1 package org.apache.maven.plugins.assembly.io;
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 java.net.URL;
23
24 /**
25 * classpath resource locator strategy.
26 */
27 class ClasspathResourceLocatorStrategy
28 implements LocatorStrategy
29 {
30
31 private String tempFilePrefix = "location.";
32
33 private String tempFileSuffix = ".cpurl";
34
35 private boolean tempFileDeleteOnExit = true;
36
37 /**
38 * Create instance.
39 */
40 ClasspathResourceLocatorStrategy()
41 {
42 }
43
44 /** {@inheritDoc} */
45 public Location resolve( String locationSpecification, MessageHolder messageHolder )
46 {
47 ClassLoader cloader = Thread.currentThread().getContextClassLoader();
48
49 URL resource = cloader.getResource( locationSpecification );
50
51 Location location = null;
52
53 if ( resource != null )
54 {
55 location = new URLLocation( resource, locationSpecification, tempFilePrefix, tempFileSuffix,
56 tempFileDeleteOnExit );
57 }
58 else
59 {
60 messageHolder.addMessage( "Failed to resolve classpath resource: " + locationSpecification
61 + " from classloader: " + cloader );
62 }
63
64 return location;
65 }
66
67 }