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|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#include "dbase/DIndex.hxx"
#include "dbase/DIndexColumns.hxx"
#include <com/sun/star/lang/DisposedException.hpp>
#include "connectivity/sdbcx/VColumn.hxx"
#include <comphelper/sequence.hxx>
#include "dbase/DTable.hxx"
#include "dbase/DIndexIter.hxx"
#include <tools/config.hxx>
#include "connectivity/CommonTools.hxx"
#include <com/sun/star/sdbc/XResultSetMetaData.hpp>
#include <com/sun/star/sdbc/XResultSet.hpp>
#include <com/sun/star/sdbcx/XRowLocate.hpp>
#include <com/sun/star/sdbc/XRow.hpp>
#include <comphelper/extract.hxx>
#include <unotools/localfilehelper.hxx>
#include <unotools/ucbhelper.hxx>
#include <comphelper/types.hxx>
#include <connectivity/dbexception.hxx>
#include "dbase/DResultSet.hxx"
#include "diagnose_ex.h"
#include <comphelper/types.hxx>
#include "resource/dbase_res.hrc"
#include <unotools/sharedunocomponent.hxx>
using namespace ::comphelper;
// -------------------------------------------------------------------------
using namespace connectivity;
using namespace utl;
using namespace ::cppu;
using namespace connectivity::file;
using namespace connectivity::sdbcx;
using namespace connectivity::dbase;
using namespace com::sun::star::sdbc;
using namespace com::sun::star::sdbcx;
using namespace com::sun::star::uno;
using namespace com::sun::star::beans;
using namespace com::sun::star::lang;
IMPLEMENT_SERVICE_INFO(ODbaseIndex,"com.sun.star.sdbcx.driver.dbase.Index","com.sun.star.sdbcx.Index");
// -------------------------------------------------------------------------
ODbaseIndex::ODbaseIndex(ODbaseTable* _pTable) : OIndex(sal_True/*_pTable->getConnection()->getMetaData()->supportsMixedCaseQuotedIdentifiers()*/)
,m_pFileStream(NULL)
,m_nCurNode(NODE_NOTFOUND)
,m_pTable(_pTable)
{
m_aHeader.db_pagecount = m_aHeader.db_rootpage = m_aHeader.db_keytype = m_aHeader.db_maxkeys = m_aHeader.db_keylen = 0;
m_aHeader.db_name[0] = '\0';
construct();
}
// -------------------------------------------------------------------------
ODbaseIndex::ODbaseIndex( ODbaseTable* _pTable,
const NDXHeader& _rHeader,
const ::rtl::OUString& _rName)
:OIndex(_rName,::rtl::OUString(),_rHeader.db_unique,sal_False,sal_False,sal_True)
,m_pFileStream(NULL)
,m_aHeader(_rHeader)
,m_nCurNode(NODE_NOTFOUND)
,m_pTable(_pTable)
{
construct();
}
// -----------------------------------------------------------------------------
ODbaseIndex::~ODbaseIndex()
{
closeImpl();
}
// -------------------------------------------------------------------------
void ODbaseIndex::refreshColumns()
{
::osl::MutexGuard aGuard( m_aMutex );
TStringVector aVector;
if(!isNew())
{
OSL_ENSURE(m_pFileStream,"FileStream is not opened!");
OSL_ENSURE(m_aHeader.db_name[0] != '\0',"Invalid name for the column!");
aVector.push_back(::rtl::OUString::createFromAscii(m_aHeader.db_name));
}
if(m_pColumns)
m_pColumns->reFill(aVector);
else
m_pColumns = new ODbaseIndexColumns(this,m_aMutex,aVector);
}
//--------------------------------------------------------------------------
Sequence< sal_Int8 > ODbaseIndex::getUnoTunnelImplementationId()
{
static ::cppu::OImplementationId * pId = 0;
