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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
#include "geocoder/index.hpp"
#include "geocoder/types.hpp"
#include "indexer/search_string_utils.hpp"
#include "base/assert.hpp"
#include "base/logging.hpp"
#include "base/string_utils.hpp"
#include <algorithm>
#include <atomic>
#include <cstddef>
#include <mutex>
#include <thread>
using namespace std;
namespace
{
// Information will be logged for every |kLogBatch| docs.
size_t const kLogBatch = 100000;
} // namespace
namespace geocoder
{
Index::Index(Hierarchy const & hierarchy, unsigned int loadThreadsCount)
: m_docs(hierarchy.GetEntries())
{
CHECK_GREATER_OR_EQUAL(loadThreadsCount, 1, ());
LOG(LINFO, ("Indexing hierarchy entries..."));
AddEntries();
LOG(LINFO, ("Indexing houses..."));
AddHouses(loadThreadsCount);
}
Index::Doc const & Index::GetDoc(DocId const id) const
{
ASSERT_LESS(static_cast<size_t>(id), m_docs.size(), ());
return m_docs[static_cast<size_t>(id)];
}
// static
string Index::MakeIndexKey(Tokens const & tokens)
{
if (tokens.size() == 1 || is_sorted(begin(tokens), end(tokens)))
return strings::JoinStrings(tokens, " ");
auto indexTokens = tokens;
sort(begin(indexTokens), end(indexTokens));
return strings::JoinStrings(indexTokens, " ");
}
void Index::AddEntries()
{
size_t numIndexed = 0;
for (DocId docId = 0; docId < static_cast<DocId>(m_docs.size()); ++docId)
{
auto const & doc = m_docs[static_cast<size_t>(docId)];
// The doc is indexed only by its address.
// todo(@m) Index it by name too.
if (doc.m_type == Type::Count)
continue;
if (doc.m_type == Type::Building)
continue;
if (doc.m_type == Type::Street)
{
AddStreet(docId, doc);
}
else
{
size_t const t = static_cast<size_t>(doc.m_type);
m_docIdsByTokens[MakeIndexKey(doc.m_address[t])].emplace_back(docId);
}
++numIndexed;
if (numIndexed % kLogBatch == 0)
LOG(LINFO, ("Indexed", numIndexed, "entries"));
}
if (numIndexed % kLogBatch != 0)
LOG(LINFO, ("Indexed", numIndexed, "entries"));
}
void Index::AddStreet(DocId const & docId, Index::Doc const & doc)
{
CHECK_EQUAL(doc.m_type, Type::Street, ());
size_t const t = static_cast<size_t>(doc.m_type);
auto isStreetSynonym = [] (string const & s) {
return search::IsStreetSynonym(strings::MakeUniString(s));
};
if (all_of(begin(doc.m_address[t]), end(doc.m_address[t]), isStreetSynonym))
{
LOG(LDEBUG, ("Undefined proper name in tokens", doc.m_address[t], "of street entry",
doc.m_osmId, "(", doc.m_address, ")"));
if (doc.m_address[t].size() > 1)
m_docIdsByTokens[MakeIndexKey(doc.m_address[t])].emplace_back(docId);
return;
}
m_docIdsByTokens[MakeIndexKey(doc.m_address[t])].emplace_back(docId);
for (size_t i = 0; i < doc.m_address[t].size(); ++i)
{
if (!isStreetSynonym(doc.m_address[t][i]))
continue;
auto addr = doc.m_address[t];
addr.erase(addr.begin() + i);
m_docIdsByTokens[MakeIndexKey(addr)].emplace_back(docId);
}
}
void Index::AddHouses(unsigned int loadThreadsCount)
{
atomic<size_t> numIndexed{0};
mutex buildingsMutex;
vector<thread> threads(loadThreadsCount);
CHECK_GREATER(threads.size(), 0, ());
for (size_t t = 0; t < threads.size(); ++t)
{
threads[t] = thread([&, t, this]() {
size_t const size = m_docs.size() / threads.size();
size_t docId = t * size;
size_t const docIdEnd = (t + 1 == threads.size() ? m_docs.size() : docId + size);
for (; docId < docIdEnd; ++docId)
{
auto const & buildingDoc = GetDoc(docId);
if (buildingDoc.m_type != Type::Building)
continue;
auto const & street = buildingDoc.m_address[static_cast<size_t>(Type::Street)];
auto const & locality = buildingDoc.m_address[static_cast<size_t>(Type::Locality)];
Tokens const * relationName = nullptr;
if (!street.empty())
relationName = &street;
else if (!locality.empty())
relationName = &locality;
if (!relationName)
continue;
ForEachDocId(*relationName, [&](DocId const & candidate) {
auto const & candidateDoc = GetDoc(candidate);
if (candidateDoc.IsParentTo(buildingDoc))
{
lock_guard<mutex> lock(buildingsMutex);
m_relatedBuildings[candidate].emplace_back(docId);
}
});
auto processedCount = numIndexed.fetch_add(1) + 1;
if (processedCount % kLogBatch == 0)
LOG(LINFO, ("Indexed", processedCount, "houses"));
}
});
}
for (auto & t : threads)
t.join();
if (numIndexed % kLogBatch != 0)
LOG(LINFO, ("Indexed", numIndexed, "houses"));
}
} // namespace geocoder
|
