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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.log4j;<a name="line.17"></a>
<span class="sourceLineNo">018</span><a name="line.18"></a>
<span class="sourceLineNo">019</span>import org.apache.log4j.spi.ErrorHandler;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import org.apache.log4j.spi.Filter;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import org.apache.log4j.spi.LoggingEvent;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.apache.log4j.spi.OptionHandler;<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> * The base class for Appenders in Log4j 1. Appenders constructed using this are ignored in Log4j 2.<a name="line.25"></a>
<span class="sourceLineNo">026</span> */<a name="line.26"></a>
<span class="sourceLineNo">027</span>public abstract class AppenderSkeleton implements Appender, OptionHandler {<a name="line.27"></a>
<span class="sourceLineNo">028</span><a name="line.28"></a>
<span class="sourceLineNo">029</span> protected Layout layout;<a name="line.29"></a>
<span class="sourceLineNo">030</span><a name="line.30"></a>
<span class="sourceLineNo">031</span> protected String name;<a name="line.31"></a>
<span class="sourceLineNo">032</span><a name="line.32"></a>
<span class="sourceLineNo">033</span> protected Priority threshold;<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span> protected ErrorHandler errorHandler = new NoOpErrorHandler();<a name="line.35"></a>
<span class="sourceLineNo">036</span><a name="line.36"></a>
<span class="sourceLineNo">037</span> protected Filter headFilter;<a name="line.37"></a>
<span class="sourceLineNo">038</span><a name="line.38"></a>
<span class="sourceLineNo">039</span> protected Filter tailFilter;<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span> protected boolean closed = false;<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span> /**<a name="line.43"></a>
<span class="sourceLineNo">044</span> * Create new instance.<a name="line.44"></a>
<span class="sourceLineNo">045</span> */<a name="line.45"></a>
<span class="sourceLineNo">046</span> public AppenderSkeleton() {<a name="line.46"></a>
<span class="sourceLineNo">047</span> super();<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> protected AppenderSkeleton(final boolean isActive) {<a name="line.50"></a>
<span class="sourceLineNo">051</span> super();<a name="line.51"></a>
<span class="sourceLineNo">052</span> }<a name="line.52"></a>
<span class="sourceLineNo">053</span><a name="line.53"></a>
<span class="sourceLineNo">054</span> @Override<a name="line.54"></a>
<span class="sourceLineNo">055</span> public void activateOptions() {<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> @Override<a name="line.58"></a>
<span class="sourceLineNo">059</span> public void addFilter(final Filter newFilter) {<a name="line.59"></a>
<span class="sourceLineNo">060</span> if(headFilter == null) {<a name="line.60"></a>
<span class="sourceLineNo">061</span> headFilter = tailFilter = newFilter;<a name="line.61"></a>
<span class="sourceLineNo">062</span> } else {<a name="line.62"></a>
<span class="sourceLineNo">063</span> tailFilter.setNext(newFilter);<a name="line.63"></a>
<span class="sourceLineNo">064</span> tailFilter = newFilter;<a name="line.64"></a>
<span class="sourceLineNo">065</span> }<a name="line.65"></a>
<span class="sourceLineNo">066</span> }<a name="line.66"></a>
<span class="sourceLineNo">067</span><a name="line.67"></a>
<span class="sourceLineNo">068</span> protected abstract void append(LoggingEvent event);<a name="line.68"></a>
<span class="sourceLineNo">069</span><a name="line.69"></a>
<span class="sourceLineNo">070</span> @Override<a name="line.70"></a>
<span class="sourceLineNo">071</span> public void clearFilters() {<a name="line.71"></a>
<span class="sourceLineNo">072</span> headFilter = tailFilter = null;<a name="line.72"></a>
<span class="sourceLineNo">073</span> }<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
<span class="sourceLineNo">075</span> @Override<a name="line.75"></a>
<span class="sourceLineNo">076</span> public void finalize() {<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> @Override<a name="line.79"></a>
<span class="sourceLineNo">080</span> public ErrorHandler getErrorHandler() {<a name="line.80"></a>
<span class="sourceLineNo">081</span> return this.errorHandler;<a name="line.81"></a>
<span class="sourceLineNo">082</span> }<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 Filter getFilter() {<a name="line.85"></a>
<span class="sourceLineNo">086</span> return headFilter;<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> public final Filter getFirstFilter() {<a name="line.89"></a>
<span class="sourceLineNo">090</span> return headFilter;<a name="line.90"></a>
<span class="sourceLineNo">091</span> }<a name="line.91"></a>
<span class="sourceLineNo">092</span><a name="line.92"></a>
<span class="sourceLineNo">093</span> @Override<a name="line.93"></a>
<span class="sourceLineNo">094</span> public Layout getLayout() {<a name="line.94"></a>
<span class="sourceLineNo">095</span> return layout;<a name="line.95"></a>
<span class="sourceLineNo">096</span> }<a name="line.96"></a>
<span class="sourceLineNo">097</span><a name="line.97"></a>
<span class="sourceLineNo">098</span> @Override<a name="line.98"></a>
<span class="sourceLineNo">099</span> public final String getName() {<a name="line.99"></a>
<span class="sourceLineNo">100</span> return this.name;<a name="line.100"></a>
<span class="sourceLineNo">101</span> }<a name="line.101"></a>
