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-rw-r--r--common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Markers.java21
-rw-r--r--common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Slf4JLoggerCreationService.java236
-rw-r--r--common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/aspects/MetricsAspect.java72
-rw-r--r--common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/context/MdcPropagationService.java71
-rw-r--r--common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/DispatchingAppender.java142
-rw-r--r--common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/EventTypeDiscriminator.java121
-rw-r--r--common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/servlet/LoggingFilter.java135
7 files changed, 798 insertions, 0 deletions
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Markers.java b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Markers.java
new file mode 100644
index 0000000000..dc2ae367b3
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Markers.java
@@ -0,0 +1,21 @@
+package org.openecomp.core.logging;
+
+import org.slf4j.Marker;
+import org.slf4j.MarkerFactory;
+
+/**
+ * <p>The list of markers that can be used for special logging such as metrics, audit, etc.</p>
+ * <p>Although markers can be easily instantiated whenever needed, having constants for them helps
+ * eliminate mistakes - misspelling, using a marker that is not handled, etc.</p> <p>Usage:</p>
+ * <pre>
+ * Logger log = LogFactory.getLogger(this.getClass());
+ * log.info(Markers.AUDIT, "User '{}' logged out", user);
+ * </pre>
+ *
+ * @see org.slf4j.Marker
+ */
+public class Markers {
+
+ public static final Marker AUDIT = MarkerFactory.getMarker("AUDIT");
+ public static final Marker METRICS = MarkerFactory.getMarker("METRICS");
+}
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Slf4JLoggerCreationService.java b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Slf4JLoggerCreationService.java
new file mode 100644
index 0000000000..3238e75f8e
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/Slf4JLoggerCreationService.java
@@ -0,0 +1,236 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.core.logging;
+
+import org.openecomp.core.logging.api.Logger;
+import org.openecomp.core.logging.api.LoggerCreationService;
+import org.slf4j.LoggerFactory;
+
+public class Slf4JLoggerCreationService implements LoggerCreationService {
+
+ @Override
+ public Logger getLogger(String className) {
+ return new Slf4JWrapper(className);
+ }
+
+ @Override
+ public Logger getLogger(Class<?> clazz) {
+ return new Slf4JWrapper(clazz);
+ }
+
+ private class Slf4JWrapper implements Logger {
+
+ private final org.slf4j.Logger logger;
+
+ public Slf4JWrapper(Class<?> clazz) {
+ logger = LoggerFactory.getLogger(clazz);
+ }
+
+ public Slf4JWrapper(String className) {
+ logger = LoggerFactory.getLogger(className);
+ }
+
+ @Override
+ public String getName() {
+ return logger.getName();
+ }
+
+ @Override
+ public boolean isMetricsEnabled() {
+ return logger.isInfoEnabled(Markers.METRICS);
+ }
+
+ @Override
+ public void metrics(String msg) {
+ logger.info(Markers.METRICS, msg);
+ }
+
+ @Override
+ public void metrics(String msg, Object arg) {
+ logger.info(Markers.METRICS, msg, arg);
+ }
+
+ @Override
+ public void metrics(String msg, Object arg1, Object arg2) {
+ logger.info(Markers.METRICS, msg, arg1, arg2);
+ }
+
+ @Override
+ public void metrics(String msg, Object... arguments) {
+ logger.info(Markers.METRICS, msg, arguments);
+ }
+
+ @Override
+ public void metrics(String msg, Throwable throwable) {
+ logger.info(Markers.METRICS, msg, throwable);
+ }
+
+ @Override
+ public boolean isAuditEnabled() {
+ return logger.isInfoEnabled(Markers.AUDIT);
+ }
+
+ @Override
+ public void audit(String msg) {
+ logger.info(Markers.AUDIT, msg);
+ }
+
+ @Override
+ public void audit(String msg, Object arg) {
+ logger.info(Markers.AUDIT, msg, arg);
+ }
+
+ @Override
+ public void audit(String msg, Object arg1, Object arg2) {
+ logger.info(Markers.AUDIT, msg, arg1, arg2);
+ }
+
+ @Override
+ public void audit(String msg, Object... arguments) {
+ logger.info(Markers.AUDIT, msg, arguments);
+ }
+
+ @Override
+ public void audit(String msg, Throwable throwable) {
+ logger.info(Markers.AUDIT, msg, throwable);
+ }
+
+ @Override
+ public boolean isDebugEnabled() {
+ return logger.isDebugEnabled();
+ }
+
+ @Override
+ public void debug(String msg) {
+ logger.debug(msg);
+ }
+
+ @Override
+ public void debug(String format, Object arg) {
+ logger.debug(format, arg);
+ }
+
+ @Override
+ public void debug(String format, Object arg1, Object arg2) {
+ logger.debug(format, arg1, arg2);
+ }
+
+ @Override
+ public void debug(String format, Object... arguments) {
