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640 lines
15 KiB
640 lines
15 KiB
//***************************************************************************
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//
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// Copyright (c) 1998-1999 Microsoft Corporation
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//
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// QUALSET.CPP
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//
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// alanbos 15-Aug-96 Created.
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//
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// Defines the implementation of ISWbemQualifierSet
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//
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//***************************************************************************
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#include "precomp.h"
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//***************************************************************************
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//
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// CSWbemQualifierSet::CSWbemQualifierSet
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//
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// DESCRIPTION:
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//
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// Constructor.
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//
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//***************************************************************************
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CSWbemQualifierSet::CSWbemQualifierSet(IWbemQualifierSet *pQualSet,
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ISWbemInternalObject *pSWbemObject) :
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m_pSite (NULL)
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{
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m_Dispatch.SetObj (this, IID_ISWbemQualifierSet,
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CLSID_SWbemQualifierSet, L"SWbemQualifierSet");
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m_pIWbemQualifierSet = pQualSet;
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m_pIWbemQualifierSet->AddRef ();
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if (pSWbemObject)
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m_pSite = new CWbemObjectSite (pSWbemObject);
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m_cRef=1;
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InterlockedIncrement(&g_cObj);
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}
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//***************************************************************************
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//
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// CSWbemQualifierSet::~CSWbemQualifierSet
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//
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// DESCRIPTION:
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//
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// Destructor.
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//
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//***************************************************************************
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CSWbemQualifierSet::~CSWbemQualifierSet()
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{
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InterlockedDecrement(&g_cObj);
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if (m_pIWbemQualifierSet)
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{
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m_pIWbemQualifierSet->EndEnumeration ();
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m_pIWbemQualifierSet->Release ();
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}
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if (m_pSite)
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m_pSite->Release ();
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}
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//***************************************************************************
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// HRESULT CSWbemQualifierSet::QueryInterface
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// long CSWbemQualifierSet::AddRef
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// long CSWbemQualifierSet::Release
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//
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// DESCRIPTION:
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//
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// Standard Com IUNKNOWN functions.
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//
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//***************************************************************************
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STDMETHODIMP CSWbemQualifierSet::QueryInterface (
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IN REFIID riid,
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OUT LPVOID *ppv
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)
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{
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*ppv=NULL;
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if (IID_IUnknown==riid)
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*ppv = reinterpret_cast<IUnknown*>(this);
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else if (IID_ISWbemQualifierSet==riid)
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*ppv = (ISWbemQualifierSet *)this;
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else if (IID_IDispatch==riid)
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*ppv = (IDispatch *)this;
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else if (IID_ISupportErrorInfo==riid)
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*ppv = (ISupportErrorInfo *)this;
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else if (IID_IProvideClassInfo==riid)
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*ppv = (IProvideClassInfo *)this;
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if (NULL!=*ppv)
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{
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((LPUNKNOWN)*ppv)->AddRef();
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return NOERROR;
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}
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return ResultFromScode(E_NOINTERFACE);
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}
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STDMETHODIMP_(ULONG) CSWbemQualifierSet::AddRef(void)
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{
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InterlockedIncrement(&m_cRef);
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return m_cRef;
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}
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STDMETHODIMP_(ULONG) CSWbemQualifierSet::Release(void)
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{
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LONG cRef = InterlockedDecrement(&m_cRef);
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if (0 != cRef)
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{
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_ASSERT(cRef > 0);
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return cRef;
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}
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delete this;
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return 0;
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}
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//***************************************************************************
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// HRESULT CSWbemQualifierSet::InterfaceSupportsErrorInfo
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//
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// DESCRIPTION:
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//
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// Standard Com ISupportErrorInfo functions.
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//
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//***************************************************************************
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STDMETHODIMP CSWbemQualifierSet::InterfaceSupportsErrorInfo (IN REFIID riid)
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{
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return (IID_ISWbemQualifierSet == riid) ? S_OK : S_FALSE;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::Item
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//
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// DESCRIPTION:
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//
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// Get a qualifier
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//
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// PARAMETERS:
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//
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// bsName The name of the qualifier
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// lFlags Flags
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// ppQual On successful return addresses the ISWbemQualifier
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//
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// RETURN VALUES:
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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// Other WBEM error codes may be returned by ConnectServer etc., in which
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// case these are passed on to the caller.
