">463</FONT> * Splits the {@code delimited} string (delimited by the specified {@code separator} character) and returns the<a name="line.463"></a> |
| <FONT color="green">464</FONT> * delimited values as a {@code Set}.<a name="line.464"></a> |
| <FONT color="green">465</FONT> * <p/><a name="line.465"></a> |
| <FONT color="green">466</FONT> * If either argument is {@code null}, this method returns {@code null}.<a name="line.466"></a> |
| <FONT color="green">467</FONT> *<a name="line.467"></a> |
| <FONT color="green">468</FONT> * @param delimited the string to split<a name="line.468"></a> |
| <FONT color="green">469</FONT> * @param separator the character that delineates individual tokens to split<a name="line.469"></a> |
| <FONT color="green">470</FONT> * @return the delimited values as a {@code Set}.<a name="line.470"></a> |
| <FONT color="green">471</FONT> * @since 1.2<a name="line.471"></a> |
| <FONT color="green">472</FONT> */<a name="line.472"></a> |
| <FONT color="green">473</FONT> public static Set<String> splitToSet(String delimited, String separator) {<a name="line.473"></a> |
| <FONT color="green">474</FONT> if (delimited == null || separator == null) {<a name="line.474"></a> |
| <FONT color="green">475</FONT> return null;<a name="line.475"></a> |
| <FONT color="green">476</FONT> }<a name="line.476"></a> |
| <FONT color="green">477</FONT> String[] split = split(delimited, separator.charAt(0));<a name="line.477"></a> |
| <FONT color="green">478</FONT> return CollectionUtils.asSet(split);<a name="line.478"></a> |
| <FONT color="green">479</FONT> }<a name="line.479"></a> |
| <FONT color="green">480</FONT> <a name="line.480"></a> |
| <FONT color="green">481</FONT> /**<a name="line.481"></a> |
| <FONT color="green">482</FONT> * Returns the input argument, but ensures the first character is capitalized (if possible).<a name="line.482"></a> |
| <FONT color="green">483</FONT> * @param in the string to uppercase the first character.<a name="line.483"></a> |
| <FONT color="green">484</FONT> * @return the input argument, but with the first character capitalized (if possible).<a name="line.484"></a> |
| <FONT color="green">485</FONT> * @since 1.2<a name="line.485"></a> |
| <FONT color="green">486</FONT> */<a name="line.486"></a> |
| <FONT color="green">487</FONT> public static String uppercaseFirstChar(String in) {<a name="line.487"></a> |
| <FONT color="green">488</FONT> if (in == null || in.length() == 0) {<a name="line.488"></a> |
| <FONT color="green">489</FONT> return in;<a name="line.489"></a> |
| <FONT color="green">490</FONT> }<a name="line.490"></a> |
| <FONT color="green">491</FONT> int length = in.length();<a name="line.491"></a> |
| <FONT color="green">492</FONT> StringBuilder sb = new StringBuilder(length);<a name="line.492"></a> |
| <FONT color="green">493</FONT> <a name="line.493"></a> |
| <FONT color="green">494</FONT> sb.append(Character.toUpperCase(in.charAt(0)));<a name="line.494"></a> |
| <FONT color="green">495</FONT> if (length > 1) {<a name="line.495"></a> |
| <FONT color="green">496</FONT> String remaining = in.substring(1);<a name="line.496"></a> |
| <FONT color="green">497</FONT> sb.append(remaining);<a name="line.497"></a> |
| <FONT color="green">498</FONT> }<a name="line.498"></a> |
| <FONT color="green">499</FONT> return sb.toString();<a name="line.499"></a> |
| <FONT color="green">500</FONT> }<a name="line.500"></a> |
| <FONT color="green">501</FONT> <a name="line.501"></a> |
| <FONT color="green">502</FONT> }<a name="line.502"></a> |
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| </PRE> |
| </BODY> |
| </HTML> |
