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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.layout;<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.util.Constants;<a name="line.19"></a> |
| <span class="sourceLineNo">020</span>import org.apache.logging.log4j.status.StatusLogger;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.nio.CharBuffer;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.nio.charset.Charset;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.nio.charset.CharsetEncoder;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.nio.charset.CodingErrorAction;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.Objects;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>/**<a name="line.28"></a> |
| <span class="sourceLineNo">029</span> * Encoder for StringBuilders that locks on the ByteBufferDestination.<a name="line.29"></a> |
| <span class="sourceLineNo">030</span> */<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>public class LockingStringBuilderEncoder implements Encoder<StringBuilder> {<a name="line.31"></a> |
| <span class="sourceLineNo">032</span><a name="line.32"></a> |
| <span class="sourceLineNo">033</span> private final Charset charset;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span> private final CharsetEncoder charsetEncoder;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> private final CharBuffer cachedCharBuffer;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span> public LockingStringBuilderEncoder(final Charset charset) {<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> this(charset, Constants.ENCODER_CHAR_BUFFER_SIZE);<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> }<a name="line.39"></a> |
| <span class="sourceLineNo">040</span><a name="line.40"></a> |
| <span class="sourceLineNo">041</span> public LockingStringBuilderEncoder(final Charset charset, final int charBufferSize) {<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> this.charset = Objects.requireNonNull(charset, "charset");<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> this.charsetEncoder = charset.newEncoder().onMalformedInput(CodingErrorAction.REPLACE)<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> .onUnmappableCharacter(CodingErrorAction.REPLACE);<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> this.cachedCharBuffer = CharBuffer.wrap(new char[charBufferSize]);<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> }<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> private CharBuffer getCharBuffer() {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> return cachedCharBuffer;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> }<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> @Override<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> public void encode(final StringBuilder source, final ByteBufferDestination destination) {<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> try {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> // This synchronized is needed to be able to call destination.getByteBuffer()<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> synchronized (destination) {<a name="line.56"></a> |
| <span class="sourceLineNo">057</span> TextEncoderHelper.encodeText(charsetEncoder, cachedCharBuffer, destination.getByteBuffer(), source,<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> destination);<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> }<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> } catch (final Exception ex) {<a name="line.60"></a> |
| <span class="sourceLineNo">061</span> logEncodeTextException(ex, source, destination);<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> TextEncoderHelper.encodeTextFallBack(charset, source, destination);<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> }<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><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> private void logEncodeTextException(final Exception ex, final StringBuilder text,<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> final ByteBufferDestination destination) {<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> StatusLogger.getLogger().error("Recovering from LockingStringBuilderEncoder.encode('{}') error", text, ex);<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> |
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