if (! pId)
{
::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
if (! pId)
{
static ::cppu::OImplementationId aId;
pId = &aId;
}
}
return pId->getImplementationId();
}
// XUnoTunnel
//------------------------------------------------------------------
sal_Int64 ODbaseIndex::getSomething( const Sequence< sal_Int8 > & rId ) throw (RuntimeException)
{
return (rId.getLength() == 16 && 0 == rtl_compareMemory(getUnoTunnelImplementationId().getConstArray(), rId.getConstArray(), 16 ) )
? reinterpret_cast< sal_Int64 >( this )
: ODbaseIndex_BASE::getSomething(rId);
}
//------------------------------------------------------------------
ONDXPagePtr ODbaseIndex::getRoot()
{
openIndexFile();
if (!m_aRoot.Is())
{
m_nRootPage = m_aHeader.db_rootpage;
m_nPageCount = m_aHeader.db_pagecount;
m_aRoot = CreatePage(m_nRootPage,NULL,sal_True);
}
return m_aRoot;
}
//------------------------------------------------------------------
sal_Bool ODbaseIndex::openIndexFile()
{
if(!m_pFileStream)
{
::rtl::OUString sFile = getCompletePath();
if(UCBContentHelper::Exists(sFile))
{
m_pFileStream = OFileTable::createStream_simpleError(sFile, STREAM_READWRITE | STREAM_NOCREATE | STREAM_SHARE_DENYWRITE);
if (!m_pFileStream)
m_pFileStream = OFileTable::createStream_simpleError(sFile,STREAM_READ | STREAM_NOCREATE | STREAM_SHARE_DENYNONE);
if(m_pFileStream)
{
m_pFileStream->SetNumberFormatInt(NUMBERFORMAT_INT_LITTLEENDIAN);
m_pFileStream->SetBufferSize(PAGE_SIZE);
(*m_pFileStream) >> *this;
}
}
if(!m_pFileStream)
{
const ::rtl::OUString sError( m_pTable->getConnection()->getResources().getResourceStringWithSubstitution(
STR_COULD_NOT_LOAD_FILE,
"$filename$", sFile
) );
::dbtools::throwGenericSQLException( sError, *this );
}
}
return m_pFileStream != NULL;
}
//------------------------------------------------------------------
OIndexIterator* ODbaseIndex::createIterator(OBoolOperator* pOp,
const OOperand* pOperand)
{
openIndexFile();
return new OIndexIterator(this, pOp, pOperand);
}
//------------------------------------------------------------------
sal_Bool ODbaseIndex::ConvertToKey(ONDXKey* rKey, sal_uInt32 nRec, const ORowSetValue& rValue)
{
OSL_ENSURE(m_pFileStream,"FileStream is not opened!");
// Search a specific value in Index
// If the Index is unique, the key doesn't matter
try
{
if (m_aHeader.db_keytype == 0)
{
*rKey = ONDXKey(rValue.getString(), nRec );
}
else
{
if (rValue.isNull())
*rKey = ONDXKey(rValue.getDouble(), DataType::DOUBLE, nRec );
else
*rKey = ONDXKey(rValue.getDouble(), nRec );
}
}
catch (Exception&)
{
OSL_ASSERT(0);
return sal_False;
}
return sal_True;
}
//------------------------------------------------------------------
sal_Bool ODbaseIndex::Find(sal_uInt32 nRec, const ORowSetValue& rValue)
{
openIndexFile();
OSL_ENSURE(m_pFileStream,"FileStream is not opened!");
// Search a specific value in Index
// If the Index is unique, the key doesn't matter
ONDXKey aKey;
return ConvertToKey(&aKey, nRec, rValue) && getRoot()->Find(aKey);
}
//------------------------------------------------------------------
sal_Bool ODbaseIndex::Insert(sal_uInt32 nRec, const ORowSetValue& rValue)
{
openIndexFile();
OSL_ENSURE(m_pFileStream,"FileStream is not opened!");