+ logger.debug(format, arguments);
+ }
+
+ @Override
+ public void debug(String msg, Throwable throwable) {
+ logger.debug(msg, throwable);
+ }
+
+ @Override
+ public boolean isInfoEnabled() {
+ return logger.isInfoEnabled();
+ }
+
+ @Override
+ public void info(String msg) {
+ logger.info(msg);
+ }
+
+ @Override
+ public void info(String format, Object arg) {
+ logger.info(format, arg);
+ }
+
+ @Override
+ public void info(String format, Object arg1, Object arg2) {
+ logger.info(format, arg1, arg2);
+ }
+
+ @Override
+ public void info(String format, Object... arguments) {
+ logger.info(format, arguments);
+ }
+
+ @Override
+ public void info(String msg, Throwable throwable) {
+ logger.info(msg, throwable);
+ }
+
+ @Override
+ public boolean isWarnEnabled() {
+ return logger.isWarnEnabled();
+ }
+
+ @Override
+ public void warn(String msg) {
+ logger.warn(msg);
+ }
+
+ @Override
+ public void warn(String format, Object arg) {
+ logger.warn(format, arg);
+ }
+
+ @Override
+ public void warn(String format, Object... arguments) {
+ logger.warn(format, arguments);
+ }
+
+ @Override
+ public void warn(String format, Object arg1, Object arg2) {
+ logger.warn(format, arg1, arg2);
+ }
+
+ @Override
+ public void warn(String msg, Throwable throwable) {
+ logger.warn(msg, throwable);
+ }
+
+ @Override
+ public boolean isErrorEnabled() {
+ return logger.isErrorEnabled();
+ }
+
+ @Override
+ public void error(String msg) {
+ logger.error(msg);
+ }
+
+ @Override
+ public void error(String format, Object arg) {
+ logger.error(format, arg);
+ }
+
+ @Override
+ public void error(String format, Object arg1, Object arg2) {
+ logger.error(format, arg1, arg2);
+ }
+
+ @Override
+ public void error(String format, Object... arguments) {
+ logger.error(format, arguments);
+ }
+
+ @Override
+ public void error(String msg, Throwable throwable) {
+ logger.error(msg, throwable);
+ }
+ }
+}
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/aspects/MetricsAspect.java b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/aspects/MetricsAspect.java
new file mode 100644
index 0000000000..9e8c7f0aa8
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/aspects/MetricsAspect.java
@@ -0,0 +1,72 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.core.logging.aspects;
+
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.openecomp.core.logging.api.Logger;
+import org.openecomp.core.logging.api.LoggerFactory;
+import org.openecomp.core.logging.api.annotations.Metrics;
+
+/**
+ * <p>Wraps around any method annotated with {@link Metrics} to measure and log its execution time
+ * in milliseconds.</p> <p>In order for the aspect to be used, AspectJ annotation processing must be
+ * tuned on and this particular aspect enabled. Conversely, it can be disabled completely if the
+ * application does not need to log metrics.</p> <p>See, for example, <a
+ * href="http://docs.spring.io/spring/docs/current/spring-framework-reference/html/aop.html"> Aspect
+ * Oriented Programming with Spring</a>.</p>
+ *
+ * @see Metrics
+ */
+@Aspect
+public class MetricsAspect {
+
+ private static final String MESSAGE_TEMPLATE = "'{}' took {} milliseconds";
+
+ /**
+ * Log execution time object.
+ *
+ * @param pjp the pjp
+ * @return the object
+ * @throws Throwable the throwable
+ */
+ @Around("@annotation(org.openecomp.core.logging.api.annotations.Metrics)")
+ public Object logExecutionTime(ProceedingJoinPoint pjp) throws Throwable {
+
+ final Logger logger = LoggerFactory.getLogger(pjp.getSignature().getDeclaringTypeName());
+ // measure and log only if the logger for this class is enabled
+ if (logger.isMetricsEnabled()) {
+
+ final String method = pjp.getSignature().getName();
+ final long start = System.currentTimeMillis();
+
+ try {
+ return pjp.proceed();
+ } finally {
+ logger.metrics(MESSAGE_TEMPLATE, method, System.currentTimeMillis() - start);
+ }
+
+ } else {
+ return pjp.proceed();
+ }
+ }
+}
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/context/MdcPropagationService.java b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/context/MdcPropagationService.java
new file mode 100644
index 0000000000..94ad1b9717
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/context/MdcPropagationService.java
@@ -0,0 +1,71 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.core.logging.context;
+
+import org.openecomp.core.logging.api.context.ContextPropagationService;
+import org.slf4j.MDC;
+
+import java.util.Map;
+
+/**
+ * Propagates the <a href="http://www.slf4j.org/manual.html#mdc">SLF4J Mapped Diagnostic Context
+ * (MDC)</a> of a thread onto a runnable created by that thread, so that the context is available
+ * when the runnable is executed in a new thread.
