windows-nt/Source/XPSP1/NT/net/wlbs/wmi/wlbs_root.cpp
2020-09-26 16:20:57 +08:00

528 lines
13 KiB
C++

#include "WLBS_Provider.h"
#include "WLBS_Root.h"
#include "utils.h"
#include "controlwrapper.h"
#include "param.h"
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::CWlbs_Root
//
// Purpose: Constructor
//
////////////////////////////////////////////////////////////////////////////////
CWlbs_Root::CWlbs_Root(CWbemServices* a_pNameSpace,
IWbemObjectSink* a_pResponseHandler)
: m_pNameSpace(NULL), m_pResponseHandler(NULL)
{
//m_pNameSpace and m_pResponseHandler are initialized to NULL
//by CWlbs_Root
if(!a_pNameSpace || !a_pResponseHandler)
throw _com_error( WBEM_E_INVALID_PARAMETER );
m_pNameSpace = a_pNameSpace;
m_pResponseHandler = a_pResponseHandler;
m_pResponseHandler->AddRef();
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::~CWlbs_Root
//
// Purpose: Destructor
//
////////////////////////////////////////////////////////////////////////////////
CWlbs_Root::~CWlbs_Root()
{
if( m_pNameSpace )
m_pNameSpace = NULL;
if( m_pResponseHandler ) {
m_pResponseHandler->Release();
m_pResponseHandler = NULL;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::SpawnInstance
//
// Purpose: This obtains an instance of a WBEM class.
//
////////////////////////////////////////////////////////////////////////////////
void CWlbs_Root::SpawnInstance
(
LPCWSTR a_szClassName,
IWbemClassObject** a_ppWbemInstance
)
{
HRESULT hResult;
IWbemClassObjectPtr pWlbsClass;
//get the MOF class object
hResult = m_pNameSpace->GetObject(
_bstr_t( a_szClassName ),
0,
NULL,
&pWlbsClass,
NULL);
if( FAILED(hResult) ) {
throw _com_error(hResult);
}
//spawn an instance
hResult = pWlbsClass->SpawnInstance( 0, a_ppWbemInstance );
if( FAILED( hResult ) )
throw _com_error( hResult );
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::GetMethodOutputInstance
//
// Purpose: This obtains an IWbemClassObject that is used to store the
// output parameters for a method call. The caller is responsible for
// releasing the output object.
//
////////////////////////////////////////////////////////////////////////////////
void CWlbs_Root::GetMethodOutputInstance
(
LPCWSTR a_szMethodClass,
const BSTR a_strMethodName,
IWbemClassObject** a_ppOutputInstance
)
{
IWbemClassObjectPtr pMethClass;
IWbemClassObjectPtr pOutputClass;
IWbemClassObjectPtr pOutParams;
BSTR strMethodClass = NULL;
HRESULT hResult;
ASSERT( a_szMethodClass );
try {
strMethodClass = SysAllocString( a_szMethodClass );
if( !strMethodClass )
throw _com_error( WBEM_E_OUT_OF_MEMORY );
hResult = m_pNameSpace->GetObject
( strMethodClass,
0,
NULL,
&pMethClass,
NULL
);
if( FAILED( hResult ) )
throw _com_error( hResult );
hResult = pMethClass->GetMethod( a_strMethodName, 0, NULL, &pOutputClass );
if( FAILED( hResult ) )
throw _com_error( hResult );
hResult = pOutputClass->SpawnInstance( 0, a_ppOutputInstance );
if( FAILED( hResult ) ) {
throw _com_error(hResult);
}
if( strMethodClass ) {
SysFreeString( strMethodClass );
strMethodClass = NULL;
}
}
catch(...) {
if( strMethodClass ) {
SysFreeString( strMethodClass );
strMethodClass = NULL;
}
throw;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::UpdateConfigProp
//
// Purpose: This extracts the propery name and value from the WBEM object and if
// the property is not set to VT_NULL then the configuration is updated
// else the original configuration, the Src parameter, is used.
