1 package org.apache.maven.shared.jar.identification.exposers;
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.apache.maven.shared.jar.JarAnalyzer;
23 import org.apache.maven.shared.jar.identification.JarIdentification;
24 import org.apache.maven.shared.jar.identification.JarIdentificationExposer;
25 import org.codehaus.plexus.util.FileUtils;
26
27 import java.util.regex.Matcher;
28 import java.util.regex.Pattern;
29
30
31 /**
32 * Exposer that examines a JAR file to derive Maven metadata from the pattern of the JAR's filename.
33 * Will match the format <i>artifactId</i>-<i>version</i>.jar.
34 *
35 * @plexus.component role="org.apache.maven.shared.jar.identification.JarIdentificationExposer" role-hint="filename"
36 */
37 public class FilenameExposer
38 implements JarIdentificationExposer
39 {
40 private static final Pattern VERSION_PATTERN = Pattern.compile( "-[0-9]" );
41
42 public void expose( JarIdentification identification, JarAnalyzer jarAnalyzer )
43 {
44 String filename = FileUtils.removeExtension( jarAnalyzer.getFile().getName() );
45 Matcher mat = VERSION_PATTERN.matcher( filename );
46 if ( mat.find() )
47 {
48 String prefix = filename.substring( 0, mat.start() );
49 identification.addArtifactId( prefix );
50 identification.addName( prefix );
51 identification.addVersion( filename.substring( mat.end() - 1 ) );
52 }
53 else
54 {
55 identification.addArtifactId( filename );
56 identification.addName( filename );
57 }
58 }
59 }