+ */
+public class MdcPropagationService implements ContextPropagationService {
+
+ public Runnable create(Runnable task) {
+ return new MdcCopyingWrapper(task);
+ }
+
+ private static class MdcCopyingWrapper implements Runnable {
+
+ private final Runnable task;
+ private final Map<String, String> context;
+
+ private MdcCopyingWrapper(Runnable task) {
+ this.task = task;
+ this.context = MDC.getCopyOfContextMap();
+ }
+
+ private static void replaceMdc(Map<String, String> context) {
+
+ if (context == null) {
+ MDC.clear();
+ } else {
+ MDC.setContextMap(context);
+ }
+ }
+
+ @Override
+ public void run() {
+
+ Map<String, String> oldContext = MDC.getCopyOfContextMap();
+ replaceMdc(this.context);
+
+ try {
+ task.run();
+ } finally {
+ replaceMdc(oldContext);
+ }
+ }
+ }
+}
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/DispatchingAppender.java b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/DispatchingAppender.java
new file mode 100644
index 0000000000..6d5642e374
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/DispatchingAppender.java
@@ -0,0 +1,142 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.core.logging.logback;
+
+import ch.qos.logback.classic.Logger;
+import ch.qos.logback.classic.LoggerContext;
+import ch.qos.logback.classic.sift.MDCBasedDiscriminator;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.Appender;
+import ch.qos.logback.core.AppenderBase;
+import ch.qos.logback.core.joran.spi.DefaultClass;
+import ch.qos.logback.core.sift.Discriminator;
+import org.slf4j.LoggerFactory;
+
+import java.util.Iterator;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * <p>Allows to use EELF logging configuration almost as is, by using a custom routing function, but
+ * pre-configured appenders attached to the standard EELF loggers.</p> <p>Changes that must be made
+ * in <i>logback.xml</i> supplied with EELF:</p>
+ * <pre>
+ * &lt;appender name="DISPATCHER" class="DispatchingAppender"&gt;
+ * &lt;discriminator class="EventTypeDiscriminator"/&gt;
+ * &lt;appenderNamePattern&gt;asyncEELF%s&lt;/appenderNamePattern&gt;
+ * &lt;/appender&gt;
+ * &lt;root level="INFO" additivity="false"&gt;
+ * &lt;appender-ref ref="DISPATCHER" /&gt;
+ * &lt;/root&gt;
+ * </pre>
+ */
+public class DispatchingAppender extends AppenderBase<ILoggingEvent> {
+
+ // "magic" appender to indicate a missing appender
+ private static final Appender<ILoggingEvent> NO_APPENDER = new DispatchingAppender();
+
+ private Map<String, Appender<ILoggingEvent>> appenders = new ConcurrentHashMap<>();
+
+ private Discriminator<ILoggingEvent> discriminator;
+ private String appenderNamePattern;
+
+ public Discriminator<ILoggingEvent> getDiscriminator() {
+ return this.discriminator;
+ }
+
+ @DefaultClass(MDCBasedDiscriminator.class)
+ public void setDiscriminator(Discriminator<ILoggingEvent> discriminator) {
+ this.discriminator = discriminator;
+ }
+
+ public String getAppenderNamePattern() {
+ return this.appenderNamePattern;
+ }
+
+ public void setAppenderNamePattern(String pattern) {
+ this.appenderNamePattern = pattern;
+ }
+
+ @Override
+ protected void append(ILoggingEvent event) {
+
+ if (this.isStarted()) {
+
+ String discriminatingValue = this.discriminator.getDiscriminatingValue(event);
+ String appenderName = String.format(this.appenderNamePattern, discriminatingValue);
+ Appender<ILoggingEvent> appender = this.lookupAppender(appenderName);
+ if (appender == NO_APPENDER) {
+ this.addError(String.format("Appender %s does not exist", appenderName));
+ } else {
+ appender.doAppend(event);
+ }
+ }
+ }
+
+ private Appender<ILoggingEvent> lookupAppender(String key) {
+
+ Appender<ILoggingEvent> appender = appenders.get(key);
+ if (appender != null) {
+ return appender;
+ }
+
+ LoggerContext context = (LoggerContext) LoggerFactory.getILoggerFactory();
