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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 or more<a name="line.2"></a> |
| <span class="sourceLineNo">003</span> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a> |
| <span class="sourceLineNo">004</span> * this work for additional information regarding copyright ownership.<a name="line.4"></a> |
| <span class="sourceLineNo">005</span> * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a> |
| <span class="sourceLineNo">006</span> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a> |
| <span class="sourceLineNo">007</span> * the License. You may obtain a copy of the License at<a name="line.7"></a> |
| <span class="sourceLineNo">008</span> *<a name="line.8"></a> |
| <span class="sourceLineNo">009</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> |
| <span class="sourceLineNo">010</span> *<a name="line.10"></a> |
| <span class="sourceLineNo">011</span> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> |
| <span class="sourceLineNo">012</span> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a> |
| <span class="sourceLineNo">013</span> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a> |
| <span class="sourceLineNo">014</span> * See the License for the specific language governing permissions and<a name="line.14"></a> |
| <span class="sourceLineNo">015</span> * limitations under the License.<a name="line.15"></a> |
| <span class="sourceLineNo">016</span> */<a name="line.16"></a> |
| <span class="sourceLineNo">017</span><a name="line.17"></a> |
| <span class="sourceLineNo">018</span>package org.apache.log4j.helpers;<a name="line.18"></a> |
| <span class="sourceLineNo">019</span><a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import org.apache.log4j.Level;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span>import org.apache.logging.log4j.LogManager;<a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import org.apache.logging.log4j.Logger;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import org.apache.logging.log4j.util.LoaderUtil;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span><a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.io.InterruptedIOException;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.lang.reflect.InvocationTargetException;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.util.Properties;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span>/**<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> * A convenience class to convert property values to specific types.<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> */<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>public class OptionConverter {<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> <a name="line.33"></a> |
| <span class="sourceLineNo">034</span> static String DELIM_START = "${";<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> static char DELIM_STOP = '}';<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> static int DELIM_START_LEN = 2;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> static int DELIM_STOP_LEN = 1;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> private static final Logger LOGGER = LogManager.getLogger(OptionConverter.class);<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> private static final CharMap[] charMap = new CharMap[] {<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> new CharMap('n', '\n'),<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> new CharMap('r', '\r'),<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> new CharMap('t', '\t'),<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> new CharMap('f', '\f'),<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> new CharMap('\b', '\b'),<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> new CharMap('\"', '\"'),<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> new CharMap('\'', '\''),<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> new CharMap('\\', '\\') <a name="line.47"></a> |
| <span class="sourceLineNo">048</span> };<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> * OptionConverter is a static class.<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> */<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private OptionConverter() {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> }<a name="line.54"></a> |
| <span class="sourceLineNo">055</span><a name="line.55"></a> |
| <span class="sourceLineNo">056</span> public static String[] concatanateArrays(String[] l, String[] r) {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> int len = l.length + r.length;<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> String[] a = new String[len];<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> System.arraycopy(l, 0, a, 0, l.length);<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> System.arraycopy(r, 0, a, l.length, r.length);<a name="line.61"></a> |
