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.shared.dependency.analyzer;
20
21 import javax.inject.Named;
22 import javax.inject.Singleton;
23
24 import java.io.IOException;
25 import java.net.URL;
26 import java.util.Set;
27 import java.util.zip.ZipException;
28
29 /**
30 * <p>DefaultClassAnalyzer class.</p>
31 *
32 * @author <a href="mailto:markhobson@gmail.com">Mark Hobson</a>
33 */
34 @Named
35 @Singleton
36 public class DefaultClassAnalyzer implements ClassAnalyzer {
37
38 /** {@inheritDoc} */
39 public Set<String> analyze(URL url) throws IOException {
40 CollectorClassFileVisitor visitor = new CollectorClassFileVisitor();
41
42 try {
43 ClassFileVisitorUtils.accept(url, visitor);
44 } catch (ZipException e) {
45 // since the current ZipException gives no indication what jar file is corrupted
46 // we prefer to wrap another ZipException for better error visibility
47 ZipException ze = new ZipException("Cannot process Jar entry on URL: " + url + " due to " + e.getMessage());
48 ze.initCause(e);
49 throw ze;
50 }
51
52 return visitor.getClasses();
53 }
54 }