ixmlparser.c

brew 平台xml解析

#include "iXmlParser.h"
#include "AEEStdLib.h"

/*----------------------------------------------------------------
函数
------------------------------------------------------------------*/


//以下两个用于环境调用
int IXmlParser_New(int16 nSize, IShell *pIShell, IModule* pIModule,IModule ** ppMod); 

//以下具体实现
static uint32 IXmlParser_AddRef(IXmlParser* pMe);
static uint32 IXmlParser_Release(IXmlParser* pMe);


static boolean IXmlParser_ParseXml(IXmlParser * pMe, const char * xml);
static McbXMLElement* IXmlParser_GetRootElement(IXmlParser * pMe);
static McbXMLResults IXmlParser_GetResults(IXmlParser * pMe);
static void	IXmlParser_Reset(IXmlParser * pMe);

/*-----------------------------------------------------------------------------------------
实现
------------------------------------------------------------------------------------------*/

int IXmlParser_New(int16 nSize, IShell *pIShell, IModule* pIModule,IModule ** ppMod)
{
	//声明扩展类的结构和虚表
	IXmlParser*            pMe = NULL;
	VTBL(IXmlParser) *     modFuncs;

	//要求传入Mod/Shell
	if( !ppMod || !pIShell || !pIModule )
		return EFAILED;

	*ppMod = NULL;

	// 分配扩展类的内存
	if( nSize < sizeof(IXmlParser) )
		nSize += sizeof(IXmlParser);

	if( (pMe = (IXmlParser*)MALLOC(nSize +sizeof(VTBL(IXmlParser)))) == NULL )
		return ENOMEMORY; 

	modFuncs = (VTBL(IXmlParser)*)((byte *)pMe + nSize);

	//初始化虚表
	modFuncs->AddRef				= IXmlParser_AddRef;
	modFuncs->Release				= IXmlParser_Release;

	modFuncs->ParseXml				= IXmlParser_ParseXml;
	modFuncs->GetRootElement		= IXmlParser_GetRootElement;
	modFuncs->GetResults			= IXmlParser_GetResults;
	modFuncs->Reset					= IXmlParser_Reset;


	INIT_VTBL(pMe, IModule, *modFuncs);

	//初始基本数据
	pMe->m_nRefs			= 1;
	pMe->m_pIShell		= pIShell;
	pMe->m_pIModule		= pIModule;


	pMe->m_pRoot		= NULL;
	ZEROAT(&pMe->m_Results);


	//获取系统控件
	ISHELL_AddRef(pIShell);
	IMODULE_AddRef(pIModule);
   

	//当前模块
	*ppMod = (IModule*)pMe;

	return AEE_SUCCESS;
}

/*-------------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------------*/
static uint32 IXmlParser_AddRef(IXmlParser* pMe)
{
	return ++(pMe->m_nRefs);
}
static uint32 IXmlParser_Release(IXmlParser* pMe)
{
	if( --pMe->m_nRefs != 0 )
      return pMe->m_nRefs;

   //如果已经没有引用了
   ISHELL_Release(pMe->m_pIShell);
   IMODULE_Release(pMe->m_pIModule);

   //释放资源
   IXmlParser_Reset(pMe);
   
   //释放自己
   FREE_VTBL(pMe, IModule);
   FREE( pMe );
   return 0;
}

/*-----------------------------------------------------------------------------------------------------------

------------------------------------------------------------------------------------------------------------*/
static boolean IXmlParser_ParseXml(IXmlParser * pMe, const char * xml)
{
	pMe->m_pRoot = McbParseXML(xml,&pMe->m_Results);

	//debug
	{
		char * str;
		McbAddAttribute(pMe->m_pRoot->pEntries[0].node.pElement,"with","sharetop",0);
		str = McbCreateXMLString(pMe->m_pRoot,0,0);
		DBGPRINTF("--%s",str);
		FREEIF(str);
	}

	if( pMe->m_Results.error==eXMLErrorNone && pMe->m_pRoot && pMe->m_pRoot->nSize>0)
		return TRUE;
	else
		return FALSE;
}
static McbXMLElement* IXmlParser_GetRootElement(IXmlParser * pMe)
{
	return pMe->m_pRoot;
}
static McbXMLResults IXmlParser_GetResults(IXmlParser * pMe)
{
	return pMe->m_Results;
}
static void IXmlParser_Reset(IXmlParser * pMe)
{
	if(pMe->m_pRoot)
	{
		McbDeleteRoot(pMe->m_pRoot);
		pMe->m_pRoot=NULL;
	}
}