Mercurial > hg > orthanc
annotate Core/SQLite/Statement.cpp @ 1221:2255e66da726
getting rid of the dependency against Boost in the SQLite C++ wrapper
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 10 Nov 2014 17:05:50 +0100 |
parents | 9b9026560a5f |
children | 410c27e04a23 |
rev | line source |
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0 | 1 /** |
59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * |
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4 * Copyright (C) 2012-2014 Sebastien Jodogne <s.jodogne@gmail.com>, |
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5 * Medical Physics Department, CHU of Liege, Belgium |
0 | 6 * |
17 | 7 * Copyright (c) 2012 The Chromium Authors. All rights reserved. |
8 * | |
9 * Redistribution and use in source and binary forms, with or without | |
10 * modification, are permitted provided that the following conditions are | |
11 * met: | |
0 | 12 * |
17 | 13 * * Redistributions of source code must retain the above copyright |
14 * notice, this list of conditions and the following disclaimer. | |
15 * * Redistributions in binary form must reproduce the above | |
16 * copyright notice, this list of conditions and the following disclaimer | |
17 * in the documentation and/or other materials provided with the | |
18 * distribution. | |
19 * * Neither the name of Google Inc., the name of the CHU of Liege, | |
20 * nor the names of its contributors may be used to endorse or promote | |
21 * products derived from this software without specific prior written | |
22 * permission. | |
23 * | |
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
25 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
26 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
27 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
28 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
29 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
31 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
32 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
33 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
34 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
0 | 35 **/ |
36 | |
37 | |
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38 #if ORTHANC_SQLITE_STANDALONE != 1 |
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39 #include "../PrecompiledHeaders.h" |
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40 #include <glog/logging.h> |
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41 #endif |
0 | 42 |
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43 #include "Statement.h" |
0 | 44 #include "Connection.h" |
45 | |
46 #include <sqlite3.h> | |
47 #include <string.h> | |
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48 #include <stdio.h> |
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49 #include <algorithm> |
0 | 50 |
59 | 51 namespace Orthanc |
0 | 52 { |
53 namespace SQLite | |
54 { | |
55 int Statement::CheckError(int err) const | |
56 { | |
57 bool succeeded = (err == SQLITE_OK || err == SQLITE_ROW || err == SQLITE_DONE); | |
58 if (!succeeded) | |
59 { | |
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60 char buffer[128]; |
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61 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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62 throw OrthancSQLiteException(buffer); |
0 | 63 } |
64 | |
65 return err; | |
66 } | |
67 | |
68 void Statement::CheckOk(int err) const | |
69 { | |
70 if (err == SQLITE_RANGE) | |
71 { | |
72 // Binding to a non-existent variable is evidence of a serious error. | |
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73 throw OrthancSQLiteException("Bind value out of range"); |
0 | 74 } |
75 else if (err != SQLITE_OK) | |
76 { | |
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77 char buffer[128]; |
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78 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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79 throw OrthancSQLiteException(buffer); |
