content: /*
   * Copyright 1999-2023 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.nacos.logger.adapter.log4j2;
  
  import org.apache.logging.log4j.core.LogEvent;
  import org.apache.logging.log4j.core.config.plugins.Plugin;
  import org.apache.logging.log4j.core.lookup.AbstractLookup;
  import org.apache.logging.log4j.core.lookup.StrLookup;
  
  /**
   * support log4j2 read properties from NacosClientProperties. for example:
   * <SizeBasedTriggeringPolicy size="${nacosClientProperty:JM.LOG.FILE.SIZE:-10MB}"/>
   *
   * @author onewe
   */
  @Plugin(name = "nacosClientProperty", category = StrLookup.CATEGORY)
  public class NacosClientPropertiesLookup extends AbstractLookup {
      
      @Override
      public String lookup(LogEvent event, String key) {
          return Log4j2NacosLoggingPropertiesHolder.getValue(key);
      }
  }