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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 or more<a name="line.2"></a> |
| <FONT color="green">003</FONT> * contributor license agreements. See the NOTICE file distributed with<a name="line.3"></a> |
| <FONT color="green">004</FONT> * this work for additional information regarding copyright ownership.<a name="line.4"></a> |
| <FONT color="green">005</FONT> * The ASF licenses this file to You under the Apache license, Version 2.0<a name="line.5"></a> |
| <FONT color="green">006</FONT> * (the "License"); you may not use this file except in compliance with<a name="line.6"></a> |
| <FONT color="green">007</FONT> * the License. You may obtain a copy of the License at<a name="line.7"></a> |
| <FONT color="green">008</FONT> *<a name="line.8"></a> |
| <FONT color="green">009</FONT> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a> |
| <FONT color="green">010</FONT> *<a name="line.10"></a> |
| <FONT color="green">011</FONT> * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a> |
| <FONT color="green">012</FONT> * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a> |
| <FONT color="green">013</FONT> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a> |
| <FONT color="green">014</FONT> * See the license for the specific language governing permissions and<a name="line.14"></a> |
| <FONT color="green">015</FONT> * limitations under the license.<a name="line.15"></a> |
| <FONT color="green">016</FONT> */<a name="line.16"></a> |
| <FONT color="green">017</FONT> package org.apache.logging.log4j.core.lookup;<a name="line.17"></a> |
| <FONT color="green">018</FONT> <a name="line.18"></a> |
| <FONT color="green">019</FONT> import org.apache.logging.log4j.core.LogEvent;<a name="line.19"></a> |
| <FONT color="green">020</FONT> import org.apache.logging.log4j.core.config.plugins.Plugin;<a name="line.20"></a> |
| <FONT color="green">021</FONT> import org.apache.logging.log4j.message.MapMessage;<a name="line.21"></a> |
| <FONT color="green">022</FONT> <a name="line.22"></a> |
| <FONT color="green">023</FONT> import java.util.Map;<a name="line.23"></a> |
| <FONT color="green">024</FONT> <a name="line.24"></a> |
| <FONT color="green">025</FONT> /**<a name="line.25"></a> |
| <FONT color="green">026</FONT> * The basis for a lookup based on a Map.<a name="line.26"></a> |
| <FONT color="green">027</FONT> * @param <V> The type of object contained in the Map.<a name="line.27"></a> |
| <FONT color="green">028</FONT> */<a name="line.28"></a> |
| <FONT color="green">029</FONT> @Plugin(name = "map", type = "Lookup")<a name="line.29"></a> |
| <FONT color="green">030</FONT> public class MapLookup<V> implements StrLookup<V> {<a name="line.30"></a> |
| <FONT color="green">031</FONT> /**<a name="line.31"></a> |
| <FONT color="green">032</FONT> * Map keys are variable names and value.<a name="line.32"></a> |
| <FONT color="green">033</FONT> */<a name="line.33"></a> |
| <FONT color="green">034</FONT> private final Map<String, V> map;<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> * Creates a new instance backed by a Map. Used by the default lookup.<a name="line.37"></a> |
| <FONT color="green">038</FONT> *<a name="line.38"></a> |
| <FONT color="green">039</FONT> * @param map the map of keys to values, may be null<a name="line.39"></a> |
| <FONT color="green">040</FONT> */<a name="line.40"></a> |
| <FONT color="green">041</FONT> public MapLookup(Map<String, V> map) {<a name="line.41"></a> |
| <FONT color="green">042</FONT> this.map = map;<a name="line.42"></a> |
| <FONT color="green">043</FONT> }<a name="line.43"></a> |
| <FONT color="green">044</FONT> <a name="line.44"></a> |
| <FONT color="green">045</FONT> /**<a name="line.45"></a> |
| <FONT color="green">046</FONT> * Constructor when used directly as a plugin.<a name="line.46"></a> |
| <FONT color="green">047</FONT> */<a name="line.47"></a> |
| <FONT color="green">048</FONT> public MapLookup() {<a name="line.48"></a> |
| <FONT color="green">049</FONT> this.map = null;<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> /**<a name="line.52"></a> |
| <FONT color="green">053</FONT> * Looks up a String key to a String value using the map.<a name="line.53"></a> |
| <FONT color="green">054</FONT> * <p/><a name="line.54"></a> |
| <FONT color="green">055</FONT> * If the map is null, then null is returned.<a name="line.55"></a> |
| <FONT color="green">056</FONT> * The map result object is converted to a string using toString().<a name="line.56"></a> |
| <FONT color="green">057</FONT> *<a name="line.57"></a> |
| <FONT color="green">058</FONT> * @param key the key to be looked up, may be null<a name="line.58"></a> |
| <FONT color="green">059</FONT> * @return the matching value, null if no match<a name="line.59"></a> |
| <FONT color="green">060</FONT> */<a name="line.60"></a> |
| <FONT color="green">061</FONT> public String lookup(String key) {<a name="line.61"></a> |
| <FONT color="green">062</FONT> if (map == null) {<a name="line.62"></a> |
| <FONT color="green">063</FONT> return null;<a name="line.63"></a> |
| <FONT color="green">064</FONT> }<a name="line.64"></a> |
| <FONT color="green">065</FONT> Object obj = map.get(key);<a name="line.65"></a> |
| <FONT color="green">066</FONT> if (obj == null) {<a name="line.66"></a> |
| <FONT color="green">067</FONT> return null;<a name="line.67"></a> |
| <FONT color="green">068</FONT> }<a name="line.68"></a> |
| <FONT color="green">069</FONT> return obj.toString();<a name="line.69"></a> |
| <FONT color="green">070</FONT> }<a name="line.70"></a> |
| <FONT color="green">071</FONT> <a name="line.71"></a> |
| <FONT color="green">072</FONT> public String lookup(LogEvent event, String key) {<a name="line.72"></a> |
| <FONT color="green">073</FONT> if (map == null && !(event.getMessage() instanceof MapMessage)) {<a name="line.73"></a> |
| <FONT color="green">074</FONT> return null;<a name="line.74"></a> |
| <FONT color="green">075</FONT> }<a name="line.75"></a> |
| <FONT color="green">076</FONT> if (map != null && map.containsKey(key)) {<a name="line.76"></a> |
| <FONT color="green">077</FONT> Object obj = map.get(key);<a name="line.77"></a> |
| <FONT color="green">078</FONT> if (obj != null) {<a name="line.78"></a> |
| <FONT color="green">079</FONT> return obj.toString();<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> if (event.getMessage() instanceof MapMessage) {<a name="line.82"></a> |
| <FONT color="green">083</FONT> return ((MapMessage) event.getMessage()).get(key);<a name="line.83"></a> |
| <FONT color="green">084</FONT> }<a name="line.84"></a> |
| <FONT color="green">085</FONT> return null;<a name="line.85"></a> |
| <FONT color="green">086</FONT> }<a name="line.86"></a> |
| <FONT color="green">087</FONT> }<a name="line.87"></a> |
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