| <span class="sourceLineNo">062</span><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> return a;<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> public static String convertSpecialChars(String s) {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> char c;<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> int len = s.length();<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> StringBuilder sbuf = new StringBuilder(len);<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> int i = 0;<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> while (i < len) {<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> c = s.charAt(i++);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> if (c == '\\') {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> c = s.charAt(i++);<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> for (CharMap entry : charMap) {<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> if (entry.key == c) {<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> c = entry.replacement;<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> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> sbuf.append(c);<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> return sbuf.toString();<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> }<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> /**<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> * Very similar to <code>System.getProperty</code> except<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> * that the {@link SecurityException} is hidden.<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> *<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> * @param key The key to search for.<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> * @param def The default value to return.<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> * @return the string value of the system property, or the default<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> * value if there is no property with that key.<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> * @since 1.1<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> */<a name="line.97"></a> |
| <span class="sourceLineNo">098</span> public static String getSystemProperty(String key, String def) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> try {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> return System.getProperty(key, def);<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> } catch (Throwable e) { // MS-Java throws com.ms.security.SecurityExceptionEx<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> LOGGER.debug("Was not allowed to read system property \"{}\".", key);<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> return def;<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<a name="line.105"></a> |
| <span class="sourceLineNo">106</span><a name="line.106"></a> |
| <span class="sourceLineNo">107</span> /**<a name="line.107"></a> |
| <span class="sourceLineNo">108</span> * If <code>value</code> is "true", then <code>true</code> is<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> * returned. If <code>value</code> is "false", then<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> * <code>true</code> is returned. Otherwise, <code>default</code> is<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> * returned.<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> *<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> * <p>Case of value is unimportant.<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> */<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public static boolean toBoolean(String value, boolean dEfault) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> if (value == null) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> return dEfault;<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> }<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> String trimmedVal = value.trim();<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> if ("true".equalsIgnoreCase(trimmedVal)) {<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> return true;<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> }<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> if ("false".equalsIgnoreCase(trimmedVal)) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> return false;<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> return dEfault;<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> /**<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> * Converts a standard or custom priority level to a Level<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> * object. <p> If <code>value</code> is of form<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> * "level#classname", then the specified class' toLevel method<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> * is called to process the specified level string; if no '#'<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> * character is present, then the default {@link org.apache.log4j.Level}<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> * class is used to process the level value.