/*
    * 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.eclipse.aether.internal.impl;
  
  public final class PrioritizedComponent<T> implements Comparable<PrioritizedComponent<?>> {
  
      private final T component;
  
      private final Class<?> type;
  
      private final float priority;
  
      private final int index;
  
      PrioritizedComponent(T component, Class<?> type, float priority, int index) {
          this.component = component;
          this.type = type;
          this.priority = priority;
          this.index = index;
      }
  
      public T getComponent() {
          return component;
      }
  
      public Class<?> getType() {
          return type;
      }
  
      public float getPriority() {
          return priority;
      }
  
      public boolean isDisabled() {
          return Float.isNaN(priority);
      }
  
      public int compareTo(PrioritizedComponent<?> o) {
          int rel = (isDisabled() ? 1 : 0) - (o.isDisabled() ? 1 : 0);
          if (rel == 0) {
              rel = Float.compare(o.priority, priority);
              if (rel == 0) {
                  rel = index - o.index;
              }
          }
          return rel;
      }
  
      @Override
      public String toString() {
          return priority + " (#" + index + "): " + component;
      }
  }