Mercurial > hg > orthanc
annotate Core/SQLite/Statement.cpp @ 1520:4a503a8c7749
fix
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Aug 2015 13:26:42 +0200 |
| parents | f967bdf8534e |
| children | bd1889029cbb |
| 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 { | |
| 63 int Statement::CheckError(int err) const | |
| 64 { | |
| 65 bool succeeded = (err == SQLITE_OK || err == SQLITE_ROW || err == SQLITE_DONE); | |
| 66 if (!succeeded) | |
| 67 { | |
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68 char buffer[128]; |
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69 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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70 throw OrthancSQLiteException(buffer); |
| 0 | 71 } |
| 72 | |
| 73 return err; | |
| 74 } | |
| 75 | |
| 76 void Statement::CheckOk(int err) const | |
| 77 { | |
| 78 if (err == SQLITE_RANGE) | |
| 79 { | |
| 80 // Binding to a non-existent variable is evidence of a serious error. | |
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81 throw OrthancSQLiteException("Bind value out of range"); |
| 0 | 82 } |
| 83 else if (err != SQLITE_OK) | |
| 84 { | |
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85 char buffer[128]; |
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86 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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87 throw OrthancSQLiteException(buffer); |
| 0 | 88 } |
| 89 } | |
| 90 | |
| 91 | |
| 92 Statement::Statement(Connection& database, | |
| 93 const StatementId& id, | |
| 94 const std::string& sql) : | |
| 95 reference_(database.GetCachedStatement(id, sql.c_str())) | |
| 96 { | |
| 97 Reset(true); | |
| 98 } | |
| 99 | |
| 100 | |
| 101 Statement::Statement(Connection& database, | |
| 102 const StatementId& id, | |
| 103 const char* sql) : | |
| 104 reference_(database.GetCachedStatement(id, sql)) | |
| 105 { | |
| 106 Reset(true); | |
| 107 } | |
| 108 | |
| 109 | |
| 110 Statement::Statement(Connection& database, | |
| 111 const std::string& sql) : | |
| 112 reference_(database.GetWrappedObject(), sql.c_str()) | |
| 113 { | |
| 114 } | |
| 115 | |
| 116 | |
| 117 Statement::Statement(Connection& database, | |
| 118 const char* sql) : | |
| 119 reference_(database.GetWrappedObject(), sql) | |
| 120 { | |
| 121 } | |
| 122 | |
| 123 | |
| 124 bool Statement::Run() | |
| 125 { | |
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126 #if ORTHANC_SQLITE_STANDALONE != 1 |
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127 VLOG(1) << "SQLite::Statement::Run " << sqlite3_sql(GetStatement()); |
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128 #endif |
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129 |
| 0 | 130 return CheckError(sqlite3_step(GetStatement())) == SQLITE_DONE; |
| 131 } | |
| 132 | |
| 133 bool Statement::Step() | |
| 134 { | |
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135 #if ORTHANC_SQLITE_STANDALONE != 1 |
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136 VLOG(1) << "SQLite::Statement::Step " << sqlite3_sql(GetStatement()); |
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137 #endif |
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138 |
| 0 | 139 return CheckError(sqlite3_step(GetStatement())) == SQLITE_ROW; |
| 140 } | |
| 141 | |
