/*
* 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.mina.util;
import org.apache.mina.common.IoSession;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Provides utility methods to log protocol-specific messages.
* <p>
* Set {@link #PREFIX} and {@link #LOGGER} session attributes
* to override prefix string and logger.
*
* @author The Apache Directory Project (mina-dev@directory.apache.org)
* @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (Fri, 13 Jul 2007) $
*
*/
public class SessionLog {
/**
* Session attribute key: prefix string
*/
public static final String PREFIX = SessionLog.class.getName() + ".prefix";
/**
* Session attribute key: {@link Logger}
*/
public static final String LOGGER = SessionLog.class.getName() + ".logger";
private static Class getClass(IoSession session) {
return session.getHandler().getClass();
}
public static void debug(IoSession session, String message) {
Logger log = getLogger(session);
if (log.isDebugEnabled()) {
log.debug(String.valueOf(session.getAttribute(PREFIX)) + message);
}
}
public static void debug(IoSession session, String message, Throwable cause) {
Logger log = getLogger(session);
if (log.isDebugEnabled()) {
log.debug(String.valueOf(session.getAttribute(PREFIX)) + message,
cause);
}
}
public static void info(IoSession session, String message) {
Logger log = getLogger(session);
if (log.isInfoEnabled()) {
log.info(String.valueOf(session.getAttribute(PREFIX)) + message);
}
}
public static void info(IoSession session, String message, Throwable cause) {
Logger log = getLogger(session);
if (log.isInfoEnabled()) {
log.info(String.valueOf(session.getAttribute(PREFIX)) + message,
cause);
}
}
public static void warn(IoSession session, String message) {
Logger log = getLogger(session);
if (log.isWarnEnabled()) {
log.warn(String.valueOf(session.getAttribute(PREFIX)) + message);
}
}
public static void warn(IoSession session, String message, Throwable cause) {
Logger log = getLogger(session);
if (log.isWarnEnabled()) {
log.warn(String.valueOf(session.getAttribute(PREFIX)) + message,
cause);
}
}
public static void error(IoSession session, String message) {
Logger log = getLogger(session);
if (log.isErrorEnabled()) {
log.error(String.valueOf(session.getAttribute(PREFIX)) + message);
}
}
public static void error(IoSession session, String message, Throwable cause) {
Logger log = getLogger(session);
if (log.isErrorEnabled()) {
log.error(String.valueOf(session.getAttribute(PREFIX)) + message,
cause);
}
}
public static boolean isDebugEnabled(IoSession session) {
return getLogger(session).isDebugEnabled();
}
public static boolean isInfoEnabled(IoSession session) {
return getLogger(session).isInfoEnabled();
}
public static boolean isWarnEnabled(IoSession session) {
return getLogger(session).isWarnEnabled();
}
public static boolean isErrorEnabled(IoSession session) {
return getLogger(session).isErrorEnabled();
}
private static Logger getLogger(IoSession session) {
Logger log = (Logger) session.getAttribute(LOGGER);
if (log == null) {
log = LoggerFactory.getLogger(getClass(session));
String prefix = (String) session.getAttribute(PREFIX);
if (prefix == null) {
prefix = "[" + session.getRemoteAddress() + "] ";
session.setAttribute(PREFIX, prefix);
}
session.setAttribute(LOGGER, log);
}
return log;
}
}