Mercurial > hg > orthanc
view Core/SQLite/Statement.cpp @ 823:da4c30a8bcdd templating
plustache
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 28 May 2014 16:21:48 +0200 |
parents | 96a2d2da0fee |
children | a811bdf8b8eb |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, * Belgium * * Copyright (c) 2012 The Chromium Authors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc., the name of the CHU of Liege, * nor the names of its contributors may be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. **/ #include "Statement.h" #include "Connection.h" #include "../Toolbox.h" #include <boost/lexical_cast.hpp> #include <sqlite3.h> #include <string.h> #include <glog/logging.h> namespace Orthanc { namespace SQLite { int Statement::CheckError(int err) const { bool succeeded = (err == SQLITE_OK || err == SQLITE_ROW || err == SQLITE_DONE); if (!succeeded) { throw OrthancException("SQLite error code " + boost::lexical_cast<std::string>(err)); } return err; } void Statement::CheckOk(int err) const { if (err == SQLITE_RANGE) { // Binding to a non-existent variable is evidence of a serious error. throw OrthancException("Bind value out of range"); } else if (err != SQLITE_OK) { throw OrthancException("SQLite error code " + boost::lexical_cast<std::string>(err)); } } Statement::Statement(Connection& database, const StatementId& id, const std::string& sql) : reference_(database.GetCachedStatement(id, sql.c_str())) { Reset(true); } Statement::Statement(Connection& database, const StatementId& id, const char* sql) : reference_(database.GetCachedStatement(id, sql)) { Reset(true); } Statement::Statement(Connection& database, const std::string& sql) : reference_(database.GetWrappedObject(), sql.c_str()) { } Statement::Statement(Connection& database, const char* sql) : reference_(database.GetWrappedObject(), sql) { } bool Statement::Run() { VLOG(1) << "SQLite::Statement::Run " << sqlite3_sql(GetStatement()); return CheckError(sqlite3_step(GetStatement())) == SQLITE_DONE; } bool Statement::Step() { VLOG(1) << "SQLite::Statement::Step " << sqlite3_sql(GetStatement()); return CheckError(sqlite3_step(GetStatement())) == SQLITE_ROW; } void Statement::Reset(bool clear_bound_vars) { // We don't call CheckError() here because sqlite3_reset() returns // the last error that Step() caused thereby generating a second // spurious error callback. if (clear_bound_vars) sqlite3_clear_bindings(GetStatement()); //VLOG(1) << "SQLite::Statement::Reset"; sqlite3_reset(GetStatement()); } std::string Statement::GetOriginalSQLStatement() { return std::string(sqlite3_sql(GetStatement())); } void Statement::BindNull(int col) { CheckOk(sqlite3_bind_null(GetStatement(), col + 1)); } void Statement::BindBool(int col, bool val) { BindInt(col, val ? 1 : 0); } void Statement::BindInt(int col, int val) { CheckOk(sqlite3_bind_int(GetStatement(), col + 1, val)); } void Statement::BindInt64(int col, int64_t val) { CheckOk(sqlite3_bind_int64(GetStatement(), col + 1, val)); } void Statement::BindDouble(int col, double val) { CheckOk(sqlite3_bind_double(GetStatement(), col + 1, val)); } void Statement::BindCString(int col, const char* val) { CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val, -1, SQLITE_TRANSIENT)); } void Statement::BindString(int col, const std::string& val) { CheckOk(sqlite3_bind_text(GetStatement(), col + 1, val.data(), val.size(), SQLITE_TRANSIENT)); } /*void Statement::BindString16(int col, const string16& value) { BindString(col, UTF16ToUTF8(value)); }*/ void Statement::BindBlob(int col, const void* val, int val_len) { CheckOk(sqlite3_bind_blob(GetStatement(), col + 1, val, val_len, SQLITE_TRANSIENT)); } int Statement::ColumnCount() const { return sqlite3_column_count(GetStatement()); } ColumnType Statement::GetColumnType(int col) const { // Verify that our enum matches sqlite's values. assert(COLUMN_TYPE_INTEGER == SQLITE_INTEGER); assert(COLUMN_TYPE_FLOAT == SQLITE_FLOAT); assert(COLUMN_TYPE_TEXT == SQLITE_TEXT); assert(COLUMN_TYPE_BLOB == SQLITE_BLOB); assert(COLUMN_TYPE_NULL == SQLITE_NULL); return static_cast<ColumnType>(sqlite3_column_type(GetStatement(), col)); } ColumnType Statement::GetDeclaredColumnType(int col) const { std::string column_type(sqlite3_column_decltype(GetStatement(), col)); Toolbox::ToLowerCase(column_type); if (column_type == "integer") return COLUMN_TYPE_INTEGER; else if (column_type == "float") return COLUMN_TYPE_FLOAT; else if (column_type == "text") return COLUMN_TYPE_TEXT; else if (column_type == "blob") return COLUMN_TYPE_BLOB; return COLUMN_TYPE_NULL; } bool Statement::ColumnIsNull(int col) const { return sqlite3_column_type(GetStatement(), col) == SQLITE_NULL; } bool Statement::ColumnBool(int col) const { return !!ColumnInt(col); } int Statement::ColumnInt(int col) const { return sqlite3_column_int(GetStatement(), col); } int64_t Statement::ColumnInt64(int col) const { return sqlite3_column_int64(GetStatement(), col); } double Statement::ColumnDouble(int col) const { return sqlite3_column_double(GetStatement(), col); } std::string Statement::ColumnString(int col) const { const char* str = reinterpret_cast<const char*>( sqlite3_column_text(GetStatement(), col)); int len = sqlite3_column_bytes(GetStatement(), col); std::string result; if (str && len > 0) result.assign(str, len); return result; } /*string16 Statement::ColumnString16(int col) const { std::string s = ColumnString(col); return !s.empty() ? UTF8ToUTF16(s) : string16(); }*/ int Statement::ColumnByteLength(int col) const { return sqlite3_column_bytes(GetStatement(), col); } const void* Statement::ColumnBlob(int col) const { return sqlite3_column_blob(GetStatement(), col); } bool Statement::ColumnBlobAsString(int col, std::string* blob) { const void* p = ColumnBlob(col); size_t len = ColumnByteLength(col); blob->resize(len); if (blob->size() != len) { return false; } blob->assign(reinterpret_cast<const char*>(p), len); return true; } /*bool Statement::ColumnBlobAsString16(int col, string16* val) const { const void* data = ColumnBlob(col); size_t len = ColumnByteLength(col) / sizeof(char16); val->resize(len); if (val->size() != len) return false; val->assign(reinterpret_cast<const char16*>(data), len); return true; }*/ /*bool Statement::ColumnBlobAsVector(int col, std::vector<char>* val) const { val->clear(); const void* data = sqlite3_column_blob(GetStatement(), col); int len = sqlite3_column_bytes(GetStatement(), col); if (data && len > 0) { val->resize(len); memcpy(&(*val)[0], data, len); } return true; }*/ /*bool Statement::ColumnBlobAsVector( int col, std::vector<unsigned char>* val) const { return ColumnBlobAsVector(col, reinterpret_cast< std::vector<char>* >(val)); }*/ } }