/*
    * 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.
   */
  package org.apache.logging.log4j.core.config;
  
  import org.apache.logging.log4j.Logger;
  import org.apache.logging.log4j.core.config.plugins.Plugin;
  import org.apache.logging.log4j.core.config.plugins.PluginAttr;
  import org.apache.logging.log4j.core.config.plugins.PluginFactory;
  import org.apache.logging.log4j.core.config.plugins.PluginValue;
  import org.apache.logging.log4j.status.StatusLogger;
  
  /**
   * Represents a key/value pair in the configuration.
   */
  @Plugin(name = "property", type = "Core", printObject = true)
  public final class Property {
  
      private static final Logger LOGGER = StatusLogger.getLogger();
  
      private String name;
      private String value;
  
      private Property(String name, String value) {
          this.name = name;
          this.value = value;
      }
  
      /**
       * Return the property name.
       * @return the property name.
       */
      public String getName() {
          return name;
      }
  
      /**
       * Return the property value.
       * @return the value of the property.
       */
      public String getValue() {
          return value;
      }
  
      /**
       * Create a Property.
       * @param key The key.
       * @param value The value.
       * @return A Property.
       */
      @PluginFactory
      public static Property createProperty(@PluginAttr("name") String key,
                                            @PluginValue("value") String value) {
          if (key == null) {
              LOGGER.error("Property key cannot be null");
          }
          return new Property(key, value);
      }
  
      @Override
      public String toString() {
          return name + "=" + value;
      }
  }