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.logback12;
  
  import ch.qos.logback.core.joran.action.Action;
  import ch.qos.logback.core.joran.action.ActionUtil;
  import ch.qos.logback.core.joran.spi.ActionException;
  import ch.qos.logback.core.joran.spi.InterpretationContext;
  import ch.qos.logback.core.util.OptionHelper;
  import com.alibaba.nacos.common.logging.NacosLoggingProperties;
  import org.xml.sax.Attributes;
  
  /**
   * support logback read properties from NacosClientProperties. just like springProperty. for example:
   * <nacosClientProperty scope="context" name="logPath" source="system.log.path" defaultValue="/root" />
   *
   * @author onewe
   */
  class NacosClientPropertyAction extends Action {
      
      private static final String DEFAULT_VALUE_ATTRIBUTE = "defaultValue";
      
      private static final String SOURCE_ATTRIBUTE = "source";
      
      private final NacosLoggingProperties loggingProperties;
      
      NacosClientPropertyAction(NacosLoggingProperties loggingProperties) {
          this.loggingProperties = loggingProperties;
      }
      
      @Override
      public void begin(InterpretationContext ic, String elementName, Attributes attributes) throws ActionException {
          String name = attributes.getValue(NAME_ATTRIBUTE);
          String source = attributes.getValue(SOURCE_ATTRIBUTE);
          ActionUtil.Scope scope = ActionUtil.stringToScope(attributes.getValue(SCOPE_ATTRIBUTE));
          String defaultValue = attributes.getValue(DEFAULT_VALUE_ATTRIBUTE);
          if (OptionHelper.isEmpty(name)) {
              addError("The \"name\" and \"source\"  attributes of <nacosClientProperty> must be set");
          }
          ActionUtil.setProperty(ic, name, getValue(source, defaultValue), scope);
      }
      
      @Override
      public void end(InterpretationContext ic, String name) throws ActionException {
      
      }
      
      private String getValue(String source, String defaultValue) {
          return null == loggingProperties ? defaultValue : loggingProperties.getValue(source, defaultValue);
      }
  }