/**************************************************************
 * 
 * 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 "adabas/BResultSet.hxx"
#include "adabas/BResultSetMetaData.hxx"
#include <com/sun/star/lang/DisposedException.hpp>
#include "odbc/OTools.hxx"

using namespace connectivity::adabas;
using namespace connectivity::odbc;
using namespace cppu;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
using namespace com::sun::star::beans;
using namespace com::sun::star::sdbc;
using namespace com::sun::star::sdbcx;
using namespace com::sun::star::container;
using namespace com::sun::star::io;
using namespace com::sun::star::util;

// comment: all this movement methods are needed because adabas doesn't support a SQLGetData call when
// the cursor was moved with a call of SQLFetchScroll. So when this is fixed by adabas we can remove this damn thing.


sal_Bool SAL_CALL OAdabasResultSet::next(  ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	m_nLastColumnPos = 0;
	//	m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_NEXT,0);
	m_nCurrentFetchState = N3SQLFetch(m_aStatementHandle);

	if(m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO)
		++m_nRowPos;

	OTools::ThrowException(m_pStatement->getOwnConnection(),m_nCurrentFetchState,m_aStatementHandle,SQL_HANDLE_STMT,*this);
	return m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO;
}
// -----------------------------------------------------------------------------
sal_Bool SAL_CALL OAdabasResultSet::first(  ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	m_nLastColumnPos = 0;
	// don't ask why !
	N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_OFF,SQL_IS_UINTEGER);
	m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_FIRST,0);
	sal_Bool bRet = m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO;
	if(bRet)
	{
		m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_PRIOR,0);
		N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_ON,SQL_IS_UINTEGER);
		m_nCurrentFetchState = N3SQLFetch(m_aStatementHandle);
	}

	OTools::ThrowException(m_pStatement->getOwnConnection(),m_nCurrentFetchState,m_aStatementHandle,SQL_HANDLE_STMT,*this);

    bRet = ( m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO );
	if ( bRet )
		m_nRowPos = 1;
	return bRet;
}
// -------------------------------------------------------------------------

sal_Bool SAL_CALL OAdabasResultSet::last(  ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	m_nLastColumnPos = 0;
	N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_OFF,SQL_IS_UINTEGER);
	m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_LAST,0);
	sal_Bool bRet = m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO;
	if(bRet)
	{
		m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_PRIOR,0);
		N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_ON,SQL_IS_UINTEGER);
		m_nCurrentFetchState = N3SQLFetch(m_aStatementHandle);
	}

	m_bEOF = sal_True;
	OTools::ThrowException(m_pStatement->getOwnConnection(),m_nCurrentFetchState,m_aStatementHandle,SQL_HANDLE_STMT,*this);
	// here I know definitely that I stand on the last record
	return m_bLastRecord = (m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO);
}
// -------------------------------------------------------------------------
sal_Bool SAL_CALL OAdabasResultSet::absolute( sal_Int32 row ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	m_nLastColumnPos = 0;
	N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_OFF,SQL_IS_UINTEGER);

	m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_ABSOLUTE,row);
	sal_Bool bRet = m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO;
	if(bRet)
	{
		m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_PRIOR,0);
		N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_ON,SQL_IS_UINTEGER);
		m_nCurrentFetchState = N3SQLFetch(m_aStatementHandle);
	}

	OTools::ThrowException(m_pStatement->getOwnConnection(),m_nCurrentFetchState,m_aStatementHandle,SQL_HANDLE_STMT,*this);
	if(bRet)
		m_nRowPos = row;
	return bRet;
}
// -------------------------------------------------------------------------
sal_Bool SAL_CALL OAdabasResultSet::relative( sal_Int32 row ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	m_nLastColumnPos = 0;
	N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_OFF,SQL_IS_UINTEGER);
	m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_RELATIVE,row);
	sal_Bool bRet = m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO;
	if(bRet)
	{
		m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_PRIOR,0);
		N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_ON,SQL_IS_UINTEGER);
		m_nCurrentFetchState = N3SQLFetch(m_aStatementHandle);
	}

	OTools::ThrowException(m_pStatement->getOwnConnection(),m_nCurrentFetchState,m_aStatementHandle,SQL_HANDLE_STMT,*this);
	if(bRet)
		m_nRowPos += row;
	return bRet;
}
// -------------------------------------------------------------------------
sal_Bool SAL_CALL OAdabasResultSet::previous(  ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	m_nLastColumnPos = 0;
	N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_OFF,SQL_IS_UINTEGER);
	m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_PRIOR,0);
	sal_Bool bRet = m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO;
	if(bRet)
	{
		m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_PRIOR,0);
		N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_ON,SQL_IS_UINTEGER);
		m_nCurrentFetchState = N3SQLFetch(m_aStatementHandle);
	}

	OTools::ThrowException(m_pStatement->getOwnConnection(),m_nCurrentFetchState,m_aStatementHandle,SQL_HANDLE_STMT,*this);
	if(bRet || m_nCurrentFetchState == SQL_NO_DATA)
		--m_nRowPos;
	return bRet;
}
// -----------------------------------------------------------------------------
void SAL_CALL OAdabasResultSet::refreshRow(  ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	//	SQLRETURN nRet = N3SQLSetPos(m_aStatementHandle,1,SQL_REFRESH,SQL_LOCK_NO_CHANGE);
	N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_OFF,SQL_IS_UINTEGER);
	m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_RELATIVE,0);
	sal_Bool bRet = m_nCurrentFetchState == SQL_SUCCESS || m_nCurrentFetchState == SQL_SUCCESS_WITH_INFO;
	if(bRet)
	{
		m_nCurrentFetchState = N3SQLFetchScroll(m_aStatementHandle,SQL_FETCH_PRIOR,0);
		N3SQLSetStmtAttr(m_aStatementHandle,SQL_ATTR_RETRIEVE_DATA,(SQLPOINTER)SQL_RD_ON,SQL_IS_UINTEGER);
		m_nCurrentFetchState = N3SQLFetch(m_aStatementHandle);
	}
	OTools::ThrowException(m_pStatement->getOwnConnection(),m_nCurrentFetchState,m_aStatementHandle,SQL_HANDLE_STMT,*this);
}
// -----------------------------------------------------------------------------
Reference< XResultSetMetaData > SAL_CALL OAdabasResultSet::getMetaData(  ) throw(SQLException, RuntimeException)
{
	::osl::MutexGuard aGuard( m_aMutex );
	checkDisposed(OResultSet_BASE::rBHelper.bDisposed);


	if(!m_xMetaData.is())
		m_xMetaData = new OAdabasResultSetMetaData(m_pStatement->getOwnConnection(),m_aStatementHandle,m_aSelectColumns);
	return m_xMetaData;
}
// -----------------------------------------------------------------------------