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fix issues/409 SLF4J-601, wrong classname when using slf4j inside a w…
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…rapper

Signed-off-by: Ceki Gulcu <ceki@qos.ch>
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@ceki
ceki committed Apr 12, 2024
1 parent 448bca1 commit 3386517
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Showing 3 changed files with 154 additions and 83 deletions.
4 changes: 4 additions & 0 deletions slf4j-api/src/main/java/org/slf4j/event/LoggingEvent.java
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Original file line number Diff line number Diff line change
Expand Up @@ -23,6 +23,10 @@ public interface LoggingEvent {

Object[] getArgumentArray();

/**
* List of markers in the event, might be null.
* @return markers in the event, might be null.
*/
List<Marker> getMarkers();

List<KeyValuePair> getKeyValuePairs();
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197 changes: 114 additions & 83 deletions slf4j-api/src/main/java/org/slf4j/spi/DefaultLoggingEventBuilder.java
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Original file line number Diff line number Diff line change
@@ -1,29 +1,29 @@
/**
* Copyright (c) 2004-2022 QOS.ch
* All rights reserved.
*
* <p>
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* <p>
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* <p>
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
package org.slf4j.spi;

import java.util.List;
import java.util.function.Supplier;

import org.slf4j.Logger;
Expand All @@ -38,11 +38,11 @@
*/
public class DefaultLoggingEventBuilder implements LoggingEventBuilder, CallerBoundaryAware {


// The caller boundary when the log() methods are invoked, is this class itself.

static String DLEB_FQCN = DefaultLoggingEventBuilder.class.getName();

protected DefaultLoggingEvent loggingEvent;
protected Logger logger;

Expand All @@ -53,7 +53,7 @@ public DefaultLoggingEventBuilder(Logger logger, Level level) {

/**
* Add a marker to the current logging event being built.
*
* <p>
* It is possible to add multiple markers to the same logging event.
*
* @param marker the marker to add
Expand All @@ -72,156 +72,196 @@ public LoggingEventBuilder setCause(Throwable t) {

@Override
public LoggingEventBuilder addArgument(Object p) {
loggingEvent.addArgument(p);
this.loggingEvent.addArgument(p);
return this;
}

@Override
public LoggingEventBuilder addArgument(Supplier<?> objectSupplier) {
loggingEvent.addArgument(objectSupplier.get());
this.loggingEvent.addArgument(objectSupplier.get());
return this;
}

@Override
public LoggingEventBuilder addKeyValue(String key, Object value) {
loggingEvent.addKeyValue(key, value);
return this;
}

@Override
public LoggingEventBuilder addKeyValue(String key, Supplier<Object> value) {
loggingEvent.addKeyValue(key, value.get());
return this;
}

@Override
public void setCallerBoundary(String fqcn) {
loggingEvent.setCallerBoundary(fqcn);
this.loggingEvent.setCallerBoundary(fqcn);
}

@Override
public void log() {
log(loggingEvent);
log(this.loggingEvent);
}

@Override
public LoggingEventBuilder setMessage(String message) {
loggingEvent.setMessage(message);
this.loggingEvent.setMessage(message);
return this;
}

@Override
public LoggingEventBuilder setMessage(Supplier<String> messageSupplier) {
loggingEvent.setMessage(messageSupplier.get());
this.loggingEvent.setMessage(messageSupplier.get());
return this;
}

@Override
public void log(String message) {
loggingEvent.setMessage(message);
log(loggingEvent);
this.loggingEvent.setMessage(message);
log(this.loggingEvent);
}

@Override
public void log(String message, Object arg) {
loggingEvent.setMessage(message);
loggingEvent.addArgument(arg);
log(loggingEvent);
this.loggingEvent.setMessage(message);
this.loggingEvent.addArgument(arg);
log(this.loggingEvent);
}

@Override
public void log(String message, Object arg0, Object arg1) {
loggingEvent.setMessage(message);
loggingEvent.addArgument(arg0);
loggingEvent.addArgument(arg1);
log(loggingEvent);
this.loggingEvent.setMessage(message);
this.loggingEvent.addArgument(arg0);
this.loggingEvent.addArgument(arg1);
log(this.loggingEvent);
}

@Override
public void log(String message, Object... args) {
loggingEvent.setMessage(message);
loggingEvent.addArguments(args);
this.loggingEvent.setMessage(message);
this.loggingEvent.addArguments(args);

log(loggingEvent);
log(this.loggingEvent);
}

@Override
public void log(Supplier<String> messageSupplier) {
if (messageSupplier == null) {
if(messageSupplier == null) {
log((String) null);
} else {
log(messageSupplier.get());
}
}

protected void log(LoggingEvent aLoggingEvent) {
setCallerBoundary(DLEB_FQCN);
if (logger instanceof LoggingEventAware) {
if(aLoggingEvent.getCallerBoundary() == null) {
setCallerBoundary(DLEB_FQCN);
}

