[POLICY-30] optional loadable eelf feature

for backwards compatibility purposes or if desired to
use EELF and common-framework (from policy-common) for
logging purposes in miscellaneous environments.   It supports
EELF/Common Framework style logging at the same time than
traditional logging.

This functionality is an optional loadable module.

policy-docker changes need to be made to optionally
unpack to make it active (in a different submission).

started marking feature projects with feature prefix in
project name to give a clear picture to the community which
modules are features vs. code base.

Change-Id: I5076c462409f03415ce54f0c9b5f50b78abb18f9
Signed-off-by: Jorge Hernandez <jh1730@att.com>

6 files changed, 529 insertions, 0 deletions

diff --git a/feature-eelf/src/assembly/assemble_zip.xml b/feature-eelf/src/assembly/assemble_zip.xml
new file mode 100644
index 00000000..001d3c66
--- /dev/null
+++ b/feature-eelf/src/assembly/assemble_zip.xml
@@ -0,0 +1,67 @@
+<!--
+  ============LICENSE_START=======================================================
+  feature-eelf
+  ================================================================================
+  Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+  ================================================================================
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+  
+       http://www.apache.org/licenses/LICENSE-2.0
+  
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  ============LICENSE_END=========================================================
+  -->
+
+<!-- Defines how we build the .zip file which is our distribution. -->
+
+<assembly
+	xmlns="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/plugins/maven-assembly-plugin/assembly/1.1.0 http://maven.apache.org/xsd/assembly-1.1.0.xsd">
+	
+	<id>feature-eelf-package</id>
+	<formats>
+		<format>zip</format>
+	</formats>
+
+	<includeBaseDirectory>false</includeBaseDirectory>
+
+	<fileSets>
+		<fileSet>
+			<directory>target</directory>
+			<outputDirectory>lib/opt</outputDirectory>
+			<includes>
+				<include>feature-eelf-${project.version}.jar</include>
+			</includes>
+		</fileSet>
+		<fileSet>
+			<directory>target/assembly/</directory>
+			<outputDirectory>.</outputDirectory>
+			<excludes/>
+		</fileSet>
+		<fileSet>
+			<directory>.</directory>
+			<outputDirectory>lib</outputDirectory>
+			<includes>
+				<include>*.jar</include>
+			</includes>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/install/config</directory>
+			<outputDirectory>config</outputDirectory>
+		</fileSet>
+		<fileSet>
+			<directory>src/main/install/bin</directory>
+			<outputDirectory>bin</outputDirectory>
+			<fileMode>0744</fileMode>
+			<excludes/>
+		</fileSet>
+	</fileSets>
+
+</assembly>
diff --git a/feature-eelf/src/main/install/config/logback.xml b/feature-eelf/src/main/install/config/logback.xml
new file mode 100644
index 00000000..f4295628
--- /dev/null
+++ b/feature-eelf/src/main/install/config/logback.xml
@@ -0,0 +1,185 @@
+<!--
+  ============LICENSE_START=======================================================
+  feature-eelf
+  ================================================================================
+  Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+  ================================================================================
+  Licensed under the Apache License, Version 2.0 (the "License");
+  you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at
+  
+       http://www.apache.org/licenses/LICENSE-2.0
+  
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
+  ============LICENSE_END=========================================================
+  -->
+
+<configuration scan="true" scanPeriod="30 seconds" debug="false">
+
+	<property name="errorLogName" value="error" />
+	<property name="metricsLogName" value="metrics" />
