greenplumn CParseHandlerStatsBound 源码
greenplumn CParseHandlerStatsBound 代码
文件路径:/src/backend/gporca/libnaucrates/src/parser/CParseHandlerStatsBound.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CParseHandlerStatsBound.cpp
//
// @doc:
//
// Implementation of the SAX parse handler class for parsing
// the bounds of the bucket
//---------------------------------------------------------------------------
#include "naucrates/dxl/parser/CParseHandlerStatsBound.h"
#include "naucrates/dxl/operators/CDXLOperatorFactory.h"
#include "naucrates/dxl/parser/CParseHandlerFactory.h"
#include "naucrates/dxl/parser/CParseHandlerManager.h"
using namespace gpdxl;
XERCES_CPP_NAMESPACE_USE
//---------------------------------------------------------------------------
// @function:
// CParseHandlerStatsBound::CParseHandlerStatsBound
//
// @doc:
// Ctor
//
//---------------------------------------------------------------------------
CParseHandlerStatsBound::CParseHandlerStatsBound(
CMemoryPool *mp, CParseHandlerManager *parse_handler_mgr,
CParseHandlerBase *parse_handler_root)
: CParseHandlerBase(mp, parse_handler_mgr, parse_handler_root),
m_dxl_datum(nullptr),
m_is_stats_bound_closed(false)
{
}
//---------------------------------------------------------------------------
// @function:
// CParseHandlerStatsBound::~CParseHandlerStatsBound
//
// @doc:
// Dtor
//
//---------------------------------------------------------------------------
CParseHandlerStatsBound::~CParseHandlerStatsBound()
{
m_dxl_datum->Release();
}
//---------------------------------------------------------------------------
// @function:
// CParseHandlerStatsBound::StartElement
//
// @doc:
// Invoked by Xerces to process an opening tag
//
//---------------------------------------------------------------------------
void
CParseHandlerStatsBound::StartElement(const XMLCh *const, // element_uri,
const XMLCh *const element_local_name,
const XMLCh *const, // element_qname,
const Attributes &attrs)
{
if (0 == XMLString::compareString(
CDXLTokens::XmlstrToken(EdxltokenStatsBucketLowerBound),
element_local_name) ||
0 == XMLString::compareString(
CDXLTokens::XmlstrToken(EdxltokenStatsBucketUpperBound),
element_local_name))
{
GPOS_ASSERT(nullptr == m_dxl_datum);
// translate the datum and add it to the datum array
CDXLDatum *dxl_datum = CDXLOperatorFactory::GetDatumVal(
m_parse_handler_mgr->GetDXLMemoryManager(), attrs, EdxltokenDatum);
m_dxl_datum = dxl_datum;
if (0 == XMLString::compareString(
CDXLTokens::XmlstrToken(EdxltokenStatsBucketLowerBound),
element_local_name))
{
m_is_stats_bound_closed =
CDXLOperatorFactory::ExtractConvertAttrValueToBool(
m_parse_handler_mgr->GetDXLMemoryManager(), attrs,
EdxltokenStatsBoundClosed, EdxltokenStatsBucketLowerBound);
}
else
{
m_is_stats_bound_closed =
CDXLOperatorFactory::ExtractConvertAttrValueToBool(
m_parse_handler_mgr->GetDXLMemoryManager(), attrs,
EdxltokenStatsBoundClosed, EdxltokenStatsBucketUpperBound);
}
}
else
{
CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(
m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag,
str->GetBuffer());
}
}
//---------------------------------------------------------------------------
// @function:
// CParseHandlerStatsBound::EndElement
//
// @doc:
// Invoked by Xerces to process a closing tag
//
//---------------------------------------------------------------------------
void
CParseHandlerStatsBound::EndElement(const XMLCh *const, // element_uri,
const XMLCh *const element_local_name,
const XMLCh *const // element_qname
)
{
if (0 != XMLString::compareString(
CDXLTokens::XmlstrToken(EdxltokenStatsBucketLowerBound),
element_local_name) &&
0 != XMLString::compareString(
CDXLTokens::XmlstrToken(EdxltokenStatsBucketUpperBound),
element_local_name))
{
CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(
m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag,
str->GetBuffer());
}
GPOS_ASSERT(nullptr != m_dxl_datum);
// deactivate handler
m_parse_handler_mgr->DeactivateHandler();
}
// EOF
相关信息
相关文章
greenplumn CParseHandlerAgg 源码
greenplumn CParseHandlerAppend 源码
greenplumn CParseHandlerArray 源码
greenplumn CParseHandlerAssert 源码
greenplumn CParseHandlerBase 源码
greenplumn CParseHandlerBroadcastMotion 源码
greenplumn CParseHandlerCTEConfig 源码
greenplumn CParseHandlerCTEList 源码
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
5、 golang
-
8、 openharmony