1 // ANNA - Anna is Not Nothingness Anymore //
3 // (c) Copyright 2005-2015 Eduardo Ramos Testillano & Francisco Ruiz Rayo //
5 // See project site at http://redmine.teslayout.com/projects/anna-suite //
6 // See accompanying file LICENSE or copy at http://www.teslayout.com/projects/public/anna.LICENSE //
9 #include <mysql/mysql.h>
11 #include <anna/config/defines.hpp>
12 #include <anna/core/tracing/Logger.hpp>
13 #include <anna/core/DataBlock.hpp>
15 #include <anna/dbms/Float.hpp>
16 #include <anna/dbms/ShortBlock.hpp>
17 #include <anna/dbms/LongBlock.hpp>
18 #include <anna/dbms/String.hpp>
19 #include <anna/dbms/Date.hpp>
20 #include <anna/dbms/TimeStamp.hpp>
22 #include <anna/dbms.mysql/mysql.hpp>
27 OutputBind::OutputBind(const char* name, dbms::Data& data) :
28 dbms::OutputBind(name, data),
30 a_blob = (data.getType() == Data::Type::LongBlock) ? new Blob : NULL;
33 OutputBind::~OutputBind() {
38 * El dato de LONG BLOB se recoge según cuenta:
39 * http://dev.mysql.com/doc/refman/4.1/en/mysql-stmt-fetch.html.
41 void OutputBind::prepare(anna::dbms::Statement* dbmsStmt, anna::dbms::Connection*, const int pos)
43 st_mysql_bind* bind = static_cast <dbms::mysql::Statement*>(dbmsStmt)->getBindResults() + pos;
44 Data& data = anna::dbms::Bind::getData();
45 BaseBind::setupBind(*bind, data);
47 if(data.getType() == Data::Type::LongBlock) {
48 dbms::mysql::Statement* myStmt = static_cast <dbms::mysql::Statement*>(dbmsStmt);
49 a_blob->stmt = *myStmt;
50 a_blob->binds = myStmt->getBindResults();
52 bind->buffer_type = MYSQL_TYPE_BLOB;
54 bind->buffer_length = 0;
55 bind->length = &a_length;
60 * Transfiere la información del los MYSQL_BIND del API C de MySQL a las
61 * estructuras dbms::Data de nuestro programa C++.
63 void OutputBind::decode() const
65 OutputBind* _this = const_cast <OutputBind*>(this);
67 Data& data = _this->getData();
68 data.setNull(a_nullIndicator == true);
70 switch(data.getType()) {
71 case Data::Type::String:
72 str = (char*) data.getBuffer();
74 if(data.isNull() == true)
77 dbms::String::strip(str);
80 case Data::Type::Float:
82 if(data.isNull() == true)
83 static_cast <dbms::Float&>(data) = 0.0;
86 case Data::Type::Date:
87 case Data::Type::TimeStamp:
88 _this->decodeDate(data);
90 case Data::Type::Integer:
91 throw RuntimeException("anna::dbms::mysql::OutputBind::decode not implemented for Data::Type::Integer", ANNA_FILE_LOCATION);
93 case Data::Type::ShortBlock:
94 throw RuntimeException("anna::dbms::mysql::OutputBind::decode not implemented for Data::Type::ShortBlock", ANNA_FILE_LOCATION);
96 case Data::Type::LongBlock:
99 _this->decodeLongBlob(data);
100 } catch(dbms::DatabaseException& edb) {
101 throw RuntimeException(edb);
108 void OutputBind::do_write(const dbms::LongBlock&) const
113 * El m�todo BaseBind::setupBind asocia� el contenido de la variable
114 * a_time al buffer de salida de la sentencia SQL, as� que el contenido
115 * de la columna est� contenido ah�. S�lo tendremos que copiar dichos
116 * contenidos en la variable C++ de nuestro entorno.
118 void OutputBind::decodeDate(dbms::Data& data)
120 if(data.isNull() == true)
123 Date& date = static_cast <Date&>(data);
124 date.setYear(a_time->year);
125 date.setMonth(a_time->month);
126 date.setDay(a_time->day);
127 date.setHour(a_time->hour);
128 date.setMinute(a_time->minute);
129 date.setSecond(a_time->second);
131 if(data.getType() == Data::Type::TimeStamp)
132 static_cast <dbms::TimeStamp&>(data).setFractionalSecond(a_time->second_part);
136 * Según http://dev.mysql.com/doc/refman/4.1/en/mysql-stmt-fetch.html
138 * Recoge el contenido total de BLOB en partes que va componiendo sobre el
139 * DataBlock final asociado al anna::dbms::LongBlock sobre el que trabaja el
142 void OutputBind::decodeLongBlob(dbms::Data& data) const
144 const int bufferSize = a_blob->buffer.getMaxSize();
145 st_mysql_bind& bind = a_blob->binds [a_blob->pos];
146 DataBlock& target = static_cast <dbms::LongBlock&>(data).getValue();
147 const int maxloop = *bind.length / bufferSize;
148 const int remainder = *bind.length % bufferSize;
151 bind.buffer = (void*) a_blob->buffer.getData();
153 for(int iloop = 0; iloop < maxloop; iloop ++) {
154 bind.buffer_length = bufferSize;
155 anna_dbms_mysql_check(
156 mysql_stmt_fetch_column(a_blob->stmt, a_blob->binds, a_blob->pos, offset), a_blob->stmt
158 target += DataBlock((const char*) bind.buffer, bind.buffer_length, false);
159 offset += bufferSize;
163 bind.buffer_length = remainder;
164 anna_dbms_mysql_check(
165 mysql_stmt_fetch_column(a_blob->stmt, a_blob->binds, a_blob->pos, offset), a_blob->stmt
167 target += DataBlock((const char*) bind.buffer, remainder, false);
171 OutputBind::Blob::Blob() :
173 buffer.allocate(64 * 1024);