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package org.openecomp.sdc.common.log.elements;
import com.google.common.annotations.VisibleForTesting;
import org.apache.commons.lang3.StringUtils;
import org.openecomp.sdc.common.log.api.ILogFieldsHandler;
import org.openecomp.sdc.common.log.api.ILogger;
import org.openecomp.sdc.common.log.enums.LogLevel;
import org.openecomp.sdc.common.log.enums.LogMarkers;
import org.openecomp.sdc.common.util.ThreadLocalsHolder;
import org.slf4j.Logger;
import org.slf4j.Marker;
import org.slf4j.MarkerFactory;
import java.util.Arrays;
import java.util.List;
/**
* Created by mm288v on 12/27/2017.
* This class holds the common behavior of all Loger-Typed classes.
* The Concrete loggers shoudl derive from this one.
*/
public abstract class LoggerBase implements ILogger {
private final Logger myLogger;
private final Marker myMarker;
protected final ILogFieldsHandler ecompLogFieldsHandler;
private final static String missingLogFieldsMsg = "mandatory parameters for ECOMP logging, missing fields: %s, original message: %s";
LoggerBase(ILogFieldsHandler ecompLogFieldsHandler, Marker marker, Logger logger) {
this.ecompLogFieldsHandler = ecompLogFieldsHandler;
this.myMarker = marker;
this.myLogger = logger;
setKeyRequestIdIfNotSetYet();
}
protected void setKeyRequestIdIfNotSetYet() {
if (StringUtils.isEmpty(ecompLogFieldsHandler.getKeyRequestId())) {
setKeyRequestId(ThreadLocalsHolder.getUuid());
}
}
private void validateMandatoryFields(String originMsg) {
// this method only checks if the mandatory fields have been initialized
String filedNameThatHasNotBeenInitialized = checkMandatoryFieldsExistInMDC();
if (myLogger.isDebugEnabled() && !"".equalsIgnoreCase(filedNameThatHasNotBeenInitialized)) {
myLogger.debug(MarkerFactory.getMarker(LogMarkers.DEBUG_MARKER.text()),
String.format(missingLogFieldsMsg, filedNameThatHasNotBeenInitialized, originMsg));
}
}
@VisibleForTesting
String checkMandatoryFieldsExistInMDC() {
// this method returns a String of uninitialised fields
StringBuilder missingFields = new StringBuilder();
getMandatoryFields().forEach(field -> {
if (ecompLogFieldsHandler.isMDCParamEmpty(field)) {
missingFields.append(field).append(" ");
}
});
return missingFields.toString();
}
public abstract List<String> getMandatoryFields();
protected String convertExceptionStackToString(Exception ex) {
StringBuilder stackTrack = new StringBuilder();
Arrays.asList(ex.getStackTrace()).forEach(item -> stackTrack.append(item.toString()).append("\n"));
return stackTrack.toString();
}
@Override
public void log(LogLevel logLevel, String message) {
log(logLevel, message, (Object) null);
}
@Override
public void log(LogLevel logLevel, String message, Object...params) {
validateMandatoryFields(message);
switch(logLevel) {
case ERROR:
case FATAL: //TODO check how to log "FATAL" word
myLogger.error(myMarker, message, params);
break;
case WARN:
myLogger.warn(myMarker, message, params);
break;
case INFO:
myLogger.info(myMarker, message, params);
break;
case DEBUG:
myLogger.debug(myMarker, message, params);
break;
case TRACE:
myLogger.trace(myMarker, message, params);
break;
default:
break;
}
}
@Override
public void log(LogLevel logLevel, String message, Throwable throwable) {
validateMandatoryFields(message);
switch(logLevel) {
case ERROR:
case FATAL: //TODO check how to log "FATAL" word
myLogger.error(myMarker, createErrorMessage(message, throwable));
break;
case WARN:
myLogger.warn(myMarker, createErrorMessage(message, throwable));
break;
case INFO:
myLogger.info(myMarker, createErrorMessage(message, throwable));
break;
case DEBUG:
myLogger.debug(myMarker, message, throwable);
break;
case TRACE:
myLogger.trace(myMarker, message, throwable);
break;
default:
break;
}
}
protected String createErrorMessage(String message, Throwable throwable) {
return String.format("%s: %s", message, throwable.getLocalizedMessage());
}
@Override
public ILogger clear() {
ecompLogFieldsHandler.clear();
return this;
}
@Override
public ILogger setKeyRequestId(String keyRequestId) {
ecompLogFieldsHandler.setKeyRequestId(keyRequestId);
return this;
}
}
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