1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
#ifndef _INTERSECTOR_H_
#define _INTERSECTOR_H_
#include <memory>
#include <unordered_map>
#include <vector>
#include <boost/functional/hash.hpp>
#include "binary_search_merger.h"
#include "linear_merger.h"
using namespace std;
typedef boost::hash<vector<int> > VectorHash;
typedef unordered_map<vector<int>, vector<int>, VectorHash> Index;
class DataArray;
class MatchingComparator;
class Phrase;
class PhraseLocation;
class Precomputation;
class SuffixArray;
class Vocabulary;
class Intersector {
public:
Intersector(
shared_ptr<Vocabulary> vocabulary,
shared_ptr<Precomputation> precomputation,
shared_ptr<SuffixArray> source_suffix_array,
shared_ptr<MatchingComparator> comparator,
bool use_baeza_yates);
// For testing.
Intersector(
shared_ptr<Vocabulary> vocabulary,
shared_ptr<Precomputation> precomputation,
shared_ptr<SuffixArray> source_suffix_array,
shared_ptr<LinearMerger> linear_merger,
shared_ptr<BinarySearchMerger> binary_search_merger,
bool use_baeza_yates);
virtual ~Intersector();
virtual PhraseLocation Intersect(
const Phrase& prefix, PhraseLocation& prefix_location,
const Phrase& suffix, PhraseLocation& suffix_location,
const Phrase& phrase);
protected:
Intersector();
private:
void ConvertIndexes(shared_ptr<Precomputation> precomputation,
shared_ptr<DataArray> data_array);
vector<int> ConvertPhrase(const vector<int>& old_phrase,
shared_ptr<DataArray> data_array);
void ExtendPhraseLocation(const Phrase& phrase,
PhraseLocation& phrase_location);
shared_ptr<Vocabulary> vocabulary;
shared_ptr<SuffixArray> suffix_array;
shared_ptr<LinearMerger> linear_merger;
shared_ptr<BinarySearchMerger> binary_search_merger;
Index inverted_index;
Index collocations;
bool use_baeza_yates;
// TODO(pauldb): Don't forget to remove these.
public:
double sort_time;
double linear_merge_time;
double binary_merge_time;
};
#endif
|
