1 /*
2 * Copyright (c) 2006, 2013, 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. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25 package com.sun.tools.javac.sym;
26
27 import java.io.BufferedInputStream;
28 import java.io.BufferedWriter;
29 import java.io.File;
30 import java.io.FileInputStream;
31 import java.io.FileWriter;
32 import java.io.IOException;
33 import java.nio.charset.Charset;
34 import java.nio.file.Files;
35 import java.util.HashMap;
36 import java.util.Map;
37 import java.util.Properties;
38 import java.util.Set;
39 import java.util.TreeMap;
40 import java.util.TreeSet;
41
42 import com.sun.tools.javac.util.Assert;
43
44 /**
45 * Provide details about profile contents.
46 *
47 * <p><b>This is NOT part of any supported API.
48 * If you write code that depends on this, you do so at your own
49 * risk. This code and its internal interfaces are subject to change
50 * or deletion without notice.</b></p>
51 */
52 public abstract class Profiles {
53 // for debugging
54 public static void main(String[] args) throws IOException {
55 Profiles p = Profiles.read(new File(args[0]));
56 if (args.length >= 2) {
57 Map<Integer,Set<String>> lists = new TreeMap<Integer,Set<String>>();
58 for (int i = 1; i <= 4; i++)
59 lists.put(i, new TreeSet<String>());
60
61 File rt_jar_lst = new File(args[1]);
62 for (String line: Files.readAllLines(rt_jar_lst.toPath(), Charset.defaultCharset())) {
63 if (line.endsWith(".class")) {
64 String type = line.substring(0, line.length() - 6);
65 int profile = p.getProfile(type);
66 for (int i = profile; i <= 4; i++)
67 lists.get(i).add(type);
68 }
69 }
70
71 for (int i = 1; i <= 4; i++) {
72 BufferedWriter out = new BufferedWriter(new FileWriter(i + ".txt"));
73 try {
74 for (String type: lists.get(i)) {
75 out.write(type);
76 out.newLine();
77 }
78 } finally {
79 out.close();
80 }
81 }
82 }
83 }
84
85 public static Profiles read(File file) throws IOException {
86 BufferedInputStream in = new BufferedInputStream(new FileInputStream(file));
87 try {
88 Properties p = new Properties();
89 p.load(in);
90 if (p.containsKey("java/lang/Object"))
91 return new SimpleProfiles(p);
92 else
93 return new MakefileProfiles(p);
94 } finally {
95 in.close();
96 }
97 }
98
99 public abstract int getProfileCount();
100
101 public abstract int getProfile(String typeName);
102
103 public abstract Set<String> getPackages(int profile);
104
105 private static class MakefileProfiles extends Profiles {
106 static class Package {
107 final Package parent;
108 final String name;
109
110 Map<String, Package> subpackages = new TreeMap<String, Package>();
111
112 int profile;
113 Map<String, Integer> includedTypes = new TreeMap<String,Integer>();
114 Map<String, Integer> excludedTypes = new TreeMap<String,Integer>();
115
116 Package(Package parent, String name) {
117 this.parent = parent;
118 this.name = name;
119 }
120
121 int getProfile() {
122 return (parent == null) ? profile : Math.max(parent.getProfile(), profile);
123 }
124
125 int getProfile(String simpleTypeName) {
126 Integer i;
127 if ((i = includedTypes.get(simpleTypeName)) != null)
128 return i;
129 if ((i = includedTypes.get("*")) != null)
130 return i;
131 if ((i = excludedTypes.get(simpleTypeName)) != null)
132 return i + 1;
133 if ((i = excludedTypes.get("*")) != null)
134 return i + 1;
135 return getProfile();
136 }
137
138 String getName() {
139 return (parent == null) ? name : (parent.getName() + "/" + name);
140 }
141
142 void getPackages(int profile, Set<String> results) {
143 int prf = getProfile();
144 if (prf != 0 && profile >= prf)
145 results.add(getName());
146 for (Package pkg: subpackages.values())
147 pkg.getPackages(profile, results);
148 }
149 }
150
151 final static Map<String, Package> packages = new TreeMap<String, Package>();
152 int maxProfile;
153
154 MakefileProfiles(Properties p) {
155 int profile = 1;
156 while (true) {
157 String inclPackages = p.getProperty("PROFILE_" + profile + "_RTJAR_INCLUDE_PACKAGES");
158 if (inclPackages == null)
159 break;
160 for (String pkg: inclPackages.substring(1).trim().split("\\s+")) {
