Mercurial > hg > orthanc
annotate Core/SQLite/Statement.cpp @ 1044:6d90e2bcab60
sample
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Thu, 17 Jul 2014 16:01:41 +0200 |
| parents | a811bdf8b8eb |
| children | 9b9026560a5f |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
| 0 | 4 * Belgium |
| 5 * | |
| 17 | 6 * Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions are | |
| 10 * met: | |
| 0 | 11 * |
| 17 | 12 * * Redistributions of source code must retain the above copyright |
| 13 * notice, this list of conditions and the following disclaimer. | |
| 14 * * Redistributions in binary form must reproduce the above | |
| 15 * copyright notice, this list of conditions and the following disclaimer | |
| 16 * in the documentation and/or other materials provided with the | |
| 17 * distribution. | |
| 18 * * Neither the name of Google Inc., the name of the CHU of Liege, | |
| 19 * nor the names of its contributors may be used to endorse or promote | |
| 20 * products derived from this software without specific prior written | |
| 21 * permission. | |
| 22 * | |
| 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 0 | 34 **/ |
| 35 | |
| 36 | |
|
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37 #include "../PrecompiledHeaders.h" |
| 0 | 38 #include "Statement.h" |
| 39 | |
| 40 #include "Connection.h" | |
| 41 #include "../Toolbox.h" | |
| 42 | |
| 43 #include <boost/lexical_cast.hpp> | |
| 44 #include <sqlite3.h> | |
| 45 #include <string.h> | |
|
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46 #include <glog/logging.h> |
| 0 | 47 |
| 59 | 48 namespace Orthanc |
| 0 | 49 { |
| 50 namespace SQLite | |
| 51 { | |
| 52 int Statement::CheckError(int err) const | |
| 53 { | |
| 54 bool succeeded = (err == SQLITE_OK || err == SQLITE_ROW || err == SQLITE_DONE); | |
| 55 if (!succeeded) | |
| 56 { | |
| 59 | 57 throw OrthancException("SQLite error code " + boost::lexical_cast<std::string>(err)); |
| 0 | 58 } |
| 59 | |
| 60 return err; | |
| 61 } | |
| 62 | |
| 63 void Statement::CheckOk(int err) const | |
| 64 { | |
| 65 if (err == SQLITE_RANGE) | |
| 66 { | |
| 67 // Binding to a non-existent variable is evidence of a serious error. | |
| 59 | 68 throw OrthancException("Bind value out of range"); |
| 0 | 69 } |
| 70 else if (err != SQLITE_OK) | |
| 71 { | |
| 59 | 72 throw OrthancException("SQLite error code " + boost::lexical_cast<std::string>(err)); |
| 0 | 73 } |
| 74 } | |
| 75 | |
| 76 | |
| 77 Statement::Statement(Connection& database, | |
| 78 const StatementId& id, | |
| 79 const std::string& sql) : | |
| 80 reference_(database.GetCachedStatement(id, sql.c_str())) | |
| 81 { | |
| 82 Reset(true); | |
| 83 } | |
| 84 | |
| 85 | |
| 86 Statement::Statement(Connection& database, | |
| 87 const StatementId& id, | |
| 88 const char* sql) : | |
| 89 reference_(database.GetCachedStatement(id, sql)) | |
| 90 { | |
| 91 Reset(true); | |
| 92 } | |
| 93 | |
| 94 | |
| 95 Statement::Statement(Connection& database, | |
| 96 const std::string& sql) : | |
| 97 reference_(database.GetWrappedObject(), sql.c_str()) | |
| 98 { | |
| 99 } | |
| 100 | |
| 101 | |
| 102 Statement::Statement(Connection& database, | |
| 103 const char* sql) : | |
| 104 reference_(database.GetWrappedObject(), sql) | |
| 105 { | |
| 106 } | |
| 107 | |
| 108 | |
| 109 bool Statement::Run() | |
| 110 { | |
|
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111 VLOG(1) << "SQLite::Statement::Run " << sqlite3_sql(GetStatement()); |
| 0 | 112 return CheckError(sqlite3_step(GetStatement())) == SQLITE_DONE; |
