C++ API Reference for Intel® Data Analytics Acceleration Library 2018 Update 2

kdb_feature_manager.h
1 /* file: kdb_feature_manager.h */
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41 
42 /*
43 //++
44 // Implementation of the KDB data source class.
45 //--
46 */
47 #ifndef __KDB_FEATURE_MANAGER_H__
48 #define __KDB_FEATURE_MANAGER_H__
49 
50 #include "services/daal_memory.h"
51 #include "data_management/data_source/data_source.h"
52 #include "data_management/data/data_dictionary.h"
53 #include "data_management/data/numeric_table.h"
54 #include "data_management/data/homogen_numeric_table.h"
55 
56 #include <k.h>
57 
58 namespace daal
59 {
60 namespace data_management
61 {
62 
63 namespace interface1
64 {
69 class KDBFeatureManager
70 {
71 public:
72  KDBFeatureManager() : _errors(new services::ErrorCollection()) {}
73 
80  void createDictionaryFromTable(const K& table, DataSourceDictionary *dict)
81  {
82  K featureNames = kK(table)[0];
83  K featureData = kK(table)[1];
84  size_t nFeatures = featureNames->n;
85 
86  dict->setNumberOfFeatures( nFeatures );
87 
88  for(size_t i = 0; i < nFeatures; i++)
89  {
90  DataSourceFeature &feature = (*dict)[i];
91 
92  feature.setFeatureName(kS(featureNames)[i]);
93 
94  K column = kK(featureData)[i];
95 
96  switch(column->t)
97  {
98  case(KF): case(KZ):
99  feature.setType<double>();
100  break;
101  case(KE):
102  feature.setType<float>();
103  break;
104  case(KB): case(KG): case(KC):
105  feature.setType<char>();
106  break;
107  case(KH):
108  feature.setType<short>();
109  break;
110  case(KI): case(KM): case(KD): case(KU): case(KV): case(KT):
111  feature.setType<int>();
112  break;
113  case(KJ):
114  feature.setType<DAAL_INT64>();
115  break;
116  default:
117  _errors->add(services::ErrorKDBTypeUnsupported);
118  break;
119  }
120  }
121  }
122 
129  void createDictionaryFromList(const K& lst, DataSourceDictionary *dict)
130  {
131  size_t nFeatures = lst->n;
132 
133  dict->setNumberOfFeatures( nFeatures );
134 
135  for(size_t i = 0; i < nFeatures; i++)
136  {
137  DataSourceFeature &feature = (*dict)[i];
138 
139  I curType;
140 
141  if (lst->t == 0) curType = kK(lst)[i]->t; else curType = lst->t;
142 
143  if (curType < 0) curType = -curType;
144 
145  switch(curType)
146  {
147  case(KF): case(KZ):
148  feature.setType<double>();
149  break;
150  case(KE):
151  feature.setType<float>();
152  break;
153  case(KB): case(KG): case(KC):
154  feature.setType<char>();
155  break;
156  case(KH):
157  feature.setType<short>();
158  break;
159  case(KI): case(KM): case(KD): case(KU): case(KV): case(KT):
160  feature.setType<int>();
161  break;
162  case(KJ):
163  feature.setType<DAAL_INT64>();
164  break;
165  default:
166  _errors->add(services::ErrorKDBTypeUnsupported);
167  break;
168  }
169  }
170  }
171 
172  void statementResultsNumericTableFromColumnData(const K& columnData, NumericTable *nt, size_t nRows)
173  {
174  BlockDescriptor<DAAL_DATA_TYPE> block;
175  nt->getBlockOfRows(0, nRows, writeOnly, block);
176  DAAL_DATA_TYPE *blockPtr = block.getBlockPtr();
177  size_t nFeatures = nt->getNumberOfColumns();
178  for (size_t row = 0; row < nRows; row++)
179  {
180  for(size_t col = 0; col < nFeatures; col++)
181  {
182  K column = kK(columnData)[col];
183  switch(column->t)
184  {
185  case(KB):
186  blockPtr[row * nFeatures + col] = kG(column)[row];
187  break;
188  case(KG):
189  blockPtr[row * nFeatures + col] = kG(column)[row];
190  break;
191  case(KH):
192  blockPtr[row * nFeatures + col] = kH(column)[row];
193  break;
194  case(KI): case(KM): case(KD): case(KU): case(KV): case(KT):
195  blockPtr[row * nFeatures + col] = kI(column)[row];
196  break;
197  case(KJ): case(KP): case(KN):
198  blockPtr[row * nFeatures + col] = kJ(column)[row];
199  break;
200  case(KE):
201  blockPtr[row * nFeatures + col] = kE(column)[row];
202  break;
203  case(KF):
204  blockPtr[row * nFeatures + col] = kF(column)[row];
205  break;
206  default:
207  _errors->add(services::ErrorKDBTypeUnsupported);
208  break;
209  }
210  }
211  }
212  nt->releaseBlockOfRows(block);
213  }
214 
215  void statementResultsNumericTableFromList(const K& lst, NumericTable *nt, size_t nRows)
216  {