ONDXKey aKey;
// Does the value already exist
// Use Find() always to determine the actual leaf
if (!ConvertToKey(&aKey, nRec, rValue) || (getRoot()->Find(aKey) && isUnique()))
return sal_False;
ONDXNode aNewNode(aKey);
// insert in the current leaf
if (!m_aCurLeaf.Is())
return sal_False;
sal_Bool bResult = m_aCurLeaf->Insert(aNewNode);
Release(bResult);
return bResult;
}
//------------------------------------------------------------------
sal_Bool ODbaseIndex::Update(sal_uInt32 nRec, const ORowSetValue& rOldValue,
const ORowSetValue& rNewValue)
{
openIndexFile();
OSL_ENSURE(m_pFileStream,"FileStream is not opened!");
ONDXKey aKey;
if (!ConvertToKey(&aKey, nRec, rNewValue) || (isUnique() && getRoot()->Find(aKey)))
return sal_False;
else
return Delete(nRec, rOldValue) && Insert(nRec,rNewValue);
}
//------------------------------------------------------------------
sal_Bool ODbaseIndex::Delete(sal_uInt32 nRec, const ORowSetValue& rValue)
{
openIndexFile();
OSL_ENSURE(m_pFileStream,"FileStream is not opened!");
// Does the value already exist
// Always use Find() to determine the actual leaf
ONDXKey aKey;
if (!ConvertToKey(&aKey, nRec, rValue) || !getRoot()->Find(aKey))
return sal_False;
ONDXNode aNewNode(aKey);
// insert in the current leaf
if (!m_aCurLeaf.Is())
return sal_False;
#if OSL_DEBUG_LEVEL > 1
m_aRoot->PrintPage();
#endif
return m_aCurLeaf->Delete(m_nCurNode);
}
//------------------------------------------------------------------
void ODbaseIndex::Collect(ONDXPage* pPage)
{
if (pPage)
m_aCollector.push_back(pPage);
}
//------------------------------------------------------------------
void ODbaseIndex::Release(sal_Bool bSave)
{
// Release the Index-recources
m_bUseCollector = sal_False;
if (m_aCurLeaf.Is())
{
m_aCurLeaf->Release(bSave);
m_aCurLeaf.Clear();
}
// Release the root
if (m_aRoot.Is())
{
m_aRoot->Release(bSave);
m_aRoot.Clear();
}
// Release all references, before the FileStream will be closed
for (sal_uIntPtr i = 0; i < m_aCollector.size(); i++)
m_aCollector[i]->QueryDelete();
m_aCollector.clear();
// Header modified?
if (bSave && (m_aHeader.db_rootpage != m_nRootPage ||
m_aHeader.db_pagecount != m_nPageCount))
{
m_aHeader.db_rootpage = m_nRootPage;
m_aHeader.db_pagecount = m_nPageCount;
(*m_pFileStream) << *this;
}
m_nRootPage = m_nPageCount = 0;
m_nCurNode = NODE_NOTFOUND;
closeImpl();
}
// -----------------------------------------------------------------------------
void ODbaseIndex::closeImpl()
{
if(m_pFileStream)
{
delete m_pFileStream;
m_pFileStream = NULL;
}
}
//------------------------------------------------------------------
ONDXPage* ODbaseIndex::CreatePage(sal_uInt32 nPagePos, ONDXPage* pParent, sal_Bool bLoad)
{
OSL_ENSURE(m_pFileStream,"FileStream is not opened!");
ONDXPage* pPage;
if ( !m_aCollector.empty() )
{
pPage = *(m_aCollector.rbegin());
m_aCollector.pop_back();
pPage->SetPagePos(nPagePos);
pPage->SetParent(pParent);
}
else
pPage = new ONDXPage(*this, nPagePos, pParent);
if (bLoad)
(*m_pFileStream) >> *pPage;
return pPage;
}
//------------------------------------------------------------------
SvStream& connectivity::dbase::operator >> (SvStream &rStream, ODbaseIndex& rIndex)
{
