Mercurial > hg > orthanc
annotate Core/SQLite/Statement.cpp @ 1777:0f5c416969dc
more memory-efficient ArchiveIndex
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Fri, 13 Nov 2015 11:51:19 +0100 |
| parents | bd1889029cbb |
| children | b1291df2f780 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
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3 * |
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4 * Copyright (C) 2012-2015 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 #endif |
| 0 | 41 |
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42 #include "Statement.h" |
| 0 | 43 #include "Connection.h" |
| 44 | |
| 45 #include <string.h> | |
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46 #include <stdio.h> |
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47 #include <algorithm> |
| 0 | 48 |
| 1226 | 49 #if ORTHANC_SQLITE_STANDALONE != 1 |
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50 #include "../Logging.h" |
| 1226 | 51 #endif |
| 52 | |
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53 #include "sqlite3.h" |
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54 |
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55 #if defined(_MSC_VER) |
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56 #define snprintf _snprintf |
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57 #endif |
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58 |
| 59 | 59 namespace Orthanc |
| 0 | 60 { |
| 61 namespace SQLite | |
| 62 { | |
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63 int Statement::CheckError(int err, ErrorCode code) const |
| 0 | 64 { |
| 65 bool succeeded = (err == SQLITE_OK || err == SQLITE_ROW || err == SQLITE_DONE); | |
| 66 if (!succeeded) | |
| 67 { | |
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68 #if ORTHANC_SQLITE_STANDALONE != 1 |
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69 char buffer[128]; |
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70 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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71 LOG(ERROR) << buffer; |
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72 #endif |
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73 |
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74 throw OrthancSQLiteException(code); |
| 0 | 75 } |
| 76 | |
| 77 return err; | |
| 78 } | |
| 79 | |
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80 void Statement::CheckOk(int err, ErrorCode code) const |
| 0 | 81 { |
| 82 if (err == SQLITE_RANGE) | |
| 83 { | |
| 84 // Binding to a non-existent variable is evidence of a serious error. | |
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85 throw OrthancSQLiteException(ErrorCode_SQLiteBindOutOfRange); |
| 0 | 86 } |
| 87 else if (err != SQLITE_OK) | |
| 88 { | |
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89 #if ORTHANC_SQLITE_STANDALONE != 1 |
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90 char buffer[128]; |
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91 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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92 LOG(ERROR) << buffer; |
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93 #endif |
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94 |
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95 throw OrthancSQLiteException(code); |
| 0 | 96 } |
| 97 } | |
| 98 | |
| 99 | |
| 100 Statement::Statement(Connection& database, | |
| 101 const StatementId& id, | |
| 102 const std::string& sql) : | |
| 103 reference_(database.GetCachedStatement(id, sql.c_str())) | |
| 104 { | |
| 105 Reset(true); | |
| 106 } | |
| 107 | |
| 108 | |
| 109 Statement::Statement(Connection& database, | |
| 110 const StatementId& id, | |
| 111 const char* sql) : | |
| 112 reference_(database.GetCachedStatement(id, sql)) | |
| 113 { | |
| 114 Reset(true); | |
| 115 } | |
| 116 | |
| 117 | |
| 118 Statement::Statement(Connection& database, | |
| 119 const std::string& sql) : | |
| 120 reference_(database.GetWrappedObject(), sql.c_str()) | |
| 121 { | |
| 122 } | |
| 123 | |
| 124 | |
| 125 Statement::Statement(Connection& database, | |
| 126 const char* sql) : | |
| 127 reference_(database.GetWrappedObject(), sql) | |
| 128 { | |
| 129 } | |
| 130 | |
| 131 | |
| 132 bool Statement::Run() | |
| 133 { | |
