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//
// Statement.cpp
//
// Library: Data
// Package: DataCore
// Module: Statement
//
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Data/Statement.h"
#include "Poco/Data/DataException.h"
#include "Poco/Data/Extraction.h"
#include "Poco/Data/Session.h"
#include "Poco/Data/Bulk.h"
#include "Poco/Any.h"
#include "Poco/Tuple.h"
#include "Poco/ActiveMethod.h"
#include <algorithm>
namespace Poco {
namespace Data {
Statement::Statement(StatementImpl::Ptr pImpl):
_pImpl(pImpl),
_async(false)
{
poco_check_ptr (pImpl);
}
Statement::Statement(Session& session):
_async(false)
{
reset(session);
}
Statement::Statement(const Statement& stmt):
_pImpl(stmt._pImpl),
_async(stmt._async),
_pResult(stmt._pResult),
_pAsyncExec(stmt._pAsyncExec),
_arguments(stmt._arguments),
_pRowFormatter(stmt._pRowFormatter)
{
}
Statement::~Statement()
{
}
Statement& Statement::operator = (const Statement& stmt)
{
Statement tmp(stmt);
swap(tmp);
return *this;
}
void Statement::swap(Statement& other)
{
using std::swap;
swap(_pImpl, other._pImpl);
swap(_async, other._async);
swap(_pAsyncExec, other._pAsyncExec);
swap(_pResult, other._pResult);
_arguments.swap(other._arguments);
swap(_pRowFormatter, other._pRowFormatter);
}
Statement& Statement::reset(Session& session)
{
Statement stmt(session.createStatementImpl());
swap(stmt);
return *this;
}
std::size_t Statement::execute(bool reset)
{
Mutex::ScopedLock lock(_mutex);
bool isDone = done();
if (initialized() || paused() || isDone)
{
if (_arguments.size())
{
_pImpl->formatSQL(_arguments);
_arguments.clear();
}
if (!isAsync())
{
if (isDone) _pImpl->reset();
return _pImpl->execute(reset);
}
else
{
doAsyncExec();
return 0;
}
}
else throw InvalidAccessException("Statement still executing.");
}
const Statement::Result& Statement::executeAsync(bool reset)
{
Mutex::ScopedLock lock(_mutex);
if (initialized() || paused() || done())
return doAsyncExec(reset);
else
throw InvalidAccessException("Statement still executing.");
}
const Statement::Result& Statement::doAsyncExec(bool reset)
{
if (done()) _pImpl->reset();
if (!_pAsyncExec)
_pAsyncExec = new AsyncExecMethod(_pImpl, &StatementImpl::execute);
_pResult = new Result((*_pAsyncExec)(reset));
return *_pResult;
}
void Statement::setAsync(bool async)
{
_async = async;
if (_async && !_pAsyncExec)
_pAsyncExec = new AsyncExecMethod(_pImpl, &StatementImpl::execute);
}
std::size_t Statement::wait(long milliseconds)
{
if (!_pResult) return 0;
bool success = true;
if (WAIT_FOREVER != milliseconds)
success = _pResult->tryWait(milliseconds);
else
_pResult->wait();
if (_pResult->exception())
throw *_pResult->exception();
else if (!success)
throw TimeoutException("Statement timed out.");
return _pResult->data();
}
const std::string& Statement::getStorage() const
{
switch (storage())
{
case STORAGE_VECTOR:
return StatementImpl::VECTOR;
case STORAGE_LIST:
return StatementImpl::LIST;
case STORAGE_DEQUE:
return StatementImpl::DEQUE;
case STORAGE_UNKNOWN:
return StatementImpl::UNKNOWN;
}
throw IllegalStateException("Invalid storage setting.");
}
Statement& Statement::operator , (Manipulator manip)
{
manip(*this);
return *this;
}
Statement& Statement::addBind(AbstractBinding::Ptr pBind)
{
if (pBind->isBulk())
{
if (!_pImpl->isBulkSupported())
throw InvalidAccessException("Bulk not supported by this session.");
if(_pImpl->bulkBindingAllowed())
_pImpl->setBulkBinding();
else
throw InvalidAccessException("Bulk and non-bulk binding modes can not be mixed.");
}
else _pImpl->forbidBulk();
_pImpl->addBind(pBind);
return *this;
}
Statement& Statement::addExtract(AbstractExtraction::Ptr pExtract)
{
if (pExtract->isBulk())
{
if (!_pImpl->isBulkSupported())
throw InvalidAccessException("Bulk not supported by this session.");
if(_pImpl->bulkExtractionAllowed())
{
Bulk b(pExtract->getLimit());
_pImpl->setBulkExtraction(b);
}
else
throw InvalidAccessException("Bulk and non-bulk extraction modes can not be mixed.");
}
else _pImpl->forbidBulk();
_pImpl->addExtract(pExtract);
return *this;
}
Statement& Statement::operator , (const Limit& extrLimit)
{
if (_pImpl->isBulkExtraction() && _pImpl->extractionLimit() != extrLimit)
throw InvalidArgumentException("Limit for bulk extraction already set.");
_pImpl->setExtractionLimit(extrLimit);
return *this;
}
Statement& Statement::operator , (const Range& extrRange)
{
if (_pImpl->isBulkExtraction())
throw InvalidAccessException("Can not set range for bulk extraction.");
_pImpl->setExtractionLimit(extrRange.lower());
_pImpl->setExtractionLimit(extrRange.upper());
return *this;
}
Statement& Statement::operator , (const Bulk& bulk)
{
if (!_pImpl->isBulkSupported())
throw InvalidAccessException("Bulk not supported by this session.");
if (0 == _pImpl->extractions().size() &&
0 == _pImpl->bindings().size() &&
_pImpl->bulkExtractionAllowed() &&
_pImpl->bulkBindingAllowed())
{
_pImpl->setBulkExtraction(bulk);
_pImpl->setBulkBinding();
}
else
throw InvalidAccessException("Can not set bulk operations.");
return *this;
}
Statement& Statement::operator , (BulkFnType)
{
const Limit& limit(_pImpl->extractionLimit());
if (limit.isHardLimit() ||
limit.isLowerLimit() ||
Limit::LIMIT_UNLIMITED == limit.value())
{
throw InvalidAccessException("Bulk is only allowed with limited extraction,"
"non-hard and zero-based limits.");
}
Bulk bulk(limit);
_pImpl->setBulkExtraction(bulk);
_pImpl->setBulkBinding();
return *this;
}
Session Statement::session()
{
Poco::AutoPtr<SessionImpl> ps(&impl()->session(), true);
return Session(ps);
}
} } // namespace Poco::Data
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