8000 Initial commit of existing source code by dloney · Pull Request #1 · DOI-BOR/ostrich · GitHub
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Initial commit of existing source code #1

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Merged
merged 1 commit into from
Apr 20, 2020
Merged

Initial commit of existing source code #1

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173 changes: 173 additions & 0 deletions ADOConnection.cpp
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/******************************************************************************
ile : ADOConnection.cpp
Author : Tsu-Wei Webber Chen
Copyright : 2010, Tsu-Wei Webber Chen

An implementation of ADO.NET connection.

Version History
08-01-07 tws created
******************************************************************************/
#include "ADOConnection.h"

#ifdef WIN32
#include <string>
#include <iostream>
using namespace std;

#include "Exception.h"

/******************************************************************************
CTOR

Initializes parameters with the appropriate connection string.
******************************************************************************/
ADOConnection::ADOConnection(char * connectionString)
{
string cString(connectionString);
bstrConnect = cString.c_str();
hr = CoInitialize(NULL);
if (FAILED(hr))
{
LogError(ERR_FILE_IO, "ADOConnection(): Failed to CoInitialize() COM.");
}
}/* end default CTOR */

/******************************************************************************
Read

Reads an ADO database.
******************************************************************************/
void ADOConnection::Read(char * table, char * keyColumn, char * key, char * column, char * name, char * fileName)
{
try
{
FILE * pFile;
string s_fileName(fileName);
s_fileName = s_fileName.substr(0, s_fileName.find_last_of('.'));
s_fileName += ".txt";
pFile = fopen(s_fileName.c_str(), "a");
string s_table(table);
string s_keyColumn(keyColumn);
string s_key(key);
string s_column(column);
string s_query = "SELECT " + s_column + " FROM " + s_table + " WHERE " + s_keyColumn + "=" + s_key;
ADODB::_ConnectionPtr pConn("ADODB.Connection");
hr = pConn->Open(bstrConnect, "admin", "", ADODB::adConnectUnspecified);
if (SUCCEEDED(hr))
{
// Prepare SQL query.
_bstr_t query = s_query.c_str();

// Excecute the query and create a record set
ADODB::_RecordsetPtr pRS("ADODB.Recordset");
hr = pRS->Open(query,
_variant_t((IDispatch *) pConn, true),
ADODB::adOpenUnspecified,
ADODB::adLockUnspecified,
ADODB::adCmdText);
if (SUCCEEDED(hr))
{
ADODB::Fields* pFields = NULL;
hr = pRS->get_Fields(&pFields);
while (!pRS->AdoNSEOF)
{
for (long nIndex=0; nIndex < pFields->GetCount(); nIndex++)
{
string outputLine(name);
string value(_bstr_t(pFields->GetItem(nIndex)->GetValue()));
outputLine += (" " + value + "\n");
fprintf(pFile, outputLine.c_str());
}
pRS->MoveNext();
}
}

pRS->Close();
pConn->Close();
}
else
{
LogError(ERR_FILE_IO, "ADOConnection(): Unable to connection to data source - " + bstrConnect);
}
fclose(pFile);
}
catch(_com_error& e)
{
LogError(ERR_FILE_IO, "ADOConnection(): " + e.Description());
}

CoUninitialize();
}/* end Read */
/******************************************************************************
Write

Writes to an ADO database.
******************************************************************************/
void ADOConnection::Write(char * table, char * keyColumn, char * key, char * column, const char * param)
{
try
{
string s_table(table);
string s_keyColumn(keyColumn);
string s_key(key);
string s_column(column);
string s_param(param);
string s_query = "UPDATE " + s_table + " SET " + s_column + "='" + s_param + "' WHERE " + s_keyColumn + "=" + s_key;
ADODB::_ConnectionPtr pConn("ADODB.Connection");
hr = pConn->Open(bstrConnect, "admin", "", ADODB::adConnectUnspecified);
if (SUCCEEDED(hr))
{
// Prepare SQL query.
_bstr_t query = s_query.c_str();

// Excecute the query and create a record set
ADODB::_RecordsetPtr pRS("ADODB.Recordset");
hr = pRS->Open(query,
pConn.GetInterfacePtr(),
ADODB::adOpenUnspecified,
ADODB::adLockUnspecified,
ADODB::adCmdText);
pConn->Close();
}
else
{
LogError(ERR_FILE_IO, "ADOConnection(): Unable to connection to data source - " + bstrConnect);
}
}
catch(_com_error& e)
{
LogError(ERR_FILE_IO, "ADOConnection(): " + e.Description());
}

CoUninitialize();
}/* end Write */

#else /* not WIN32, no support */
/******************************************************************************
CTOR

Initializes parameters with the appropriate connection string.
******************************************************************************/
ADOConnection::ADOConnection(char * connectionString)
{

}/* end default CTOR */
/******************************************************************************
Read

Reads an ADO database.
******************************************************************************/
void ADOConnection::Read(char * table, char * keyColumn, char * key, char * column, char * name, char * fileName)
{
}/* end Read */
/******************************************************************************
Write

Writes to an ADO database.
******************************************************************************/
void ADOConnection::Write(char * table, char * keyColumn, char * key, char * column, const char * param)
{
}/* end Write */
#endif /* not WIN32 */

47 changes: 47 additions & 0 deletions ADOConnection.h
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/******************************************************************************
File : ADOConnection.h
Author : Tsu-Wei Webber Chen
Copyright: 2010, Tsu-Wei Webber Chen

ADOConnection connects to an ADO.NET database.

Version History
01-25-10 twc Created file.
******************************************************************************/
#ifndef ADO_CONNECTION_H
#define ADO_CONNECTION_H

#ifdef WIN32

#import "msado15.dll" \
rename( "EOF", "AdoNSEOF" )

#include "MyHeaderInc.h"

/******************************************************************************
class ADOConnection
******************************************************************************/
class ADOConnection
{
public:
ADOConnection(char * connectionString);
void Read(char * table, char * keyColumn, char * key, char * column, char * name, char * fileName);
void Write(char * table, char * keyColumn, char * key, char * column, const char * param);
private:
HRESULT hr;
_bstr_t bstrConnect;
}; /* end class ADOConnection */
#else /* not WIN32 */
/******************************************************************************
class ADOConnection
******************************************************************************/
class ADOConnection
{
public:
ADOConnection(char * connectionString);
void Read(char * table, char * keyColumn, char * key, char * column, char * name, char * fileName);
void Write(char * table, char * keyColumn, char * key, char * column, const char * param);
}; /* end class ADOConnection */
#endif /* not WIN32 */
#endif /* ADO_CONNECTION_H */

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