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134 #if ORTHANC_SQLITE_STANDALONE != 1 |
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135 VLOG(1) << "SQLite::Statement::Run " << sqlite3_sql(GetStatement()); |
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136 #endif |
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137 |
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138 return CheckError(sqlite3_step(GetStatement()), ErrorCode_SQLiteCannotRun) == SQLITE_DONE; |
| 0 | 139 } |
| 140 | |
| 141 bool Statement::Step() | |
| 142 { | |
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143 #if ORTHANC_SQLITE_STANDALONE != 1 |
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144 VLOG(1) << "SQLite::Statement::Step " << sqlite3_sql(GetStatement()); |
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145 #endif |
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146 |
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147 return CheckError(sqlite3_step(GetStatement()), ErrorCode_SQLiteCannotStep) == SQLITE_ROW; |
| 0 | 148 } |
| 149 | |
| 150 void Statement::Reset(bool clear_bound_vars) | |
| 151 { | |
| 152 // We don't call CheckError() here because sqlite3_reset() returns | |
| 153 // the last error that Step() caused thereby generating a second | |
| 154 // spurious error callback. | |
| 155 if (clear_bound_vars) | |
| 156 sqlite3_clear_bindings(GetStatement()); | |
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157 //VLOG(1) << "SQLite::Statement::Reset"; |
| 0 | 158 sqlite3_reset(GetStatement()); |
| 159 } | |
| 160 | |
| 161 std::string Statement::GetOriginalSQLStatement() | |
| 162 { | |
| 163 return std::string(sqlite3_sql(GetStatement())); | |
| 164 } | |
| 165 | |
| 166 | |
| 167 void Statement::BindNull(int col) | |
| 168 { | |
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169 CheckOk(sqlite3_bind_null(GetStatement(), col + 1), |
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170 ErrorCode_BadParameterType); |
| 0 | 171 } |
| 172 | |
| 173 void Statement::BindBool(int col, bool val) | |
| 174 { | |
| 175 BindInt(col, val ? 1 : 0); | |
| 176 } | |
| 177 | |
| 178 void Statement::BindInt(int col, int val) | |
| 179 { | |
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180 CheckOk(sqlite3_bind_int(GetStatement(), col + 1, val), |
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181 ErrorCode_BadParameterType); |
| 0 | 182 } |
| 183 | |
| 184 void Statement::BindInt64(int col, int64_t val) | |
| 185 { | |
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186 CheckOk(sqlite3_bind_int64(GetStatement(), col + 1, val), |
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187 ErrorCode_BadParameterType); |
| 0 | 188 } |
| 189 | |
| 190 void Statement::BindDouble(int col, double val) | |
| 191 { | |
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192 CheckOk(sqlite3_bind_double(GetStatement(), col + 1, val), |
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193 ErrorCode_BadParameterType); |
| 0 | 194 } |
| 195 | |
| 196 void Statement::BindCString(int col, const char* val) | |
| 197 { | |
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198 CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val, -1, SQLITE_TRANSIENT), |
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199 ErrorCode_BadParameterType); |
| 0 | 200 } |
| 201 | |
| 202 void Statement::BindString(int col, const std::string& val) | |
| 203 { | |
| 204 CheckOk(sqlite3_bind_text(GetStatement(), | |
| 205 col + 1, | |
| 206 val.data(), | |
| 207 val.size(), | |
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208 SQLITE_TRANSIENT), |
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209 ErrorCode_BadParameterType); |
| 0 | 210 } |
| 211 | |
| 212 /*void Statement::BindString16(int col, const string16& value) | |
| 213 { | |
| 214 BindString(col, UTF16ToUTF8(value)); | |
| 215 }*/ | |
| 216 | |
| 217 void Statement::BindBlob(int col, const void* val, int val_len) | |
| 218 { | |
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219 CheckOk(sqlite3_bind_blob(GetStatement(), col + 1, val, val_len, SQLITE_TRANSIENT), |
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220 ErrorCode_BadParameterType); |
| 0 | 221 } |
| 222 | |
| 223 | |
| 224 int Statement::ColumnCount() const | |
| 225 { | |
| 226 return sqlite3_column_count(GetStatement()); | |