+	<property name="auditLogName" value="audit" />
+	<property name="debugLogName" value="debug" />
+	<property name="networkLogName" value="network" />
+
+	<property name="defaultPattern"
+		value="%X{BeginTimestamp}|%X{EndTimestamp}|%X{RequestId}|%X{ServiceInstanceId}|%thread|%X{ServerName}|%X{ServiceName}|%X{PartnerName}|%X{TargetEntity}|%X{TargetServiceName}|%X{StatusCode}|%X{ResponseCode}|%X{ResponseDescription}|%X{InstanceUUID}|%.-5level|%X{AlertSeverity}|%X{ServerIPAddress}|%X{ElapsedTime}|%X{ServerFQDN}|%X{RemoteHost}|%X{ClassName}||%X{ProcessKey}|%X{TargetVirtualEntity}|%X{CustomField1}|%X{CustomField2}|%X{CustomField3}|%X{CustomField4}|%msg%n" />
+	<property name="defaultMetricPattern"
+		value="%X{BeginTimestamp}|%X{EndTimestamp}|%X{RequestId}|%X{ServiceInstanceId}|%thread|%X{ServerName}|%X{ServiceName}|%X{PartnerName}|%X{TargetEntity}|%X{TargetServiceName}|%X{StatusCode}|%X{ResponseCode}|%X{ResponseDescription}|%X{InstanceUUID}|%.-5level|%X{AlertSeverity}|%X{ServerIPAddress}|%X{ElapsedTime}|%X{ServerFQDN}|%X{RemoteHost}|%X{ClassName}||%X{ProcessKey}|%X{TargetVirtualEntity}|%X{CustomField1}|%X{CustomField2}|%X{CustomField3}|%X{CustomField4}|%msg%n" />
+	<property name="defaultAuditPattern"
+		value="%X{BeginTimestamp}|%X{EndTimestamp}|%X{RequestId}|%X{ServiceInstanceId}|%thread|%X{ServerName}|%X{ServiceName}|%X{PartnerName}|%X{StatusCode}|%X{ResponseCode}|%X{ResponseDescription}|%X{InstanceUUID}|%.-5level|%X{AlertSeverity}|%X{ServerIPAddress}|%X{ElapsedTime}|%X{ServerFQDN}|%X{RemoteHost}|%X{ClassName}||%X{ProcessKey}|%X{CustomField1}|%X{CustomField2}|%X{CustomField3}|%X{CustomField4}|%msg%n" />
+	<property name="defaultErrorPattern"
+		value="%d{yyyy-MM-dd'T'HH:mm:ss.SSS+00:00, UTC}|%X{RequestId}|%thread|%X{ServiceName}|%X{PartnerName}|%X{TargetEntity}|%X{TargetServiceName}|%X{ErrorCategory}|%X{ErrorCode}|%X{ErrorDesciption}|%msg%n" />
+	<property name="networkPattern" value="[%d|%t]%m%n" />
+	<property name="debugPattern" value="[%date|%level|%logger{0}|%thread] %msg%n" />
+
+	<property name="logDirectory" value="logs/Policy" />
+	<property name="debugLogDirectory" value="logs/Policy" />
+
+	<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
+		<encoder>
+			<pattern>${defaultPattern}</pattern>
+		</encoder>
+	</appender>
+
+	<appender name="EELFAudit"
+		class="ch.qos.logback.core.rolling.RollingFileAppender">
+		<file>${logDirectory}/${auditLogName}.log</file>
+		<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
+			<fileNamePattern>${logDirectory}/${auditLogName}.%i.log.zip
+			</fileNamePattern>
+			<minIndex>1</minIndex>
+			<maxIndex>5</maxIndex>
+		</rollingPolicy>
+		<triggeringPolicy
+			class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+			<maxFileSize>10MB</maxFileSize>
+		</triggeringPolicy>
+		<encoder>
+			<pattern>${defaultAuditPattern}</pattern>
+		</encoder>
+	</appender>
+
+	<appender name="asyncEELFAudit" class="ch.qos.logback.classic.AsyncAppender">
+		<appender-ref ref="EELFAudit" />
+	</appender>
+
+	<appender name="EELFMetrics"
+		class="ch.qos.logback.core.rolling.RollingFileAppender">
+		<file>${logDirectory}/${metricsLogName}.log</file>
+		<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
+			<fileNamePattern>${logDirectory}/${metricsLogName}.%i.log.zip
+			</fileNamePattern>
+			<minIndex>1</minIndex>
+			<maxIndex>5</maxIndex>
+		</rollingPolicy>
+		<triggeringPolicy
+			class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+			<maxFileSize>15MB</maxFileSize>
+		</triggeringPolicy>
+		<encoder>
+			<pattern>${defaultMetricPattern}</pattern>
+		</encoder>
+	</appender>
+
+
+	<appender name="asyncEELFMetrics" class="ch.qos.logback.classic.AsyncAppender">
+		<appender-ref ref="EELFMetrics" />
+	</appender>
+
+	<appender name="EELFError"
+		class="ch.qos.logback.core.rolling.RollingFileAppender">
+		<file>${logDirectory}/${errorLogName}.log</file>
