1 /*

     2  * Copyright (c) 2006, 2014, 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 

    26 package com.sun.tools.javac.sym;

    27 

    28 import java.io.BufferedInputStream;

    29 import java.io.BufferedWriter;

    30 import java.io.File;

    31 import java.io.FileInputStream;

    32 import java.io.FileWriter;

    33 import java.io.IOException;

    34 import java.nio.charset.Charset;

    35 import java.nio.file.Files;

    36 import java.util.HashMap;

    37 import java.util.Map;

    38 import java.util.Properties;

    39 import java.util.Set;

    40 import java.util.TreeMap;

    41 import java.util.TreeSet;

    42 

    43 import com.sun.tools.javac.util.Assert;

    44 

    45 /**

    46  * Provide details about profile contents.

    47  *

    48  * <p><b>This is NOT part of any supported API.

    49  * If you write code that depends on this, you do so at your own

    50  * risk.  This code and its internal interfaces are subject to change

    51  * or deletion without notice.</b></p>

    52  */

    53 public abstract class Profiles {

    54     // for debugging

    55     public static void main(String[] args) throws IOException {

    56         Profiles p = Profiles.read(new File(args[0]));

    57         if (args.length >= 2) {

    58             Map<Integer,Set<String>> lists = new TreeMap<>();

    59             for (int i = 1; i <= 4; i++)

    60                 lists.put(i, new TreeSet<String>());

    61 

    62             File rt_jar_lst = new File(args[1]);

    63             for (String line: Files.readAllLines(rt_jar_lst.toPath(), Charset.defaultCharset())) {

    64                 if (line.endsWith(".class")) {

    65                     String type = line.substring(0, line.length() - 6);

    66                     int profile = p.getProfile(type);

    67                     for (int i = profile; i <= 4; i++)

    68                         lists.get(i).add(type);

    69                 }

    70             }

    71 

    72             for (int i = 1; i <= 4; i++) {

    73                 try (BufferedWriter out = new BufferedWriter(new FileWriter(i + ".txt"))) {

    74                     for (String type : lists.get(i)) {

    75                         out.write(type);

    76                         out.newLine();

    77                     }

    78                 }

    79             }

    80         }

    81     }

    82 

    83     public static Profiles read(File file) throws IOException {

    84         try (BufferedInputStream in = new BufferedInputStream(new FileInputStream(file))) {

    85             Properties p = new Properties();

    86             p.load(in);

    87             if (p.containsKey("java/lang/Object"))

    88                 return new SimpleProfiles(p);

    89             else

    90                 return new MakefileProfiles(p);

    91         }

    92     }

    93 

    94     public abstract int getProfileCount();

    95 

    96     public abstract int getProfile(String typeName);

    97 

    98     public abstract Set<String> getPackages(int profile);

    99 

   100     private static class MakefileProfiles extends Profiles {

   101         static class Package {

   102             final Package parent;

   103             final String name;

   104 

   105             Map<String, Package> subpackages = new TreeMap<>();

   106 

   107             int profile;

   108             Map<String, Integer> includedTypes = new TreeMap<>();

   109             Map<String, Integer> excludedTypes = new TreeMap<>();

   110 

   111             Package(Package parent, String name) {

   112                 this.parent = parent;

   113                 this.name = name;

   114             }

   115 

   116             int getProfile() {

   117                 return (parent == null) ? profile : Math.max(parent.getProfile(), profile);

   118             }

   119 

   120             int getProfile(String simpleTypeName) {

   121                 Integer i;

   122                 if ((i = includedTypes.get(simpleTypeName)) != null)

   123                     return i;

   124                 if ((i = includedTypes.get("*")) != null)

   125                     return i;

   126                 if ((i = excludedTypes.get(simpleTypeName)) != null)

   127                     return i + 1;

   128                 if ((i = excludedTypes.get("*")) != null)

   129                     return i + 1;

   130                 return getProfile();

   131             }

   132 

   133             String getName() {

   134                 return (parent == null) ? name : (parent.getName() + "/" + name);

   135             }

   136 

   137             void getPackages(int profile, Set<String> results) {

   138                 int prf = getProfile();

   139                 if (prf != 0 && profile >= prf)

   140                     results.add(getName());

   141                 for (Package pkg: subpackages.values())

   142                     pkg.getPackages(profile, results);

   143             }

   144         }

   145 

   146         final Map<String, Package> packages = new TreeMap<>();

   147 

   148         final int maxProfile = 4;  // Three compact profiles plus full JRE

   149 

   150         MakefileProfiles(Properties p) {

   151             // consider crypto, only if java/lang package exists

   152             boolean foundJavaLang = false;

   153             for (int profile = 1; profile <= maxProfile; profile++) {

   154                 String prefix = (profile < maxProfile ? "PROFILE_" + profile : "FULL_JRE");

   155                 String inclPackages = p.getProperty(prefix + "_RTJAR_INCLUDE_PACKAGES");

   156                 if (inclPackages == null)

