/**************************************************************
 * 
 * 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.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_connectivity.hxx"

#include "macabcondition.hxx"
#include "MacabHeader.hxx"
#include "MacabRecord.hxx"
#include "connectivity/CommonTools.hxx"

using namespace ::connectivity::macab;
using namespace ::com::sun::star::sdbc;
// -----------------------------------------------------------------------------
MacabCondition::~MacabCondition()
{
}
// -----------------------------------------------------------------------------
MacabConditionConstant::MacabConditionConstant(const sal_Bool bValue)
    : MacabCondition(),
      m_bValue(bValue)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionConstant::isAlwaysTrue() const
{
	return m_bValue;
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionConstant::isAlwaysFalse() const
{
	return !m_bValue;
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionConstant::eval(const MacabRecord *) const
{
	return m_bValue;
}
// -----------------------------------------------------------------------------
MacabConditionColumn::MacabConditionColumn(const MacabHeader *header, const ::rtl::OUString &sColumnName) throw(SQLException)
	: MacabCondition(),
	  m_nFieldNumber(header->getColumnNumber(sColumnName))
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionColumn::isAlwaysTrue() const
{
	// Sometimes true, sometimes false
	return sal_False;
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionColumn::isAlwaysFalse() const
{
	// Sometimes true, sometimes false
	return sal_False;
}
// -----------------------------------------------------------------------------
MacabConditionNull::MacabConditionNull(const MacabHeader *header, const ::rtl::OUString &sColumnName) throw(SQLException)
	: MacabConditionColumn(header, sColumnName)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionNull::eval(const MacabRecord *aRecord) const
{
	macabfield *aValue = aRecord->get(m_nFieldNumber);

	if(aValue == NULL)
		return sal_True;
	else if(aValue->value == NULL)
		return sal_True;
	else
		return sal_False;
}
// -----------------------------------------------------------------------------
MacabConditionNotNull::MacabConditionNotNull(const MacabHeader *header, const ::rtl::OUString &sColumnName) throw(SQLException)
	: MacabConditionColumn(header, sColumnName)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionNotNull::eval(const MacabRecord *aRecord) const
{
	macabfield *aValue = aRecord->get(m_nFieldNumber);

	if(aValue == NULL)
		return sal_False;
	else if(aValue->value == NULL)
		return sal_False;
	else
		return sal_True;
}
// -----------------------------------------------------------------------------
MacabConditionCompare::MacabConditionCompare(const MacabHeader *header, const ::rtl::OUString &sColumnName, const ::rtl::OUString &sMatchString) throw(SQLException)
    : MacabConditionColumn(header, sColumnName),
      m_sMatchString(sMatchString)
{
}
// -----------------------------------------------------------------------------
MacabConditionEqual::MacabConditionEqual(const MacabHeader *header, const ::rtl::OUString &sColumnName, const ::rtl::OUString &sMatchString) throw(SQLException)
	: MacabConditionCompare(header, sColumnName, sMatchString)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionEqual::eval(const MacabRecord *aRecord) const
{
	macabfield *aValue = aRecord->get(m_nFieldNumber);

	if(aValue == NULL)
		return sal_False;

	macabfield *aValue2 = MacabRecord::createMacabField(m_sMatchString,aValue->type);

	if(aValue2 == NULL)
		return sal_False;

	sal_Int32 nReturn = MacabRecord::compareFields(aValue, aValue2);

	delete aValue2;
	return nReturn == 0;
}
// -----------------------------------------------------------------------------
MacabConditionDifferent::MacabConditionDifferent(const MacabHeader *header, const ::rtl::OUString &sColumnName, const ::rtl::OUString &sMatchString) throw(SQLException)
	: MacabConditionCompare(header, sColumnName, sMatchString)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionDifferent::eval(const MacabRecord *aRecord) const
{
	macabfield *aValue = aRecord->get(m_nFieldNumber);

	if(aValue == NULL)
		return sal_False;

	macabfield *aValue2 = MacabRecord::createMacabField(m_sMatchString,aValue->type);

	if(aValue2 == NULL)
		return sal_False;

	sal_Int32 nReturn = MacabRecord::compareFields(aValue, aValue2);

	delete aValue2;
	return nReturn != 0;
}
// -----------------------------------------------------------------------------
MacabConditionSimilar::MacabConditionSimilar(const MacabHeader *header, const ::rtl::OUString &sColumnName, const ::rtl::OUString &sMatchString) throw(SQLException)
	: MacabConditionCompare(header, sColumnName, sMatchString)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionSimilar::eval(const MacabRecord *aRecord) const
{
	macabfield *aValue = aRecord->get(m_nFieldNumber);

	if(aValue == NULL)
		return sal_False;

	::rtl::OUString sName = MacabRecord::fieldToString(aValue);

	return match(m_sMatchString, sName, '\0');
}
// -----------------------------------------------------------------------------
MacabConditionBoolean::MacabConditionBoolean(MacabCondition *pLeft, MacabCondition *pRight)
    : MacabCondition(),
      m_pLeft(pLeft),
      m_pRight(pRight)
{
}
// -----------------------------------------------------------------------------
MacabConditionBoolean::~MacabConditionBoolean()
{
	delete m_pLeft;
	delete m_pRight;
}
// -----------------------------------------------------------------------------
MacabConditionOr::MacabConditionOr(MacabCondition *pLeft, MacabCondition *pRight)
	: MacabConditionBoolean(pLeft, pRight)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionOr::isAlwaysTrue() const
{
	return m_pLeft->isAlwaysTrue() || m_pRight->isAlwaysTrue();
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionOr::isAlwaysFalse() const
{
	return m_pLeft->isAlwaysFalse() && m_pRight->isAlwaysFalse();
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionOr::eval(const MacabRecord *aRecord) const
{
	// We avoid evaluating terms as much as we can
	if (m_pLeft->isAlwaysTrue() || m_pRight->isAlwaysTrue()) return sal_True;
	if (m_pLeft->isAlwaysFalse() && m_pRight->isAlwaysFalse()) return sal_False;

	if (m_pLeft->eval(aRecord)) return sal_True;
	if (m_pRight->eval(aRecord)) return sal_True;

	return sal_False;
}
// -----------------------------------------------------------------------------
MacabConditionAnd::MacabConditionAnd(MacabCondition *pLeft, MacabCondition *pRight)
	: MacabConditionBoolean(pLeft, pRight)
{
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionAnd::isAlwaysTrue() const
{
	return m_pLeft->isAlwaysTrue() && m_pRight->isAlwaysTrue();
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionAnd::isAlwaysFalse() const
{
	return m_pLeft->isAlwaysFalse() || m_pRight->isAlwaysFalse();
}
// -----------------------------------------------------------------------------
sal_Bool MacabConditionAnd::eval(const MacabRecord *aRecord) const
{
	// We avoid evaluating terms as much as we can
	if (m_pLeft->isAlwaysFalse() || m_pRight->isAlwaysFalse()) return sal_False;
	if (m_pLeft->isAlwaysTrue() && m_pRight->isAlwaysTrue()) return sal_True;

	if (!m_pLeft->eval(aRecord)) return sal_False;
	if (!m_pRight->eval(aRecord)) return sal_False;

	return sal_True;
}