<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> *<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> * <p>As a special case, if the <code>value</code> parameter is<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> * equal to the string "NULL", then the value <code>null</code> will<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> * be returned.<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> *<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> * <p> If any error occurs while converting the value to a level,<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> * the <code>defaultValue</code> parameter, which may be<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> * <code>null</code>, is returned.<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> *<a name="line.144"></a> |
| <span class="sourceLineNo">145</span> * <p> Case of <code>value</code> is insignificant for the level level, but is<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> * significant for the class name part, if present.<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> *<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> * @since 1.1<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> */<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> public static Level toLevel(String value, Level defaultValue) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> if (value == null) {<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> return defaultValue;<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> }<a name="line.153"></a> |
| <span class="sourceLineNo">154</span><a name="line.154"></a> |
| <span class="sourceLineNo">155</span> value = value.trim();<a name="line.155"></a> |
| <span class="sourceLineNo">156</span><a name="line.156"></a> |
| <span class="sourceLineNo">157</span> int hashIndex = value.indexOf('#');<a name="line.157"></a> |
| <span class="sourceLineNo">158</span> if (hashIndex == -1) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> if ("NULL".equalsIgnoreCase(value)) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> return null;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> } else {<a name="line.161"></a> |
| <span class="sourceLineNo">162</span> // no class name specified : use standard Level class<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> return Level.toLevel(value, defaultValue);<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span><a name="line.166"></a> |
| <span class="sourceLineNo">167</span> Level result = defaultValue;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span><a name="line.168"></a> |
| <span class="sourceLineNo">169</span> String clazz = value.substring(hashIndex + 1);<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> String levelName = value.substring(0, hashIndex);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span><a name="line.171"></a> |
| <span class="sourceLineNo">172</span> // This is degenerate case but you never know.<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> if ("NULL".equalsIgnoreCase(levelName)) {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> return null;<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span><a name="line.176"></a> |
| <span class="sourceLineNo">177</span> LOGGER.debug("toLevel" + ":class=[" + clazz + "]"<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> + ":pri=[" + levelName + "]");<a name="line.178"></a> |
| <span class="sourceLineNo">179</span><a name="line.179"></a> |
| <span class="sourceLineNo">180</span> try {<a name="line.180"></a> |
| <span class="sourceLineNo">181</span> Class customLevel = LoaderUtil.loadClass(clazz);<a name="line.181"></a> |
| <span class="sourceLineNo">182</span><a name="line.182"></a> |
| <span class="sourceLineNo">183</span> // get a ref to the specified class' static method<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> // toLevel(String, org.apache.log4j.Level)<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> Class[] paramTypes = new Class[]{String.class,<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> org.apache.log4j.Level.class<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> };<a name="line.187"></a> |
| <span class="sourceLineNo">188</span> java.lang.reflect.Method toLevelMethod =<a name="line.188"></a> |
| <span class="sourceLineNo">189</span> customLevel.getMethod("toLevel", paramTypes);<a name="line.189"></a> |
| <span class="sourceLineNo">190</span><a name="line.190"></a> |
| <span class="sourceLineNo">191</span> // now call the toLevel method, passing level string + default<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> Object[] params = new Object[]{levelName, defaultValue};<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> Object o = toLevelMethod.invoke(null, params);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span><a name="line.194"></a> |
| <span class="sourceLineNo">195</span> result = (Level) o;<a name="line.195"></a> |
