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<div class="subTitle">org.apache.logging.log4j.core.async</div>
<h2 title="Class AsyncLogger" class="title">Class AsyncLogger</h2>
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<li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
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<ul class="inheritance">
<li>org.apache.logging.log4j.spi.AbstractLogger</li>
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<ul class="inheritance">
<li><a href="../../../../../../org/apache/logging/log4j/core/Logger.html" title="class in org.apache.logging.log4j.core">org.apache.logging.log4j.core.Logger</a></li>
<li>
<ul class="inheritance">
<li>org.apache.logging.log4j.core.async.AsyncLogger</li>
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<dt>All Implemented Interfaces:</dt>
<dd>com.lmax.disruptor.EventTranslatorVararg&lt;<a href="../../../../../../org/apache/logging/log4j/core/async/RingBufferLogEvent.html" title="class in org.apache.logging.log4j.core.async">RingBufferLogEvent</a>&gt;, <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a>, org.apache.logging.log4j.Logger, org.apache.logging.log4j.spi.ExtendedLogger, org.apache.logging.log4j.spi.LocationAwareLogger, org.apache.logging.log4j.util.Supplier&lt;<a href="../../../../../../org/apache/logging/log4j/core/config/LoggerConfig.html" title="class in org.apache.logging.log4j.core.config">LoggerConfig</a>&gt;</dd>
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<pre>public class <a href="../../../../../../src-html/org/apache/logging/log4j/core/async/AsyncLogger.html#line.67">AsyncLogger</a>
extends <a href="../../../../../../org/apache/logging/log4j/core/Logger.html" title="class in org.apache.logging.log4j.core">Logger</a>
implements com.lmax.disruptor.EventTranslatorVararg&lt;<a href="../../../../../../org/apache/logging/log4j/core/async/RingBufferLogEvent.html" title="class in org.apache.logging.log4j.core.async">RingBufferLogEvent</a>&gt;</pre>
<div class="block">AsyncLogger is a logger designed for high throughput and low latency logging. It does not perform any I/O in the
calling (application) thread, but instead hands off the work to another thread as soon as possible. The actual
logging is performed in the background thread. It uses the LMAX Disruptor library for inter-thread communication. (<a
href="http://lmax-exchange.github.com/disruptor/" >http://lmax-exchange.github.com/disruptor/</a>)
<p>
To use AsyncLogger, specify the System property
<code>-DLog4jContextSelector=org.apache.logging.log4j.core.async.AsyncLoggerContextSelector</code> before you obtain a
Logger, and all Loggers returned by LogManager.getLogger will be AsyncLoggers.
<p>
Note that for performance reasons, this logger does not include source location by default. You need to specify
<code>includeLocation="true"</code> in the configuration or any %class, %location or %line conversion patterns in your
log4j.xml configuration will produce either a "?" character or no output at all.
<p>
For best performance, use AsyncLogger with the RandomAccessFileAppender or RollingRandomAccessFileAppender, with
immediateFlush=false. These appenders have built-in support for the batching mechanism used by the Disruptor library,
and they will flush to disk at the end of each batch. This means that even with immediateFlush=false, there will
never be any items left in the buffer; all log events will all be written to disk in a very efficient manner.</div>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../serialized-form.html#org.apache.logging.log4j.core.async.AsyncLogger">Serialized Form</a></dd>
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<code><a href="../../../../../../org/apache/logging/log4j/core/Logger.LoggerProxy.html" title="class in org.apache.logging.log4j.core">Logger.LoggerProxy</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.PrivateConfig.html" title="class in org.apache.logging.log4j.core">Logger.PrivateConfig</a></code></li>
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<code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html#privateConfig">privateConfig</a></code></li>
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<h3>Fields inherited from class&nbsp;org.apache.logging.log4j.spi.AbstractLogger</h3>
<code>CATCHING_MARKER, DEFAULT_FLOW_MESSAGE_FACTORY_CLASS, DEFAULT_MESSAGE_FACTORY_CLASS, ENTRY_MARKER, EXCEPTION_MARKER, EXIT_MARKER, FLOW_MARKER, logBuilder, name, THROWING_MARKER</code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/async/AsyncLogger.html#AsyncLogger-org.apache.logging.log4j.core.LoggerContext-java.lang.String-org.apache.logging.log4j.message.MessageFactory-org.apache.logging.log4j.core.async.AsyncLoggerDisruptor-">AsyncLogger</a></span>(<a href="../../../../../../org/apache/logging/log4j/core/LoggerContext.html" title="class in org.apache.logging.log4j.core">LoggerContext</a>&nbsp;context,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
org.apache.logging.log4j.message.MessageFactory&nbsp;messageFactory,
org.apache.logging.log4j.core.async.AsyncLoggerDisruptor&nbsp;loggerDisruptor)</code>
<div class="block">Constructs an <code>AsyncLogger</code> with the specified context, name and message factory.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/async/AsyncLogger.html#actualAsyncLog-org.apache.logging.log4j.core.async.RingBufferLogEvent-">actualAsyncLog</a></span>(<a href="../../../../../../org/apache/logging/log4j/core/async/RingBufferLogEvent.html" title="class in org.apache.logging.log4j.core.async">RingBufferLogEvent</a>&nbsp;event)</code>
<div class="block">This method is called by the EventHandler that processes the RingBufferLogEvent in a separate thread.</div>
</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/async/AsyncLogger.html#log-org.apache.logging.log4j.Level-org.apache.logging.log4j.Marker-java.lang.String-java.lang.StackTraceElement-org.apache.logging.log4j.message.Message-java.lang.Throwable-">log</a></span>(org.apache.logging.log4j.Level&nbsp;level,
org.apache.logging.log4j.Marker&nbsp;marker,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;fqcn,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StackTraceElement.html?is-external=true" title="class or interface in java.lang">StackTraceElement</a>&nbsp;location,
