1 /*
2 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24 package com.sun.classanalyzer;
25
26 import java.io.BufferedReader;
27 import java.io.File;
28 import java.io.IOException;
29 import java.io.InputStream;
30 import java.io.InputStreamReader;
31 import java.util.ArrayList;
32 import java.util.Collections;
33 import java.util.List;
34 import java.util.Set;
35 import java.util.TreeSet;
36
37 /**
38 *
39 * @author Mandy Chung
40 */
41 public class ResourceFile implements Comparable<ResourceFile> {
42
43 private final String pathname;
44 private Module module;
45
46 ResourceFile(String pathname) {
47 this.pathname = pathname.replace(File.separatorChar, '/');
48 }
49
50 Module getModule() {
51 return module;
52 }
53
54 void setModule(Module m) {
55 if (module != null) {
56 throw new RuntimeException("Module for " + this + " already set");
57 }
58 this.module = m;
59 }
60
61 String getName() {
62 return pathname;
63 }
64
65 String getPathname() {
66 return pathname;
67 }
68
69 @Override
70 public String toString() {
71 return pathname;
72 }
73
74 @Override
75 public int compareTo(ResourceFile o) {
76 return pathname.compareTo(o.pathname);
77 }
78 static Set<ResourceFile> resources = new TreeSet<ResourceFile>();
79
80 static boolean isResource(String pathname) {
81 String name = pathname.replace(File.separatorChar, '/');
82
83 if (name.endsWith("META-INF/MANIFEST.MF")) {
84 return false;
85 }
86 if (name.contains("META-INF/JCE_RSA.")) {
87 return false;
88 }
89
90 return true;
91 }
92
93 static void addResource(String name, InputStream in) {
94 ResourceFile res;
95 name = name.replace(File.separatorChar, '/');
96 if (name.startsWith("META-INF/services")) {
97 res = new ServiceProviderConfigFile(name, in);
98 } else {
99 res = new ResourceFile(name);
100 }
101 resources.add(res);
102 }
103
104 static Set<ResourceFile> getAllResources() {
105 return Collections.unmodifiableSet(resources);
106 }
107
108 static class ServiceProviderConfigFile extends ResourceFile {
109
110 private final List<String> providers = new ArrayList<String>();
111 private final String service;
112 ServiceProviderConfigFile(String pathname, InputStream in) {
113 super(pathname);
114 readServiceConfiguration(in, providers);
115 this.service = pathname.substring("META-INF/services".length() + 1, pathname.length());
116 }
117
118 @Override
119 String getName() {
120 if (providers.isEmpty()) {
121 return service;
122 } else {
123 // just use the first one for matching
124 return providers.get(0);
125 }
126 }
127
128 @SuppressWarnings("empty-statement")
129 void readServiceConfiguration(InputStream in, List<String> names) {
130 BufferedReader br = null;
131 try {
132 if (in != null) {
133 // Properties doesn't perserve the order of the input file
134 br = new BufferedReader(new InputStreamReader(in, "utf-8"));
135 int lc = 1;
136 while ((lc = parseLine(br, lc, names)) >= 0);
137 }
138 } catch (IOException ex) {
139 throw new RuntimeException(ex);
140 } finally {
141 if (br != null) {
142 try {
143 br.close();
144 } catch (IOException ex) {
145 throw new RuntimeException(ex);
146 }
147 }
148 }
149 }
150
151 // Parse a single line from the given configuration file, adding the name
152 // on the line to the names list.
153 //
154 private int parseLine(BufferedReader r, int lc, List<String> names) throws IOException {
155 String ln = r.readLine();
156 if (ln == null) {
157 return -1;
158 }
159 int ci = ln.indexOf('#');
160 if (ci >= 0) {
161 ln = ln.substring(0, ci);
162 }
163 ln = ln.trim();
164 int n = ln.length();
165 if (n != 0) {
166 if ((ln.indexOf(' ') >= 0) || (ln.indexOf('\t') >= 0)) {
167 throw new RuntimeException("Illegal configuration-file syntax");
168 }
169 int cp = ln.codePointAt(0);
170 if (!Character.isJavaIdentifierStart(cp)) {
171 throw new RuntimeException("Illegal provider-class name: " + ln);
172 }
173 for (int i = Character.charCount(cp); i < n; i += Character.charCount(cp)) {
174 cp = ln.codePointAt(i);
175 if (!Character.isJavaIdentifierPart(cp) && (cp != '.')) {
176 throw new RuntimeException("Illegal provider-class name: " + ln);
177 }
178 }
179 if (!names.contains(ln)) {
180 names.add(ln);
181 }
182 }
183 return lc + 1;
184 }
185 }
186 }