/*
* Copyright 2004-2023 H2 Group. Multiple-Licensed under the MPL 2.0,
* and the EPL 1.0 (https://h2database.com/html/license.html).
* Initial Developer: H2 Group
*/
package org.h2.message;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This adapter sends log output to SLF4J. SLF4J supports multiple
* implementations such as Logback, Log4j, Jakarta Commons Logging (JCL), JDK
* 1.4 logging, x4juli, and Simple Log. To use SLF4J, you need to add the
* required jar files to the classpath, and set the trace level to 4 when
* opening a database:
*
* <pre>
* jdbc:h2:˜/test;TRACE_LEVEL_FILE=4
* </pre>
*
* The logger name is 'h2database'.
*/
public class TraceWriterAdapter implements TraceWriter {
private String name;
private final Logger logger = LoggerFactory.getLogger("h2database");
@Override
public void setName(String name) {
this.name = name;
}
@Override
public boolean isEnabled(int level) {
switch (level) {
case TraceSystem.DEBUG:
return logger.isDebugEnabled();
case TraceSystem.INFO:
return logger.isInfoEnabled();
case TraceSystem.ERROR:
return logger.isErrorEnabled();
default:
return false;
}
}
@Override
public void write(int level, int moduleId, String s, Throwable t) {
write(level, Trace.MODULE_NAMES[moduleId], s, t);
}
@Override
public void write(int level, String module, String s, Throwable t) {
if (isEnabled(level)) {
if (name != null) {
s = name + ":" + module + " " + s;
} else {
s = module + " " + s;
}
switch (level) {
case TraceSystem.DEBUG:
logger.debug(s, t);
break;
case TraceSystem.INFO:
logger.info(s, t);
break;
case TraceSystem.ERROR:
logger.error(s, t);
break;
default:
}
}
}
}