| <span class="sourceLineNo">196</span> } catch (ClassNotFoundException e) {<a name="line.196"></a> |
| <span class="sourceLineNo">197</span> LOGGER.warn("custom level class [" + clazz + "] not found.");<a name="line.197"></a> |
| <span class="sourceLineNo">198</span> } catch (NoSuchMethodException e) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> LOGGER.warn("custom level class [" + clazz + "]"<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> + " does not have a class function toLevel(String, Level)", e);<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> } catch (java.lang.reflect.InvocationTargetException e) {<a name="line.201"></a> |
| <span class="sourceLineNo">202</span> if (e.getTargetException() instanceof InterruptedException<a name="line.202"></a> |
| <span class="sourceLineNo">203</span> || e.getTargetException() instanceof InterruptedIOException) {<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> Thread.currentThread().interrupt();<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> }<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> LOGGER.warn("custom level class [" + clazz + "]"<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> + " could not be instantiated", e);<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> } catch (ClassCastException e) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> LOGGER.warn("class [" + clazz<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> + "] is not a subclass of org.apache.log4j.Level", e);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span> } catch (IllegalAccessException e) {<a name="line.211"></a> |
| <span class="sourceLineNo">212</span> LOGGER.warn("class [" + clazz +<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> "] cannot be instantiated due to access restrictions", e);<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> } catch (RuntimeException e) {<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> LOGGER.warn("class [" + clazz + "], level [" + levelName +<a name="line.215"></a> |
| <span class="sourceLineNo">216</span> "] conversion failed.", e);<a name="line.216"></a> |
| <span class="sourceLineNo">217</span> }<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> return result;<a name="line.218"></a> |
| <span class="sourceLineNo">219</span> }<a name="line.219"></a> |
| <span class="sourceLineNo">220</span><a name="line.220"></a> |
| <span class="sourceLineNo">221</span> /**<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> * Instantiate an object given a class name. Check that the<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> * <code>className</code> is a subclass of<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> * <code>superClass</code>. If that test fails or the object could<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> * not be instantiated, then <code>defaultValue</code> is returned.<a name="line.225"></a> |
| <span class="sourceLineNo">226</span> *<a name="line.226"></a> |
| <span class="sourceLineNo">227</span> * @param className The fully qualified class name of the object to instantiate.<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> * @param superClass The class to which the new object should belong.<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> * @param defaultValue The object to return in case of non-fulfillment<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> */<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> public static Object instantiateByClassName(String className, Class<?> superClass,<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> Object defaultValue) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> if (className != null) {<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> try {<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> Object obj = LoaderUtil.newInstanceOf(className);<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> if (!superClass.isAssignableFrom(obj.getClass())) {<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> LOGGER.error("A \"{}\" object is not assignable to a \"{}\" variable", className,<a name="line.237"></a> |
| <span class="sourceLineNo">238</span> superClass.getName());<a name="line.238"></a> |
| <span class="sourceLineNo">239</span> return defaultValue;<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> }<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> return obj;<a name="line.241"></a> |
| <span class="sourceLineNo">242</span> } catch (ClassNotFoundException | NoSuchMethodException | IllegalAccessException<a name="line.242"></a> |
| <span class="sourceLineNo">243</span> | InstantiationException | InvocationTargetException e) {<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> LOGGER.error("Could not instantiate class [" + className + "].", e);<a name="line.244"></a> |
| <span class="sourceLineNo">245</span> }<a name="line.245"></a> |
| <span class="sourceLineNo">246</span> }<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> return defaultValue;<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> }<a name="line.248"></a> |
