Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge pull request #356 from karlnapf/master
adding new parameters
- Loading branch information
Showing
12 changed files
with
390 additions
and
151 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
157 changes: 157 additions & 0 deletions
157
examples/undocumented/libshogun/base_migration_dropping_and_new.cpp
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,157 @@ | ||
| /* | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation; either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * Written (W) 2012 Heiko Strathmann | ||
| * Copyright (C) 2012 Berlin Institute of Technology and Max-Planck-Society | ||
| */ | ||
|
|
||
| #include <shogun/base/init.h> | ||
| #include <shogun/base/Parameter.h> | ||
| #include <shogun/io/SerializableAsciiFile.h> | ||
| #include <shogun/base/ParameterMap.h> | ||
|
|
||
| using namespace shogun; | ||
|
|
||
| void print_message(FILE* target, const char* str) | ||
| { | ||
| fprintf(target, "%s", str); | ||
| } | ||
|
|
||
| class CTestClassOld : public CSGObject | ||
| { | ||
| public: | ||
| CTestClassOld() | ||
| { | ||
| m_number_to_drop=10; | ||
| m_parameters->add(&m_number_to_drop, "m_number_to_drop", ""); | ||
|
|
||
| m_number_to_keep=10; | ||
| m_parameters->add(&m_number_to_keep, "m_number_to_keep", ""); | ||
| } | ||
|
|
||
| int32_t m_number_to_drop; | ||
| int32_t m_number_to_keep; | ||
|
|
||
| virtual const char* get_name() const { return "TestClassOld"; } | ||
| }; | ||
|
|
||
| class CTestClassNew : public CSGObject | ||
| { | ||
| public: | ||
| CTestClassNew() | ||
| { | ||
| m_number=3; | ||
| m_parameters->add(&m_number, "m_number", ""); | ||
|
|
||
| m_number_new=4; | ||
| m_parameters->add(&m_number_new, "m_number_new", ""); | ||
|
|
||
| /* change name of to be kept number */ | ||
| m_parameter_map->put( | ||
| new SGParamInfo("m_number", CT_SCALAR, ST_NONE, PT_INT32, 1), | ||
| new SGParamInfo("m_number_to_keep", CT_SCALAR, ST_NONE, PT_INT32, 0) | ||
| ); | ||
|
|
||
| /* this parameter is new in this version, mapping from "nowhere" */ | ||
| m_parameter_map->put( | ||
| new SGParamInfo("m_number_new", CT_SCALAR, ST_NONE, PT_INT32, 1), | ||
| new SGParamInfo() | ||
| ); | ||
|
|
||
| /* note that dropped parameters need not be considered, just ignored */ | ||
|
|
||
| /* needed if more than one element */ | ||
| m_parameter_map->finalize_map(); | ||
| } | ||
|
|
||
| int32_t m_number; | ||
| int32_t m_number_new; | ||
|
|
||
| virtual const char* get_name() const { return "TestClassNew"; } | ||
|
|
||
| virtual TParameter* migrate(DynArray<TParameter*>* param_base, | ||
| const SGParamInfo* target) | ||
| { | ||
| SG_PRINT("entering CTestClassNew::migrate\n"); | ||
| TParameter* result=NULL; | ||
| TParameter* to_migrate=NULL; | ||
|
|
||
| if (*target==SGParamInfo("m_number", CT_SCALAR, ST_NONE, PT_INT32, 1)) | ||
| { | ||
| /* specify name change here (again, was also done in mappings) */ | ||
| char* new_name="m_number_to_keep"; | ||
| one_to_one_migration_prepare(param_base, target, result, | ||
| to_migrate, new_name); | ||
|
|
||
| /* here: simply copy data because nothing has changed */ | ||
| *((int32_t*)result->m_parameter)= | ||
| *((int32_t*)to_migrate->m_parameter); | ||
| } | ||
|
|
||
| /* note there has to be no case distinction for the new parameter */ | ||
|
|
||
| if (result) | ||
| return result; | ||
| else | ||
| return CSGObject::migrate(param_base, target); | ||
| } | ||
| }; | ||
|
|
||
| void check_equalness(CTestClassOld* old_instance, | ||
| CTestClassNew* new_instance) | ||
| { | ||
| /* number */ | ||
| SG_SPRINT("checking \"m_number\":\n"); | ||
| SG_SPRINT("\t%d==%d\n", old_instance->m_number_to_keep, | ||
| new_instance->m_number); | ||
| ASSERT(old_instance->m_number_to_keep==new_instance->m_number); | ||
|
|
||
| /* new element */ | ||
| SG_SPRINT("checking \"m_number_new\":\n"); | ||
| SG_SPRINT("\t%d\n", new_instance->m_number_new); | ||
| } | ||
|
|
||
| void test_migration() | ||
| { | ||
| const char* filename="test.txt"; | ||
|
|
||
| /* create one instance of each class */ | ||
| CTestClassOld* old_instance=new CTestClassOld(); | ||
| CTestClassNew* new_instance=new CTestClassNew(); | ||
|
|
||
| CSerializableAsciiFile* file; | ||
|
|
||
| /* serialize int instance, use custom parameter version */ | ||
| file=new CSerializableAsciiFile(filename, 'w'); | ||
| old_instance->save_serializable(file, "", 0); | ||
| file->close(); | ||
| SG_UNREF(file); | ||
|
|
||
| /* de-serialize float instance, use custom parameter version */ | ||
| file=new CSerializableAsciiFile(filename, 'r'); | ||
| new_instance->load_serializable(file, "", 1); | ||
| file->close(); | ||
| SG_UNREF(file); | ||
|
|
||
| /* assert that content is equal */ | ||
| check_equalness(old_instance, new_instance); | ||
|
|
||
| SG_UNREF(old_instance); | ||
| SG_UNREF(new_instance); | ||
| SG_UNREF(file); | ||
| } | ||
|
|
||
| int main(int argc, char **argv) | ||
| { | ||
| init_shogun(&print_message, &print_message, &print_message); | ||
|
|
||
| test_migration(); | ||
|
|
||
| exit_shogun(); | ||
|
|
||
| return 0; | ||
| } | ||
|
|
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.