   157                     break;

   158                 for (String pkg: inclPackages.substring(1).trim().split("\\s+")) {

   159                     if (pkg.endsWith("/"))

   160                         pkg = pkg.substring(0, pkg.length() - 1);

   161                     if (foundJavaLang == false && pkg.equals("java/lang"))

   162                         foundJavaLang = true;

   163                     includePackage(profile, pkg);

   164                 }

   165                 String inclTypes =  p.getProperty(prefix + "_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(prefix + "_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             }

   180             /*

   181              * A hack to force javax/crypto package into the compact1 profile,

   182              * because this package exists in jce.jar, and therefore not in

   183              * ct.sym. Note javax/crypto should exist in a profile along with

   184              * javax/net/ssl package. Thus, this package is added to compact1,

   185              * implying that it should exist in all three profiles.

   186              */

   187             if (foundJavaLang)

   188                 includePackage(1, "javax/crypto");

   189         }

   190 

   191         @Override

   192         public int getProfileCount() {

   193             return maxProfile;

   194         }

   195 

   196         @Override

   197         public int getProfile(String typeName) {

   198             int sep = typeName.lastIndexOf("/");

   199             String packageName = typeName.substring(0, sep);

   200             String simpleName = typeName.substring(sep + 1);

   201 

   202             Package p = getPackage(packageName);

   203             return p.getProfile(simpleName);

   204         }

   205 

   206         @Override

   207         public Set<String> getPackages(int profile) {

   208             Set<String> results = new TreeSet<>();

   209             for (Package p: packages.values())

   210                 p.getPackages(profile, results);

   211             return results;

   212         }

   213 

   214         private void includePackage(int profile, String packageName) {

   215 //            System.err.println("include package " + packageName);

   216             Package p = getPackage(packageName);

   217             Assert.check(p.profile == 0);

   218             p.profile = profile;

   219         }

   220 

   221         private void includeType(int profile, String typeName) {

   222 //            System.err.println("include type " + typeName);

   223             int sep = typeName.lastIndexOf("/");

   224             String packageName = typeName.substring(0, sep);

   225             String simpleName = typeName.substring(sep + 1);

   226 

   227             Package p = getPackage(packageName);

   228             Assert.check(!p.includedTypes.containsKey(simpleName));

   229             p.includedTypes.put(simpleName, profile);

   230         }

   231 

   232         private void excludeType(int profile, String typeName) {

   233 //            System.err.println("exclude type " + typeName);

   234             int sep = typeName.lastIndexOf("/");

   235             String packageName = typeName.substring(0, sep);

   236             String simpleName = typeName.substring(sep + 1);

   237 

   238             Package p = getPackage(packageName);

   239             Assert.check(!p.excludedTypes.containsKey(simpleName));

   240             p.excludedTypes.put(simpleName, profile);

   241         }

   242 

   243         private Package getPackage(String packageName) {

   244             int sep = packageName.lastIndexOf("/");

   245             Package parent;

   246             Map<String, Package> parentSubpackages;

   247             String simpleName;

   248             if (sep == -1) {

   249                 parent = null;

   250                 parentSubpackages = packages;

   251                 simpleName = packageName;

   252             } else {

   253                 parent = getPackage(packageName.substring(0, sep));

   254                 parentSubpackages = parent.subpackages;

   255                 simpleName = packageName.substring(sep + 1);

   256             }

   257 

   258             Package p = parentSubpackages.get(simpleName);

   259             if (p == null) {

   260                 parentSubpackages.put(simpleName, p = new Package(parent, simpleName));

   261             }

   262             return p;

   263         }

   264     }

   265 

   266     private static class SimpleProfiles extends Profiles {

   267         private final Map<String, Integer> map;

   268         private final int profileCount;

   269 

   270         SimpleProfiles(Properties p) {

   271             int max = 0;

   272             map = new HashMap<>();

   273             for (Map.Entry<Object,Object> e: p.entrySet()) {

   274                 String typeName = (String) e.getKey();

   275                 int profile = Integer.valueOf((String) e.getValue());

   276                 map.put(typeName, profile);

   277                 max = Math.max(max, profile);

   278             }

   279             profileCount = max;

   280         }

   281 

   282         @Override

   283         public int getProfileCount() {

   284             return profileCount;

   285         }

   286 

   287         @Override

   288         public int getProfile(String typeName) {

   289             return map.get(typeName);

   290         }

   291 

   292         @Override

   293         public Set<String> getPackages(int profile) {

   294             Set<String> results = new TreeSet<>();

   295             for (Map.Entry<String,Integer> e: map.entrySet()) {

   296                 String tn = e.getKey();

   297                 int prf = e.getValue();

   298                 int sep = tn.lastIndexOf("/");

   299                 if (sep > 0 && profile >= prf)

   300                     results.add(tn);

   301             }

   302             return results;

   303         }

   304     }

   305 }