| 113 } | |
| 114 | |
| 115 bool Statement::Step() | |
| 116 { | |
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117 VLOG(1) << "SQLite::Statement::Step " << sqlite3_sql(GetStatement()); |
| 0 | 118 return CheckError(sqlite3_step(GetStatement())) == SQLITE_ROW; |
| 119 } | |
| 120 | |
| 121 void Statement::Reset(bool clear_bound_vars) | |
| 122 { | |
| 123 // We don't call CheckError() here because sqlite3_reset() returns | |
| 124 // the last error that Step() caused thereby generating a second | |
| 125 // spurious error callback. | |
| 126 if (clear_bound_vars) | |
| 127 sqlite3_clear_bindings(GetStatement()); | |
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fix of a bug in older versions of sqlite
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parents:
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diff
changeset
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128 //VLOG(1) << "SQLite::Statement::Reset"; |
| 0 | 129 sqlite3_reset(GetStatement()); |
| 130 } | |
| 131 | |
| 132 std::string Statement::GetOriginalSQLStatement() | |
| 133 { | |
| 134 return std::string(sqlite3_sql(GetStatement())); | |
| 135 } | |
| 136 | |
| 137 | |
| 138 void Statement::BindNull(int col) | |
| 139 { | |
| 140 CheckOk(sqlite3_bind_null(GetStatement(), col + 1)); | |
| 141 } | |
| 142 | |
| 143 void Statement::BindBool(int col, bool val) | |
| 144 { | |
| 145 BindInt(col, val ? 1 : 0); | |
| 146 } | |
| 147 | |
| 148 void Statement::BindInt(int col, int val) | |
| 149 { | |
| 150 CheckOk(sqlite3_bind_int(GetStatement(), col + 1, val)); | |
| 151 } | |
| 152 | |
| 153 void Statement::BindInt64(int col, int64_t val) | |
| 154 { | |
| 155 CheckOk(sqlite3_bind_int64(GetStatement(), col + 1, val)); | |
| 156 } | |
| 157 | |
| 158 void Statement::BindDouble(int col, double val) | |
| 159 { | |
| 160 CheckOk(sqlite3_bind_double(GetStatement(), col + 1, val)); | |
| 161 } | |
| 162 | |
| 163 void Statement::BindCString(int col, const char* val) | |
| 164 { | |
| 165 CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val, -1, SQLITE_TRANSIENT)); | |
| 166 } | |
| 167 | |
| 168 void Statement::BindString(int col, const std::string& val) | |
| 169 { | |
| 170 CheckOk(sqlite3_bind_text(GetStatement(), | |
| 171 col + 1, | |
| 172 val.data(), | |
| 173 val.size(), | |
| 174 SQLITE_TRANSIENT)); | |
| 175 } | |
| 176 | |
| 177 /*void Statement::BindString16(int col, const string16& value) | |
| 178 { | |
| 179 BindString(col, UTF16ToUTF8(value)); | |
| 180 }*/ | |
| 181 | |
| 182 void Statement::BindBlob(int col, const void* val, int val_len) | |
| 183 { | |
| 184 CheckOk(sqlite3_bind_blob(GetStatement(), col + 1, val, val_len, SQLITE_TRANSIENT)); | |
| 185 } | |
| 186 | |
| 187 | |
| 188 int Statement::ColumnCount() const | |
| 189 { | |
| 190 return sqlite3_column_count(GetStatement()); | |
| 191 } | |
| 192 | |
| 193 | |
| 194 ColumnType Statement::GetColumnType(int col) const | |
| 195 { | |
| 196 // Verify that our enum matches sqlite's values. | |
| 197 assert(COLUMN_TYPE_INTEGER == SQLITE_INTEGER); | |
| 198 assert(COLUMN_TYPE_FLOAT == SQLITE_FLOAT); | |
| 199 assert(COLUMN_TYPE_TEXT == SQLITE_TEXT); | |
| 200 assert(COLUMN_TYPE_BLOB == SQLITE_BLOB); | |
| 201 assert(COLUMN_TYPE_NULL == SQLITE_NULL); | |
| 202 | |
| 203 return static_cast<ColumnType>(sqlite3_column_type(GetStatement(), col)); | |
| 204 } | |
| 205 | |
| 206 ColumnType Statement::GetDeclaredColumnType(int col) const | |
| 207 { | |
| 208 std::string column_type(sqlite3_column_decltype(GetStatement(), col)); | |