| 142 void Statement::Reset(bool clear_bound_vars) | |
| 143 { | |
| 144 // We don't call CheckError() here because sqlite3_reset() returns | |
| 145 // the last error that Step() caused thereby generating a second | |
| 146 // spurious error callback. | |
| 147 if (clear_bound_vars) | |
| 148 sqlite3_clear_bindings(GetStatement()); | |
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149 //VLOG(1) << "SQLite::Statement::Reset"; |
| 0 | 150 sqlite3_reset(GetStatement()); |
| 151 } | |
| 152 | |
| 153 std::string Statement::GetOriginalSQLStatement() | |
| 154 { | |
| 155 return std::string(sqlite3_sql(GetStatement())); | |
| 156 } | |
| 157 | |
| 158 | |
| 159 void Statement::BindNull(int col) | |
| 160 { | |
| 161 CheckOk(sqlite3_bind_null(GetStatement(), col + 1)); | |
| 162 } | |
| 163 | |
| 164 void Statement::BindBool(int col, bool val) | |
| 165 { | |
| 166 BindInt(col, val ? 1 : 0); | |
| 167 } | |
| 168 | |
| 169 void Statement::BindInt(int col, int val) | |
| 170 { | |
| 171 CheckOk(sqlite3_bind_int(GetStatement(), col + 1, val)); | |
| 172 } | |
| 173 | |
| 174 void Statement::BindInt64(int col, int64_t val) | |
| 175 { | |
| 176 CheckOk(sqlite3_bind_int64(GetStatement(), col + 1, val)); | |
| 177 } | |
| 178 | |
| 179 void Statement::BindDouble(int col, double val) | |
| 180 { | |
| 181 CheckOk(sqlite3_bind_double(GetStatement(), col + 1, val)); | |
| 182 } | |
| 183 | |
| 184 void Statement::BindCString(int col, const char* val) | |
| 185 { | |
| 186 CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val, -1, SQLITE_TRANSIENT)); | |
| 187 } | |
| 188 | |
| 189 void Statement::BindString(int col, const std::string& val) | |
| 190 { | |
| 191 CheckOk(sqlite3_bind_text(GetStatement(), | |
| 192 col + 1, | |
| 193 val.data(), | |
| 194 val.size(), | |
| 195 SQLITE_TRANSIENT)); | |
| 196 } | |
| 197 | |
| 198 /*void Statement::BindString16(int col, const string16& value) | |
| 199 { | |
| 200 BindString(col, UTF16ToUTF8(value)); | |
| 201 }*/ | |
| 202 | |
| 203 void Statement::BindBlob(int col, const void* val, int val_len) | |
| 204 { | |
| 205 CheckOk(sqlite3_bind_blob(GetStatement(), col + 1, val, val_len, SQLITE_TRANSIENT)); | |
| 206 } | |
| 207 | |
| 208 | |
| 209 int Statement::ColumnCount() const | |
| 210 { | |
| 211 return sqlite3_column_count(GetStatement()); | |
| 212 } | |
| 213 | |
| 214 | |
| 215 ColumnType Statement::GetColumnType(int col) const | |
| 216 { | |
| 217 // Verify that our enum matches sqlite's values. | |
| 218 assert(COLUMN_TYPE_INTEGER == SQLITE_INTEGER); | |
| 219 assert(COLUMN_TYPE_FLOAT == SQLITE_FLOAT); | |
| 220 assert(COLUMN_TYPE_TEXT == SQLITE_TEXT); | |
| 221 assert(COLUMN_TYPE_BLOB == SQLITE_BLOB); | |
| 222 assert(COLUMN_TYPE_NULL == SQLITE_NULL); | |
| 223 | |
| 224 return static_cast<ColumnType>(sqlite3_column_type(GetStatement(), col)); | |
| 225 } | |
| 226 | |
| 227 ColumnType Statement::GetDeclaredColumnType(int col) const | |
| 228 { | |
| 229 std::string column_type(sqlite3_column_decltype(GetStatement(), col)); | |
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230 std::transform(column_type.begin(), column_type.end(), column_type.begin(), tolower); |
| 0 | 231 |
| 232 if (column_type == "integer") | |
| 233 return COLUMN_TYPE_INTEGER; | |
| 234 else if (column_type == "float") | |
| 235 return COLUMN_TYPE_FLOAT; | |
