1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.maven.artifact.resolver.filter;
20
21 import org.apache.maven.artifact.Artifact;
22
23 /**
24 * InversionArtifactFilter
25 */
26 public class InversionArtifactFilter implements ArtifactFilter {
27 private final ArtifactFilter toInvert;
28
29 public InversionArtifactFilter(ArtifactFilter toInvert) {
30 this.toInvert = toInvert;
31 }
32
33 public boolean include(Artifact artifact) {
34 return !toInvert.include(artifact);
35 }
36
37 @Override
38 public int hashCode() {
39 int hash = 17;
40 hash = hash * 31 + toInvert.hashCode();
41 return hash;
42 }
43
44 @Override
45 public boolean equals(Object obj) {
46 if (this == obj) {
47 return true;
48 }
49
50 if (!(obj instanceof InversionArtifactFilter)) {
51 return false;
52 }
53
54 InversionArtifactFilter other = (InversionArtifactFilter) obj;
55
56 return toInvert.equals(other.toInvert);
57 }
58 }