jaroslav@152
|
1 |
/*
|
jaroslav@152
|
2 |
* Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved.
|
jaroslav@152
|
3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
jaroslav@152
|
4 |
*
|
jaroslav@152
|
5 |
* This code is free software; you can redistribute it and/or modify it
|
jaroslav@152
|
6 |
* under the terms of the GNU General Public License version 2 only, as
|
jaroslav@152
|
7 |
* published by the Free Software Foundation. Oracle designates this
|
jaroslav@152
|
8 |
* particular file as subject to the "Classpath" exception as provided
|
jaroslav@152
|
9 |
* by Oracle in the LICENSE file that accompanied this code.
|
jaroslav@152
|
10 |
*
|
jaroslav@152
|
11 |
* This code is distributed in the hope that it will be useful, but WITHOUT
|
jaroslav@152
|
12 |
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
jaroslav@152
|
13 |
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
jaroslav@152
|
14 |
* version 2 for more details (a copy is included in the LICENSE file that
|
jaroslav@152
|
15 |
* accompanied this code).
|
jaroslav@152
|
16 |
*
|
jaroslav@152
|
17 |
* You should have received a copy of the GNU General Public License version
|
jaroslav@152
|
18 |
* 2 along with this work; if not, write to the Free Software Foundation,
|
jaroslav@152
|
19 |
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
jaroslav@152
|
20 |
*
|
jaroslav@152
|
21 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
jaroslav@152
|
22 |
* or visit www.oracle.com if you need additional information or have any
|
jaroslav@152
|
23 |
* questions.
|
jaroslav@152
|
24 |
*/
|
jtulach@167
|
25 |
package org.apidesign.javap;
|
jaroslav@152
|
26 |
|
jaroslav@152
|
27 |
import java.io.ByteArrayInputStream;
|
jaroslav@152
|
28 |
import java.io.DataInputStream;
|
jaroslav@152
|
29 |
import java.io.IOException;
|
jaroslav@152
|
30 |
|
jaroslav@152
|
31 |
/** An abstract parser for annotation definitions. Analyses the bytes and
|
jaroslav@152
|
32 |
* performs some callbacks to the overriden parser methods.
|
jaroslav@152
|
33 |
*
|
jaroslav@152
|
34 |
* @author Jaroslav Tulach <jtulach@netbeans.org>
|
jaroslav@152
|
35 |
*/
|
jaroslav@152
|
36 |
public class AnnotationParser {
|
jaroslav@152
|
37 |
protected AnnotationParser() {
|
jaroslav@152
|
38 |
}
|
jaroslav@152
|
39 |
|
jaroslav@152
|
40 |
protected void visitAttr(String type, String attr, String value) {
|
jaroslav@152
|
41 |
}
|
jaroslav@152
|
42 |
|
jaroslav@152
|
43 |
/** Initialize the parsing with constant pool from <code>cd</code>.
|
jaroslav@152
|
44 |
*
|
jaroslav@152
|
45 |
* @param attr the attribute defining annotations
|
jaroslav@152
|
46 |
* @param cd constant pool
|
jaroslav@152
|
47 |
* @throws IOException in case I/O fails
|
jaroslav@152
|
48 |
*/
|
jaroslav@152
|
49 |
public final void parse(byte[] attr, ClassData cd) throws IOException {
|
jaroslav@152
|
50 |
ByteArrayInputStream is = new ByteArrayInputStream(attr);
|
jaroslav@152
|
51 |
DataInputStream dis = new DataInputStream(is);
|
jaroslav@152
|
52 |
try {
|
jaroslav@152
|
53 |
read(dis, cd);
|
jaroslav@152
|
54 |
} finally {
|
jaroslav@152
|
55 |
is.close();
|
jaroslav@152
|
56 |
}
|
jaroslav@152
|
57 |
}
|
jaroslav@152
|
58 |
|
jaroslav@152
|
59 |
private void read(DataInputStream dis, ClassData cd) throws IOException {
|
jaroslav@152
|
60 |
int cnt = dis.readUnsignedShort();
|
jaroslav@152
|
61 |
for (int i = 0; i < cnt; i++) {
|
jaroslav@152
|
62 |
readAnno(dis, cd);
|
jaroslav@152
|
63 |
}
|
jaroslav@152
|
64 |
}
|
jaroslav@152
|
65 |
|
jaroslav@152
|
66 |
private void readAnno(DataInputStream dis, ClassData cd) throws IOException {
|
jaroslav@152
|
67 |
int type = dis.readUnsignedShort();
|
jaroslav@152
|
68 |
String typeName = cd.StringValue(type);
|
jaroslav@152
|
69 |
int cnt = dis.readUnsignedShort();
|
jaroslav@152
|
70 |
for (int i = 0; i < cnt; i++) {
|
jaroslav@153
|
71 |
String attrName = cd.StringValue(dis.readUnsignedShort());
|
jaroslav@153
|
72 |
readValue(dis, cd, typeName, attrName);
|
jaroslav@152
|
73 |
}
|
jaroslav@152
|
74 |
}
|
jaroslav@152
|
75 |
|
jaroslav@153
|
76 |
private void readValue(DataInputStream dis, ClassData cd, String typeName, String attrName)
|
jaroslav@152
|
77 |
throws IOException {
|
jaroslav@152
|
78 |
char type = (char)dis.readByte();
|
jaroslav@152
|
79 |
if (type == '@') {
|
jaroslav@152
|
80 |
readAnno(dis, cd);
|
jaroslav@152
|
81 |
} else if ("CFJZsSIDB".indexOf(type) >= 0) { // NOI18N
|
jaroslav@152
|
82 |
int primitive = dis.readUnsignedShort();
|
jaroslav@153
|
83 |
visitAttr(typeName, attrName, cd.StringValue(primitive));
|
jaroslav@152
|
84 |
} else if (type == 'c') {
|
jaroslav@152
|
85 |
int cls = dis.readUnsignedShort();
|
jaroslav@152
|
86 |
} else if (type == '[') {
|
jaroslav@152
|
87 |
int cnt = dis.readUnsignedShort();
|
jaroslav@152
|
88 |
for (int i = 0; i < cnt; i++) {
|
jaroslav@153
|
89 |
readValue(dis, cd, typeName, attrName);
|
jaroslav@152
|
90 |
}
|
jaroslav@152
|
91 |
} else if (type == 'e') {
|
jaroslav@152
|
92 |
int enumT = dis.readUnsignedShort();
|
jaroslav@152
|
93 |
int enumN = dis.readUnsignedShort();
|
jaroslav@152
|
94 |
} else {
|
jaroslav@152
|
95 |
throw new IOException("Unknown type " + type);
|
jaroslav@152
|
96 |
}
|
jaroslav@152
|
97 |
}
|
jaroslav@152
|
98 |
}
|