+ for (Logger log : context.getLoggerList()) {
+
+ Iterator<Appender<ILoggingEvent>> iterator = log.iteratorForAppenders();
+ while (iterator.hasNext()) {
+
+ Appender<ILoggingEvent> element = iterator.next();
+ if (key.equals(element.getName())) {
+ this.appenders.putIfAbsent(key, element);
+ return element;
+ }
+ }
+ }
+
+ // to avoid consecutive lookups if the required appender does not exist
+ this.appenders.putIfAbsent(key, NO_APPENDER);
+ return NO_APPENDER;
+ }
+
+ @Override
+ public void start() {
+
+ int errors = 0;
+ if (this.discriminator == null) {
+ this.addError("Missing discriminator. Aborting");
+ }
+
+ if (!this.discriminator.isStarted()) {
+ this.addError("Discriminator has not started successfully. Aborting");
+ ++errors;
+ }
+
+ if (this.appenderNamePattern == null) {
+ this.addError("Missing name pattern. Aborting");
+ ++errors;
+ }
+
+ if (errors == 0) {
+ super.start();
+ }
+ }
+}
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/EventTypeDiscriminator.java b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/EventTypeDiscriminator.java
new file mode 100644
index 0000000000..107f6728d7
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/logback/EventTypeDiscriminator.java
@@ -0,0 +1,121 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.core.logging.logback;
+
+import ch.qos.logback.classic.Level;
+import ch.qos.logback.classic.spi.ILoggingEvent;
+import ch.qos.logback.core.sift.AbstractDiscriminator;
+import org.openecomp.core.logging.Markers;
+import org.slf4j.Marker;
+
+/**
+ * Can be used with {@link ch.qos.logback.classic.sift.SiftingAppender} to route events of different
+ * types to separate log files. For example,
+ * <pre>
+ * &lt;configuration&gt;
+ * &lt;appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender"&gt;
+ * &lt;discriminator class="EventTypeDiscriminator"/&gt;
+ * &lt;sift&gt;
+ * &lt;appender name="{EventType}"
+ * class="ch.qos.logback.core.rolling.RollingFileAppender"&gt;
+ * &lt;file&gt;${logDirectory}/${eventType}.log&lt;/file&gt;
+ * &lt;rollingPolicy class="ch.
+ * qos.logback.core.rolling.FixedWindowRollingPolicy"&gt;
+ * &lt;fileNamePattern&gt;
+ * ${logDirectory}/${eventType}.
+ * %i.log.zip&lt;/fileNamePattern&gt;
+ * &lt;minIndex&gt;1&lt;/minIndex&gt;
+ * &lt;maxIndex&gt;9&lt;/maxIndex&gt;
+ * &lt;/rollingPolicy&gt;
+ * &lt;triggeringPolicy
+ * class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy"&gt;
+ * &lt;maxFileSize&gt;5MB&lt;/maxFileSize&gt;
+ * &lt;/triggeringPolicy&gt;
+ * &lt;encoder&gt;
+ * &lt;pattern&gt;${defaultPattern}&lt;/pattern&gt;
+ * &lt;/encoder&gt;
+ * &lt;/appender&gt;
+ * &lt;/sift&gt;
+ * &lt;/appender&gt;
+ * &lt;root level="INFO"&gt;
+ * &lt;appender-ref ref="SIFT" /&gt;
+ * &lt;/root&gt;
+ * &lt;/configuration&gt;
+ * </pre>
+ */
+public class EventTypeDiscriminator extends AbstractDiscriminator<ILoggingEvent> {
+
+ private static final String KEY = "eventType";
+
+ private static final String AUDIT = "Audit";
+ private static final String METRICS = "Metrics";
+ private static final String ERROR = "Error";
+ private static final String DEBUG = "Debug";
+ private static final String DEFAULT = DEBUG;
+
+ private static final int MIN_ERROR_LEVEL = Level.WARN_INT;
+ private static final int MAX_ERROR_LEVEL = Level.ERROR_INT;
+ private static final int DEFAULT_LEVEL = Level.DEBUG_INT;
+
+ @Override
+ public String getDiscriminatingValue(ILoggingEvent event) {
+
+ Level level = event.getLevel();
+ final int levelInt = level == null ? DEFAULT_LEVEL : level.toInt();
+ if ((levelInt > MIN_ERROR_LEVEL - 1) && (levelInt < MAX_ERROR_LEVEL + 1)) {
+ return ERROR;
+ }
+
+ if (levelInt == Level.DEBUG_INT) {
+ return DEBUG;
+ }
+
+ /*
+ * After DEBUG, ERROR, and WARNING have been filtered out,
