nopmakeradapter.java

来自「Java开发最新的日志记录工具slf4j的源码」· Java 代码 · 共 40 行

package org.slf4j.helpers;

import java.util.Map;

import org.slf4j.spi.MDCAdapter;

/**
 * This adapter is an empty implementation of the {@link MDCAdapter} interface.
 * It is used for all logging systems which do not support mapped
 * diagnostic contexts such as JDK14, simple and NOP. 
 * 
 * @author Ceki Gülcü
 * 
 * @since 1.4.1
 */
public class NOPMakerAdapter implements MDCAdapter {

  public void clear() {
  }

  public String get(String key) {
    return null;
  }

  public void put(String key, String val) {
  }

  public void remove(String key) {
  }

  public Map getCopyOfContextMap() {
    return null;
  }

  public void setContextMap(Map contextMap) {
    // NOP
  }

}