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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 <string>
#include <qpid/Exception.h>
#include <qpid/log/Statement.h>
#include "TplRecordset.h"
#include "BlobEncoder.h"
#include "DatabaseConnection.h"
#include "VariantHelper.h"
namespace {
inline void TESTHR(HRESULT x) {if FAILED(x) _com_issue_error(x);};
}
namespace qpid {
namespace store {
namespace ms_sql {
void
TplRecordset::open(DatabaseConnection* conn, const std::string& table)
{
init(conn, table);
// Don't actually open until we know what to do. It's far easier and more
// efficient to simply do most of these TPL/xid ops in a single statement.
}
void
TplRecordset::add(const std::string& xid)
{
const std::string command =
"INSERT INTO " + tableName + " ( xid ) VALUES ( ? )";
_CommandPtr cmd = NULL;
_ParameterPtr xidVal = NULL;
TESTHR(cmd.CreateInstance(__uuidof(Command)));
TESTHR(xidVal.CreateInstance(__uuidof(Parameter)));
_ConnectionPtr p = *dbConn;
cmd->ActiveConnection = p;
cmd->CommandText = command.c_str();
cmd->CommandType = adCmdText;
xidVal->Name = "@xid";
xidVal->Type = adVarBinary;
xidVal->Size = xid.length();
xidVal->Direction = adParamInput;
xidVal->Value = BlobEncoder(xid);
cmd->Parameters->Append(xidVal);
cmd->Execute(NULL, NULL, adCmdText | adExecuteNoRecords);
}
void
TplRecordset::remove(const std::string& xid)
{
// Look up the item by its xid
const std::string command =
"DELETE FROM " + tableName + " WHERE xid = ?";
_CommandPtr cmd = NULL;
_ParameterPtr xidVal = NULL;
TESTHR(cmd.CreateInstance(__uuidof(Command)));
TESTHR(xidVal.CreateInstance(__uuidof(Parameter)));
_ConnectionPtr p = *dbConn;
cmd->ActiveConnection = p;
cmd->CommandText = command.c_str();
cmd->CommandType = adCmdText;
xidVal->Name = "@xid";
xidVal->Type = adVarBinary;
xidVal->Size = xid.length();
xidVal->Direction = adParamInput;
xidVal->Value = BlobEncoder(xid);
cmd->Parameters->Append(xidVal);
_variant_t deletedRecords;
cmd->Execute(&deletedRecords, NULL, adCmdText | adExecuteNoRecords);
}
void
TplRecordset::recover(std::set<std::string>& xids)
{
openRs();
if (rs->BOF && rs->EndOfFile)
return; // Nothing to do
rs->MoveFirst();
while (!rs->EndOfFile) {
_variant_t wxid = rs->Fields->Item["xid"]->Value;
char *xidBytes;
SafeArrayAccessData(wxid.parray, (void **)&xidBytes);
std::string xid(xidBytes, rs->Fields->Item["xid"]->ActualSize);
xids.insert(xid);
SafeArrayUnaccessData(wxid.parray);
rs->MoveNext();
}
}
void
TplRecordset::dump()
{
Recordset::dump();
if (rs->EndOfFile && rs->BOF) // No records
return;
rs->MoveFirst();
while (!rs->EndOfFile) {
_bstr_t wxid = rs->Fields->Item["xid"]->Value;
QPID_LOG(notice, " -> " << (const char *)wxid);
rs->MoveNext();
}
}
}}} // namespace qpid::store::ms_sql
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