org.slf4j.impl.Log4jMDCAdapter Maven / Gradle / Ivy
/**
* Copyright (c) 2004-2011 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.impl;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.slf4j.spi.MDCAdapter;
public class Log4jMDCAdapter implements MDCAdapter {
public void clear() {
@SuppressWarnings("rawtypes")
Map map = org.apache.log4j.MDC.getContext();
if (map != null) {
map.clear();
}
}
public String get(String key) {
return (String) org.apache.log4j.MDC.get(key);
}
/**
* Put a context value (the val parameter) as identified with
* the key parameter into the current thread's context map. The
* key parameter cannot be null. Log4j does not
* support null for the val parameter.
*
*
* This method delegates all work to log4j's MDC.
*
* @throws IllegalArgumentException
* in case the "key" or "val" parameter is null
*/
public void put(String key, String val) {
org.apache.log4j.MDC.put(key, val);
}
public void remove(String key) {
org.apache.log4j.MDC.remove(key);
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public Map getCopyOfContextMap() {
Map old = org.apache.log4j.MDC.getContext();
if (old != null) {
return new HashMap(old);
} else {
return null;
}
}
@SuppressWarnings({ "rawtypes", "unchecked" })
public void setContextMap(Map contextMap) {
Map old = org.apache.log4j.MDC.getContext();
if (old == null) {
Iterator entrySetIterator = contextMap.entrySet().iterator();
while (entrySetIterator.hasNext()) {
Map.Entry mapEntry = (Map.Entry) entrySetIterator.next();
org.apache.log4j.MDC.put((String) mapEntry.getKey(), mapEntry.getValue());
}
} else {
old.clear();
old.putAll(contextMap);
}
}
}