<span class="sourceLineNo">102</span><a name="line.102"></a>
<span class="sourceLineNo">103</span> public Priority getThreshold() {<a name="line.103"></a>
<span class="sourceLineNo">104</span> return threshold;<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> public boolean isAsSevereAsThreshold(final Priority priority) {<a name="line.107"></a>
<span class="sourceLineNo">108</span> return ((threshold == null) || priority.isGreaterOrEqual(threshold));<a name="line.108"></a>
<span class="sourceLineNo">109</span> }<a name="line.109"></a>
<span class="sourceLineNo">110</span><a name="line.110"></a>
<span class="sourceLineNo">111</span> /**<a name="line.111"></a>
<span class="sourceLineNo">112</span> * This method is never going to be called in Log4j 2 so there isn't much point in having any code in it.<a name="line.112"></a>
<span class="sourceLineNo">113</span> * @param event The LoggingEvent.<a name="line.113"></a>
<span class="sourceLineNo">114</span> */<a name="line.114"></a>
<span class="sourceLineNo">115</span> @Override<a name="line.115"></a>
<span class="sourceLineNo">116</span> public void doAppend(final LoggingEvent event) {<a name="line.116"></a>
<span class="sourceLineNo">117</span> append(event);<a name="line.117"></a>
<span class="sourceLineNo">118</span> }<a name="line.118"></a>
<span class="sourceLineNo">119</span><a name="line.119"></a>
<span class="sourceLineNo">120</span> /**<a name="line.120"></a>
<span class="sourceLineNo">121</span> * Set the {@link ErrorHandler} for this Appender.<a name="line.121"></a>
<span class="sourceLineNo">122</span> *<a name="line.122"></a>
<span class="sourceLineNo">123</span> * @since 0.9.0<a name="line.123"></a>
<span class="sourceLineNo">124</span> */<a name="line.124"></a>
<span class="sourceLineNo">125</span> @Override<a name="line.125"></a>
<span class="sourceLineNo">126</span> public synchronized void setErrorHandler(final ErrorHandler eh) {<a name="line.126"></a>
<span class="sourceLineNo">127</span> if (eh != null) {<a name="line.127"></a>
<span class="sourceLineNo">128</span> this.errorHandler = eh;<a name="line.128"></a>
<span class="sourceLineNo">129</span> }<a name="line.129"></a>
<span class="sourceLineNo">130</span> }<a name="line.130"></a>
<span class="sourceLineNo">131</span><a name="line.131"></a>
<span class="sourceLineNo">132</span> @Override<a name="line.132"></a>
<span class="sourceLineNo">133</span> public void setLayout(final Layout layout) {<a name="line.133"></a>
<span class="sourceLineNo">134</span> this.layout = layout;<a name="line.134"></a>
<span class="sourceLineNo">135</span> }<a name="line.135"></a>
<span class="sourceLineNo">136</span><a name="line.136"></a>
<span class="sourceLineNo">137</span> @Override<a name="line.137"></a>
<span class="sourceLineNo">138</span> public void setName(final String name) {<a name="line.138"></a>
<span class="sourceLineNo">139</span> this.name = name;<a name="line.139"></a>
<span class="sourceLineNo">140</span> }<a name="line.140"></a>
<span class="sourceLineNo">141</span><a name="line.141"></a>
<span class="sourceLineNo">142</span> public void setThreshold(final Priority threshold) {<a name="line.142"></a>
<span class="sourceLineNo">143</span> this.threshold = threshold;<a name="line.143"></a>
<span class="sourceLineNo">144</span> }<a name="line.144"></a>
<span class="sourceLineNo">145</span><a name="line.145"></a>
<span class="sourceLineNo">146</span> public static class NoOpErrorHandler implements ErrorHandler {<a name="line.146"></a>
<span class="sourceLineNo">147</span> @Override<a name="line.147"></a>
<span class="sourceLineNo">148</span> public void setLogger(final Logger logger) {<a name="line.148"></a>
<span class="sourceLineNo">149</span><a name="line.149"></a>
<span class="sourceLineNo">150</span> }<a name="line.150"></a>
<span class="sourceLineNo">151</span><a name="line.151"></a>
<span class="sourceLineNo">152</span> @Override<a name="line.152"></a>
<span class="sourceLineNo">153</span> public void error(final String message, final Exception e, final int errorCode) {<a name="line.153"></a>
<span class="sourceLineNo">154</span><a name="line.154"></a>
<span class="sourceLineNo">155</span> }<a name="line.155"></a>
<span class="sourceLineNo">156</span><a name="line.156"></a>
<span class="sourceLineNo">157</span> @Override<a name="line.157"></a>
<span class="sourceLineNo">158</span> public void error(final String message) {<a name="line.158"></a>
<span class="sourceLineNo">159</span><a name="line.159"></a>
<span class="sourceLineNo">160</span> }<a name="line.160"></a>
<span class="sourceLineNo">161</span><a name="line.161"></a>
<span class="sourceLineNo">162</span> @Override<a name="line.162"></a>
<span class="sourceLineNo">163</span> public void error(final String message, final Exception e, final int errorCode, final LoggingEvent event) {<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> @Override<a name="line.167"></a>
<span class="sourceLineNo">168</span> public void setAppender(final Appender appender) {<a name="line.168"></a>
<span class="sourceLineNo">169</span><a name="line.169"></a>
<span class="sourceLineNo">170</span> }<a name="line.170"></a>
<span class="sourceLineNo">171</span><a name="line.171"></a>
<span class="sourceLineNo">172</span> @Override<a name="line.172"></a>
<span class="sourceLineNo">173</span> public void setBackupAppender(final Appender appender) {<a name="line.173"></a>
<span class="sourceLineNo">174</span><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>}<a name="line.177"></a>
</pre>
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