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/**
* Copyright (c) 2004-2022 QOS.ch
* All rights reserved.
*
* 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:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* 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.function.Supplier;
import org.slf4j.Logger;
import org.slf4j.Marker;
import org.slf4j.event.DefaultLoggingEvent;
import org.slf4j.event.KeyValuePair;
import org.slf4j.event.Level;
import org.slf4j.event.LoggingEvent;
/**
* Default implementation of {@link LoggingEventBuilder}
*/
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;
public DefaultLoggingEventBuilder(Logger logger, Level level) {
this.logger = logger;
loggingEvent = new DefaultLoggingEvent(level, logger);
}
/**
* Add a marker to the current logging event being built.
*
* It is possible to add multiple markers to the same logging event.
*
* @param marker the marker to add
*/
@Override
public LoggingEventBuilder addMarker(Marker marker) {
loggingEvent.addMarker(marker);
return this;
}
@Override
public LoggingEventBuilder setCause(Throwable t) {
loggingEvent.setThrowable(t);
return this;
}
@Override
public LoggingEventBuilder addArgument(Object p) {
loggingEvent.addArgument(p);
return this;
}
@Override
public LoggingEventBuilder addArgument(Supplier objectSupplier) {
loggingEvent.addArgument(objectSupplier.get());
return this;
}
@Override
public void setCallerBoundary(String fqcn) {
loggingEvent.setCallerBoundary(fqcn);
}
@Override
public void log() {
log(loggingEvent);
}
@Override
public LoggingEventBuilder setMessage(String message) {
loggingEvent.setMessage(message);
return this;
}
@Override
public LoggingEventBuilder setMessage(Supplier messageSupplier) {
loggingEvent.setMessage(messageSupplier.get());
return this;
}
@Override
public void log(String message) {
loggingEvent.setMessage(message);
log(loggingEvent);
}
@Override
public void log(String message, Object arg) {
loggingEvent.setMessage(message);
loggingEvent.addArgument(arg);
log(loggingEvent);
}
@Override
public void log(String message, Object arg0, Object arg1) {
loggingEvent.setMessage(message);
loggingEvent.addArgument(arg0);
loggingEvent.addArgument(arg1);
log(loggingEvent);
}
@Override
public void log(String message, Object... args) {
loggingEvent.setMessage(message);
loggingEvent.addArguments(args);
log(loggingEvent);
}
@Override
public void log(Supplier messageSupplier) {
if (messageSupplier == null) {
log((String) null);
} else {
log(messageSupplier.get());
}
}
protected void log(LoggingEvent aLoggingEvent) {
setCallerBoundary(DLEB_FQCN);
if (logger instanceof LoggingEventAware) {
((LoggingEventAware) logger).log(aLoggingEvent);
} else {
logViaPublicSLF4JLoggerAPI(aLoggingEvent);
}
}
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) {
System.arraycopy(argArray, 0, combinedArguments, 0, argLen);
}
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;
}
}
/**
* Prepend markers and key-value pairs to the message.
*
* @param aLoggingEvent
* @param msg
* @return
*/
private String mergeMarkersAndKeyValuePairs(LoggingEvent aLoggingEvent, String msg) {
StringBuilder sb = null;
if (aLoggingEvent.getMarkers() != null) {
sb = new StringBuilder();
for (Marker marker : aLoggingEvent.getMarkers()) {
sb.append(marker);
sb.append(' ');
}
}
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.append(msg);
return sb.toString();
} else {
return msg;
}
}
@Override
public LoggingEventBuilder addKeyValue(String key, Object value) {
loggingEvent.addKeyValue(key, value);
return this;
}
@Override
public LoggingEventBuilder addKeyValue(String key, Supplier
