1 /*
   2  * Copyright (c) 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.
   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 
  25 #ifndef SHARE_VM_CLASSFILE_CLASSLOADEREXT_HPP
  26 #define SHARE_VM_CLASSFILE_CLASSLOADEREXT_HPP
  27 
  28 #include "classfile/classLoader.hpp"
  29 
  30 class ClassLoaderExt: public ClassLoader { // AllStatic
  31 public:
  32 
  33   class Context {
  34     const char* _file_name;
  35   public:
  36     Context(const char* class_name, const char* file_name, TRAPS) {
  37       _file_name = file_name;
  38     }
  39 
  40     bool check(ClassFileStream* stream, const int classpath_index) {
  41       return true;
  42     }
  43 
  44     bool should_verify(int classpath_index) {
  45       return false;
  46     }
  47 
  48     instanceKlassHandle record_result(const int classpath_index,
  49                                       ClassPathEntry* e, instanceKlassHandle result, TRAPS) {
  50       if (ClassLoader::add_package(_file_name, classpath_index, THREAD)) {
  51         if (DumpSharedSpaces) {
  52           result->set_shared_classpath_index(classpath_index);
  53         }
  54         return result;
  55       } else {
  56         return instanceKlassHandle(); // NULL
  57       }
  58     }
  59   };
  60 
  61 
  62   static void add_class_path_entry(const char* path, bool check_for_duplicates,
  63                                    ClassPathEntry* new_entry) {
  64     ClassLoader::add_to_list(new_entry);
  65   }
  66   static void setup_search_paths() {}
  67 
  68   static void init_lookup_cache(TRAPS) {}
  69   static void copy_lookup_cache_to_archive(char** top, char* end) {}
  70   static char* restore_lookup_cache_from_archive(char* buffer) {return buffer;}
  71   static inline bool is_lookup_cache_enabled() {return false;}
  72 
  73   static bool known_to_not_exist(JNIEnv *env, jobject loader, const char *classname, TRAPS) {return false;}
  74   static jobjectArray get_lookup_cache_urls(JNIEnv *env, jobject loader, TRAPS) {return NULL;}
  75   static jintArray get_lookup_cache(JNIEnv *env, jobject loader, const char *pkgname, TRAPS) {return NULL;}
  76 };
  77 
  78 #endif // SHARE_VM_CLASSFILE_CLASSLOADEREXT_HPP