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.eclipse.aether.graph;
20
21 /**
22 * An exclusion of one or more transitive dependencies.
23 *
24 * @see Dependency#getExclusions()
25 */
26 public final class Exclusion {
27
28 private final String groupId;
29
30 private final String artifactId;
31
32 private final String classifier;
33
34 private final String extension;
35
36 /**
37 * Creates an exclusion for artifacts with the specified coordinates.
38 *
39 * @param groupId The group identifier, may be {@code null}.
40 * @param artifactId The artifact identifier, may be {@code null}.
41 * @param classifier The classifier, may be {@code null}.
42 * @param extension The file extension, may be {@code null}.
43 */
44 public Exclusion(String groupId, String artifactId, String classifier, String extension) {
45 this.groupId = (groupId != null) ? groupId : "";
46 this.artifactId = (artifactId != null) ? artifactId : "";
47 this.classifier = (classifier != null) ? classifier : "";
48 this.extension = (extension != null) ? extension : "";
49 }
50
51 /**
52 * Gets the group identifier for artifacts to exclude.
53 *
54 * @return The group identifier, never {@code null}.
55 */
56 public String getGroupId() {
57 return groupId;
58 }
59
60 /**
61 * Gets the artifact identifier for artifacts to exclude.
62 *
63 * @return The artifact identifier, never {@code null}.
64 */
65 public String getArtifactId() {
66 return artifactId;
67 }
68
69 /**
70 * Gets the classifier for artifacts to exclude.
71 *
72 * @return The classifier, never {@code null}.
73 */
74 public String getClassifier() {
75 return classifier;
76 }
77
78 /**
79 * Gets the file extension for artifacts to exclude.
80 *
81 * @return The file extension of artifacts to exclude, never {@code null}.
82 */
83 public String getExtension() {
84 return extension;
85 }
86
87 @Override
88 public String toString() {
89 return getGroupId()
90 + ':'
91 + getArtifactId()
92 + ':'
93 + getExtension()
94 + (getClassifier().length() > 0 ? ':' + getClassifier() : "");
95 }
96
97 @Override
98 public boolean equals(Object obj) {
99 if (obj == this) {
100 return true;
101 } else if (obj == null || !getClass().equals(obj.getClass())) {
102 return false;
103 }
104
105 Exclusion that = (Exclusion) obj;
106
107 return artifactId.equals(that.artifactId)
108 && groupId.equals(that.groupId)
109 && extension.equals(that.extension)
110 && classifier.equals(that.classifier);
111 }
112
113 @Override
114 public int hashCode() {
115 int hash = 17;
116 hash = hash * 31 + artifactId.hashCode();
117 hash = hash * 31 + groupId.hashCode();
118 hash = hash * 31 + classifier.hashCode();
119 hash = hash * 31 + extension.hashCode();
120 return hash;
121 }
122 }