+		<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
+			<fileNamePattern>${logDirectory}/${errorLogName}.%i.log.zip
+			</fileNamePattern>
+			<minIndex>1</minIndex>
+			<maxIndex>5</maxIndex>
+		</rollingPolicy>
+		<filter class="ch.qos.logback.classic.filter.ThresholdFilter">
+			<level>ERROR</level>
+		</filter>
+		<triggeringPolicy
+			class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+			<maxFileSize>20MB</maxFileSize>
+		</triggeringPolicy>
+		<encoder>
+			<pattern>${defaultErrorPattern}</pattern>
+		</encoder>
+	</appender>
+
+	<appender name="asyncEELFError" class="ch.qos.logback.classic.AsyncAppender">
+		<appender-ref ref="EELFError" />
+	</appender>
+
+	<appender name="EELFDebug"
+		class="ch.qos.logback.core.rolling.RollingFileAppender">
+		<file>${debugLogDirectory}/${debugLogName}.log</file>
+		<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
+			<fileNamePattern>${debugLogDirectory}/${debugLogName}.%i.log.zip
+			</fileNamePattern>
+			<minIndex>1</minIndex>
+			<maxIndex>5</maxIndex>
+		</rollingPolicy>
+		<triggeringPolicy
+			class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+			<maxFileSize>20MB</maxFileSize>
+		</triggeringPolicy>
+		<encoder>
+			<pattern>${debugPattern}</pattern>
+		</encoder>
+	</appender>
+
+	<appender name="asyncEELFDebug" class="ch.qos.logback.classic.AsyncAppender">
+		<appender-ref ref="EELFDebug" />
+	</appender>
+	
+	<appender name="NetworkOut" class="ch.qos.logback.core.rolling.RollingFileAppender">
+		<file>${logDirectory}/${networkLogName}.log</file>
+		<rollingPolicy class="ch.qos.logback.core.rolling.FixedWindowRollingPolicy">
+			<fileNamePattern>logs/network.log.%i.zip</fileNamePattern>
+			<minIndex>1</minIndex>
+			<maxIndex>5</maxIndex>
+		</rollingPolicy>
+		<triggeringPolicy class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
+			<maxFileSize>15MB</maxFileSize>
+		</triggeringPolicy>
+		<encoder>
+			<pattern>${networkPattern}</pattern>
+		</encoder>
+	</appender>
+	
+	<appender name="AsyncNetworkOut" class="ch.qos.logback.classic.AsyncAppender">
+		<appender-ref ref="NetworkOut" />
+	</appender>
+
+	<logger name="com.att.eelf.audit" level="info" additivity="false">
+		<appender-ref ref="asyncEELFAudit" />
+	</logger>
+
+	<logger name="com.att.eelf.metrics" level="info" additivity="false">
+		<appender-ref ref="asyncEELFMetrics" />
+	</logger>
+
+	<logger name="com.att.eelf.error" level="error" additivity="false">
+		<appender-ref ref="asyncEELFError" />
+	</logger>
+
+	<logger name="com.att.eelf.debug" level="info" additivity="false">
+		<appender-ref ref="asyncEELFDebug" />
+	</logger>
+
+	<logger name="network" level="INFO" additivity="false">
+		<appender-ref ref="AsyncNetworkOut" />		
+	</logger>
+	
+	<root level="INFO">
+		<appender-ref ref="asyncEELFDebug" />
+		<appender-ref ref="asyncEELFError" />
+	</root>
+
+</configuration>
diff --git a/feature-eelf/src/main/install/config/policyLogger.properties b/feature-eelf/src/main/install/config/policyLogger.properties
new file mode 100644
index 00000000..d8987252
--- /dev/null
+++ b/feature-eelf/src/main/install/config/policyLogger.properties
@@ -0,0 +1,49 @@
+###
+# ============LICENSE_START=======================================================
+# feature-eelf
+# ================================================================================
+# Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+# ================================================================================
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#      http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============LICENSE_END=========================================================
+###
+
+################################### Set concurrentHashMap and timer info  #######################
+#Timer initial delay and the delay between in milliseconds before task is to be execute.
