/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
package org.apache.ambari.server.logging;
import org.eclipse.persistence.logging.AbstractSessionLog;
import org.eclipse.persistence.logging.SessionLog;
import org.eclipse.persistence.logging.SessionLogEntry;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* The {@link EclipseLinkLogger} is a bridge between EclipseLink's internal
* logging framework and SLF4J. EclipseLink does not have a rolling log, which
* means that the standard output file can grow large and cause disk space
* issues. This logger translates the following log levels:
* <table>
* <tr>
* <td>EclipseLink</td>
* <td>SLF4J</td>
* </tr>
* <tr>
* <td>ALL</td>
* <td>TRACE</td>
* </tr>
* <tr>
* <td>FINER</td>
* <td>TRACE</td>
* </tr>
* <tr>
* <td>FINEST</td>
* <td>TRACE</td>
* </tr>
* <tr>
* <td>FINE</td>
* <td>DEBUG</td>
* </tr>
* <tr>
* <td>INFO</td>
* <td>INFO</td>
* </tr>
* <tr>
* <td>CONFIG</td>
* <td>INFO</td>
* </tr>
* <tr>
* <td>SEVERE</td>
* <td>ERROR</td>
* </tr>
* <tr>
* <td>WARNING</td>
* <td>WARN</td>
* </tr>
* <tr>
* <td>OFF</td>
* <td>-</td>
* </tr>
* </table>
* <p/>
* Logging is still configured for EclipseLink via {@code persistence.xml}.
*/
public class EclipseLinkLogger extends AbstractSessionLog implements SessionLog {
/**
* A logger that is only for creating a bridge between EclipseLink's internal
* logger and log4j.
*/
private static final Logger JPA_LOG = LoggerFactory.getLogger("eclipselink");
/**
* The log template to use to create statements similar to EclipseLink's
* internal logger.
*/
private static final String LOG_TEMPLATE = "[EL {}]: {} {}";
@Override
public void log(SessionLogEntry sessionLogEntry) {
// use the EclipseLink log level to determine if this should be logged
int level = sessionLogEntry.getLevel();
if (!shouldLog(level, sessionLogEntry.getNameSpace())) {
return;
}
switch (level) {
case SessionLog.ALL:
case SessionLog.FINER:
case SessionLog.FINEST:
JPA_LOG.trace(LOG_TEMPLATE, "Trace", getSupplementDetailString(sessionLogEntry),
formatMessage(sessionLogEntry));
return;
case SessionLog.INFO:
case SessionLog.CONFIG:
JPA_LOG.info(LOG_TEMPLATE, "Info", getSupplementDetailString(sessionLogEntry),
formatMessage(sessionLogEntry));
return;
case SessionLog.FINE:
JPA_LOG.debug(LOG_TEMPLATE, "Debug", getSupplementDetailString(sessionLogEntry),
formatMessage(sessionLogEntry));
return;
case SessionLog.SEVERE:
// always log
JPA_LOG.error(LOG_TEMPLATE, "Error", getSupplementDetailString(sessionLogEntry),
formatMessage(sessionLogEntry));
return;
case SessionLog.WARNING:
JPA_LOG.warn(LOG_TEMPLATE, "Warning", getSupplementDetailString(sessionLogEntry),
formatMessage(sessionLogEntry));
return;
case SessionLog.OFF:
// never log
return;
default:
JPA_LOG.debug(LOG_TEMPLATE, "Unknown", getSupplementDetailString(sessionLogEntry),
formatMessage(sessionLogEntry));
return;
}
}
}