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asuresh8asuresh8
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Added support for log4j2
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‎README.md

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@@ -25,6 +25,11 @@ ___
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<artifactId>aws-lambda-java-log4j</artifactId>
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<version>1.0.0</version>
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</dependency>
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<dependency>
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<groupId>com.amazonaws</groupId>
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<artifactId>aws-lambda-java-log4j2</artifactId>
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<version>1.0.0</version>
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</dependency>
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```
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[Gradle](https://gradle.org)
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'com.amazonaws:aws-lambda-java-core:1.1.0'
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'com.amazonaws:aws-lambda-java-events:1.3.0'
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'com.amazonaws:aws-lambda-java-log4j:1.0.0'
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'com.amazonaws:aws-lambda-java-log4j2:1.0.0'
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```
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[Leiningen](http://leiningen.org) and [Boot](http://boot-clj.com)
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[com.amazonaws/aws-lambda-java-core "1.1.0"]
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[com.amazonaws/aws-lambda-java-events "1.3.0"]
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[com.amazonaws/aws-lambda-java-log4j "1.0.0"]
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[com.amazonaws/aws-lambda-java-log4j2 "1.0.0"]
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```
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[sbt](http://www.scala-sbt.org)
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"com.amazonaws" % "aws-lambda-java-core" % "1.1.0"
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"com.amazonaws" % "aws-lambda-java-events" % "1.3.0"
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"com.amazonaws" % "aws-lambda-java-log4j" % "1.0.0"
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"com.amazonaws" % "aws-lambda-java-log4j2" % "1.0.0"
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```

‎aws-lambda-java-log4j2/pom.xml

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<project xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.amazonaws</groupId>
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<artifactId>aws-lambda-java-log4j2</artifactId>
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<version>1.0.0</version>
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<packaging>jar</packaging>
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<name>AWS Lambda Java Log4j 2.8 Libraries</name>
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<description>
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Support for using log4j 2.8 with AWS Lambda.
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</description>
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<url>https://aws.amazon.com/lambda/</url>
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<licenses>
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<license>
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<name>Apache License, Version 2.0</name>
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<url>https://aws.amazon.com/apache2.0</url>
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<distribution>repo</distribution>
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</license>
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</licenses>
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<scm>
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<url>https://github.com/aws/aws-lambda-java-libs.git</url>
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</scm>
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<developers>
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<developer>
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<name>AWS Lambda team</name>
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<organization>Amazon Web Services</organization>
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<organizationUrl>https://aws.amazon.com/</organizationUrl>
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</developer>
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</developers>
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<dependencies>
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<dependency>
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<groupId>com.amazonaws</groupId>
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<artifactId>aws-lambda-java-core</artifactId>
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<version>1.1.0</version>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-core</artifactId>
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<version>2.8.2</version>
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</dependency>
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-api</artifactId>
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<version>2.8.2</version>
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</dependency>
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</dependencies>
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<distributionManagement>
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<repository>
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<id>sonatype-nexus-staging</id>
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<url>https://oss.sonatype.org/service/local/staging/deploy/maven2/</url>
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</repository>
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</distributionManagement>
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<profiles>
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<profile>
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<id>dev</id>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-javadoc-plugin</artifactId>
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<version>2.9.1</version>
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<configuration>
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<additionalparam>-Xdoclint:none</additionalparam>
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</configuration>
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<executions>
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<execution>
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<id>attach-javadocs</id>
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<goals>
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<goal>jar</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</profile>
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<profile>
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<id>release</id>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-source-plugin</artifactId>
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<version>2.2.1</version>
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<executions>
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<execution>
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<id>attach-sources</id>
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<goals>
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<goal>jar-no-fork</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-javadoc-plugin</artifactId>
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<version>2.9.1</version>
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<configuration>
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<additionalparam>-Xdoclint:none</additionalparam>
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</configuration>
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<executions>
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<execution>
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<id>attach-javadocs</id>
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<goals>
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<goal>jar</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-gpg-plugin</artifactId>
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<version>1.5</version>
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<executions>
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<execution>
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<id>sign-artifacts</id>
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<phase>verify</phase>
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<goals>
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<goal>sign</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.sonatype.plugins</groupId>
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<artifactId>nexus-staging-maven-plugin</artifactId>
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<version>1.6.3</version>
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<extensions>true</extensions>
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<configuration>
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<serverId>sonatype-nexus-staging</serverId>
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<nexusUrl>https://oss.sonatype.org/</nexusUrl>
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<autoReleaseAfterClose>false</autoReleaseAfterClose>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</profile>
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</profiles>
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</project>

‎aws-lambda-java-log4j2/src/main/java/com/amazonaws/services/lambda/runtime/log4j2/LambdaAppender.java

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package com.amazonaws.services.lambda.runtime.log4j2;
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import com.amazonaws.services.lambda.runtime.LambdaRuntimeInternal;
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import org.apache.logging.log4j.core.Filter;
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import org.apache.logging.log4j.core.Layout;
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import org.apache.logging.log4j.core.LogEvent;
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import org.apache.logging.log4j.core.appender.AbstractAppender;
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import org.apache.logging.log4j.core.config.plugins.Plugin;
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import org.apache.logging.log4j.core.config.plugins.PluginBuilderFactory;
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import java.io.IOException;
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import java.io.Serializable;
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/**
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* Class to append log4j2 logs from AWS Lambda function to CloudWatch
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* Created by adsuresh on 6/9/17.
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*/
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@Plugin(name = LambdaAppender.PLUGIN_NAME, category = LambdaAppender.PLUGIN_CATEGORY,
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elementType = LambdaAppender.PLUGIN_TYPE, printObject = true)
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public class LambdaAppender extends AbstractAppender {
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public static final String PLUGIN_NAME = "Lambda";
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public static final String PLUGIN_CATEGORY = "Core";
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public static final String PLUGIN_TYPE = "appender";
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/**
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* Builder class that follows log4j2 plugin convention
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* @param <B> Generic Builder class
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*/
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public static class Builder<B extends Builder<B>> extends AbstractAppender.Builder<B>
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implements org.apache.logging.log4j.core.util.Builder<LambdaAppender> {
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/**
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* creates a new LambdaAppender
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* @return a new LambdaAppender
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*/
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public LambdaAppender build() {
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return new LambdaAppender(super.getName(), super.getFilter(), super.getOrCreateLayout(),
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super.isIgnoreExceptions());
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}
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}
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/**
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* Method used by log4j2 to access this appender
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* @param <B> Generic Builder class
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* @return LambdaAppender Builder
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*/
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@PluginBuilderFactory
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public static <B extends Builder<B>> B newBuilder() {
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return new Builder<B>().asBuilder();
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}
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/**
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* Constructor method following AbstractAppender convention
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* @param name name of appender
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* @param filter filter specified in xml
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* @param layout layout specified in xml
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* @param ignoreExceptions whether to show exceptions or not specified in xml
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*/
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private LambdaAppender(String name, Filter filter, Layout<? extends Serializable> layout, boolean ignoreExceptions) {
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super(name, filter, layout, ignoreExceptions);
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LambdaRuntimeInternal.setUseLog4jAppender(true);
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}
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/**
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* Append log event to System.out
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* @param event log4j event
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*/
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public void append(LogEvent event) {
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try {
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System.out.write(super.getLayout().toByteArray(event));
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System.out.flush();
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System.out.print(System.lineSeparator());
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}

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