+timer.delay.time=1000
+#Timer scheduleAtFixedRate period - time in milliseconds between successive task executions.
+check.interval= 30000
+#Longest time an event info can be stored in the concurrentHashMap for logging - in seconds. 
+event.expired.time=86400
+#Size of the concurrentHashMap which stores the event starting time, etc - when its size reaches this limit, the Timer gets executed 
+#to remove all expired records from this concurrentHashMap.
+concurrentHashMap.limit=5000
+#Size of the concurrentHashMap - when its size drops to this point, stop the Timer
+stop.check.point=2500
+################################### Set logging format #############################################
+# set EELF for EELF logging format, set LOG4J for using log4j, set SYSTEMOUT for using system.out.println
+logger.type=EELF
+#################################### Set level for EELF or SYSTEMOUT logging ##################################
+# Set level for debug file. Set DEBUG to enable .info, .warn and .debug; set INFO for enable .info and .warn; set OFF to disable all 
+# Set override flag. Set TRUE for override the level setups in logback.xml. Set FALSE for using the level setups of logback.xml
+override.logback.level.setup=FALSE
+debugLogger.level=INFO
+# Set level for metrics file. Set OFF to disable; set ON to enable
+metricsLogger.level=ON
+# Set level for error file. Set OFF to disable; set ON to enable
+error.level=ON
+# Set level for audit file. Set OFF to disable; set ON to enable
+audit.level=ON
+#################################### Set Policy Component ##################################
+# Set DROOLS for drools PDP. Set XACML to xacml PDP
+policy.component=DROOLS
diff --git a/feature-eelf/src/main/java/org/openecomp/policy/drools/eelf/EelfFeature.java b/feature-eelf/src/main/java/org/openecomp/policy/drools/eelf/EelfFeature.java
new file mode 100644
index 00000000..de39f3a3
--- /dev/null
+++ b/feature-eelf/src/main/java/org/openecomp/policy/drools/eelf/EelfFeature.java
@@ -0,0 +1,89 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * feature-eelf
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.policy.drools.eelf;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
+import org.openecomp.policy.common.logging.flexlogger.Logger;
+import org.openecomp.policy.drools.features.PolicyEngineFeatureAPI;
+import org.openecomp.policy.drools.system.Main;
+import org.openecomp.policy.drools.system.PolicyEngine;
+
+public class EelfFeature implements PolicyEngineFeatureAPI {
+	
+	/**
+	 * EELF logback configuration path system property
+	 */
+	public static final String EELF_LOGBACK_PATH_SYSTEM_PROPERTY = "com.att.eelf.logging.file";
+	
+	/**
+	 * EELF logback configuration path value
+	 */
+	public static final String EELF_LOGBACK_PATH_DEFAULT = "config";
+	
+	/**
+	 * EELF logback configuration file system property
+	 */
+	public static final String EELF_LOGBACK_FILE_SYSTEM_PROPERTY = "com.att.eelf.logging.path";
+	
+	/**
+	 * EELF logback configuration file default value
+	 */
+	public static final String EELF_LOGBACK_FILE_DEFAULT = "logback.xml";
+
+	@Override
+	public boolean beforeBoot(PolicyEngine engine, String cliArgs[]) {