//
////////////////////////////////////////////////////////////////////////////////
void CWlbs_Root::UpdateConfigProp
(
wstring& a_szDest,
const wstring& a_szSrc,
LPCWSTR a_szPropName,
IWbemClassObject* a_pNodeInstance
)
{
HRESULT hRes = NULL;
VARIANT vNewValue;
try {
VariantInit( &vNewValue );
hRes = a_pNodeInstance->Get( _bstr_t( a_szPropName ),
0,
&vNewValue,
NULL,
NULL );
if( FAILED( hRes ) )
throw _com_error( hRes );
if( vNewValue.vt != VT_NULL )
a_szDest.assign( vNewValue.bstrVal ); //update to new value
else
a_szDest = a_szSrc; //keep original value
// CLD: Need to check return code for error
if (S_OK != VariantClear( &vNewValue ))
throw _com_error( WBEM_E_FAILED );
}
catch(...) {
// CLD: Need to check return code for error
// No throw here since we are already throwing an exception.
VariantClear( &vNewValue );
throw;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::UpdateConfigProp
//
// Purpose: This extracts the propery name and value from the WBEM object and if
// the property is not set to VT_NULL then the configuration is updated
// else the original configuration, the Src parameter, is used.
//
////////////////////////////////////////////////////////////////////////////////
void CWlbs_Root::UpdateConfigProp
(
bool& a_bDest,
bool a_bSrc,
LPCWSTR a_szPropName,
IWbemClassObject* a_pNodeInstance
)
{
BSTR strPropName = NULL;
HRESULT hRes = NULL;
VARIANT vNewValue;
try {
VariantInit( &vNewValue );
hRes = a_pNodeInstance->Get
(
_bstr_t( a_szPropName ),
0,
&vNewValue,
NULL,
NULL
);
if( FAILED( hRes ) )
throw _com_error( hRes );
if( vNewValue.vt != VT_NULL )
a_bDest = (vNewValue.boolVal != 0); //update to new value
else
a_bDest = a_bSrc; //keep original value
// CLD: Need to check return code for error
if (S_OK != VariantClear( &vNewValue ))
throw _com_error( WBEM_E_FAILED );
SysFreeString( strPropName );
}
catch(...) {
// CLD: Need to check return code for error
// No throw here since we are already throwing an exception.
VariantClear( &vNewValue );
throw;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::UpdateConfigProp
//
// Purpose: This extracts the propery name and value from the WBEM object and if
// the property is not set to VT_NULL then the configuration is updated
// else the original configuration, the Src parameter, is used.
//
////////////////////////////////////////////////////////////////////////////////
void CWlbs_Root::UpdateConfigProp
(
DWORD& a_dwDest,
DWORD a_dwSrc,
LPCWSTR a_szPropName,
IWbemClassObject* a_pNodeInstance
)
{
HRESULT hRes = NULL;
VARIANT vNewValue;
try {
VariantInit( &vNewValue );
hRes = a_pNodeInstance->Get( _bstr_t( a_szPropName ),
0,
&vNewValue,
NULL,
NULL );
if( FAILED( hRes ) )
throw _com_error( hRes );
if( vNewValue.vt != VT_NULL )
a_dwDest = vNewValue.lVal;
else
a_dwDest = a_dwSrc;
// CLD: Need to check return code for error
if (S_OK != VariantClear( &vNewValue ))
throw _com_error( WBEM_E_FAILED );
}
catch(...) {
// CLD: Need to check return code for error
// No throw here since we are already throwing an exception.
VariantClear( &vNewValue );
throw;
}
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::CreateExtendedStatus
//
// Purpose: Spawn and fill a Wbem extended status object with error
// information.
