1 package org.apache.maven.plugin.ear.output;
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 * Provides access to {@link FileNameMapping} implementations.
24 * <p/>
25 * Two basic implementations are provided by default:
26 * <ul>
27 * <li>standard: the default implementation</li>
28 * <li>full: an implementation that maps to a 'full' file name, i.e. containing the groupId</li>
29 * </ul>
30 *
31 * @author <a href="snicoll@apache.org">Stephane Nicoll</a>
32 * @version $Id: FileNameMappingFactory.java 992847 2010-09-05 18:16:55Z snicoll $
33 */
34 public class FileNameMappingFactory
35 {
36 static final String STANDARD_FILE_NAME_MAPPING = "standard";
37
38 static final String FULL_FILE_NAME_MAPPING = "full";
39
40 static final String NO_VERSION_FILE_NAME_MAPPING = "no-version";
41
42
43 private FileNameMappingFactory()
44 {
45 }
46
47 public static FileNameMapping getDefaultFileNameMapping()
48 {
49 return new StandardFileNameMapping();
50 }
51
52 /**
53 * Returns the file name mapping implementation based on a logical name
54 * of a fully qualified name of the class.
55 *
56 * @param nameOrClass a name of the fqn of the implementation
57 * @return the file name mapping implementation
58 * @throws IllegalStateException if the implementation is not found
59 */
60 public static FileNameMapping getFileNameMapping( final String nameOrClass )
61 throws IllegalStateException
62 {
63 if ( STANDARD_FILE_NAME_MAPPING.equals( nameOrClass ) )
64 {
65 return getDefaultFileNameMapping();
66 }
67 if ( FULL_FILE_NAME_MAPPING.equals( nameOrClass ) )
68 {
69 return new FullFileNameMapping();
70 }
71 if ( NO_VERSION_FILE_NAME_MAPPING.equals( nameOrClass ) )
72 {
73 return new NoVersionFileNameMapping();
74 }
75 try
76 {
77 final Class c = Class.forName( nameOrClass );
78 return (FileNameMapping) c.newInstance();
79 }
80 catch ( ClassNotFoundException e )
81 {
82 throw new IllegalStateException(
83 "File name mapping implementation[" + nameOrClass + "] was not found " + e.getMessage() );
84 }
85 catch ( InstantiationException e )
86 {
87 throw new IllegalStateException( "Could not instantiate file name mapping implementation[" + nameOrClass +
88 "] make sure it has a default public constructor" );
89 }
90 catch ( IllegalAccessException e )
91 {
92 throw new IllegalStateException( "Could not access file name mapping implementation[" + nameOrClass +
93 "] make sure it has a default public constructor" );
94 }
95 catch ( ClassCastException e )
96 {
97 throw new IllegalStateException(
98 "Specified class[" + nameOrClass + "] does not implement[" + FileNameMapping.class.getName() + "]" );
99 }
100 }
101 }