+		
+		String logback = System.getProperty(Main.LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY, 
+				                            Main.LOGBACK_CONFIGURATION_FILE_DEFAULT);
+		
+		Path logbackPath = Paths.get(logback);
+		
+		if (System.getProperty(EELF_LOGBACK_PATH_SYSTEM_PROPERTY) == null)
+			System.setProperty(EELF_LOGBACK_PATH_SYSTEM_PROPERTY, logbackPath.getFileName().toString());
+		
+		if (System.getProperty(EELF_LOGBACK_FILE_SYSTEM_PROPERTY) == null)
+			System.setProperty(EELF_LOGBACK_FILE_SYSTEM_PROPERTY, 
+					           logbackPath.toAbsolutePath().getParent().toString());
+		
+		Logger logger = FlexLogger.getLogger(this.getClass(), true);
+		
+		logger.warn("EELF/Common Frameworks Logging Enabled");
+		if (logger.isInfoEnabled()) {
+			logger.info("EELFFeature: Property " + Main.LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY + "=" + 
+			            System.getProperty(Main.LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY));
+			logger.info("EELFFeature: Property " + EELF_LOGBACK_PATH_SYSTEM_PROPERTY + "=" + 
+		                System.getProperty(EELF_LOGBACK_PATH_SYSTEM_PROPERTY));
+			logger.info("EELFFeature: Property " + EELF_LOGBACK_FILE_SYSTEM_PROPERTY + "=" + 
+	                    System.getProperty(EELF_LOGBACK_FILE_SYSTEM_PROPERTY));
+		}
+		
+		return false;
+	};
+	
+	@Override
+	public int getSequenceNumber() {
+		return 0;
+	}
+
+}
diff --git a/feature-eelf/src/main/resources/META-INF/services/org.openecomp.policy.drools.features.PolicyEngineFeatureAPI b/feature-eelf/src/main/resources/META-INF/services/org.openecomp.policy.drools.features.PolicyEngineFeatureAPI
new file mode 100644
index 00000000..70d1bb8e
--- /dev/null
+++ b/feature-eelf/src/main/resources/META-INF/services/org.openecomp.policy.drools.features.PolicyEngineFeatureAPI
@@ -0,0 +1 @@
+org.openecomp.policy.drools.eelf.EelfFeature
diff --git a/feature-eelf/src/test/java/org/openecomp/policy/drools/eelf/test/EElfTest.java b/feature-eelf/src/test/java/org/openecomp/policy/drools/eelf/test/EElfTest.java
new file mode 100644
index 00000000..2ded0d0d
--- /dev/null
+++ b/feature-eelf/src/test/java/org/openecomp/policy/drools/eelf/test/EElfTest.java
@@ -0,0 +1,138 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * feature-eelf
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+package org.openecomp.policy.drools.eelf.test;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+import org.openecomp.policy.common.logging.flexlogger.FlexLogger;
+import org.openecomp.policy.drools.eelf.EelfFeature;
+import org.openecomp.policy.drools.system.Main;
+import org.openecomp.policy.drools.system.PolicyEngine;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.att.eelf.configuration.Configuration;
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFLogger.Level;
+import com.att.eelf.configuration.EELFManager;
+
+import ch.qos.logback.classic.LoggerContext;
+
+/**
+ * Logger Tests
+ */
+public class EElfTest {
+	
+	/**
+	 * logback configuration location
+	 */
+	public final static String LOGBACK_CONFIGURATION_FILE_DEFAULT = "src/main/install/config/logback.xml";
+	
+	/**