217  BlockDescriptor<DAAL_DATA_TYPE> block;
218  nt->getBlockOfRows(0, nRows, writeOnly, block);
219  DAAL_DATA_TYPE *blockPtr = block.getBlockPtr();
220  size_t nFeatures = nt->getNumberOfColumns();
221  for (size_t row = 0; row < nRows; row++)
222  {
223  K data;
224  if (lst->t == 0) data = kK(lst)[row]; else data = lst;
225  for(size_t col = 0; col < nFeatures; col++)
226  {
227  switch(data->t)
228  {
229  case(KB):
230  blockPtr[row * nFeatures + col] = kG(data)[col];
231  break;
232  case(KG):
233  blockPtr[row * nFeatures + col] = kG(data)[col];
234  break;
235  case(KH):
236  blockPtr[row * nFeatures + col] = kH(data)[col];
237  break;
238  case(KI): case(KM): case(KD): case(KU): case(KV): case(KT):
239  blockPtr[row * nFeatures + col] = kI(data)[col];
240  break;
241  case(KJ): case(KP): case(KN):
242  blockPtr[row * nFeatures + col] = kJ(data)[col];
243  break;
244  case(KE):
245  blockPtr[row * nFeatures + col] = kE(data)[col];
246  break;
247  case(KF):
248  blockPtr[row * nFeatures + col] = kF(data)[col];
249  break;
250  default:
251  _errors->add(services::ErrorKDBTypeUnsupported);
252  break;
253  }
254  }
255  if (lst->t == 0) r0(data);
256  }
257  nt->releaseBlockOfRows(block);
258  }
259 
260  services::SharedPtr<services::ErrorCollection> getErrors()
261  {
262  return _errors;
263  }
264 
265 private:
266  services::SharedPtr<services::ErrorCollection> _errors;
267 
268 };
269 
270 } // namespace interface1
271 using interface1::KDBFeatureManager;
272 
273 }
274 }
275 #endif
daal
Definition: algorithm_base_common.h:57
daal::data_management::interface1::DataSourceFeature::setType
void setType()
Definition: data_source_dictionary.h:154
daal::data_management::interface1::DataSourceFeature
Data structure that describes the Data Source feature.
Definition: data_source_dictionary.h:75
daal::data_management::interface1::KDBFeatureManager
Contains KDB-specific commands.
Definition: kdb_feature_manager.h:69
daal::data_management::interface1::BlockDescriptor::getBlockPtr
DataType * getBlockPtr() const
Definition: numeric_table.h:95
daal::data_management::interface1::DataSourceFeature::setFeatureName
void setFeatureName(const std::string &featureName)
Definition: data_source_dictionary.h:138
daal::services::interface1::ErrorCollection
Class that represents an error collection.
Definition: error_handling.h:338
daal::services::interface1::SharedPtr
Shared pointer that retains shared ownership of an object through a pointer. Several SharedPtr object...
Definition: daal_shared_ptr.h:187
daal::data_management::interface1::KDBFeatureManager::createDictionaryFromList
void createDictionaryFromList(const K &lst, DataSourceDictionary *dict)
Definition: kdb_feature_manager.h:129
daal::algorithms::association_rules::data
Definition: apriori_types.h:107
daal::data_management::interface1::NumericTable
Class for a data management component responsible for representation of data in the numeric format...
Definition: numeric_table.h:600
daal::data_management::interface1::Dictionary::setNumberOfFeatures
virtual services::Status setNumberOfFeatures(size_t numberOfFeatures)
Definition: data_dictionary.h:289
daal::services::ErrorKDBTypeUnsupported
Definition: error_indexes.h:409
daal::data_management::interface1::BlockDescriptor< DAAL_DATA_TYPE >
daal::data_management::interface1::DenseNumericTableIface::releaseBlockOfRows
virtual services::Status releaseBlockOfRows(BlockDescriptor< double > &block)=0
daal::data_management::interface1::NumericTable::getNumberOfColumns
size_t getNumberOfColumns() const
Definition: numeric_table.h:677
daal::data_management::interface1::KDBFeatureManager::createDictionaryFromTable
void createDictionaryFromTable(const K &table, DataSourceDictionary *dict)
Definition: kdb_feature_manager.h:80
daal::data_management::interface1::DenseNumericTableIface::getBlockOfRows
virtual services::Status getBlockOfRows(size_t vector_idx, size_t vector_num, ReadWriteMode rwflag, BlockDescriptor< double > &block)=0
daal::data_management::interface1::Dictionary
Class that represents a dictionary of a data set and provides methods to work with the data dictionar...
Definition: data_dictionary.h:184

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