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/*-
* ============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>
* <configuration>
* <appender name="SIFT" class="ch.qos.logback.classic.sift.SiftingAppender">
* <discriminator class="EventTypeDiscriminator"/>
* <sift>
* <appender name="{EventType}"
* class="ch.qos.logback.core.rolling.RollingFileAppender">
* <file>${logDirectory}/${eventType}.log</file>
* <rollingPolicy class="ch.
* qos.logback.core.rolling.FixedWindowRollingPolicy">
* <fileNamePattern>
* ${logDirectory}/${eventType}.
* %i.log.zip</fileNamePattern>
* <minIndex>1</minIndex>
* <maxIndex>9</maxIndex>
* </rollingPolicy>
* <triggeringPolicy
* class="ch.qos.logback.core.rolling.SizeBasedTriggeringPolicy">
* <maxFileSize>5MB</maxFileSize>
* </triggeringPolicy>
* <encoder>
* <pattern>${defaultPattern}</pattern>
* </encoder>
* </appender>
* </sift>
* </appender>
* <root level="INFO">
* <appender-ref ref="SIFT" />
* </root>
* </configuration>
* </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;
}
}
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