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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#include "DatabaseConnection.h"
#include "Exception.h"
#include <comdef.h>
namespace {
inline void TESTHR(HRESULT x) {if FAILED(x) _com_issue_error(x);};
}
namespace qpid {
namespace store {
namespace ms_sql {
DatabaseConnection::DatabaseConnection() : conn(0)
{
}
DatabaseConnection::~DatabaseConnection()
{
close();
}
void
DatabaseConnection::open(const std::string& connectString,
const std::string& dbName)
{
if (conn && conn->State == adStateOpen)
return;
std::string adoConnect = "Provider=SQLOLEDB;" + connectString;
try {
TESTHR(conn.CreateInstance(__uuidof(Connection)));
conn->ConnectionString = adoConnect.c_str();
conn->Open("", "", "", adConnectUnspecified);
if (dbName.length() > 0)
conn->DefaultDatabase = dbName.c_str();
}
catch(_com_error &e) {
close();
throw ADOException("MSSQL can't open " + dbName + " at " + adoConnect, e);
}
}
void
DatabaseConnection::close()
{
if (conn && conn->State == adStateOpen)
conn->Close();
conn = 0;
}
std::string
DatabaseConnection::getErrors()
{
long errCount = conn->Errors->Count;
if (errCount <= 0)
return "";
// Collection ranges from 0 to nCount -1.
std::ostringstream messages;
ErrorPtr pErr = NULL;
for (long i = 0 ; i < errCount ; i++ ) {
if (i > 0)
messages << "\n";
messages << "[" << i << "] ";
pErr = conn->Errors->GetItem(i);
messages << "Error " << pErr->Number << ": "
<< (LPCSTR)pErr->Description;
}
messages << std::ends;
return messages.str();
}
}}} // namespace qpid::store::ms_sql
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