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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
/*
* Copyright (C) 2003-2006 Ben van Klinken and the CLucene Team
*
* Distributable under the terms of either the Apache License (Version 2.0) or
* the GNU Lesser General Public License, as specified in the COPYING file.
*
* Changes are Copyright(C) 2007, 2008 by Nokia Corporation and/or its subsidiary(-ies), all rights reserved.
*/
#include "CLucene/StdHeader.h"
#include "IndexModifier.h"
#include "Term.h"
#include "IndexWriter.h"
#include "IndexReader.h"
CL_NS_DEF(index)
CL_NS_USE(util)
CL_NS_USE(store)
CL_NS_USE(analysis)
CL_NS_USE(document)
IndexModifier::IndexModifier(Directory* directory, Analyzer* analyzer, bool create) {
init(directory, analyzer, create);
}
IndexModifier::IndexModifier(const QString& dirName, Analyzer* analyzer, bool create) {
Directory* dir = FSDirectory::getDirectory(dirName, create);
init(dir, analyzer, create);
}
void IndexModifier::init(Directory* directory, Analyzer* analyzer, bool create) {
indexWriter = NULL;
indexReader = NULL;
this->analyzer = analyzer;
open = false;
useCompoundFile = true;
int32_t maxBufferedDocs = IndexWriter::DEFAULT_MAX_BUFFERED_DOCS;
this->maxFieldLength = IndexWriter::DEFAULT_MAX_FIELD_LENGTH;
int32_t mergeFactor = IndexWriter::DEFAULT_MERGE_FACTOR;
this->directory = _CL_POINTER(directory);
createIndexReader();
open = true;
}
IndexModifier::~IndexModifier(){
close();
}
void IndexModifier::assureOpen() const{
if (!open) {
_CLTHROWA(CL_ERR_IllegalState,"Index is closed");
}
}
void IndexModifier::createIndexWriter() {
if (indexWriter == NULL) {
if (indexReader != NULL) {
indexReader->close();
_CLDELETE(indexReader);
}
indexWriter = _CLNEW IndexWriter(directory, analyzer, false);
indexWriter->setUseCompoundFile(useCompoundFile);
//indexWriter->setMaxBufferedDocs(maxBufferedDocs);
indexWriter->setMaxFieldLength(maxFieldLength);
//indexWriter->setMergeFactor(mergeFactor);
}
}
void IndexModifier::createIndexReader() {
if (indexReader == NULL) {
if (indexWriter != NULL) {
indexWriter->close();
_CLDELETE(indexWriter);
}
indexReader = IndexReader::open(directory);
}
}
void IndexModifier::flush() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
if (indexWriter != NULL) {
indexWriter->close();
_CLDELETE(indexWriter);
createIndexWriter();
} else {
indexReader->close();
_CLDELETE(indexReader);
createIndexReader();
}
}
void IndexModifier::addDocument(Document* doc, Analyzer* docAnalyzer) {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexWriter();
if (docAnalyzer != NULL)
indexWriter->addDocument(doc, docAnalyzer);
else
indexWriter->addDocument(doc);
}
int32_t IndexModifier::deleteDocuments(Term* term) {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexReader();
return indexReader->deleteDocuments(term);
}
void IndexModifier::deleteDocument(int32_t docNum) {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexReader();
indexReader->deleteDocument(docNum);
}
int32_t IndexModifier::docCount() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
if (indexWriter != NULL)
return indexWriter->docCount();
else
return indexReader->numDocs();
}
void IndexModifier::optimize() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexWriter();
indexWriter->optimize();
}
void IndexModifier::setUseCompoundFile(bool useCompoundFile) {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
if (indexWriter != NULL)
indexWriter->setUseCompoundFile(useCompoundFile);
this->useCompoundFile = useCompoundFile;
}
bool IndexModifier::getUseCompoundFile() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexWriter();
return indexWriter->getUseCompoundFile();
}
void IndexModifier::setMaxFieldLength(int32_t maxFieldLength) {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
if (indexWriter != NULL)
indexWriter->setMaxFieldLength(maxFieldLength);
this->maxFieldLength = maxFieldLength;
}
int32_t IndexModifier::getMaxFieldLength() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexWriter();
return indexWriter->getMaxFieldLength();
}
void IndexModifier::setMaxBufferedDocs(int32_t maxBufferedDocs) {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
if (indexWriter != NULL)
indexWriter->setMaxBufferedDocs(maxBufferedDocs);
this->maxBufferedDocs = maxBufferedDocs;
}
int32_t IndexModifier::getMaxBufferedDocs() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexWriter();
return indexWriter->getMaxBufferedDocs();
}
void IndexModifier::setMergeFactor(int32_t mergeFactor) {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
if (indexWriter != NULL)
indexWriter->setMergeFactor(mergeFactor);
this->mergeFactor = mergeFactor;
}
int32_t IndexModifier::getMergeFactor() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexWriter();
return indexWriter->getMergeFactor();
}
void IndexModifier::close() {
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
if (indexWriter != NULL) {
indexWriter->close();
_CLDELETE(indexWriter);
} else {
indexReader->close();
_CLDELETE(indexReader);
}
_CLDECDELETE(directory)
open = false;
}
QString IndexModifier::toString() const
{
QString ret(QLatin1String("Index@"));
return ret.append(directory->toString());
}
int64_t IndexModifier::getCurrentVersion() const{
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
return IndexReader::getCurrentVersion(directory);
}
TermDocs* IndexModifier::termDocs(Term* term){
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexReader();
return indexReader->termDocs(term);
}
TermEnum* IndexModifier::terms(Term* term){
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexReader();
if ( term != NULL )
return indexReader->terms(term);
else
return indexReader->terms();
}
CL_NS(document)::Document* IndexModifier::document(const int32_t n){
Document* ret = _CLNEW Document;
if (!document(n,ret) )
_CLDELETE(ret);
return ret;
}
bool IndexModifier::document(int32_t n, CL_NS(document)::Document* doc){
SCOPED_LOCK_MUTEX(directory->THIS_LOCK)
assureOpen();
createIndexReader();
return indexReader->document(n, doc);
}
CL_NS(store)::Directory* IndexModifier::getDirectory(){
return directory;
}
CL_NS_END
|
