1 package org.eclipse.aether.graph;
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 /**
23 * An exclusion of one or more transitive dependencies.
24 *
25 * @see Dependency#getExclusions()
26 */
27 public final class Exclusion
28 {
29
30 private final String groupId;
31
32 private final String artifactId;
33
34 private final String classifier;
35
36 private final String extension;
37
38 /**
39 * Creates an exclusion for artifacts with the specified coordinates.
40 *
41 * @param groupId The group identifier, may be {@code null}.
42 * @param artifactId The artifact identifier, may be {@code null}.
43 * @param classifier The classifier, may be {@code null}.
44 * @param extension The file extension, may be {@code null}.
45 */
46 public Exclusion( String groupId, String artifactId, String classifier, String extension )
47 {
48 this.groupId = ( groupId != null ) ? groupId : "";
49 this.artifactId = ( artifactId != null ) ? artifactId : "";
50 this.classifier = ( classifier != null ) ? classifier : "";
51 this.extension = ( extension != null ) ? extension : "";
52 }
53
54 /**
55 * Gets the group identifier for artifacts to exclude.
56 *
57 * @return The group identifier, never {@code null}.
58 */
59 public String getGroupId()
60 {
61 return groupId;
62 }
63
64 /**
65 * Gets the artifact identifier for artifacts to exclude.
66 *
67 * @return The artifact identifier, never {@code null}.
68 */
69 public String getArtifactId()
70 {
71 return artifactId;
72 }
73
74 /**
75 * Gets the classifier for artifacts to exclude.
76 *
77 * @return The classifier, never {@code null}.
78 */
79 public String getClassifier()
80 {
81 return classifier;
82 }
83
84 /**
85 * Gets the file extension for artifacts to exclude.
86 *
87 * @return The file extension of artifacts to exclude, never {@code null}.
88 */
89 public String getExtension()
90 {
91 return extension;
92 }
93
94 @Override
95 public String toString()
96 {
97 return getGroupId() + ':' + getArtifactId() + ':' + getExtension()
98 + ( getClassifier().length() > 0 ? ':' + getClassifier() : "" );
99 }
100
101 @Override
102 public boolean equals( Object obj )
103 {
104 if ( obj == this )
105 {
106 return true;
107 }
108 else if ( obj == null || !getClass().equals( obj.getClass() ) )
109 {
110 return false;
111 }
112
113 Exclusion that = (Exclusion) obj;
114
115 return artifactId.equals( that.artifactId ) && groupId.equals( that.groupId )
116 && extension.equals( that.extension ) && classifier.equals( that.classifier );
117 }
118
119 @Override
120 public int hashCode()
121 {
122 int hash = 17;
123 hash = hash * 31 + artifactId.hashCode();
124 hash = hash * 31 + groupId.hashCode();
125 hash = hash * 31 + classifier.hashCode();
126 hash = hash * 31 + extension.hashCode();
127 return hash;
128 }
129
130 }