| <span class="sourceLineNo">249</span><a name="line.249"></a> |
| <span class="sourceLineNo">250</span><a name="line.250"></a> |
| <span class="sourceLineNo">251</span> /**<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> * Perform variable substitution in string <code>val</code> from the<a name="line.252"></a> |
| <span class="sourceLineNo">253</span> * values of keys found in the system propeties.<a name="line.253"></a> |
| <span class="sourceLineNo">254</span> *<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> * <p>The variable substitution delimeters are <b>${</b> and <b>}</b>.<a name="line.255"></a> |
| <span class="sourceLineNo">256</span> *<a name="line.256"></a> |
| <span class="sourceLineNo">257</span> * <p>For example, if the System properties contains "key=value", then<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> * the call<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> * <pre><a name="line.259"></a> |
| <span class="sourceLineNo">260</span> * String s = OptionConverter.substituteVars("Value of key is ${key}.");<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> * </pre><a name="line.261"></a> |
| <span class="sourceLineNo">262</span> * <p><a name="line.262"></a> |
| <span class="sourceLineNo">263</span> * will set the variable <code>s</code> to "Value of key is value.".<a name="line.263"></a> |
| <span class="sourceLineNo">264</span> *<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> * <p>If no value could be found for the specified key, then the<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> * <code>props</code> parameter is searched, if the value could not<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> * be found there, then substitution defaults to the empty string.<a name="line.267"></a> |
| <span class="sourceLineNo">268</span> *<a name="line.268"></a> |
| <span class="sourceLineNo">269</span> * <p>For example, if system propeties contains no value for the key<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> * "inexistentKey", then the call<a name="line.270"></a> |
| <span class="sourceLineNo">271</span> *<a name="line.271"></a> |
| <span class="sourceLineNo">272</span> * <pre><a name="line.272"></a> |
| <span class="sourceLineNo">273</span> * String s = OptionConverter.subsVars("Value of inexistentKey is [${inexistentKey}]");<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> * </pre><a name="line.274"></a> |
| <span class="sourceLineNo">275</span> * will set <code>s</code> to "Value of inexistentKey is []"<a name="line.275"></a> |
| <span class="sourceLineNo">276</span> *<a name="line.276"></a> |
| <span class="sourceLineNo">277</span> * <p>An {@link IllegalArgumentException} is thrown if<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> * <code>val</code> contains a start delimeter "${" which is not<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> * balanced by a stop delimeter "}". </p><a name="line.279"></a> |
| <span class="sourceLineNo">280</span> *<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> * <p><b>Author</b> Avy Sharell</a></p><a name="line.281"></a> |
| <span class="sourceLineNo">282</span> *<a name="line.282"></a> |
| <span class="sourceLineNo">283</span> * @param val The string on which variable substitution is performed.<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> * @throws IllegalArgumentException if <code>val</code> is malformed.<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> */<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> public static String substVars(String val, Properties props) throws IllegalArgumentException {<a name="line.286"></a> |
| <span class="sourceLineNo">287</span><a name="line.287"></a> |
| <span class="sourceLineNo">288</span> StringBuilder sbuf = new StringBuilder();<a name="line.288"></a> |
| <span class="sourceLineNo">289</span><a name="line.289"></a> |
| <span class="sourceLineNo">290</span> int i = 0;<a name="line.290"></a> |
| <span class="sourceLineNo">291</span> int j, k;<a name="line.291"></a> |
| <span class="sourceLineNo">292</span><a name="line.292"></a> |
| <span class="sourceLineNo">293</span> while (true) {<a name="line.293"></a> |
| <span class="sourceLineNo">294</span> j = val.indexOf(DELIM_START, i);<a name="line.294"></a> |
| <span class="sourceLineNo">295</span> if (j == -1) {<a name="line.295"></a> |
| <span class="sourceLineNo">296</span> // no more variables<a name="line.296"></a> |
| <span class="sourceLineNo">297</span> if (i == 0) { // this is a simple string<a name="line.297"></a> |
| <span class="sourceLineNo">298</span> return val;<a name="line.298"></a> |
| <span class="sourceLineNo">299</span> } else { // add the tail string which contails no variables and return the result.<a name="line.299"></a> |
| <span class="sourceLineNo">300</span> sbuf.append(val.substring(i, val.length()));<a name="line.300"></a> |
| <span class="sourceLineNo">301</span> return sbuf.toString();<a name="line.301"></a> |