0 | 80 } |
81 } | |
82 | |
83 | |
84 Statement::Statement(Connection& database, | |
85 const StatementId& id, | |
86 const std::string& sql) : | |
87 reference_(database.GetCachedStatement(id, sql.c_str())) | |
88 { | |
89 Reset(true); | |
90 } | |
91 | |
92 | |
93 Statement::Statement(Connection& database, | |
94 const StatementId& id, | |
95 const char* sql) : | |
96 reference_(database.GetCachedStatement(id, sql)) | |
97 { | |
98 Reset(true); | |
99 } | |
100 | |
101 | |
102 Statement::Statement(Connection& database, | |
103 const std::string& sql) : | |
104 reference_(database.GetWrappedObject(), sql.c_str()) | |
105 { | |
106 } | |
107 | |
108 | |
109 Statement::Statement(Connection& database, | |
110 const char* sql) : | |
111 reference_(database.GetWrappedObject(), sql) | |
112 { | |
113 } | |
114 | |
115 | |
116 bool Statement::Run() | |
117 { | |
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118 #if ORTHANC_SQLITE_STANDALONE != 1 |
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119 VLOG(1) << "SQLite::Statement::Run " << sqlite3_sql(GetStatement()); |
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120 #endif |
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121 |
0 | 122 return CheckError(sqlite3_step(GetStatement())) == SQLITE_DONE; |
123 } | |
124 | |
125 bool Statement::Step() | |
126 { | |
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127 #if ORTHANC_SQLITE_STANDALONE != 1 |
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128 VLOG(1) << "SQLite::Statement::Step " << sqlite3_sql(GetStatement()); |
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129 #endif |
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130 |
0 | 131 return CheckError(sqlite3_step(GetStatement())) == SQLITE_ROW; |
132 } | |
133 | |
134 void Statement::Reset(bool clear_bound_vars) | |
135 { | |
136 // We don't call CheckError() here because sqlite3_reset() returns | |
137 // the last error that Step() caused thereby generating a second | |
138 // spurious error callback. | |
139 if (clear_bound_vars) | |
140 sqlite3_clear_bindings(GetStatement()); | |
137
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141 //VLOG(1) << "SQLite::Statement::Reset"; |
0 | 142 sqlite3_reset(GetStatement()); |
143 } | |
144 | |
145 std::string Statement::GetOriginalSQLStatement() | |
146 { | |
147 return std::string(sqlite3_sql(GetStatement())); | |
148 } | |
149 | |
150 | |
151 void Statement::BindNull(int col) | |
152 { | |
153 CheckOk(sqlite3_bind_null(GetStatement(), col + 1)); | |
154 } | |
155 | |
156 void Statement::BindBool(int col, bool val) | |
157 { | |
158 BindInt(col, val ? 1 : 0); | |
159 } | |
160 | |
161 void Statement::BindInt(int col, int val) | |
162 { | |
163 CheckOk(sqlite3_bind_int(GetStatement(), col + 1, val)); | |
164 } | |
165 | |
166 void Statement::BindInt64(int col, int64_t val) | |
167 { | |
168 CheckOk(sqlite3_bind_int64(GetStatement(), col + 1, val)); | |
169 } | |
170 | |
171 void Statement::BindDouble(int col, double val) | |
172 { | |
173 CheckOk(sqlite3_bind_double(GetStatement(), col + 1, val)); | |
174 } | |
175 | |
176 void Statement::BindCString(int col, const char* val) | |
177 { | |
178 CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val, -1, SQLITE_TRANSIENT)); | |
179 } | |
180 | |
181 void Statement::BindString(int col, const std::string& val) | |
182 { | |
183 CheckOk(sqlite3_bind_text(GetStatement(), | |
184 col + 1, | |
185 val.data(), | |
186 val.size(), | |
187 SQLITE_TRANSIENT)); | |
188 } | |
189 | |
190 /*void Statement::BindString16(int col, const string16& value) | |
191 { | |
192 BindString(col, UTF16ToUTF8(value)); | |
193 }*/ | |
194 | |
195 void Statement::BindBlob(int col, const void* val, int val_len) | |
196 { | |
197 CheckOk(sqlite3_bind_blob(GetStatement(), col + 1, val, val_len, SQLITE_TRANSIENT)); | |
198 } | |
199 | |
200 | |
201 int Statement::ColumnCount() const | |
202 { | |
203 return sqlite3_column_count(GetStatement()); | |
204 } | |
205 | |
206 | |
