/*
    * 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.builder.impl;
  
  import java.util.ArrayList;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  
  import org.apache.logging.log4j.Level;
  import org.apache.logging.log4j.core.config.Configuration;
  import org.apache.logging.log4j.core.config.builder.api.Component;
  import org.apache.logging.log4j.core.config.builder.api.ComponentBuilder;
  import org.apache.logging.log4j.core.config.builder.api.ConfigurationBuilder;
  
  /**
   * Generic component that captures attributes and Components in preparation for assembling the Appender's
   * Component.
   *
   * @since 2.4
   */
  class DefaultComponentBuilder<T extends ComponentBuilder<T>, CB extends ConfigurationBuilder<? extends Configuration>>
          implements ComponentBuilder<T> {
  
      private final CB builder;
      private final String type;
      private final Map<String, String> attributes = new LinkedHashMap<>();
      private final List<Component> components = new ArrayList<>();
      private final String name;
      private final String value;
  
      public DefaultComponentBuilder(final CB builder, final String type) {
          this(builder, null, type, null);
      }
  
      public DefaultComponentBuilder(final CB builder, final String name, final String type) {
          this(builder, name, type, null);
      }
  
      public DefaultComponentBuilder(final CB builder, final String name, final String type,
              final String value) {
          this.type = type;
          this.builder = builder;
          this.name = name;
          this.value = value;
      }
  
      @Override
      public T addAttribute(final String key, final boolean value) {
          return put(key, Boolean.toString(value));
      }
  
      @Override
      public T addAttribute(final String key, final Enum<?> value) {
          return put(key, value.name());
      }
  
      @Override
      public T addAttribute(final String key, final int value) {
          return put(key, Integer.toString(value));
      }
  
  
      @Override
      public T addAttribute(final String key, final Level level) {
          return put(key, level.toString());
      }
  
      @Override
      public T addAttribute(final String key, final Object value) {
          return put(key, value.toString());
      }
  
  
      @Override
      public T addAttribute(final String key, final String value) {
          return put(key, value);
      }
  
      @Override
      @SuppressWarnings("unchecked")
      public T addComponent(final ComponentBuilder<?> builder) {
          components.add(builder.build());
          return (T) this;
      }
 
     @Override
     public Component build() {
         final Component component = new Component(type, name, value);
         component.getAttributes().putAll(attributes);
         component.getComponents().addAll(components);
         return component;
     }
 
     @Override
     public CB getBuilder() {
         return builder;
     }
 
     @Override
     public String getName() {
         return name;
     }
 
     @SuppressWarnings("unchecked")
     protected T put(final String key, final String value) {
         attributes.put(key, value);
         return (T) this;
     }
 }