| 227 } | |
| 228 | |
| 229 | |
| 230 ColumnType Statement::GetColumnType(int col) const | |
| 231 { | |
| 232 // Verify that our enum matches sqlite's values. | |
| 233 assert(COLUMN_TYPE_INTEGER == SQLITE_INTEGER); | |
| 234 assert(COLUMN_TYPE_FLOAT == SQLITE_FLOAT); | |
| 235 assert(COLUMN_TYPE_TEXT == SQLITE_TEXT); | |
| 236 assert(COLUMN_TYPE_BLOB == SQLITE_BLOB); | |
| 237 assert(COLUMN_TYPE_NULL == SQLITE_NULL); | |
| 238 | |
| 239 return static_cast<ColumnType>(sqlite3_column_type(GetStatement(), col)); | |
| 240 } | |
| 241 | |
| 242 ColumnType Statement::GetDeclaredColumnType(int col) const | |
| 243 { | |
| 244 std::string column_type(sqlite3_column_decltype(GetStatement(), col)); | |
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245 std::transform(column_type.begin(), column_type.end(), column_type.begin(), tolower); |
| 0 | 246 |
| 247 if (column_type == "integer") | |
| 248 return COLUMN_TYPE_INTEGER; | |
| 249 else if (column_type == "float") | |
| 250 return COLUMN_TYPE_FLOAT; | |
| 251 else if (column_type == "text") | |
| 252 return COLUMN_TYPE_TEXT; | |
| 253 else if (column_type == "blob") | |
| 254 return COLUMN_TYPE_BLOB; | |
| 255 | |
| 256 return COLUMN_TYPE_NULL; | |
| 257 } | |
| 258 | |
| 80 | 259 bool Statement::ColumnIsNull(int col) const |
| 260 { | |
| 261 return sqlite3_column_type(GetStatement(), col) == SQLITE_NULL; | |
| 262 } | |
| 263 | |
| 0 | 264 bool Statement::ColumnBool(int col) const |
| 265 { | |
| 266 return !!ColumnInt(col); | |
| 267 } | |
| 268 | |
| 269 int Statement::ColumnInt(int col) const | |
| 270 { | |
| 271 return sqlite3_column_int(GetStatement(), col); | |
| 272 } | |
| 273 | |
| 274 int64_t Statement::ColumnInt64(int col) const | |
| 275 { | |
| 276 return sqlite3_column_int64(GetStatement(), col); | |
| 277 } | |
| 278 | |
| 279 double Statement::ColumnDouble(int col) const | |
| 280 { | |
| 281 return sqlite3_column_double(GetStatement(), col); | |
| 282 } | |
| 283 | |
| 284 std::string Statement::ColumnString(int col) const | |
| 285 { | |
| 286 const char* str = reinterpret_cast<const char*>( | |
| 287 sqlite3_column_text(GetStatement(), col)); | |
| 288 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 289 | |
| 290 std::string result; | |
| 291 if (str && len > 0) | |
| 292 result.assign(str, len); | |
| 293 return result; | |
| 294 } | |
| 295 | |
| 296 /*string16 Statement::ColumnString16(int col) const | |
| 297 { | |
| 298 std::string s = ColumnString(col); | |
| 299 return !s.empty() ? UTF8ToUTF16(s) : string16(); | |
| 300 }*/ | |
| 301 | |
| 302 int Statement::ColumnByteLength(int col) const | |
| 303 { | |
| 304 return sqlite3_column_bytes(GetStatement(), col); | |
| 305 } | |
| 306 | |
| 307 const void* Statement::ColumnBlob(int col) const | |
| 308 { | |
| 309 return sqlite3_column_blob(GetStatement(), col); | |
| 310 } | |
| 311 | |
| 312 bool Statement::ColumnBlobAsString(int col, std::string* blob) | |
| 313 { | |
| 314 const void* p = ColumnBlob(col); | |
| 315 size_t len = ColumnByteLength(col); | |
| 316 blob->resize(len); | |
| 317 if (blob->size() != len) { | |
| 318 return false; | |
| 319 } | |
| 320 blob->assign(reinterpret_cast<const char*>(p), len); | |
| 321 return true; | |
| 322 } | |
| 323 | |
| 324 /*bool Statement::ColumnBlobAsString16(int col, string16* val) const | |
| 325 { | |
| 326 const void* data = ColumnBlob(col); | |
| 327 size_t len = ColumnByteLength(col) / sizeof(char16); | |
| 328 val->resize(len); | |
| 329 if (val->size() != len) | |
| 330 return false; | |
| 331 val->assign(reinterpret_cast<const char16*>(data), len); | |
| 332 return true; | |
| 333 }*/ | |
| 334 | |
| 724 | 335 /*bool Statement::ColumnBlobAsVector(int col, std::vector<char>* val) const |
| 0 | 336 { |
| 337 val->clear(); | |
| 338 | |
| 339 const void* data = sqlite3_column_blob(GetStatement(), col); | |
| 340 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 341 if (data && len > 0) { | |
| 342 val->resize(len); | |
| 343 memcpy(&(*val)[0], data, len); | |
| 344 } | |
| 345 return true; | |
| 724 | 346 }*/ |
| 0 | 347 |
| 724 | 348 /*bool Statement::ColumnBlobAsVector( |
| 0 | 349 int col, |
| 350 std::vector<unsigned char>* val) const | |
| 351 { | |
| 352 return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val)); | |
| 724 | 353 }*/ |
| 0 | 354 |
| 355 } | |
| 356 } |