cdsa/cssm/attachfactory.h

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18
  19 //
  20 // attachfactory - industrial grade production of Attachment objects
  21 //
  22 #ifndef _H_ATTACHFACTORY
  23 #define _H_ATTACHFACTORY
  24
  25 #include "cssmint.h"
  26 #include "attachment.h"
  27
  28 #ifdef _CPP_ATTACHFACTORY
  29 # pragma export on
  30 #endif
  31
  32
  33 //
  34 // An AttachmentMaker can create an Attachment object for a particular service
  35 // type when asked nicely.
  36 //
  37 class AttachmentMaker {
  38 public:
  39     AttachmentMaker(CSSM_SERVICE_TYPE type) : mType(type) { }
  40     virtual ~AttachmentMaker();
  41
  42     virtual Attachment *make(Module *module,
  43                              const CSSM_VERSION &version,
  44                              uint32 subserviceId,
  45                              CSSM_SERVICE_TYPE subserviceType,
  46                              const CSSM_API_MEMORY_FUNCS &memoryOps,
  47                              CSSM_ATTACH_FLAGS attachFlags,
  48                              CSSM_KEY_HIERARCHY keyHierarchy,
  49                              CSSM_FUNC_NAME_ADDR *functionTable,
  50                              uint32 functionTableSize) = 0;
  51
  52     CSSM_SERVICE_TYPE factoryType() const { return mType; }
  53
  54 private:
  55     CSSM_SERVICE_TYPE mType;
  56 };
  57
  58
  59 //
  60 // An AttachmentFactory contains a registry of AttachmentMakers for different
  61 // service types, and produces the needed one on request.
  62 //
  63 class AttachmentFactory {
  64 public:
  65     AttachmentFactory();
  66
  67     AttachmentMaker *attachmentMakerFor(CSSM_SERVICE_TYPE type) const;
  68
  69 private:
  70     typedef map<CSSM_SERVICE_TYPE, AttachmentMaker *> AttachFactories;
  71     AttachFactories factories;
  72 };
  73
  74 #ifdef _CPP_ATTACHFACTORY
  75 # pragma export off
  76 #endif
  77
  78
  79 #endif //_H_ATTACHFACTORY