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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>package org.apache.logging.log4j.core.pattern;<a name="line.17"></a> |
| <span class="sourceLineNo">018</span><a name="line.18"></a> |
| <span class="sourceLineNo">019</span>import org.apache.logging.log4j.core.LogEvent;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import org.apache.logging.log4j.core.impl.LocationAware;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>/**<a name="line.22"></a> |
| <span class="sourceLineNo">023</span> *<a name="line.23"></a> |
| <span class="sourceLineNo">024</span> */<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>public class PatternFormatter {<a name="line.25"></a> |
| <span class="sourceLineNo">026</span> private final LogEventPatternConverter converter;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span> private final FormattingInfo field;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span> private final boolean skipFormattingInfo;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span><a name="line.29"></a> |
| <span class="sourceLineNo">030</span> public PatternFormatter(final LogEventPatternConverter converter, final FormattingInfo field) {<a name="line.30"></a> |
| <span class="sourceLineNo">031</span> this.converter = converter;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span> this.field = field;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span> this.skipFormattingInfo = field == FormattingInfo.getDefault();<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> }<a name="line.34"></a> |
| <span class="sourceLineNo">035</span><a name="line.35"></a> |
| <span class="sourceLineNo">036</span> public void format(final LogEvent event, final StringBuilder buf) {<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> if (skipFormattingInfo) {<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> converter.format(event, buf);<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> } else {<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> formatWithInfo(event, buf);<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> }<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> }<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> private void formatWithInfo(final LogEvent event, final StringBuilder buf) {<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> final int startField = buf.length();<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> converter.format(event, buf);<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> field.format(startField, buf);<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> }<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> public LogEventPatternConverter getConverter() {<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> return converter;<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> }<a name="line.51"></a> |
| <span class="sourceLineNo">052</span><a name="line.52"></a> |
| <span class="sourceLineNo">053</span> public FormattingInfo getFormattingInfo() {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> return field;<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> }<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> * Normally pattern formatters are not meant to handle Exceptions although few pattern formatters might.<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * <p><a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * By examining the return values for this method, the containing layout will determine whether it handles<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * throwables or not.<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> * </p><a name="line.62"></a> |
| <span class="sourceLineNo">063</span> *<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> * @return true if this PatternConverter handles throwables<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> */<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> public boolean handlesThrowable() {<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> return converter.handlesThrowable();<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> }<a name="line.68"></a> |
| <span class="sourceLineNo">069</span><a name="line.69"></a> |
| <span class="sourceLineNo">070</span> /**<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> * Most pattern formatters do not use location information. When they do they should return true here<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * so that the logging system can efficiently capture it.<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> * @return true if location information is required.<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> */<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> public boolean requiresLocation() {<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> return converter instanceof LocationAware && ((LocationAware) converter).requiresLocation();<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> /**<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> * Returns a String suitable for debugging.<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> *<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> * @return a String suitable for debugging.<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> */<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> @Override<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public String toString() {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> final StringBuilder sb = new StringBuilder();<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> sb.append(super.toString());<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> sb.append("[converter=");<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> sb.append(converter);<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> sb.append(", field=");<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> sb.append(field);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> sb.append(']');<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> return sb.toString();<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span>}<a name="line.95"></a> |
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