if(logger instanceof LoggingEventAware) {
((LoggingEventAware) logger).log(aLoggingEvent);
} else if(logger instanceof LocationAwareLogger) {
logViaLocationAwareLoggerAPI((LocationAwareLogger) logger, aLoggingEvent);
} else {
logViaPublicSLF4JLoggerAPI(aLoggingEvent);
}
}

private void logViaLocationAwareLoggerAPI(LocationAwareLogger locationAwareLogger, LoggingEvent aLoggingEvent) {
String msg = aLoggingEvent.getMessage();
List<Marker> markerList = aLoggingEvent.getMarkers();
String mergedMessage = mergeMarkersAndKeyValuePairsAndMessage(aLoggingEvent);
locationAwareLogger.log(null, aLoggingEvent.getCallerBoundary(), aLoggingEvent.getLevel().toInt(),
mergedMessage,
aLoggingEvent.getArgumentArray(), aLoggingEvent.getThrowable());
}

private void logViaPublicSLF4JLoggerAPI(LoggingEvent aLoggingEvent) {
Object[] argArray = aLoggingEvent.getArgumentArray();
int argLen = argArray == null ? 0 : argArray.length;

Throwable t = aLoggingEvent.getThrowable();
int tLen = t == null ? 0 : 1;

String msg = aLoggingEvent.getMessage();

Object[] combinedArguments = new Object[argLen + tLen];

if (argArray != null) {
if(argArray != null) {
System.arraycopy(argArray, 0, combinedArguments, 0, argLen);
}
if (t != null) {
if(t != null) {
combinedArguments[argLen] = t;
}

msg = mergeMarkersAndKeyValuePairs(aLoggingEvent, msg);

switch (aLoggingEvent.getLevel()) {
case TRACE:
logger.trace(msg, combinedArguments);
break;
case DEBUG:
logger.debug(msg, combinedArguments);
break;
case INFO:
logger.info(msg, combinedArguments);
break;
case WARN:
logger.warn(msg, combinedArguments);
break;
case ERROR:
logger.error(msg, combinedArguments);
break;
String mergedMessage = mergeMarkersAndKeyValuePairsAndMessage(aLoggingEvent);


switch(aLoggingEvent.getLevel()) {
case TRACE:
logger.trace(mergedMessage, combinedArguments);
break;
case DEBUG:
logger.debug(mergedMessage, combinedArguments);
break;
case INFO:
logger.info(mergedMessage, combinedArguments);
break;
case WARN:
logger.warn(mergedMessage, combinedArguments);
break;
case ERROR:
logger.error(mergedMessage, combinedArguments);
break;
}

}


/**
* Prepend markers and key-value pairs to the message.
*
*
* @param aLoggingEvent
* @param msg
*
* @return
*/
private String mergeMarkersAndKeyValuePairs(LoggingEvent aLoggingEvent, String msg) {
private String mergeMarkersAndKeyValuePairsAndMessage(LoggingEvent aLoggingEvent) {
StringBuilder sb = mergeMarkers(aLoggingEvent.getMarkers(), null);
sb = mergeKeyValuePairs(aLoggingEvent.getKeyValuePairs(), sb);
final String mergedMessage = mergeMessage(aLoggingEvent.getMessage(), sb);
return mergedMessage;
}

StringBuilder sb = null;
private StringBuilder mergeMarkers(List<Marker> markerList, StringBuilder sb) {
if(markerList == null || markerList.isEmpty())
return sb;

if (aLoggingEvent.getMarkers() != null) {
if(sb == null)
sb = new StringBuilder();
for (Marker marker : aLoggingEvent.getMarkers()) {
sb.append(marker);
sb.append(' ');
}

for(Marker marker : markerList) {
sb.append(marker);
sb.append(' ');
}
return sb;
}

private StringBuilder mergeKeyValuePairs(List<KeyValuePair> keyValuePairList, StringBuilder sb) {
if(keyValuePairList == null || keyValuePairList.isEmpty())
return sb;

if (aLoggingEvent.getKeyValuePairs() != null) {
if (sb == null) {
sb = new StringBuilder();
}
for (KeyValuePair kvp : aLoggingEvent.getKeyValuePairs()) {
sb.append(kvp.key);
sb.append('=');
sb.append(kvp.value);
sb.append(' ');
}
if(sb == null)
sb = new StringBuilder();

for(KeyValuePair kvp : keyValuePairList) {
sb.append(kvp.key);
sb.append('=');
sb.append(kvp.value);
sb.append(' ');
}
return sb;
}

if (sb != null) {
private String mergeMessage(String msg, StringBuilder sb) {
if(sb != null) {
sb.append(msg);
return sb.toString();
} else {
Expand All @@ -231,16 +271,7 @@ private String mergeMarkersAndKeyValuePairs(LoggingEvent aLoggingEvent, String m



@Override
public LoggingEventBuilder addKeyValue(String key, Object value) {
loggingEvent.addKeyValue(key, value);
return this;
}

@Override
public LoggingEventBuilder addKeyValue(String key, Supplier<Object> value) {
loggingEvent.addKeyValue(key, value.get());
return this;
}


}
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