| <span class="sourceLineNo">302</span> }<a name="line.302"></a> |
| <span class="sourceLineNo">303</span> } else {<a name="line.303"></a> |
| <span class="sourceLineNo">304</span> sbuf.append(val.substring(i, j));<a name="line.304"></a> |
| <span class="sourceLineNo">305</span> k = val.indexOf(DELIM_STOP, j);<a name="line.305"></a> |
| <span class="sourceLineNo">306</span> if (k == -1) {<a name="line.306"></a> |
| <span class="sourceLineNo">307</span> throw new IllegalArgumentException('"' + val +<a name="line.307"></a> |
| <span class="sourceLineNo">308</span> "\" has no closing brace. Opening brace at position " + j<a name="line.308"></a> |
| <span class="sourceLineNo">309</span> + '.');<a name="line.309"></a> |
| <span class="sourceLineNo">310</span> } else {<a name="line.310"></a> |
| <span class="sourceLineNo">311</span> j += DELIM_START_LEN;<a name="line.311"></a> |
| <span class="sourceLineNo">312</span> String key = val.substring(j, k);<a name="line.312"></a> |
| <span class="sourceLineNo">313</span> // first try in System properties<a name="line.313"></a> |
| <span class="sourceLineNo">314</span> String replacement = getSystemProperty(key, null);<a name="line.314"></a> |
| <span class="sourceLineNo">315</span> // then try props parameter<a name="line.315"></a> |
| <span class="sourceLineNo">316</span> if (replacement == null && props != null) {<a name="line.316"></a> |
| <span class="sourceLineNo">317</span> replacement = props.getProperty(key);<a name="line.317"></a> |
| <span class="sourceLineNo">318</span> }<a name="line.318"></a> |
| <span class="sourceLineNo">319</span><a name="line.319"></a> |
| <span class="sourceLineNo">320</span> if (replacement != null) {<a name="line.320"></a> |
| <span class="sourceLineNo">321</span> // Do variable substitution on the replacement string<a name="line.321"></a> |
| <span class="sourceLineNo">322</span> // such that we can solve "Hello ${x2}" as "Hello p1"<a name="line.322"></a> |
| <span class="sourceLineNo">323</span> // the where the properties are<a name="line.323"></a> |
| <span class="sourceLineNo">324</span> // x1=p1<a name="line.324"></a> |
| <span class="sourceLineNo">325</span> // x2=${x1}<a name="line.325"></a> |
| <span class="sourceLineNo">326</span> String recursiveReplacement = substVars(replacement, props);<a name="line.326"></a> |
| <span class="sourceLineNo">327</span> sbuf.append(recursiveReplacement);<a name="line.327"></a> |
| <span class="sourceLineNo">328</span> }<a name="line.328"></a> |
| <span class="sourceLineNo">329</span> i = k + DELIM_STOP_LEN;<a name="line.329"></a> |
| <span class="sourceLineNo">330</span> }<a name="line.330"></a> |
| <span class="sourceLineNo">331</span> }<a name="line.331"></a> |
| <span class="sourceLineNo">332</span> }<a name="line.332"></a> |
| <span class="sourceLineNo">333</span> }<a name="line.333"></a> |
| <span class="sourceLineNo">334</span><a name="line.334"></a> |
| <span class="sourceLineNo">335</span> public static org.apache.logging.log4j.Level convertLevel(String level,<a name="line.335"></a> |
| <span class="sourceLineNo">336</span> org.apache.logging.log4j.Level defaultLevel) {<a name="line.336"></a> |
| <span class="sourceLineNo">337</span> Level l = toLevel(level, null);<a name="line.337"></a> |
| <span class="sourceLineNo">338</span> return l != null ? convertLevel(l) : defaultLevel;<a name="line.338"></a> |
| <span class="sourceLineNo">339</span> }<a name="line.339"></a> |
| <span class="sourceLineNo">340</span><a name="line.340"></a> |
| <span class="sourceLineNo">341</span> public static org.apache.logging.log4j.Level convertLevel(Level level) {<a name="line.341"></a> |
| <span class="sourceLineNo">342</span> if (level == null) {<a name="line.342"></a> |
| <span class="sourceLineNo">343</span> return org.apache.logging.log4j.Level.ERROR;<a name="line.343"></a> |
| <span class="sourceLineNo">344</span> }<a name="line.344"></a> |
| <span class="sourceLineNo">345</span> if (level.isGreaterOrEqual(Level.FATAL)) {<a name="line.345"></a> |
| <span class="sourceLineNo">346</span> return org.apache.logging.log4j.Level.FATAL;<a name="line.346"></a> |
| <span class="sourceLineNo">347</span> } else if (level.isGreaterOrEqual(Level.ERROR)) {<a name="line.347"></a> |
| <span class="sourceLineNo">348</span> return org.apache.logging.log4j.Level.ERROR;<a name="line.348"></a> |
| <span class="sourceLineNo">349</span> } else if (level.isGreaterOrEqual(Level.WARN)) {<a name="line.349"></a> |
| <span class="sourceLineNo">350</span> return org.apache.logging.log4j.Level.WARN;<a name="line.350"></a> |
| <span class="sourceLineNo">351</span> } else if (level.isGreaterOrEqual(Level.INFO)) {<a name="line.351"></a> |
| <span class="sourceLineNo">352</span> return org.apache.logging.log4j.Level.INFO;<a name="line.352"></a> |
| <span class="sourceLineNo">353</span> } else if (level.isGreaterOrEqual(Level.DEBUG)) {<a name="line.353"></a> |
| <span class="sourceLineNo">354</span> return org.apache.logging.log4j.Level.DEBUG;<a name="line.354"></a> |