| 236 else if (column_type == "text") | |
| 237 return COLUMN_TYPE_TEXT; | |
| 238 else if (column_type == "blob") | |
| 239 return COLUMN_TYPE_BLOB; | |
| 240 | |
| 241 return COLUMN_TYPE_NULL; | |
| 242 } | |
| 243 | |
| 80 | 244 bool Statement::ColumnIsNull(int col) const |
| 245 { | |
| 246 return sqlite3_column_type(GetStatement(), col) == SQLITE_NULL; | |
| 247 } | |
| 248 | |
| 0 | 249 bool Statement::ColumnBool(int col) const |
| 250 { | |
| 251 return !!ColumnInt(col); | |
| 252 } | |
| 253 | |
| 254 int Statement::ColumnInt(int col) const | |
| 255 { | |
| 256 return sqlite3_column_int(GetStatement(), col); | |
| 257 } | |
| 258 | |
| 259 int64_t Statement::ColumnInt64(int col) const | |
| 260 { | |
| 261 return sqlite3_column_int64(GetStatement(), col); | |
| 262 } | |
| 263 | |
| 264 double Statement::ColumnDouble(int col) const | |
| 265 { | |
| 266 return sqlite3_column_double(GetStatement(), col); | |
| 267 } | |
| 268 | |
| 269 std::string Statement::ColumnString(int col) const | |
| 270 { | |
| 271 const char* str = reinterpret_cast<const char*>( | |
| 272 sqlite3_column_text(GetStatement(), col)); | |
| 273 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 274 | |
| 275 std::string result; | |
| 276 if (str && len > 0) | |
| 277 result.assign(str, len); | |
| 278 return result; | |
| 279 } | |
| 280 | |
| 281 /*string16 Statement::ColumnString16(int col) const | |
| 282 { | |
| 283 std::string s = ColumnString(col); | |
| 284 return !s.empty() ? UTF8ToUTF16(s) : string16(); | |
| 285 }*/ | |
| 286 | |
| 287 int Statement::ColumnByteLength(int col) const | |
| 288 { | |
| 289 return sqlite3_column_bytes(GetStatement(), col); | |
| 290 } | |
| 291 | |
| 292 const void* Statement::ColumnBlob(int col) const | |
| 293 { | |
| 294 return sqlite3_column_blob(GetStatement(), col); | |
| 295 } | |
| 296 | |
| 297 bool Statement::ColumnBlobAsString(int col, std::string* blob) | |
| 298 { | |
| 299 const void* p = ColumnBlob(col); | |
| 300 size_t len = ColumnByteLength(col); | |
| 301 blob->resize(len); | |
| 302 if (blob->size() != len) { | |
| 303 return false; | |
| 304 } | |
| 305 blob->assign(reinterpret_cast<const char*>(p), len); | |
| 306 return true; | |
| 307 } | |
| 308 | |
| 309 /*bool Statement::ColumnBlobAsString16(int col, string16* val) const | |
| 310 { | |
| 311 const void* data = ColumnBlob(col); | |
| 312 size_t len = ColumnByteLength(col) / sizeof(char16); | |
| 313 val->resize(len); | |
| 314 if (val->size() != len) | |
| 315 return false; | |
| 316 val->assign(reinterpret_cast<const char16*>(data), len); | |
| 317 return true; | |
| 318 }*/ | |
| 319 | |
| 724 | 320 /*bool Statement::ColumnBlobAsVector(int col, std::vector<char>* val) const |
| 0 | 321 { |
| 322 val->clear(); | |
| 323 | |
| 324 const void* data = sqlite3_column_blob(GetStatement(), col); | |
| 325 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 326 if (data && len > 0) { | |
| 327 val->resize(len); | |
| 328 memcpy(&(*val)[0], data, len); | |
| 329 } | |
| 330 return true; | |
| 724 | 331 }*/ |
| 0 | 332 |
| 724 | 333 /*bool Statement::ColumnBlobAsVector( |
| 0 | 334 int col, |
| 335 std::vector<unsigned char>* val) const | |
| 336 { | |
| 337 return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val)); | |
| 724 | 338 }*/ |
| 0 | 339 |
| 340 } | |
| 341 } |