Remove original version of the intersector.

1 files changed, 0 insertions, 154 deletions

diff --git a/extractor/intersector.cc b/extractor/intersector.cc
deleted file mode 100644
index 39a7648d..00000000
--- a/extractor/intersector.cc
+++ /dev/null
@@ -1,154 +0,0 @@
-#include "intersector.h"
-
-#include "data_array.h"
-#include "matching_comparator.h"
-#include "phrase.h"
-#include "phrase_location.h"
-#include "precomputation.h"
-#include "suffix_array.h"
-#include "veb.h"
-#include "vocabulary.h"
-
-Intersector::Intersector(shared_ptr<Vocabulary> vocabulary,
-                         shared_ptr<Precomputation> precomputation,
-                         shared_ptr<SuffixArray> suffix_array,
-                         shared_ptr<MatchingComparator> comparator,
-                         bool use_baeza_yates) :
-    vocabulary(vocabulary),
-    suffix_array(suffix_array),
-    use_baeza_yates(use_baeza_yates) {
-  shared_ptr<DataArray> data_array = suffix_array->GetData();
-  linear_merger = make_shared<LinearMerger>(vocabulary, data_array, comparator);
-  binary_search_merger = make_shared<BinarySearchMerger>(
-      vocabulary, linear_merger, data_array, comparator);
-  ConvertIndexes(precomputation, data_array);
-}
-
-Intersector::Intersector(shared_ptr<Vocabulary> vocabulary,
-                         shared_ptr<Precomputation> precomputation,
-                         shared_ptr<SuffixArray> suffix_array,
-                         shared_ptr<LinearMerger> linear_merger,
-                         shared_ptr<BinarySearchMerger> binary_search_merger,
-                         bool use_baeza_yates) :
-    vocabulary(vocabulary),
-    suffix_array(suffix_array),
-    linear_merger(linear_merger),
-    binary_search_merger(binary_search_merger),
-    use_baeza_yates(use_baeza_yates) {
-  ConvertIndexes(precomputation, suffix_array->GetData());
-}
-
-Intersector::Intersector() {}
-
-Intersector::~Intersector() {}
-
-void Intersector::ConvertIndexes(shared_ptr<Precomputation> precomputation,
-                                 shared_ptr<DataArray> data_array) {
-  const Index& precomputed_index = precomputation->GetInvertedIndex();
-  for (pair<vector<int>, vector<int> > entry: precomputed_index) {
-    vector<int> phrase = ConvertPhrase(entry.first, data_array);
-    inverted_index[phrase] = entry.second;
-
-    phrase.push_back(vocabulary->GetNonterminalIndex(1));
-    inverted_index[phrase] = entry.second;
-    phrase.pop_back();
-    phrase.insert(phrase.begin(), vocabulary->GetNonterminalIndex(1));
-    inverted_index[phrase] = entry.second;
-  }
-
-  const Index& precomputed_collocations = precomputation->GetCollocations();
-  for (pair<vector<int>, vector<int> > entry: precomputed_collocations) {
-    vector<int> phrase = ConvertPhrase(entry.first, data_array);
-    collocations[phrase] = entry.second;
-  }
-}
-
-vector<int> Intersector::ConvertPhrase(const vector<int>& old_phrase,
-                                       shared_ptr<DataArray> data_array) {
-  vector<int> new_phrase;
-  new_phrase.reserve(old_phrase.size());
-
-  int arity = 0;
-  for (int word_id: old_phrase) {
-    if (word_id == Precomputation::NON_TERMINAL) {
-      ++arity;
-      new_phrase.push_back(vocabulary->GetNonterminalIndex(arity));
-    } else {
-      new_phrase.push_back(
-          vocabulary->GetTerminalIndex(data_array->GetWord(word_id)));
-    }
-  }
-
-  return new_phrase;
-}
-
-PhraseLocation Intersector::Intersect(
-    const Phrase& prefix, PhraseLocation& prefix_location,
-    const Phrase& suffix, PhraseLocation& suffix_location,
-    const Phrase& phrase) {
-  vector<int> symbols = phrase.Get();
-
-  // We should never attempt to do an intersect query for a pattern starting or
-  // ending with a non terminal. The RuleFactory should handle these cases,
-  // initializing the matchings list with the one for the pattern without the
-  // starting or ending terminal.
-  assert(vocabulary->IsTerminal(symbols.front())
-      && vocabulary->IsTerminal(symbols.back()));
-
-  if (collocations.count(symbols)) {
-    return PhraseLocation(collocations[symbols], phrase.Arity() + 1);
-  }
-
-  vector<int> locations;
-  ExtendPhraseLocation(prefix, prefix_location);
-  ExtendPhraseLocation(suffix, suffix_location);
-  shared_ptr<vector<int> > prefix_matchings = prefix_location.matchings;
-  shared_ptr<vector<int> > suffix_matchings = suffix_location.matchings;
-  int prefix_subpatterns = prefix_location.num_subpatterns;
-  int suffix_subpatterns = suffix_location.num_subpatterns;
-  if (use_baeza_yates) {
-    binary_search_merger->Merge(locations, phrase, suffix,
-        prefix_matchings->begin(), prefix_matchings->end(),
-        suffix_matchings->begin(), suffix_matchings->end(),
-        prefix_subpatterns, suffix_subpatterns);
-  } else {
-    linear_merger->Merge(locations, phrase, suffix, prefix_matchings->begin(),
-        prefix_matchings->end(), suffix_matchings->begin(),
-        suffix_matchings->end(), prefix_subpatterns, suffix_subpatterns);
-  }
-  return PhraseLocation(locations, phrase.Arity() + 1);
-}
-
-void Intersector::ExtendPhraseLocation(
-    const Phrase& phrase, PhraseLocation& phrase_location) {
-  int low = phrase_location.sa_low, high = phrase_location.sa_high;
-  if (phrase_location.matchings != NULL) {
-    return;
-  }
-
-
-  phrase_location.num_subpatterns = 1;
-  phrase_location.sa_low = phrase_location.sa_high = 0;
-
-  vector<int> symbols = phrase.Get();
-  if (inverted_index.count(symbols)) {
-    phrase_location.matchings =
-        make_shared<vector<int> >(inverted_index[symbols]);
-    return;
-  }
-
-  vector<int> matchings;
-  matchings.reserve(high - low + 1);
-  shared_ptr<VEB> veb = VEB::Create(suffix_array->GetSize());
-  for (int i = low; i < high; ++i) {
-    veb->Insert(suffix_array->GetSuffix(i));
-  }
-
-  int value = veb->GetMinimum();
-  while (value != -1) {
-    matchings.push_back(value);
-    value = veb->GetSuccessor(value);
-  }
-
-  phrase_location.matchings = make_shared<vector<int> >(matchings);
-}