org.apache.logging.log4j.message.Message&nbsp;message,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;throwable)</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/async/AsyncLogger.html#logMessage-java.lang.String-org.apache.logging.log4j.Level-org.apache.logging.log4j.Marker-org.apache.logging.log4j.message.Message-java.lang.Throwable-">logMessage</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;fqcn,
org.apache.logging.log4j.Level&nbsp;level,
org.apache.logging.log4j.Marker&nbsp;marker,
org.apache.logging.log4j.message.Message&nbsp;message,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;thrown)</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/async/AsyncLogger.html#translateTo-org.apache.logging.log4j.core.async.RingBufferLogEvent-long-java.lang.Object...-">translateTo</a></span>(<a href="../../../../../../org/apache/logging/log4j/core/async/RingBufferLogEvent.html" title="class in org.apache.logging.log4j.core.async">RingBufferLogEvent</a>&nbsp;event,
long&nbsp;sequence,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;args)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/logging/log4j/core/async/AsyncLogger.html#updateConfiguration-org.apache.logging.log4j.core.config.Configuration-">updateConfiguration</a></span>(<a href="../../../../../../org/apache/logging/log4j/core/config/Configuration.html" title="interface in org.apache.logging.log4j.core.config">Configuration</a>&nbsp;newConfig)</code>
<div class="block">Associates this Logger with a new Configuration.</div>
</td>
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<h3>Methods inherited from class&nbsp;org.apache.logging.log4j.core.<a href="../../../../../../org/apache/logging/log4j/core/Logger.html" title="class in org.apache.logging.log4j.core">Logger</a></h3>
<code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html#addAppender-org.apache.logging.log4j.core.Appender-">addAppender</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#addFilter-org.apache.logging.log4j.core.Filter-">addFilter</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#equals-java.lang.Object-">equals</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#filterCount--">filterCount</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#get--">get</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#getAppenders--">getAppenders</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#getContext--">getContext</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#getFilters--">getFilters</a>, <a href="../../../../../../org/apache/logging/log4j/core/Logger.html#getLevel--">getLevel</a>, <a 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<h3>Methods inherited from class&nbsp;org.apache.logging.log4j.spi.AbstractLogger</h3>
<code>always, atDebug, atError, atFatal, atInfo, atLevel, atTrace, atWarn, catching, catching, catching, catchingMsg, checkMessageFactory, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, debug, enter, enter, enter, enter, enter, entry, entry, entry, entryMsg, entryMsg, entryMsg, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, error, exit, exit, exit, exit, exitMsg, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, fatal, getMessageFactory, getName, getRecursionDepth, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, info, isDebugEnabled, isDebugEnabled, isEnabled, isEnabled, isErrorEnabled, isErrorEnabled, isFatalEnabled, isFatalEnabled, isInfoEnabled, isInfoEnabled, isTraceEnabled, isTraceEnabled, isWarnEnabled, isWarnEnabled, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, log, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logIfEnabled, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, logMessage, printf, printf, throwing, throwing, throwing, throwingMsg, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, trace, traceEntry, traceEntry, traceEntry, traceEntry, traceEntry, traceExit, traceExit, traceExit, traceExit, traceExit, traceExit, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn, warn</code></li>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Constructor Detail</h3>
<a name="AsyncLogger-org.apache.logging.log4j.core.LoggerContext-java.lang.String-org.apache.logging.log4j.message.MessageFactory-org.apache.logging.log4j.core.async.AsyncLoggerDisruptor-">
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<h4>AsyncLogger</h4>
<pre>public&nbsp;<a href="../../../../../../src-html/org/apache/logging/log4j/core/async/AsyncLogger.html#line.93">AsyncLogger</a>(<a href="../../../../../../org/apache/logging/log4j/core/LoggerContext.html" title="class in org.apache.logging.log4j.core">LoggerContext</a>&nbsp;context,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;name,
org.apache.logging.log4j.message.MessageFactory&nbsp;messageFactory,
org.apache.logging.log4j.core.async.AsyncLoggerDisruptor&nbsp;loggerDisruptor)</pre>
<div class="block">Constructs an <code>AsyncLogger</code> with the specified context, name and message factory.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>context</code> - context of this logger</dd>
<dd><code>name</code> - name of this logger</dd>
<dd><code>messageFactory</code> - message factory of this logger</dd>
<dd><code>loggerDisruptor</code> - helper class that logging can be delegated to. This object owns the Disruptor.</dd>
</dl>
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<h3>Method Detail</h3>
<a name="updateConfiguration-org.apache.logging.log4j.core.config.Configuration-">
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<h4>updateConfiguration</h4>
<pre>protected&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/logging/log4j/core/async/AsyncLogger.html#line.107">updateConfiguration</a>(<a href="../../../../../../org/apache/logging/log4j/core/config/Configuration.html" title="interface in org.apache.logging.log4j.core.config">Configuration</a>&nbsp;newConfig)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html#updateConfiguration-org.apache.logging.log4j.core.config.Configuration-">Logger</a></code></span></div>
<div class="block">Associates this Logger with a new Configuration. This method is not
exposed through the public API.