rStream.Seek(0);
rStream.Read(&rIndex.m_aHeader,PAGE_SIZE);
rIndex.m_nRootPage = rIndex.m_aHeader.db_rootpage;
rIndex.m_nPageCount = rIndex.m_aHeader.db_pagecount;
return rStream;
}
//------------------------------------------------------------------
SvStream& connectivity::dbase::operator << (SvStream &rStream, ODbaseIndex& rIndex)
{
rStream.Seek(0);
OSL_VERIFY_EQUALS( rStream.Write(&rIndex.m_aHeader,PAGE_SIZE), PAGE_SIZE, "Write not successful: Wrong header size for dbase index!");
return rStream;
}
// -------------------------------------------------------------------------
::rtl::OUString ODbaseIndex::getCompletePath()
{
::rtl::OUString sDir = m_pTable->getConnection()->getURL();
sDir += OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_DELIMITER);
sDir += m_Name;
sDir += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(".ndx"));
return sDir;
}
//------------------------------------------------------------------
void ODbaseIndex::createINFEntry()
{
// synchronize inf-file
String sEntry = m_Name;
sEntry += String::CreateFromAscii(".ndx");
::rtl::OUString sCfgFile(m_pTable->getConnection()->getURL());
sCfgFile += OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_DELIMITER);
sCfgFile += m_pTable->getName();
sCfgFile += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(".inf"));
String sPhysicalPath;
LocalFileHelper::ConvertURLToPhysicalName(sCfgFile,sPhysicalPath);
Config aInfFile(sPhysicalPath);
aInfFile.SetGroup(dBASE_III_GROUP);
sal_uInt16 nSuffix = aInfFile.GetKeyCount();
rtl::OString aNewEntry,aKeyName;
sal_Bool bCase = isCaseSensitive();
while (aNewEntry.isEmpty())
{
aNewEntry = rtl::OString(RTL_CONSTASCII_STRINGPARAM("NDX"));
aNewEntry += rtl::OString::valueOf(static_cast<sal_Int32>(++nSuffix));
for (sal_uInt16 i = 0; i < aInfFile.GetKeyCount(); i++)
{
aKeyName = aInfFile.GetKeyName(i);
if (bCase ? aKeyName.equals(aNewEntry) : aKeyName.equalsIgnoreAsciiCase(aNewEntry))
{
aNewEntry = rtl::OString();
break;
}
}
}
aInfFile.WriteKey(aNewEntry,ByteString(sEntry,m_pTable->getConnection()->getTextEncoding()));
}
// -------------------------------------------------------------------------
sal_Bool ODbaseIndex::DropImpl()
{
closeImpl();
::rtl::OUString sPath = getCompletePath();
if(UCBContentHelper::Exists(sPath))
{
if(!UCBContentHelper::Kill(sPath))
m_pTable->getConnection()->throwGenericSQLException(STR_COULD_NOT_DELETE_INDEX,*m_pTable);
}
// synchronize inf-file
::rtl::OUString sCfgFile(m_pTable->getConnection()->getURL());
sCfgFile += OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_DELIMITER);
sCfgFile += m_pTable->getName();
sCfgFile += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(".inf"));
String sPhysicalPath;
String sNDX(sCfgFile);
OSL_VERIFY_RES( LocalFileHelper::ConvertURLToPhysicalName(sNDX,sPhysicalPath),"Can not convert Config Filename into Physical Name!");
Config aInfFile(sPhysicalPath);
aInfFile.SetGroup(dBASE_III_GROUP);
sal_uInt16 nKeyCnt = aInfFile.GetKeyCount();
ByteString aKeyName;
String sEntry = m_Name;
sEntry += String::CreateFromAscii(".ndx");
// delete entries from the inf file
for (sal_uInt16 nKey = 0; nKey < nKeyCnt; nKey++)
{
// References the Key to an Index-file?
