1 package org.eclipse.aether.internal.impl;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 final class PrioritizedComponent<T>
23 implements Comparable<PrioritizedComponent<?>>
24 {
25
26 private final T component;
27
28 private final Class<?> type;
29
30 private final float priority;
31
32 private final int index;
33
34 PrioritizedComponent( T component, Class<?> type, float priority, int index )
35 {
36 this.component = component;
37 this.type = type;
38 this.priority = priority;
39 this.index = index;
40 }
41
42 public T getComponent()
43 {
44 return component;
45 }
46
47 public Class<?> getType()
48 {
49 return type;
50 }
51
52 public float getPriority()
53 {
54 return priority;
55 }
56
57 public boolean isDisabled()
58 {
59 return Float.isNaN( priority );
60 }
61
62 public int compareTo( PrioritizedComponent<?> o )
63 {
64 int rel = ( isDisabled() ? 1 : 0 ) - ( o.isDisabled() ? 1 : 0 );
65 if ( rel == 0 )
66 {
67 rel = Float.compare( o.priority, priority );
68 if ( rel == 0 )
69 {
70 rel = index - o.index;
71 }
72 }
73 return rel;
74 }
75
76 @Override
77 public String toString()
78 {
79 return priority + " (#" + index + "): " + component;
80 }
81
82 }