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 package org.apache.maven.plugins.assembly.io;
20
21 import java.net.URL;
22
23 /**
24 * classpath resource locator strategy.
25 */
26 class ClasspathResourceLocatorStrategy implements LocatorStrategy {
27
28 /**
29 * Create instance.
30 */
31 ClasspathResourceLocatorStrategy() {}
32
33 /** {@inheritDoc} */
34 public Location resolve(String locationSpecification, MessageHolder messageHolder) {
35 ClassLoader cloader = Thread.currentThread().getContextClassLoader();
36
37 URL resource = cloader.getResource(locationSpecification);
38
39 Location location = null;
40
41 if (resource != null) {
42 location = new URLLocation(resource, locationSpecification, "location.", ".cpurl", true);
43 } else {
44 messageHolder.addMessage(
45 "Failed to resolve classpath resource: " + locationSpecification + " from classloader: " + cloader);
46 }
47
48 return location;
49 }
50 }