+ * only TRACE and INFO are left. TRACE is less than DEBUG
+ * and therefore cannot be used. So, INFO should be used for
+ * custom routing like AUDIT and METRICS
+ */
+ if (levelInt == Level.INFO_INT) {
+
+ final Marker marker = event.getMarker();
+ if (marker != null) {
+
+ if (marker.contains(Markers.AUDIT)) {
+ return AUDIT;
+ }
+
+ if (marker.contains(Markers.METRICS)) {
+ return METRICS;
+ }
+ }
+
+ return ERROR;
+ }
+
+ return DEFAULT;
+ }
+
+ @Override
+ public String getKey() {
+ return KEY;
+ }
+}
diff --git a/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/servlet/LoggingFilter.java b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/servlet/LoggingFilter.java
new file mode 100644
index 0000000000..53923d7784
--- /dev/null
+++ b/common/openecomp-logging-lib/openecomp-logging-core/src/main/java/org/openecomp/core/logging/servlet/LoggingFilter.java
@@ -0,0 +1,135 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * 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.core.logging.servlet;
+
+import org.slf4j.MDC;
+
+import java.io.IOException;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+import java.util.UUID;
+import java.util.concurrent.atomic.AtomicLong;
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+
+/**
+ * <p>Pushes information required by EELF onto MDC (Mapped Diagnostic Context).</p> <p>This is
+ * servlet filter that should be configured in <i>web.xml</i> to be used. Example:</p>
+ * <pre>
+ * &lt;filter&gt;
+ * &lt;filter-name&gt;LoggingServletFilter&lt;/filter-name&gt;
+ * &lt;filter-class&gt;LoggingFilter&lt;/filter-class&gt;
+ * &lt;/filter&gt;
+ * &lt;filter-mapping&gt;
+ * &lt;filter-name&gt;LoggingServletFilter&lt;/filter-name&gt;
+ * &lt;url-pattern&gt;/*&lt;/url-pattern&gt;
+ * &lt;/filter-mapping&gt;
+ * </pre>
+ */
+public class LoggingFilter implements Filter {
+
+ // should be cashed to avoid low-level call, but with a timeout to account for IP or FQDN changes
+ private static final HostAddressCache HOST_ADDRESS = new HostAddressCache();
+ private static final String UNKNOWN = "UNKNOWN";
+
+ public void destroy() {
+ }
+
+ /**
+ * Do Filter.
+ *
+ * @param request the request
+ */
+ public void doFilter(ServletRequest request, ServletResponse response,
+ FilterChain chain) throws IOException, ServletException {
+
+ try {
+
+ MDC.clear();
+
+ MDC.put("RequestId", UUID.randomUUID().toString());
+ MDC.put("ServiceInstanceId", "N/A"); // not applicable
+ MDC.put("ServiceName", "SDC");
+ MDC.put("InstanceUUID", "N/A");
+
+ // For some reason chooses IPv4 or IPv6 in a random way
+ MDC.put("RemoteHost", request.getRemoteHost());
+
+ InetAddress host = HOST_ADDRESS.get();
+
+ String ipAddress;
+ String hostName;
+ if (host == null) {
+ ipAddress = UNKNOWN;
+ hostName = UNKNOWN;
+ } else {
+ ipAddress = host.getHostAddress();
+ hostName = host.getHostName();
+ }
+
+ MDC.put("ServerIPAddress", ipAddress);
+ MDC.put("ServerFQDN", hostName);
+
+ // TODO: Clarify what these stand for
+ // MDC.put("AlertSeverity", );
+ // MDC.put("Timer", );
+
+ chain.doFilter(request, response);
+
+ } finally {
+ MDC.clear();
+ }
+ }
+
+ public void init(FilterConfig config) throws ServletException {
+ }
+
+ private static class HostAddressCache {
+
+ private static final long REFRESH_TIME = 1000L;
+
+ private AtomicLong lastUpdated = new AtomicLong(0L);
+ private InetAddress hostAddress;
+
+ public InetAddress get() {
+
+ long current = System.currentTimeMillis();
+ if (current - lastUpdated.get() > REFRESH_TIME) {
+
+ synchronized (this) {
+
+ try {
+ lastUpdated.set(current); // set now to register the attempt even if failed
+ hostAddress = InetAddress.getLocalHost();
+ } catch (UnknownHostException unknownHostException) {
+ hostAddress = null;
+ }
+ }
+ }
+
+ return hostAddress;
+ }
+ }
+}