1 /*
2 * ModeShape (http://www.modeshape.org)
3 * See the COPYRIGHT.txt file distributed with this work for information
4 * regarding copyright ownership. Some portions may be licensed
5 * to Red Hat, Inc. under one or more contributor license agreements.
6 * See the AUTHORS.txt file in the distribution for a full listing of
7 * individual contributors.
8 *
9 * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10 * is licensed to you under the terms of the GNU Lesser General Public License as
11 * published by the Free Software Foundation; either version 2.1 of
12 * the License, or (at your option) any later version.
13 *
14 * ModeShape is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this software; if not, write to the Free
21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23 */
24 package org.modeshape.sequencer.classfile.metadata;
25
26 import java.io.DataInputStream;
27 import java.io.InputStream;
28 import javassist.bytecode.AccessFlag;
29 import javassist.bytecode.ClassFile;
30
31 /**
32 * Utility for extracting metadata from Java class files
33 */
34 public class ClassFileMetadataReader {
35
36 public static ClassMetadata instance( InputStream stream ) throws Exception {
37 ClassFile clazz = new ClassFile(new DataInputStream(stream));
38
39 if ((AccessFlag.ENUM & clazz.getAccessFlags()) == AccessFlag.ENUM) {
40 return new EnumMetadata(clazz);
41 }
42
43 return new ClassMetadata(clazz);
44 }
45 }