Mercurial > hg > orthanc
annotate Core/SQLite/Statement.cpp @ 1222:410c27e04a23
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Nov 2014 09:57:42 +0100 |
| parents | 2255e66da726 |
| children | 3f62e1269cca |
| 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) 2012-2014 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 |
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51 #if defined(_MSC_VER) |
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52 #define snprintf _snprintf |
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53 #endif |
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54 |
| 59 | 55 namespace Orthanc |
| 0 | 56 { |
| 57 namespace SQLite | |
| 58 { | |
| 59 int Statement::CheckError(int err) const | |
| 60 { | |
| 61 bool succeeded = (err == SQLITE_OK || err == SQLITE_ROW || err == SQLITE_DONE); | |
| 62 if (!succeeded) | |
| 63 { | |
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64 char buffer[128]; |
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65 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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66 throw OrthancSQLiteException(buffer); |
| 0 | 67 } |
| 68 | |
| 69 return err; | |
| 70 } | |
| 71 | |
| 72 void Statement::CheckOk(int err) const | |
| 73 { | |
| 74 if (err == SQLITE_RANGE) | |
| 75 { | |
| 76 // Binding to a non-existent variable is evidence of a serious error. | |
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77 throw OrthancSQLiteException("Bind value out of range"); |
| 0 | 78 } |
| 79 else if (err != SQLITE_OK) | |
| 80 { | |
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81 char buffer[128]; |
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82 snprintf(buffer, sizeof(buffer) - 1, "SQLite error code %d", err); |
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83 throw OrthancSQLiteException(buffer); |
| 0 | 84 } |
| 85 } | |
| 86 | |
| 87 | |
| 88 Statement::Statement(Connection& database, | |
| 89 const StatementId& id, | |
| 90 const std::string& sql) : | |
| 91 reference_(database.GetCachedStatement(id, sql.c_str())) | |
| 92 { | |
| 93 Reset(true); | |
| 94 } | |
| 95 | |
| 96 | |
| 97 Statement::Statement(Connection& database, | |
| 98 const StatementId& id, | |
| 99 const char* sql) : | |
| 100 reference_(database.GetCachedStatement(id, sql)) | |
| 101 { | |
| 102 Reset(true); | |
| 103 } | |
| 104 | |
| 105 | |
| 106 Statement::Statement(Connection& database, | |
| 107 const std::string& sql) : | |
| 108 reference_(database.GetWrappedObject(), sql.c_str()) | |
| 109 { | |
| 110 } | |
| 111 | |
| 112 | |
| 113 Statement::Statement(Connection& database, | |
| 114 const char* sql) : | |
| 115 reference_(database.GetWrappedObject(), sql) | |
| 116 { | |
| 117 } | |
| 118 | |
| 119 | |
| 120 bool Statement::Run() | |
| 121 { | |
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122 #if ORTHANC_SQLITE_STANDALONE != 1 |
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123 VLOG(1) << "SQLite::Statement::Run " << sqlite3_sql(GetStatement()); |
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124 #endif |
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125 |
| 0 | 126 return CheckError(sqlite3_step(GetStatement())) == SQLITE_DONE; |
| 127 } | |
| 128 | |
| 129 bool Statement::Step() | |
| 130 { | |
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131 #if ORTHANC_SQLITE_STANDALONE != 1 |
