greenplumn CParseHandlerCtasStorageOptions 源码

greenplumn CParseHandlerCtasStorageOptions 代码

文件路径：/src/backend/gporca/libnaucrates/src/parser/CParseHandlerCtasStorageOptions.cpp

//---------------------------------------------------------------------------
//	Greenplum Database
//	Copyright (C) 2014 VMware, Inc. or its affiliates.
//
//	@filename:
//		CParseHandlerCtasStorageOptions.cpp
//
//	@doc:
//		Implementation of the SAX parse handler class for parsing CTAS storage
//		options
//---------------------------------------------------------------------------

#include "naucrates/dxl/parser/CParseHandlerCtasStorageOptions.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:
//		CParseHandlerCtasStorageOptions::CParseHandlerCtasStorageOptions
//
//	@doc:
//		Ctor
//
//---------------------------------------------------------------------------
CParseHandlerCtasStorageOptions::CParseHandlerCtasStorageOptions(
	CMemoryPool *mp, CParseHandlerManager *parse_handler_mgr,
	CParseHandlerBase *parse_handler_root)
	: CParseHandlerBase(mp, parse_handler_mgr, parse_handler_root),
	  m_mdname_tablespace(nullptr),
	  m_dxl_ctas_storage_option(nullptr),
	  m_ctas_storage_option_array(nullptr)
{
}

//---------------------------------------------------------------------------
//	@function:
//		CParseHandlerCtasStorageOptions::~CParseHandlerCtasStorageOptions
//
//	@doc:
//		Dtor
//
//---------------------------------------------------------------------------
CParseHandlerCtasStorageOptions::~CParseHandlerCtasStorageOptions()
{
	CRefCount::SafeRelease(m_dxl_ctas_storage_option);
}

//---------------------------------------------------------------------------
//	@function:
//		CParseHandlerCtasStorageOptions::StartElement
//
//	@doc:
//		Invoked by Xerces to process an opening tag
//
//---------------------------------------------------------------------------
void
CParseHandlerCtasStorageOptions::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(EdxltokenCTASOptions),
								 element_local_name))
	{
		const XMLCh *xml_str_tablespace =
			attrs.getValue(CDXLTokens::XmlstrToken(EdxltokenTablespace));
		if (nullptr != xml_str_tablespace)
		{
			m_mdname_tablespace = CDXLUtils::CreateMDNameFromXMLChar(
				m_parse_handler_mgr->GetDXLMemoryManager(), xml_str_tablespace);
		}

		m_ctas_on_commit_action =
			CDXLOperatorFactory::ParseOnCommitActionSpec(attrs);
	}
	else if (0 == XMLString::compareString(
					  CDXLTokens::XmlstrToken(EdxltokenCTASOption),
					  element_local_name))
	{
		// parse option name and m_bytearray_value
		ULONG ctas_option_type =
			CDXLOperatorFactory::ExtractConvertAttrValueToUlong(
				m_parse_handler_mgr->GetDXLMemoryManager(), attrs,
				EdxltokenCtasOptionType, EdxltokenCTASOption);
		CWStringBase *ctas_option_name =
			CDXLOperatorFactory::ExtractConvertAttrValueToStr(
				m_parse_handler_mgr->GetDXLMemoryManager(), attrs,
				EdxltokenName, EdxltokenCTASOption);
		CWStringBase *ctas_option_val =
			CDXLOperatorFactory::ExtractConvertAttrValueToStr(
				m_parse_handler_mgr->GetDXLMemoryManager(), attrs,
				EdxltokenValue, EdxltokenCTASOption);
		BOOL is_null = CDXLOperatorFactory::ExtractConvertAttrValueToBool(
			m_parse_handler_mgr->GetDXLMemoryManager(), attrs, EdxltokenIsNull,
			EdxltokenCTASOption);

		if (nullptr == m_ctas_storage_option_array)
		{
			m_ctas_storage_option_array = GPOS_NEW(m_mp)
				CDXLCtasStorageOptions::CDXLCtasOptionArray(m_mp);
		}
		m_ctas_storage_option_array->Append(
			GPOS_NEW(m_mp) CDXLCtasStorageOptions::CDXLCtasOption(
				ctas_option_type, ctas_option_name, ctas_option_val, is_null));
	}
	else
	{
		CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(
			m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
		GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag,
				   str->GetBuffer());
	}
}

//---------------------------------------------------------------------------
//	@function:
//		CParseHandlerCtasStorageOptions::EndElement
//
//	@doc:
//		Invoked by Xerces to process a closing tag
//
//---------------------------------------------------------------------------
void
CParseHandlerCtasStorageOptions::EndElement(
	const XMLCh *const,	 // element_uri,
	const XMLCh *const element_local_name,
	const XMLCh *const	// element_qname
)
{
	if (0 ==
		XMLString::compareString(CDXLTokens::XmlstrToken(EdxltokenCTASOptions),
								 element_local_name))
	{
		m_dxl_ctas_storage_option = GPOS_NEW(m_mp)
			CDXLCtasStorageOptions(m_mdname_tablespace, m_ctas_on_commit_action,
								   m_ctas_storage_option_array);
		// deactivate handler
		m_parse_handler_mgr->DeactivateHandler();
	}
	else if (0 != XMLString::compareString(
					  CDXLTokens::XmlstrToken(EdxltokenCTASOption),
					  element_local_name))
	{
		CWStringDynamic *str = CDXLUtils::CreateDynamicStringFromXMLChArray(
			m_parse_handler_mgr->GetDXLMemoryManager(), element_local_name);
		GPOS_RAISE(gpdxl::ExmaDXL, gpdxl::ExmiDXLUnexpectedTag,
				   str->GetBuffer());
	}
}

//---------------------------------------------------------------------------
//	@function:
//		CParseHandlerCtasStorageOptions::GetDxlCtasStorageOption
//
//	@doc:
//		Return parsed storage options
//
//---------------------------------------------------------------------------
CDXLCtasStorageOptions *
CParseHandlerCtasStorageOptions::GetDxlCtasStorageOption() const
{
	return m_dxl_ctas_storage_option;
}

// EOF

相关信息

greenplumn 源码目录

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

greenplumn CParseHandlerColDescr 源码

greenplumn CParseHandlerColStats 源码