<p>
There are two ways this could be used to guarantee all threads are aware
of changes to config.
<ol>
<li>Synchronize this method. Accessors don't need to be synchronized as
Java will treat all variables within a synchronized block as volatile.
</li>
<li>Declare the variable volatile. Option 2 is used here as the
performance cost is very low and it does a better job at documenting how
it is used.</li></div>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html#updateConfiguration-org.apache.logging.log4j.core.config.Configuration-">updateConfiguration</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html" title="class in org.apache.logging.log4j.core">Logger</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>newConfig</code> - The new Configuration.</dd>
</dl>
</li>
</ul>
<a name="logMessage-java.lang.String-org.apache.logging.log4j.Level-org.apache.logging.log4j.Marker-org.apache.logging.log4j.message.Message-java.lang.Throwable-">
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<h4>logMessage</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/logging/log4j/core/async/AsyncLogger.html#line.128">logMessage</a>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;fqcn,
org.apache.logging.log4j.Level&nbsp;level,
org.apache.logging.log4j.Marker&nbsp;marker,
org.apache.logging.log4j.message.Message&nbsp;message,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;thrown)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>logMessage</code>&nbsp;in interface&nbsp;<code>org.apache.logging.log4j.spi.ExtendedLogger</code></dd>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html#logMessage-java.lang.String-org.apache.logging.log4j.Level-org.apache.logging.log4j.Marker-org.apache.logging.log4j.message.Message-java.lang.Throwable-">logMessage</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html" title="class in org.apache.logging.log4j.core">Logger</a></code></dd>
</dl>
</li>
</ul>
<a name="log-org.apache.logging.log4j.Level-org.apache.logging.log4j.Marker-java.lang.String-java.lang.StackTraceElement-org.apache.logging.log4j.message.Message-java.lang.Throwable-">
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<h4>log</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/logging/log4j/core/async/AsyncLogger.html#line.134">log</a>(org.apache.logging.log4j.Level&nbsp;level,
org.apache.logging.log4j.Marker&nbsp;marker,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;fqcn,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StackTraceElement.html?is-external=true" title="class or interface in java.lang">StackTraceElement</a>&nbsp;location,
org.apache.logging.log4j.message.Message&nbsp;message,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Throwable.html?is-external=true" title="class or interface in java.lang">Throwable</a>&nbsp;throwable)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html#log-org.apache.logging.log4j.Level-org.apache.logging.log4j.Marker-java.lang.String-java.lang.StackTraceElement-org.apache.logging.log4j.message.Message-java.lang.Throwable-">log</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/logging/log4j/core/Logger.html" title="class in org.apache.logging.log4j.core">Logger</a></code></dd>
</dl>
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<h4>translateTo</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/logging/log4j/core/async/AsyncLogger.html#line.399">translateTo</a>(<a href="../../../../../../org/apache/logging/log4j/core/async/RingBufferLogEvent.html" title="class in org.apache.logging.log4j.core.async">RingBufferLogEvent</a>&nbsp;event,
long&nbsp;sequence,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>...&nbsp;args)</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code>translateTo</code>&nbsp;in interface&nbsp;<code>com.lmax.disruptor.EventTranslatorVararg&lt;<a href="../../../../../../org/apache/logging/log4j/core/async/RingBufferLogEvent.html" title="class in org.apache.logging.log4j.core.async">RingBufferLogEvent</a>&gt;</code></dd>
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<h4>actualAsyncLog</h4>
<pre>public&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/logging/log4j/core/async/AsyncLogger.html#line.480">actualAsyncLog</a>(<a href="../../../../../../org/apache/logging/log4j/core/async/RingBufferLogEvent.html" title="class in org.apache.logging.log4j.core.async">RingBufferLogEvent</a>&nbsp;event)</pre>
<div class="block">This method is called by the EventHandler that processes the RingBufferLogEvent in a separate thread.
Merges the contents of the configuration map into the contextData, after replacing any variables in the property
values with the StrSubstitutor-supplied actual values.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>event</code> - the event to log</dd>
</dl>
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