+	 * SLF4J Logger
+	 */
+	private final Logger slf4jLogger = LoggerFactory.getLogger(EElfTest.class);
+	
+	/**
+	 * get all loggers
+	 * @return list of all loggers
+	 */
+	protected List<String> loggers() {
+		List<String> loggers = new ArrayList<String>();
+		LoggerContext context = 
+    			(LoggerContext) org.slf4j.LoggerFactory.getILoggerFactory();
+    	for (org.slf4j.Logger logger: context.getLoggerList()) {
+    		loggers.add(logger.getName());
+    	}
+    	slf4jLogger.info(loggers.toString());
+		return loggers;
+	}
+	
+	/**
+	 * Assert Log Levels are the same between an EELF Logger and an SLF4J Logger
+	 * 
+	 * @param eelfAuditLogger
+	 * @param slf4jAuditLogger
+	 */
+	protected void assertLogLevels(EELFLogger eelfAuditLogger, Logger slf4jAuditLogger) {
+		assertTrue(slf4jAuditLogger.isDebugEnabled() == eelfAuditLogger.isDebugEnabled());
+		assertTrue(slf4jAuditLogger.isInfoEnabled() == eelfAuditLogger.isInfoEnabled());
+		assertTrue(slf4jAuditLogger.isErrorEnabled() == eelfAuditLogger.isErrorEnabled());
+		assertTrue(slf4jAuditLogger.isWarnEnabled() == eelfAuditLogger.isWarnEnabled());
+		assertTrue(slf4jAuditLogger.isTraceEnabled() == eelfAuditLogger.isTraceEnabled());
+	}
+	
+	@Test
+	public void slf4jLog() {
+		
+		/* standard slf4j using defaults */
+		
+		slf4jLogger.info("slf4j info");
+		
+		List<String> loggers = loggers();  	
+    	
+		assertFalse(loggers.contains(Configuration.DEBUG_LOGGER_NAME));
+		assertFalse(loggers.contains(Configuration.AUDIT_LOGGER_NAME));
+		assertFalse(loggers.contains(Configuration.ERROR_LOGGER_NAME));
+		assertFalse(loggers.contains(Configuration.METRICS_LOGGER_NAME));
+		
+		/* set logback configuration */
+		
+    	System.setProperty(Main.LOGBACK_CONFIGURATION_FILE_SYSTEM_PROPERTY, 
+                           LOGBACK_CONFIGURATION_FILE_DEFAULT);
+    	
+    	/* set up eelf throuth common loggings library */
+    	
+		EelfFeature feature = new EelfFeature();
+		feature.beforeBoot(PolicyEngine.manager, null);
+		
+		loggers = loggers();
+		assertTrue(loggers.contains(Configuration.DEBUG_LOGGER_NAME));
+		assertTrue(loggers.contains(Configuration.AUDIT_LOGGER_NAME));
+		assertTrue(loggers.contains(Configuration.ERROR_LOGGER_NAME));
+		assertTrue(loggers.contains(Configuration.METRICS_LOGGER_NAME));
+		
+		EELFLogger eelfAuditLogger = EELFManager.getInstance().getAuditLogger();
+		Logger slf4jAuditLogger = org.slf4j.LoggerFactory.getLogger(Configuration.AUDIT_LOGGER_NAME);
+		org.openecomp.policy.common.logging.flexlogger.Logger flexLogger = 
+												FlexLogger.getLogger(EElfTest.class);
+		
+		/* generate an audit entry through both logs */
+		
+		flexLogger.audit("flexlogger audit");
+		eelfAuditLogger.info("eelf audit");
+		slf4jAuditLogger.info("slf4j audit");
+
+		/* check log levels in eelf and standard slf4j  change in both directions */
+		
+		/* eelf initiated */
+		eelfAuditLogger.setLevel(Level.ERROR);		
+		assertLogLevels(eelfAuditLogger, slf4jAuditLogger);
+		
+		/* slf4j initiated */
+		((ch.qos.logback.classic.Logger) slf4jLogger).setLevel((ch.qos.logback.classic.Level.INFO));		
+		assertLogLevels(eelfAuditLogger, slf4jAuditLogger);
+	}
+}