aKeyName = aInfFile.GetKeyName( nKey );
if (aKeyName.Copy(0,3) == "NDX")
{
if(sEntry == String(rtl::OStringToOUString(aInfFile.ReadKey(aKeyName),m_pTable->getConnection()->getTextEncoding())))
{
aInfFile.DeleteKey(aKeyName);
break;
}
}
}
return sal_True;
}
// -------------------------------------------------------------------------
void ODbaseIndex::impl_killFileAndthrowError_throw(sal_uInt16 _nErrorId,const ::rtl::OUString& _sFile)
{
closeImpl();
if(UCBContentHelper::Exists(_sFile))
UCBContentHelper::Kill(_sFile);
m_pTable->getConnection()->throwGenericSQLException(_nErrorId,*this);
}
//------------------------------------------------------------------
sal_Bool ODbaseIndex::CreateImpl()
{
// Create the Index
const ::rtl::OUString sFile = getCompletePath();
if(UCBContentHelper::Exists(sFile))
{
const ::rtl::OUString sError( m_pTable->getConnection()->getResources().getResourceStringWithSubstitution(
STR_COULD_NOT_CREATE_INDEX_NAME,
"$filename$", sFile
) );
::dbtools::throwGenericSQLException( sError, *this );
}
// Index comprises only one column
if (m_pColumns->getCount() > 1)
m_pTable->getConnection()->throwGenericSQLException(STR_ONL_ONE_COLUMN_PER_INDEX,*this);
Reference<XFastPropertySet> xCol(m_pColumns->getByIndex(0),UNO_QUERY);
// Is the column already indexed?
if ( !xCol.is() )
::dbtools::throwFunctionSequenceException(*this);
// create the index file
m_pFileStream = OFileTable::createStream_simpleError(sFile,STREAM_READWRITE | STREAM_SHARE_DENYWRITE | STREAM_TRUNC);
if (!m_pFileStream)
{
const ::rtl::OUString sError( m_pTable->getConnection()->getResources().getResourceStringWithSubstitution(
STR_COULD_NOT_LOAD_FILE,
"$filename$", sFile
) );
::dbtools::throwGenericSQLException( sError, *this );
}
m_pFileStream->SetNumberFormatInt(NUMBERFORMAT_INT_LITTLEENDIAN);
m_pFileStream->SetBufferSize(PAGE_SIZE);
// firstly the result must be sorted
utl::SharedUNOComponent<XStatement> xStmt;
utl::SharedUNOComponent<XResultSet> xSet;
String aName;
try
{
xStmt.set( m_pTable->getConnection()->createStatement(), UNO_SET_THROW);
aName = getString(xCol->getFastPropertyValue(PROPERTY_ID_NAME));
const String aQuote(m_pTable->getConnection()->getMetaData()->getIdentifierQuoteString());
String aStatement;
aStatement.AssignAscii("SELECT ");
aStatement += aQuote;
aStatement += aName;
aStatement += aQuote;
aStatement.AppendAscii(" FROM ");
aStatement += aQuote;
aStatement += m_pTable->getName().getStr();
aStatement += aQuote;
aStatement.AppendAscii(" ORDER BY ");
aStatement += aQuote;
aStatement += aName;
aStatement += aQuote;
xSet.set( xStmt->executeQuery(aStatement),UNO_SET_THROW );
}
catch(const Exception& )
{
impl_killFileAndthrowError_throw(STR_COULD_NOT_CREATE_INDEX,sFile);
}
if (!xSet.is())
{
impl_killFileAndthrowError_throw(STR_COULD_NOT_CREATE_INDEX,sFile);
}
// Set the header info
memset(&m_aHeader,0,sizeof(m_aHeader));
sal_Int32 nType = 0;
::rtl::Reference<OSQLColumns> aCols = m_pTable->getTableColumns();
const Reference< XPropertySet > xTableCol(*find(aCols->get().begin(),aCols->get().end(),aName,::comphelper::UStringMixEqual(isCaseSensitive())));