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::Item (
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BSTR bsName,
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long lFlags,
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ISWbemQualifier ** ppQual
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)
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{
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HRESULT hr = WBEM_E_FAILED;
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ResetLastErrors ();
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if (NULL == ppQual)
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hr = WBEM_E_INVALID_PARAMETER;
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else if (m_pIWbemQualifierSet)
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{
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if (WBEM_S_NO_ERROR == (hr = m_pIWbemQualifierSet->Get (bsName, lFlags, NULL, NULL)))
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{
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if (!(*ppQual = new CSWbemQualifier (m_pIWbemQualifierSet, bsName, m_pSite)))
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::Add
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//
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// DESCRIPTION:
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//
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// Put a qualifier
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//
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// PARAMETERS:
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//
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// bsName The name of the qualifier
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// pVal Pointer to new value
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// flavor Flavor
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//
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// RETURN VALUES:
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::Add (
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BSTR bsName,
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VARIANT *pVal,
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VARIANT_BOOL propagatesToSubclasses,
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VARIANT_BOOL propagatesToInstances,
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VARIANT_BOOL overridable,
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long lFlags,
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ISWbemQualifier **ppQualifier
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)
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{
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HRESULT hr = WBEM_E_FAILED;
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ResetLastErrors ();
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if ((NULL == pVal) || (NULL == ppQualifier))
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hr = WBEM_E_INVALID_PARAMETER;
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else if (m_pIWbemQualifierSet)
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{
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long flavor = 0;
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if (propagatesToSubclasses)
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flavor |= WBEM_FLAVOR_FLAG_PROPAGATE_TO_DERIVED_CLASS;
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if (propagatesToInstances)
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flavor |= WBEM_FLAVOR_FLAG_PROPAGATE_TO_INSTANCE;
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if (!overridable)
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flavor |= WBEM_FLAVOR_NOT_OVERRIDABLE;
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// Make sure we have a decent qualifier value to use
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if(((VT_ARRAY | VT_VARIANT) == V_VT(pVal)) ||
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((VT_ARRAY | VT_VARIANT | VT_BYREF) == V_VT(pVal)))
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{
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VARIANT vTemp;
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VariantInit (&vTemp);
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if (S_OK == ConvertArray(&vTemp, pVal, TRUE))
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hr = m_pIWbemQualifierSet->Put (bsName, &vTemp, flavor);
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VariantClear(&vTemp);
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}
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else if ((VT_DISPATCH == V_VT(pVal)) || ((VT_DISPATCH|VT_BYREF) == V_VT(pVal)))
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{
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// Could be a JScript IDispatchEx array
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VARIANT vTemp;
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VariantInit (&vTemp);
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if (S_OK == ConvertDispatchToArray (&vTemp, pVal, CIM_ILLEGAL, true))
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hr = m_pIWbemQualifierSet->Put (bsName, &vTemp, flavor);
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VariantClear (&vTemp);
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}
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else
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{
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// Only certain types, I4, R8, BOOL and BSTR are acceptable qualifier
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// values. Convert the data if need be
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VARTYPE vtOK = GetAcceptableQualType(pVal->vt);
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if(vtOK != pVal->vt)
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{
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VARIANT vTemp;
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VariantInit(&vTemp);
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if (S_OK == QualifierVariantChangeType (&vTemp, pVal, vtOK))
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hr = m_pIWbemQualifierSet->Put (bsName, &vTemp, flavor);
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VariantClear(&vTemp);
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}
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else
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hr = m_pIWbemQualifierSet->Put (bsName, pVal, flavor);
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}
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if (SUCCEEDED (hr))
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{
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if (!(*ppQualifier = new CSWbemQualifier (m_pIWbemQualifierSet, bsName, m_pSite)))
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hr = WBEM_E_OUT_OF_MEMORY;
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}
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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else
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{
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// Propagate the change to the owning site
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if (m_pSite)
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m_pSite->Update ();
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}
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::Remove
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//
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// DESCRIPTION:
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//
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// Delete a qualifier
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//
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// PARAMETERS:
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//
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// bsName The name of the qualifier
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//
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// RETURN VALUES:
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::Remove (
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BSTR bsName,
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long lFlags
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)
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{
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HRESULT hr = WBEM_E_FAILED;
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ResetLastErrors ();
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if (m_pIWbemQualifierSet)
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hr = m_pIWbemQualifierSet->Delete (bsName);
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// Translate default reset case to an error
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if (WBEM_S_RESET_TO_DEFAULT == hr)
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hr = wbemErrResetToDefault;
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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if (SUCCEEDED(hr) || (wbemErrResetToDefault == hr))
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{
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// Propagate the change to the owning site
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if (m_pSite)
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m_pSite->Update ();