161 if (pkg.endsWith("/"))
162 pkg = pkg.substring(0, pkg.length() - 1);
163 includePackage(profile, pkg);
164 }
165 String inclTypes = p.getProperty("PROFILE_" + profile + "_RTJAR_INCLUDE_TYPES");
166 if (inclTypes != null) {
167 for (String type: inclTypes.replace("$$", "$").split("\\s+")) {
168 if (type.endsWith(".class"))
169 includeType(profile, type.substring(0, type.length() - 6));
170 }
171 }
172 String exclTypes = p.getProperty("PROFILE_" + profile + "_RTJAR_EXCLUDE_TYPES");
173 if (exclTypes != null) {
174 for (String type: exclTypes.replace("$$", "$").split("\\s+")) {
175 if (type.endsWith(".class"))
176 excludeType(profile, type.substring(0, type.length() - 6));
177 }
178 }
179 maxProfile = profile;
180 profile++;
181 }
182 }
183
184 @Override
185 public int getProfileCount() {
186 return maxProfile;
187 }
188
189 @Override
190 public int getProfile(String typeName) {
191 int sep = typeName.lastIndexOf("/");
192 String packageName = typeName.substring(0, sep);
193 String simpleName = typeName.substring(sep + 1);
194
195 Package p = getPackage(packageName);
196 return p.getProfile(simpleName);
197 }
198
199 @Override
200 public Set<String> getPackages(int profile) {
201 Set<String> results = new TreeSet<String>();
202 for (Package p: packages.values())
203 p.getPackages(profile, results);
204 return results;
205 }
206
207 private void includePackage(int profile, String packageName) {
208 // System.err.println("include package " + packageName);
209 Package p = getPackage(packageName);
210 Assert.check(p.profile == 0);
211 p.profile = profile;
212 }
213
214 private void includeType(int profile, String typeName) {
215 // System.err.println("include type " + typeName);
216 int sep = typeName.lastIndexOf("/");
217 String packageName = typeName.substring(0, sep);
218 String simpleName = typeName.substring(sep + 1);
219
220 Package p = getPackage(packageName);
221 Assert.check(!p.includedTypes.containsKey(simpleName));
222 p.includedTypes.put(simpleName, profile);
223 }
224
225 private void excludeType(int profile, String typeName) {
226 // System.err.println("exclude type " + typeName);
227 int sep = typeName.lastIndexOf("/");
228 String packageName = typeName.substring(0, sep);
229 String simpleName = typeName.substring(sep + 1);
230
231 Package p = getPackage(packageName);
232 Assert.check(!p.excludedTypes.containsKey(simpleName));
233 p.excludedTypes.put(simpleName, profile);
234 }
235
236 private Package getPackage(String packageName) {
237 int sep = packageName.lastIndexOf("/");
238 Package parent;
239 Map<String, Package> parentSubpackages;
240 String simpleName;
241 if (sep == -1) {
242 parent = null;
243 parentSubpackages = packages;
244 simpleName = packageName;
245 } else {
246 parent = getPackage(packageName.substring(0, sep));
247 parentSubpackages = parent.subpackages;
248 simpleName = packageName.substring(sep + 1);
249 }
250
251 Package p = parentSubpackages.get(simpleName);
252 if (p == null) {
253 parentSubpackages.put(simpleName, p = new Package(parent, simpleName));
254 }
255 return p;
256 }
257 }
258
259 private static class SimpleProfiles extends Profiles {
260 private final Map<String, Integer> map;
261 private final int profileCount;
262
263 SimpleProfiles(Properties p) {
264 int max = 0;
265 map = new HashMap<String, Integer>();
266 for (Map.Entry<Object,Object> e: p.entrySet()) {
267 String typeName = (String) e.getKey();
268 int profile = Integer.valueOf((String) e.getValue());
269 map.put(typeName, profile);
270 max = Math.max(max, profile);
271 }
272 profileCount = max;
273 }
274
275 @Override
276 public int getProfileCount() {
277 return profileCount;
278 }
279
280 @Override
281 public int getProfile(String typeName) {
282 return map.get(typeName);
283 }
284
285 @Override
286 public Set<String> getPackages(int profile) {
287 Set<String> results = new TreeSet<String>();
288 for (Map.Entry<String,Integer> e: map.entrySet()) {
289 String tn = e.getKey();
290 int prf = e.getValue();
291 int sep = tn.lastIndexOf("/");
292 if (sep > 0 && profile >= prf)
293 results.add(tn);
294 }
295 return results;
296 }
297 }
298 }