1 /*
2 * Copyright (C) 2009 Jayway AB
3 * Copyright (C) 2007-2008 JVending Masa
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package com.simpligility.maven.plugins.android.phase01generatesources;
18
19 import java.io.File;
20 import java.net.MalformedURLException;
21 import java.net.URL;
22 import java.net.URLClassLoader;
23 import java.util.ArrayList;
24 import java.util.List;
25
26 /**
27 * Creates a ClassLoader from a Collection of classpath elements.
28 *
29 * @author William Ferguson - william.ferguson@xandar.com.au
30 */
31 final class ClassLoaderFactory
32 {
33 private final List<String> classpathElements;
34
35 ClassLoaderFactory( List<String> classpathElements )
36 {
37 this.classpathElements = classpathElements;
38 }
39
40 /**
41 * @return ClassLoader containing the classpaths.
42 */
43 ClassLoader create()
44 {
45 final List<URL> urls = new ArrayList<>();
46 for ( final String element : classpathElements )
47 {
48 try
49 {
50 urls.add( new File( element ).toURI().toURL() );
51 }
52 catch ( MalformedURLException e )
53 {
54 throw new IllegalArgumentException( "Could not resolve dependency : " + element, e );
55 }
56 }
57 return new URLClassLoader(
58 urls.toArray( new URL[urls.size()] ),
59 Thread.currentThread().getContextClassLoader()
60 );
61 }
62 }