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   * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.  Oracle designates this
   * particular file as subject to the "Classpath" exception as provided
   * by Oracle in the LICENSE file that accompanied this code.
   *
   * This code is distributed in the hope that it will be useful, but WITHOUT
   * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   * version 2 for more details (a copy is included in the LICENSE file that
   * accompanied this code).
   *
   * You should have received a copy of the GNU General Public License version
   * 2 along with this work; if not, write to the Free Software Foundation,
   * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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   * questions.
   */
  
  package openjdk.tools.jdeps;
  
  import java.io.IOException;
  import java.lang.module.ModuleDescriptor;
  import java.util.Arrays;
  import java.util.Comparator;
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Map;
  import java.util.Set;
  
  /**
   * Build the profile information.
   */
  enum Profile {
      COMPACT1("compact1", 1, "java.logging",
                              "java.scripting"),
      COMPACT2("compact2", 2, "java.rmi",
                              "java.sql",
                              "java.xml",
                              "jdk.xml.dom",
                              "jdk.httpserver"),
      COMPACT3("compact3", 3, "java.smartcardio",
                              "java.compiler",
                              "java.instrument",
                              "java.management",
                              "java.naming",
                              "java.prefs",
                              "java.security.jgss",
                              "java.security.sasl",
                              "java.sql.rowset",
                              "java.xml.crypto",
                              "jdk.management",
                              "jdk.naming.dns",
                              "jdk.naming.rmi",
                              "jdk.sctp",
                              "jdk.security.auth");
  
      final String name;
      final int profile;
      final String[] mnames;
      final Map<String, Module> modules = new HashMap<>();
  
      Profile(String name, int profile, String... mnames) {
          this.name = name;
          this.profile = profile;
          this.mnames = mnames;
      }
  
      public String profileName() {
          return name;
      }
  
      @Override
      public String toString() {
          return mnames[0];
      }
  
      public static int getProfileCount() {
          return JDK.isEmpty() ? 0 : Profile.values().length;
      }
  
      /**
       * Returns the Profile for the given package name; null if not found.
       */
      public static Profile getProfile(String pn) {
          for (Profile p : Profile.values()) {
              for (Module m : p.modules.values()) {
                  if (m.packages().contains(pn)) {
                      return p;
                  }
              }
          }
          return null;
      }
  
      /*
       * Returns the Profile for a given Module; null if not found.
       */
      public static Profile getProfile(Module m) {
          for (Profile p : Profile.values()) {
              if (p.modules.containsValue(m)) {
                  return p;
              }
          }
          return null;
      }
  
      private final static Set<Module> JDK = new HashSet<>();
      static synchronized void init(Map<String, Module> systemModules) {
          Arrays.stream(Profile.values()).forEach(p ->
              // this includes platform-dependent module that may not exist
              Arrays.stream(p.mnames)
                    .filter(systemModules::containsKey)
                    .map(systemModules::get)
                    .forEach(m -> p.addModule(systemModules, m)));
  
          // JDK modules should include full JRE plus other jdk.* modules
          // Just include all installed modules.  Assume jdeps is running
          // in JDK image
          JDK.addAll(systemModules.values());
      }
  
      private void addModule(Map<String, Module> systemModules, Module module) {
          modules.put(module.name(), module);
          module.descriptor().requires().stream()
                .map(ModuleDescriptor.Requires::name)
                .map(systemModules::get)
                .forEach(m -> modules.put(m.name(), m));
      }
  
      // for debugging
      public static void main(String[] args) throws IOException {
          // initialize Profiles
          new JdepsConfiguration.Builder().addmods(Set.of("ALL-SYSTEM")).build();
  
          // find platform modules
          if (Profile.getProfileCount() == 0) {
              System.err.println("No profile is present in this JDK");
          }
          for (Profile p : Profile.values()) {
              String profileName = p.name;
              System.out.format("%2d: %-10s  %s%n", p.profile, profileName, p.modules);
          }
          System.out.println("All JDK modules:-");
          JDK.stream().sorted(Comparator.comparing(Module::name))
             .forEach(System.out::println);
      }
  }
  