//
////////////////////////////////////////////////////////////////////////////////
void CWlbs_Root::CreateExtendedStatus
(
CWbemServices* a_pNameSpace,
IWbemClassObject** a_ppWbemInstance,
DWORD a_dwErrorCode,
LPCWSTR /*a_szDescription*/
)
{
HRESULT hResult;
IWbemClassObjectPtr pWlbsExtendedObject;
try {
ASSERT(a_ppWbemInstance);
ASSERT(a_pNameSpace );
//this is the only routine that references
//the MicrosoftNLB_ExtendedStatus object
//if other routines start to use the class,
//or if it adds additional properties, then
//is should be added to the MOF data files
//along with the other classes
//get the MOF class object
hResult = a_pNameSpace->GetObject(
_bstr_t( L"MicrosoftNLB_ExtendedStatus" ),
0,
NULL,
&pWlbsExtendedObject,
NULL);
if( FAILED(hResult) ) {
throw _com_error(hResult);
}
//spawn an instance
hResult = pWlbsExtendedObject->SpawnInstance( 0, a_ppWbemInstance );
if( FAILED( hResult ) )
throw _com_error( hResult );
//this is omitted in release due to internationalization concerns
/*
#if 0
//fill instance with data
//add description
hResult = (*a_ppWbemInstance)->Put
(
_bstr_t( L"Description" ) ,
0 ,
&( _variant_t( a_szDescription ) ) ,
NULL
);
#endif
*/
if( FAILED( hResult ) )
throw _com_error( hResult );
//add status code
hResult = (*a_ppWbemInstance)->Put
(
_bstr_t( L"StatusCode" ) ,
0 ,
&( _variant_t( (long)a_dwErrorCode ) ) ,
NULL
);
if( FAILED( hResult ) )
throw _com_error( hResult );
}
catch(...) {
if( *a_ppWbemInstance )
(*a_ppWbemInstance)->Release();
throw;
}
}
//+----------------------------------------------------------------------------
//
// Function: CWlbs_Root::ExtractHostID
//
// Description: Extract the Host ID from name "clusterIp:HostId"
//
// Arguments: const wstring& a_wstrName -
//
//
// Returns: DWORD - Host ID, or -1 if failed
//
// History: fengsun Created Header 7/13/00
//
//+----------------------------------------------------------------------------
DWORD CWlbs_Root::ExtractHostID(const wstring& a_wstrName)
{
long nColPos;
nColPos = a_wstrName.find( L":" );
if (nColPos == wstring::npos)
{
//
// Not found
//
TRACE_ERROR1("CWlbs_Root::ExtractHostID invalid name %ws", a_wstrName.c_str());
return (DWORD)-1;
}
wstring wstrHostID = a_wstrName.substr( nColPos+1, a_wstrName.size()-1 );
return _wtol( wstrHostID.c_str() );
}
//+----------------------------------------------------------------------------
//
// Function: CWlbs_Root::ExtractClusterIP
//
// Description: Extract the cluster IP address from name "clusterIp:HostId"
//
// Arguments: const wstring& a_wstrName -
//
//
// Returns: DWORD - Cluster IP, or INADDR_NONE (-1) if falied
//
// History: fengsun Created Header 7/13/00
//
//+----------------------------------------------------------------------------
DWORD CWlbs_Root::ExtractClusterIP(const wstring& a_wstrName)
{
long nColPos;
nColPos = a_wstrName.find( L":" );
if (nColPos == wstring::npos)
{
//
// Not found
//
TRACE_ERROR1("CWlbs_Root::ExtractClusterIP invalid name %ws", a_wstrName.c_str());
return (DWORD)-1;
}
wstring wstrClusterIP = a_wstrName.substr( 0, nColPos );
return WlbsResolve( wstrClusterIP.c_str() );
}
////////////////////////////////////////////////////////////////////////////////
//
// CWlbs_Root::ConstructHostName
//
// Purpose:
//
////////////////////////////////////////////////////////////////////////////////
void CWlbs_Root::ConstructHostName
(
wstring& a_wstrHostName,
DWORD a_dwClusIP,
DWORD a_dwHostID
)
{
WCHAR wszHostID[40];
AddressToString( a_dwClusIP, a_wstrHostName );
a_wstrHostName += L':';
a_wstrHostName += _ltow( a_dwHostID, wszHostID, 10 );
}
CWlbsClusterWrapper* GetClusterFromHostName(CWlbsControlWrapper* pControl,
wstring wstrHostName)
{
DWORD dwClusterIpOrIndex = CWlbs_Root::ExtractClusterIP(wstrHostName);
return pControl->GetClusterFromIpOrIndex(dwClusterIpOrIndex);
}