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}
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::BeginEnumeration
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//
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// DESCRIPTION:
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//
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// Begin an enumeration of the qualifiers
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//
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// RETURN VALUES:
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::BeginEnumeration (
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)
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{
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HRESULT hr = WBEM_E_FAILED;
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ResetLastErrors ();
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if (m_pIWbemQualifierSet)
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{
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hr = m_pIWbemQualifierSet->EndEnumeration ();
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hr = m_pIWbemQualifierSet->BeginEnumeration (0);
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::Next
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//
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// DESCRIPTION:
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//
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// Get next qualifier in enumeration
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//
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// PARAMETERS:
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//
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// lFlags Flags
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// ppQual Next qualifier (or NULL if end of enumeration)
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//
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// RETURN VALUES:
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::Next (
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long lFlags,
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ISWbemQualifier ** ppQual
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)
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{
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HRESULT hr = WBEM_E_FAILED;
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ResetLastErrors ();
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if (NULL == ppQual)
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hr = WBEM_E_INVALID_PARAMETER;
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else if (m_pIWbemQualifierSet)
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{
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BSTR name = NULL;
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if (WBEM_S_NO_ERROR == (hr = m_pIWbemQualifierSet->Next (lFlags, &name, NULL, NULL)))
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{
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if (!(*ppQual = new CSWbemQualifier (m_pIWbemQualifierSet, name, m_pSite)))
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hr = WBEM_E_OUT_OF_MEMORY;
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SysFreeString (name);
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}
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::get__NewEnum
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//
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// DESCRIPTION:
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//
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// Return an IEnumVARIANT-supporting interface for collections
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//
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// PARAMETERS:
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//
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// ppUnk on successful return addresses the IUnknown interface
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//
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// RETURN VALUES:
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//
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// S_OK success
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// E_FAIL otherwise
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::get__NewEnum (
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IUnknown **ppUnk
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)
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{
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HRESULT hr = E_FAIL;
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ResetLastErrors ();
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if (NULL != ppUnk)
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{
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*ppUnk = NULL;
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CQualSetEnumVar *pEnum = new CQualSetEnumVar (this);
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if (!pEnum)
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hr = WBEM_E_OUT_OF_MEMORY;
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else if (FAILED(hr = pEnum->QueryInterface (IID_IUnknown, (PPVOID) ppUnk)))
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delete pEnum;
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::get_Count
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//
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// DESCRIPTION:
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//
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// Return the number of items in the collection
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//
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// PARAMETERS:
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//
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// plCount on successful return addresses cardinality
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//
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// RETURN VALUES:
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//
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// S_OK success
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// E_FAIL otherwise
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::get_Count (
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long *plCount
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)
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{
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HRESULT hr = E_FAIL;
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ResetLastErrors ();
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if (NULL != plCount)
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{
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*plCount = 0;
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/*
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* This is not the most efficient way of obtaining the count,
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* but it is the only way that is:
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* (a) Supported by the underlying interface
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* (b) Does not require access to any other interface
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* (c) Does not affect the current enumeration position
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*/
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if (m_pIWbemQualifierSet)
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{
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SAFEARRAY *pArray = NULL;
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if (WBEM_S_NO_ERROR == m_pIWbemQualifierSet->GetNames (0, &pArray))
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{
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long lUBound = 0, lLBound = 0;
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SafeArrayGetUBound (pArray, 1, &lUBound);
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SafeArrayGetLBound (pArray, 1, &lLBound);
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*plCount = lUBound - lLBound + 1;
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SafeArrayDestroy (pArray);
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hr = S_OK;
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}
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}
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}
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if (FAILED(hr))
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m_Dispatch.RaiseException (hr);
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return hr;
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}
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//***************************************************************************
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//
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// SCODE CSWbemQualifierSet::CQualifierSetDispatchHelp::HandleError
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//
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// DESCRIPTION:
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//
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// Provide bespoke handling of error conditions in the bolierplate
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// Dispatch implementation.