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132 VLOG(1) << "SQLite::Statement::Step " << sqlite3_sql(GetStatement()); |
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133 #endif |
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134 |
| 0 | 135 return CheckError(sqlite3_step(GetStatement())) == SQLITE_ROW; |
| 136 } | |
| 137 | |
| 138 void Statement::Reset(bool clear_bound_vars) | |
| 139 { | |
| 140 // We don't call CheckError() here because sqlite3_reset() returns | |
| 141 // the last error that Step() caused thereby generating a second | |
| 142 // spurious error callback. | |
| 143 if (clear_bound_vars) | |
| 144 sqlite3_clear_bindings(GetStatement()); | |
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145 //VLOG(1) << "SQLite::Statement::Reset"; |
| 0 | 146 sqlite3_reset(GetStatement()); |
| 147 } | |
| 148 | |
| 149 std::string Statement::GetOriginalSQLStatement() | |
| 150 { | |
| 151 return std::string(sqlite3_sql(GetStatement())); | |
| 152 } | |
| 153 | |
| 154 | |
| 155 void Statement::BindNull(int col) | |
| 156 { | |
| 157 CheckOk(sqlite3_bind_null(GetStatement(), col + 1)); | |
| 158 } | |
| 159 | |
| 160 void Statement::BindBool(int col, bool val) | |
| 161 { | |
| 162 BindInt(col, val ? 1 : 0); | |
| 163 } | |
| 164 | |
| 165 void Statement::BindInt(int col, int val) | |
| 166 { | |
| 167 CheckOk(sqlite3_bind_int(GetStatement(), col + 1, val)); | |
| 168 } | |
| 169 | |
| 170 void Statement::BindInt64(int col, int64_t val) | |
| 171 { | |
| 172 CheckOk(sqlite3_bind_int64(GetStatement(), col + 1, val)); | |
| 173 } | |
| 174 | |
| 175 void Statement::BindDouble(int col, double val) | |
| 176 { | |
| 177 CheckOk(sqlite3_bind_double(GetStatement(), col + 1, val)); | |
| 178 } | |
| 179 | |
| 180 void Statement::BindCString(int col, const char* val) | |
| 181 { | |
| 182 CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val, -1, SQLITE_TRANSIENT)); | |
| 183 } | |
| 184 | |
| 185 void Statement::BindString(int col, const std::string& val) | |
| 186 { | |
| 187 CheckOk(sqlite3_bind_text(GetStatement(), | |
| 188 col + 1, | |
| 189 val.data(), | |
| 190 val.size(), | |
| 191 SQLITE_TRANSIENT)); | |
| 192 } | |
| 193 | |
| 194 /*void Statement::BindString16(int col, const string16& value) | |
| 195 { | |
| 196 BindString(col, UTF16ToUTF8(value)); | |
| 197 }*/ | |
| 198 | |
| 199 void Statement::BindBlob(int col, const void* val, int val_len) | |
| 200 { | |
| 201 CheckOk(sqlite3_bind_blob(GetStatement(), col + 1, val, val_len, SQLITE_TRANSIENT)); | |
| 202 } | |
| 203 | |
| 204 | |
| 205 int Statement::ColumnCount() const | |
| 206 { | |
| 207 return sqlite3_column_count(GetStatement()); | |
| 208 } | |
| 209 | |
| 210 | |
| 211 ColumnType Statement::GetColumnType(int col) const | |
| 212 { | |
| 213 // Verify that our enum matches sqlite's values. | |
| 214 assert(COLUMN_TYPE_INTEGER == SQLITE_INTEGER); | |
| 215 assert(COLUMN_TYPE_FLOAT == SQLITE_FLOAT); | |
| 216 assert(COLUMN_TYPE_TEXT == SQLITE_TEXT); | |
| 217 assert(COLUMN_TYPE_BLOB == SQLITE_BLOB); | |
| 218 assert(COLUMN_TYPE_NULL == SQLITE_NULL); | |
| 219 | |
| 220 return static_cast<ColumnType>(sqlite3_column_type(GetStatement(), col)); | |
| 221 } | |
| 222 | |
| 223 ColumnType Statement::GetDeclaredColumnType(int col) const | |
| 224 { | |
| 225 std::string column_type(sqlite3_column_decltype(GetStatement(), col)); | |
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226 std::transform(column_type.begin(), column_type.end(), column_type.begin(), tolower); |
| 0 | 227 |