| 209 Toolbox::ToLowerCase(column_type); | |
| 210 | |
| 211 if (column_type == "integer") | |
| 212 return COLUMN_TYPE_INTEGER; | |
| 213 else if (column_type == "float") | |
| 214 return COLUMN_TYPE_FLOAT; | |
| 215 else if (column_type == "text") | |
| 216 return COLUMN_TYPE_TEXT; | |
| 217 else if (column_type == "blob") | |
| 218 return COLUMN_TYPE_BLOB; | |
| 219 | |
| 220 return COLUMN_TYPE_NULL; | |
| 221 } | |
| 222 | |
| 80 | 223 bool Statement::ColumnIsNull(int col) const |
| 224 { | |
| 225 return sqlite3_column_type(GetStatement(), col) == SQLITE_NULL; | |
| 226 } | |
| 227 | |
| 0 | 228 bool Statement::ColumnBool(int col) const |
| 229 { | |
| 230 return !!ColumnInt(col); | |
| 231 } | |
| 232 | |
| 233 int Statement::ColumnInt(int col) const | |
| 234 { | |
| 235 return sqlite3_column_int(GetStatement(), col); | |
| 236 } | |
| 237 | |
| 238 int64_t Statement::ColumnInt64(int col) const | |
| 239 { | |
| 240 return sqlite3_column_int64(GetStatement(), col); | |
| 241 } | |
| 242 | |
| 243 double Statement::ColumnDouble(int col) const | |
| 244 { | |
| 245 return sqlite3_column_double(GetStatement(), col); | |
| 246 } | |
| 247 | |
| 248 std::string Statement::ColumnString(int col) const | |
| 249 { | |
| 250 const char* str = reinterpret_cast<const char*>( | |
| 251 sqlite3_column_text(GetStatement(), col)); | |
| 252 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 253 | |
| 254 std::string result; | |
| 255 if (str && len > 0) | |
| 256 result.assign(str, len); | |
| 257 return result; | |
| 258 } | |
| 259 | |
| 260 /*string16 Statement::ColumnString16(int col) const | |
| 261 { | |
| 262 std::string s = ColumnString(col); | |
| 263 return !s.empty() ? UTF8ToUTF16(s) : string16(); | |
| 264 }*/ | |
| 265 | |
| 266 int Statement::ColumnByteLength(int col) const | |
| 267 { | |
| 268 return sqlite3_column_bytes(GetStatement(), col); | |
| 269 } | |
| 270 | |
| 271 const void* Statement::ColumnBlob(int col) const | |
| 272 { | |
| 273 return sqlite3_column_blob(GetStatement(), col); | |
| 274 } | |
| 275 | |
| 276 bool Statement::ColumnBlobAsString(int col, std::string* blob) | |
| 277 { | |
| 278 const void* p = ColumnBlob(col); | |
| 279 size_t len = ColumnByteLength(col); | |
| 280 blob->resize(len); | |
| 281 if (blob->size() != len) { | |
| 282 return false; | |
| 283 } | |
| 284 blob->assign(reinterpret_cast<const char*>(p), len); | |
| 285 return true; | |
| 286 } | |
| 287 | |
| 288 /*bool Statement::ColumnBlobAsString16(int col, string16* val) const | |
| 289 { | |
| 290 const void* data = ColumnBlob(col); | |
| 291 size_t len = ColumnByteLength(col) / sizeof(char16); | |
| 292 val->resize(len); | |
| 293 if (val->size() != len) | |
| 294 return false; | |
| 295 val->assign(reinterpret_cast<const char16*>(data), len); | |
| 296 return true; | |
| 297 }*/ | |
| 298 | |
| 724 | 299 /*bool Statement::ColumnBlobAsVector(int col, std::vector<char>* val) const |
| 0 | 300 { |
| 301 val->clear(); | |
| 302 | |
| 303 const void* data = sqlite3_column_blob(GetStatement(), col); | |
| 304 int len = sqlite3_column_bytes(GetStatement(), col); | |
| 305 if (data && len > 0) { | |
| 306 val->resize(len); | |
| 307 memcpy(&(*val)[0], data, len); | |
| 308 } | |
| 309 return true; | |
| 724 | 310 }*/ |
| 0 | 311 |
| 724 | 312 /*bool Statement::ColumnBlobAsVector( |
| 0 | 313 int col, |
| 314 std::vector<unsigned char>* val) const | |
| 315 { | |
| 316 return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val)); | |
| 724 | 317 }*/ |
| 0 | 318 |
| 319 } | |
| 320 } |