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//
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// PARAMETERS:
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//
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// dispidMember, wFlags,
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// pdispparams, pvarResult,
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// puArgErr, All passed directly from IDispatch::Invoke
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// hr The return code from the bolierplate invoke
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//
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// RETURN VALUES:
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// The new return code (to be ultimately returned from Invoke)
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//
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// WBEM_S_NO_ERROR success
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// WBEM_E_INVALID_PARAMETER bad input parameters
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// WBEM_E_FAILED otherwise
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//
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//***************************************************************************
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HRESULT CSWbemQualifierSet::CQualifierSetDispatchHelp::HandleError (
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DISPID dispidMember,
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unsigned short wFlags,
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DISPPARAMS FAR* pdispparams,
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VARIANT FAR* pvarResult,
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UINT FAR* puArgErr,
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HRESULT hr
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)
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{
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/*
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* We are looking for calls on the default member (the Item method) which
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* are PUTs that supplied an argument. These are triggered by attempts
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* to set a value of a qualifier (Item) in the collection.
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* The first argument should be the new value for the item, and the second
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* argument should be the name of the item.
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*/
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if ((DISPID_VALUE == dispidMember) && (DISP_E_MEMBERNOTFOUND == hr) && (2 == pdispparams->cArgs)
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&& (DISPATCH_PROPERTYPUT == wFlags))
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{
|
|
// Looks promising - get the object to try and resolve this
|
|
ISWbemQualifierSet *pQualifierSet = NULL;
|
|
|
|
if (SUCCEEDED (m_pObj->QueryInterface (IID_ISWbemQualifierSet, (PPVOID) &pQualifierSet)))
|
|
{
|
|
VARIANT valueVar;
|
|
VariantInit (&valueVar);
|
|
|
|
if (SUCCEEDED(VariantCopy(&valueVar, &pdispparams->rgvarg[0])))
|
|
{
|
|
VARIANT nameVar;
|
|
VariantInit (&nameVar);
|
|
|
|
if (SUCCEEDED(VariantCopy(&nameVar, &pdispparams->rgvarg[1])))
|
|
{
|
|
// Check name is a BSTR and use it to get the item
|
|
if (VT_BSTR == V_VT(&nameVar))
|
|
{
|
|
ISWbemQualifier *pQualifier = NULL;
|
|
|
|
if (SUCCEEDED (pQualifierSet->Item (V_BSTR(&nameVar), 0, &pQualifier)))
|
|
{
|
|
// Try and put the value
|
|
if (SUCCEEDED (pQualifier->put_Value (&valueVar)))
|
|
hr = S_OK;
|
|
else
|
|
{
|
|
hr = DISP_E_TYPEMISMATCH;
|
|
if (puArgErr)
|
|
*puArgErr = 0;
|
|
}
|
|
|
|
pQualifier->Release ();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = DISP_E_TYPEMISMATCH;
|
|
if (puArgErr)
|
|
*puArgErr = 1;
|
|
}
|
|
|
|
VariantClear (&nameVar);
|
|
}
|
|
|
|
VariantClear (&valueVar);
|
|
}
|
|
|
|
pQualifierSet->Release ();
|
|
}
|
|
}
|
|
|
|
return hr;
|
|
}
|