package io.blobkeeper.common.util;
import io.blobkeeper.common.logging.MdcContext;
import org.jetbrains.annotations.NotNull;
import org.slf4j.Logger;
import org.slf4j.MDC;
import java.util.HashMap;
import java.util.Map;
import static org.slf4j.LoggerFactory.getLogger;
/*
* Copyright (C) 2015 by Denis M. Gabaydulin
*
* 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.
*/
public class MdcUtils {
private static final Logger log = getLogger(MdcUtils.class);
private MdcUtils() {
}
public static void setCurrentContext(@NotNull MdcContext context) {
MDC.setContextMap(context.getContext());
}
public static void putToCurrentContext(@NotNull String key, @NotNull String value) {
MDC.put(key, value);
}
public static void removeFromCurrentContext(@NotNull String key) {
MDC.remove(key);
}
public static void clearCurrentContext() {
MDC.clear();
}
@SuppressWarnings("unchecked")
@NotNull
public static MdcContext getCurrentContext() {
Map<String, String> context = MDC.getCopyOfContextMap();
if (null == context) {
log.warn("Can't find current context");
context = new HashMap<>();
}
return new MdcContext(context);
}
}