| <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> |
| <html lang="en"> |
| <head> |
| <title>Source code</title> |
| <link rel="stylesheet" type="text/css" href="../../../../../../stylesheet.css" title="Style"> |
| </head> |
| <body> |
| <div class="sourceContainer"> |
| <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>package org.apache.logging.log4j.util;<a name="line.17"></a> |
| <span class="sourceLineNo">018</span><a name="line.18"></a> |
| <span class="sourceLineNo">019</span>import java.util.Map;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span><a name="line.20"></a> |
| <span class="sourceLineNo">021</span>/**<a name="line.21"></a> |
| <span class="sourceLineNo">022</span> * PropertySource implementation that uses environment variables as a source.<a name="line.22"></a> |
| <span class="sourceLineNo">023</span> * All environment variables must begin with {@code LOG4J_} so as not to<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> * conflict with other variables. Normalized environment variables follow a<a name="line.24"></a> |
| <span class="sourceLineNo">025</span> * scheme like this: {@code log4j2.fooBarProperty} would normalize to<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> * {@code LOG4J_FOO_BAR_PROPERTY}.<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> *<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> * @since 2.10.0<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> */<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>public class EnvironmentPropertySource implements PropertySource {<a name="line.30"></a> |
| <span class="sourceLineNo">031</span><a name="line.31"></a> |
| <span class="sourceLineNo">032</span> private static final String PREFIX = "LOG4J_";<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> private static final int DEFAULT_PRIORITY = -100;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span><a name="line.34"></a> |
| <span class="sourceLineNo">035</span> @Override<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> public int getPriority() {<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> return DEFAULT_PRIORITY;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> }<a name="line.38"></a> |
| <span class="sourceLineNo">039</span><a name="line.39"></a> |
| <span class="sourceLineNo">040</span> @Override<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> public void forEach(final BiConsumer<String, String> action) {<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> final Map<String, String> getenv;<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> try {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> getenv = System.getenv();<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> } catch (final SecurityException e) {<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> // There is no status logger yet.<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> LowLevelLogUtil.logException(<a name="line.47"></a> |
| <span class="sourceLineNo">048</span> "The system environment variables are not available to Log4j due to security restrictions: " + e,<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> e);<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> return;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> }<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> for (final Map.Entry<String, String> entry : getenv.entrySet()) {<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> final String key = entry.getKey();<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> if (key.startsWith(PREFIX)) {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> action.accept(key.substring(PREFIX.length()), entry.getValue());<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> }<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> }<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> }<a name="line.58"></a> |
| <span class="sourceLineNo">059</span><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> @Override<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> public CharSequence getNormalForm(final Iterable<? extends CharSequence> tokens) {<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> final StringBuilder sb = new StringBuilder("LOG4J");<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> for (final CharSequence token : tokens) {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> sb.append('_');<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> for (int i = 0; i < token.length(); i++) {<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> sb.append(Character.toUpperCase(token.charAt(i)));<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> }<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> }<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> return sb.toString();<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> |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| |
| </pre> |
| </div> |
| </body> |
| </html> |