xTableCol->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_TYPE)) >>= nType;
m_aHeader.db_keytype = (nType == DataType::VARCHAR || nType == DataType::CHAR) ? 0 : 1;
m_aHeader.db_keylen = (m_aHeader.db_keytype) ? 8 : (sal_uInt16)getINT32(xTableCol->getPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_PRECISION)));
m_aHeader.db_keylen = (( m_aHeader.db_keylen - 1) / 4 + 1) * 4;
m_aHeader.db_maxkeys = (PAGE_SIZE - 4) / (8 + m_aHeader.db_keylen);
if ( m_aHeader.db_maxkeys < 3 )
{
impl_killFileAndthrowError_throw(STR_COULD_NOT_CREATE_INDEX_KEYSIZE,sFile);
}
m_pFileStream->SetStreamSize(PAGE_SIZE);
ByteString aCol(aName,m_pTable->getConnection()->getTextEncoding());
strncpy(m_aHeader.db_name,aCol.GetBuffer(),std::min((sal_uInt16)sizeof(m_aHeader.db_name), aCol.Len()));
m_aHeader.db_unique = m_IsUnique ? 1: 0;
m_aHeader.db_keyrec = m_aHeader.db_keylen + 8;
// modifications of the header are detected by differences between
// the HeaderInfo and nRootPage or nPageCount respectively
m_nRootPage = 1;
m_nPageCount = 2;
m_aCurLeaf = m_aRoot = CreatePage(m_nRootPage);
m_aRoot->SetModified(sal_True);
m_bUseCollector = sal_True;
sal_Int32 nRowsLeft = 0;
Reference<XRow> xRow(xSet,UNO_QUERY);
if(xSet->last())
{
Reference< XUnoTunnel> xTunnel(xSet,UNO_QUERY);
ODbaseResultSet* pDbaseRes = NULL;
if(xTunnel.is())
pDbaseRes = reinterpret_cast< ODbaseResultSet* >( xTunnel->getSomething(ODbaseResultSet::getUnoTunnelImplementationId()) );
OSL_ENSURE(pDbaseRes,"No dbase resultset found? What's going on here!");
Reference<XRowLocate> xRowLocate(xSet,UNO_QUERY);
nRowsLeft = xSet->getRow();
xSet->beforeFirst();
ORowSetValue atmpValue=ORowSetValue();
ONDXKey aKey(atmpValue, nType, 0);
ONDXKey aInsertKey(atmpValue, nType, 0);
// Create the index structure
while (xSet->next())
{
ORowSetValue aValue(m_aHeader.db_keytype ? ORowSetValue(xRow->getDouble(1)) : ORowSetValue(xRow->getString(1)));
// checking for duplicate entries
if (m_IsUnique && m_nCurNode != NODE_NOTFOUND)
{
aKey.setValue(aValue);
if (aKey == (*m_aCurLeaf)[m_nCurNode].GetKey())
{
impl_killFileAndthrowError_throw(STR_COULD_NOT_CREATE_INDEX_NOT_UNIQUE,sFile);
}
}
aInsertKey.setValue(aValue);
aInsertKey.setRecord(pDbaseRes->getCurrentFilePos());
ONDXNode aNewNode(aInsertKey);
if (!m_aCurLeaf->Insert(aNewNode, --nRowsLeft))
break;
}
}
if(nRowsLeft)
{
impl_killFileAndthrowError_throw(STR_COULD_NOT_CREATE_INDEX,sFile);
}
Release();
createINFEntry();
return sal_True;
}
// -----------------------------------------------------------------------------
// -----------------------------------------------------------------------------
void SAL_CALL ODbaseIndex::acquire() throw()
{
ODbaseIndex_BASE::acquire();
}
// -----------------------------------------------------------------------------
void SAL_CALL ODbaseIndex::release() throw()
{
ODbaseIndex_BASE::release();
}
// -----------------------------------------------------------------------------
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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