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
20 package org.apache.maven.archetype.mojos.registry;
21
22 import org.apache.maven.archetype.common.ArchetypeRegistryManager;
23 import org.apache.maven.archetype.registry.ArchetypeRegistry;
24 import org.apache.maven.plugin.AbstractMojo;
25 import org.apache.maven.plugin.MojoExecutionException;
26 import org.apache.maven.plugin.MojoFailureException;
27
28 import java.io.File;
29 import java.io.FileNotFoundException;
30 import java.util.Iterator;
31
32 /**
33 * Show the registered language directories.
34 * The registered language directories are used to discriminate
35 * packaging directories from unpackaged ones based on their name
36 * during create-from-project.
37 *
38 * @author rafale
39 * @requiresProject false
40 * (@)goal show-languages
41 * @deprecated
42 */
43 public class ShowLanguagesMojo
44 extends AbstractMojo
45 {
46 /** @component */
47 ArchetypeRegistryManager archetypeRegistryManager;
48
49 /**
50 * The location of the registry file.
51 *
52 * @parameter expression="${user.home}/.m2/archetype.xml"
53 */
54 private File archetypeRegistryFile;
55
56 public void execute()
57 throws
58 MojoExecutionException,
59 MojoFailureException
60 {
61 try
62 {
63 ArchetypeRegistry registry;
64 try
65 {
66 registry = archetypeRegistryManager.readArchetypeRegistry( archetypeRegistryFile );
67 }
68 catch ( FileNotFoundException ex )
69 {
70 registry = archetypeRegistryManager.getDefaultArchetypeRegistry();
71 }
72
73 Iterator languages = registry.getLanguages().iterator();
74
75 getLog().info( "Languages defined in " + archetypeRegistryFile );
76 while ( languages.hasNext() )
77 {
78 getLog().info( " - " + languages.next() );
79 }
80 }
81 catch ( Exception ex )
82 {
83 throw new MojoExecutionException( ex.getMessage(), ex );
84 }
85 }
86 }