207 ColumnType Statement::GetColumnType(int col) const | |
208 { | |
209 // Verify that our enum matches sqlite's values. | |
210 assert(COLUMN_TYPE_INTEGER == SQLITE_INTEGER); | |
211 assert(COLUMN_TYPE_FLOAT == SQLITE_FLOAT); | |
212 assert(COLUMN_TYPE_TEXT == SQLITE_TEXT); | |
213 assert(COLUMN_TYPE_BLOB == SQLITE_BLOB); | |
214 assert(COLUMN_TYPE_NULL == SQLITE_NULL); | |
215 | |
216 return static_cast<ColumnType>(sqlite3_column_type(GetStatement(), col)); | |
217 } | |
218 | |
219 ColumnType Statement::GetDeclaredColumnType(int col) const | |
220 { | |
221 std::string column_type(sqlite3_column_decltype(GetStatement(), col)); | |
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222 std::transform(column_type.begin(), column_type.end(), column_type.begin(), tolower); |
0 | 223 |
224 if (column_type == "integer") | |
225 return COLUMN_TYPE_INTEGER; | |
226 else if (column_type == "float") | |
227 return COLUMN_TYPE_FLOAT; | |
228 else if (column_type == "text") | |
229 return COLUMN_TYPE_TEXT; | |
230 else if (column_type == "blob") | |
231 return COLUMN_TYPE_BLOB; | |
232 | |
233 return COLUMN_TYPE_NULL; | |
234 } | |
235 | |
80 | 236 bool Statement::ColumnIsNull(int col) const |
237 { | |
238 return sqlite3_column_type(GetStatement(), col) == SQLITE_NULL; | |
239 } | |
240 | |
0 | 241 bool Statement::ColumnBool(int col) const |
242 { | |
243 return !!ColumnInt(col); | |
244 } | |
245 | |
246 int Statement::ColumnInt(int col) const | |
247 { | |
248 return sqlite3_column_int(GetStatement(), col); | |
249 } | |
250 | |
251 int64_t Statement::ColumnInt64(int col) const | |
252 { | |
253 return sqlite3_column_int64(GetStatement(), col); | |
254 } | |
255 | |
256 double Statement::ColumnDouble(int col) const | |
257 { | |
258 return sqlite3_column_double(GetStatement(), col); | |
259 } | |
260 | |
261 std::string Statement::ColumnString(int col) const | |
262 { | |
263 const char* str = reinterpret_cast<const char*>( | |
264 sqlite3_column_text(GetStatement(), col)); | |
265 int len = sqlite3_column_bytes(GetStatement(), col); | |
266 | |
267 std::string result; | |
268 if (str && len > 0) | |
269 result.assign(str, len); | |
270 return result; | |
271 } | |
272 | |
273 /*string16 Statement::ColumnString16(int col) const | |
274 { | |
275 std::string s = ColumnString(col); | |
276 return !s.empty() ? UTF8ToUTF16(s) : string16(); | |
277 }*/ | |
278 | |
279 int Statement::ColumnByteLength(int col) const | |
280 { | |
281 return sqlite3_column_bytes(GetStatement(), col); | |
282 } | |
283 | |
284 const void* Statement::ColumnBlob(int col) const | |
285 { | |
286 return sqlite3_column_blob(GetStatement(), col); | |
287 } | |
288 | |
289 bool Statement::ColumnBlobAsString(int col, std::string* blob) | |
290 { | |
291 const void* p = ColumnBlob(col); | |
292 size_t len = ColumnByteLength(col); | |
293 blob->resize(len); | |
294 if (blob->size() != len) { | |
295 return false; | |
296 } | |
297 blob->assign(reinterpret_cast<const char*>(p), len); | |
298 return true; | |
299 } | |
300 | |
301 /*bool Statement::ColumnBlobAsString16(int col, string16* val) const | |
302 { | |
303 const void* data = ColumnBlob(col); | |
304 size_t len = ColumnByteLength(col) / sizeof(char16); | |
305 val->resize(len); | |
306 if (val->size() != len) | |
307 return false; | |
308 val->assign(reinterpret_cast<const char16*>(data), len); | |
309 return true; | |
310 }*/ | |
311 | |
724 | 312 /*bool Statement::ColumnBlobAsVector(int col, std::vector<char>* val) const |
0 | 313 { |
314 val->clear(); | |
315 | |
316 const void* data = sqlite3_column_blob(GetStatement(), col); | |
317 int len = sqlite3_column_bytes(GetStatement(), col); | |
318 if (data && len > 0) { | |
319 val->resize(len); | |
320 memcpy(&(*val)[0], data, len); | |
321 } | |
322 return true; | |
724 | 323 }*/ |
0 | 324 |
724 | 325 /*bool Statement::ColumnBlobAsVector( |
0 | 326 int col, |
327 std::vector<unsigned char>* val) const | |
328 { | |
329 return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val)); | |
724 | 330 }*/ |
0 | 331 |
332 } | |
333 } |