| 228 if (column_type == "integer") | |
| 229 return COLUMN_TYPE_INTEGER; | |
| 230 else if (column_type == "float") | |
| 231 return COLUMN_TYPE_FLOAT; | |
| 232 else if (column_type == "text") | |
| 233 return COLUMN_TYPE_TEXT; | |
| 234 else if (column_type == "blob") | |
| 235 return COLUMN_TYPE_BLOB; | |
| 236 | |
| 237 return COLUMN_TYPE_NULL; | |
| 238 } | |
| 239 | |
| 80 | 240 bool Statement::ColumnIsNull(int col) const |
| 241 { | |
| 242 return sqlite3_column_type(GetStatement(), col) == SQLITE_NULL; | |
| 243 } | |
| 244 | |
| 0 | 245 bool Statement::ColumnBool(int col) const |
| 246 { | |
| 247 return !!ColumnInt(col); | |
| 248 } | |
| 249 | |
| 250 int Statement::ColumnInt(int col) const | |
| 251 { | |
| 252 return sqlite3_column_int(GetStatement(), col); | |
| 253 } | |
| 254 | |
| 255 int64_t Statement::ColumnInt64(int col) const | |
| 256 { | |
| 257 return sqlite3_column_int64(GetStatement(), col); | |
| 258 } | |
| 259 | |
| 260 double Statement::ColumnDouble(int col) const | |
| 261 { | |
| 262 return sqlite3_column_double(GetStatement(), col); | |
| 263 } | |
| 264 | |
| 265 std::string Statement::ColumnString(int col) const | |
| 266 { | |
| 267 const char* str = reinterpret_cast<const char*>( | |
| 268 sqlite3_column_text(GetStatement(), col)); | |
| 269 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 270 | |
| 271 std::string result; | |
| 272 if (str && len > 0) | |
| 273 result.assign(str, len); | |
| 274 return result; | |
| 275 } | |
| 276 | |
| 277 /*string16 Statement::ColumnString16(int col) const | |
| 278 { | |
| 279 std::string s = ColumnString(col); | |
| 280 return !s.empty() ? UTF8ToUTF16(s) : string16(); | |
| 281 }*/ | |
| 282 | |
| 283 int Statement::ColumnByteLength(int col) const | |
| 284 { | |
| 285 return sqlite3_column_bytes(GetStatement(), col); | |
| 286 } | |
| 287 | |
| 288 const void* Statement::ColumnBlob(int col) const | |
| 289 { | |
| 290 return sqlite3_column_blob(GetStatement(), col); | |
| 291 } | |
| 292 | |
| 293 bool Statement::ColumnBlobAsString(int col, std::string* blob) | |
| 294 { | |
| 295 const void* p = ColumnBlob(col); | |
| 296 size_t len = ColumnByteLength(col); | |
| 297 blob->resize(len); | |
| 298 if (blob->size() != len) { | |
| 299 return false; | |
| 300 } | |
| 301 blob->assign(reinterpret_cast<const char*>(p), len); | |
| 302 return true; | |
| 303 } | |
| 304 | |
| 305 /*bool Statement::ColumnBlobAsString16(int col, string16* val) const | |
| 306 { | |
| 307 const void* data = ColumnBlob(col); | |
| 308 size_t len = ColumnByteLength(col) / sizeof(char16); | |
| 309 val->resize(len); | |
| 310 if (val->size() != len) | |
| 311 return false; | |
| 312 val->assign(reinterpret_cast<const char16*>(data), len); | |
| 313 return true; | |
| 314 }*/ | |
| 315 | |
| 724 | 316 /*bool Statement::ColumnBlobAsVector(int col, std::vector<char>* val) const |
| 0 | 317 { |
| 318 val->clear(); | |
| 319 | |
| 320 const void* data = sqlite3_column_blob(GetStatement(), col); | |
| 321 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 322 if (data && len > 0) { | |
| 323 val->resize(len); | |
| 324 memcpy(&(*val)[0], data, len); | |
| 325 } | |
| 326 return true; | |
| 724 | 327 }*/ |
| 0 | 328 |
| 724 | 329 /*bool Statement::ColumnBlobAsVector( |
| 0 | 330 int col, |
| 331 std::vector<unsigned char>* val) const | |
| 332 { | |
| 333 return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val)); | |
| 724 | 334 }*/ |
| 0 | 335 |
| 336 } | |
| 337 } |