| <span class="sourceLineNo">355</span> } else if (level.isGreaterOrEqual(Level.TRACE)) {<a name="line.355"></a> |
| <span class="sourceLineNo">356</span> return org.apache.logging.log4j.Level.TRACE;<a name="line.356"></a> |
| <span class="sourceLineNo">357</span> }<a name="line.357"></a> |
| <span class="sourceLineNo">358</span> return org.apache.logging.log4j.Level.ALL;<a name="line.358"></a> |
| <span class="sourceLineNo">359</span> }<a name="line.359"></a> |
| <span class="sourceLineNo">360</span><a name="line.360"></a> |
| <span class="sourceLineNo">361</span> public static Level convertLevel(org.apache.logging.log4j.Level level) {<a name="line.361"></a> |
| <span class="sourceLineNo">362</span> if (level == null) {<a name="line.362"></a> |
| <span class="sourceLineNo">363</span> return Level.ERROR;<a name="line.363"></a> |
| <span class="sourceLineNo">364</span> }<a name="line.364"></a> |
| <span class="sourceLineNo">365</span> switch (level.getStandardLevel()) {<a name="line.365"></a> |
| <span class="sourceLineNo">366</span> case FATAL:<a name="line.366"></a> |
| <span class="sourceLineNo">367</span> return Level.FATAL;<a name="line.367"></a> |
| <span class="sourceLineNo">368</span> case WARN:<a name="line.368"></a> |
| <span class="sourceLineNo">369</span> return Level.WARN;<a name="line.369"></a> |
| <span class="sourceLineNo">370</span> case INFO:<a name="line.370"></a> |
| <span class="sourceLineNo">371</span> return Level.INFO;<a name="line.371"></a> |
| <span class="sourceLineNo">372</span> case DEBUG:<a name="line.372"></a> |
| <span class="sourceLineNo">373</span> return Level.DEBUG;<a name="line.373"></a> |
| <span class="sourceLineNo">374</span> case TRACE:<a name="line.374"></a> |
| <span class="sourceLineNo">375</span> return Level.TRACE;<a name="line.375"></a> |
| <span class="sourceLineNo">376</span> case ALL:<a name="line.376"></a> |
| <span class="sourceLineNo">377</span> return Level.ALL;<a name="line.377"></a> |
| <span class="sourceLineNo">378</span> case OFF:<a name="line.378"></a> |
| <span class="sourceLineNo">379</span> return Level.OFF;<a name="line.379"></a> |
| <span class="sourceLineNo">380</span> default:<a name="line.380"></a> |
| <span class="sourceLineNo">381</span> return Level.ERROR;<a name="line.381"></a> |
| <span class="sourceLineNo">382</span> }<a name="line.382"></a> |
| <span class="sourceLineNo">383</span> }<a name="line.383"></a> |
| <span class="sourceLineNo">384</span><a name="line.384"></a> |
| <span class="sourceLineNo">385</span> /**<a name="line.385"></a> |
| <span class="sourceLineNo">386</span> * Find the value corresponding to <code>key</code> in<a name="line.386"></a> |
| <span class="sourceLineNo">387</span> * <code>props</code>. Then perform variable substitution on the<a name="line.387"></a> |
| <span class="sourceLineNo">388</span> * found value.<a name="line.388"></a> |
| <span class="sourceLineNo">389</span> */<a name="line.389"></a> |
| <span class="sourceLineNo">390</span> public static String findAndSubst(String key, Properties props) {<a name="line.390"></a> |
| <span class="sourceLineNo">391</span> String value = props.getProperty(key);<a name="line.391"></a> |
| <span class="sourceLineNo">392</span> if (value == null) {<a name="line.392"></a> |
| <span class="sourceLineNo">393</span> return null;<a name="line.393"></a> |
| <span class="sourceLineNo">394</span> }<a name="line.394"></a> |
| <span class="sourceLineNo">395</span><a name="line.395"></a> |
| <span class="sourceLineNo">396</span> try {<a name="line.396"></a> |
| <span class="sourceLineNo">397</span> return substVars(value, props);<a name="line.397"></a> |
| <span class="sourceLineNo">398</span> } catch (IllegalArgumentException e) {<a name="line.398"></a> |
| <span class="sourceLineNo">399</span> LOGGER.error("Bad option value [{}].", value, e);<a name="line.399"></a> |
| <span class="sourceLineNo">400</span> return value;<a name="line.400"></a> |
| <span class="sourceLineNo">401</span> }<a name="line.401"></a> |
| <span class="sourceLineNo">402</span> }<a name="line.402"></a> |
| <span class="sourceLineNo">403</span> <a name="line.403"></a> |
| <span class="sourceLineNo">404</span> private static class CharMap {<a name="line.404"></a> |
| <span class="sourceLineNo">405</span> final char key;<a name="line.405"></a> |
| <span class="sourceLineNo">406</span> final char replacement;<a name="line.406"></a> |
| <span class="sourceLineNo">407</span> <a name="line.407"></a> |
| <span class="sourceLineNo">408</span> public CharMap(char key, char replacement) {<a name="line.408"></a> |
| <span class="sourceLineNo">409</span> this.key = key;<a name="line.409"></a> |
| <span class="sourceLineNo">410</span> this.replacement = replacement;<a name="line.410"></a> |
| <span class="sourceLineNo">411</span> }<a name="line.411"></a> |
| <span class="sourceLineNo">412</span> }<a name="line.412"></a> |
| <span class="sourceLineNo">413</span>}<a name="line.413"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
