1 package org.eclipse.aether.util.graph.selector;
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 import org.eclipse.aether.collection.DependencyCollectionContext;
23 import org.eclipse.aether.collection.DependencySelector;
24 import org.eclipse.aether.graph.Dependency;
25
26 /**
27 * A dependency selector that always includes or excludes dependencies.
28 */
29 public final class StaticDependencySelector
30 implements DependencySelector
31 {
32
33 private final boolean select;
34
35 /**
36 * Creates a new selector with the specified selection behavior.
37 *
38 * @param select {@code true} to select all dependencies, {@code false} to exclude all dependencies.
39 */
40 public StaticDependencySelector( boolean select )
41 {
42 this.select = select;
43 }
44
45 public boolean selectDependency( Dependency dependency )
46 {
47 return select;
48 }
49
50 public DependencySelector deriveChildSelector( DependencyCollectionContext context )
51 {
52 return this;
53 }
54
55 @Override
56 public boolean equals( Object obj )
57 {
58 if ( this == obj )
59 {
60 return true;
61 }
62 else if ( null == obj || !getClass().equals( obj.getClass() ) )
63 {
64 return false;
65 }
66
67 StaticDependencySelector that = (StaticDependencySelector) obj;
68 return select == that.select;
69 }
70
71 @Override
72 public int hashCode()
73 {
74 int hash = getClass().hashCode();
75 hash = hash * 31 + ( select ? 1 : 0 );
76 return hash;
77 }
78
79 @Override
80 public String toString()
81 {
82 return String.format( "%s(%s)", this.getClass().getSimpleName(), this.select ? "Select all" : "Exclude all" );
83 }
84
85 }