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795 lines
19 KiB
795 lines
19 KiB
//***************************************************************************
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//
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// Copyright (c) 1998-2000 Microsoft Corporation
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//
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// PROPERTY.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 ISWbemProperty
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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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// CSWbemProperty::CSWbemProperty
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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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CSWbemProperty::CSWbemProperty(
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CSWbemServices *pService,
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ISWbemInternalObject *pSWbemObject,
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BSTR name)
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{
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m_Dispatch.SetObj (this, IID_ISWbemProperty,
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CLSID_SWbemProperty, L"SWbemProperty");
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m_cRef=1;
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m_pSWbemObject = pSWbemObject;
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m_pSWbemObject->AddRef ();
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m_pSWbemObject->GetIWbemClassObject (&m_pIWbemClassObject);
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m_pSite = new CWbemObjectSite (m_pSWbemObject);
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m_pSWbemServices = pService;
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if (m_pSWbemServices)
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m_pSWbemServices->AddRef ();
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m_name = SysAllocString (name);
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InterlockedIncrement(&g_cObj);
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}
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//***************************************************************************
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//
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// CSWbemProperty::~CSWbemProperty
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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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CSWbemProperty::~CSWbemProperty(void)
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{
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InterlockedDecrement(&g_cObj);
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if (m_pSWbemObject)
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m_pSWbemObject->Release ();
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if (m_pIWbemClassObject)
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m_pIWbemClassObject->Release ();
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if (m_pSWbemServices)
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m_pSWbemServices->Release ();
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if (m_pSite)
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m_pSite->Release ();
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SysFreeString (m_name);
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}
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//***************************************************************************
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// HRESULT CSWbemProperty::QueryInterface
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// long CSWbemProperty::AddRef
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// long CSWbemProperty::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 CSWbemProperty::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_ISWbemProperty==riid)
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*ppv = (ISWbemProperty *)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) CSWbemProperty::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) CSWbemProperty::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 CSWbemProperty::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 CSWbemProperty::InterfaceSupportsErrorInfo (IN REFIID riid)
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{
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return (IID_ISWbemProperty == riid) ? S_OK : S_FALSE;
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}
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//***************************************************************************
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//
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// SCODE CSWbemProperty::get_Value
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//
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// DESCRIPTION:
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//
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// Retrieve the property value
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//
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// PARAMETERS:
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//
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// pValue holds the value on return
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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 CSWbemProperty::get_Value (
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VARIANT *pValue
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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 == pValue)
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hr = WBEM_E_INVALID_PARAMETER;
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else
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{
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VariantClear (pValue);
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if (m_pIWbemClassObject)
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{
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VARIANT var;
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VariantInit (&var);
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if (WBEM_S_NO_ERROR == (hr = m_pIWbemClassObject->Get
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(m_name, 0, &var, NULL, NULL)))
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{
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MapFromCIMOMObject(m_pSWbemServices, &var,
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m_pSWbemObject, m_name);
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if(var.vt & VT_ARRAY)
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{
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hr = ConvertArrayRev(pValue, &var);
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}
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else
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{
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hr = VariantCopy (pValue, &var);
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}
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VariantClear(&var);
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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 CSWbemProperty::put_Value
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//
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// DESCRIPTION:
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//
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// Set the property value
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//
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// PARAMETERS:
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//
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// pVal the new value
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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 CSWbemProperty::put_Value (
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VARIANT *pVal
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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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/*
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* We can only _change_ the value, not the type. When dealing with
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* CIMOM interfaces 2 golden rules must be obeyed.
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* (1) For instance-level Put's, you can specify the CIMTYPE (provided
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* you get it right), but can also specify 0.
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* (2) For class-level Put's, always specify the CIMTYPE
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*/
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if (m_pIWbemClassObject)
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{
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CIMTYPE cimType = CIM_EMPTY;
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if (SUCCEEDED(hr = m_pIWbemClassObject->Get (m_name, 0, NULL, &cimType, NULL)))
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{
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VARIANT vWMI;
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VariantInit (&vWMI);
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if (SUCCEEDED(hr = WmiVariantChangeType(vWMI, pVal, cimType)))
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hr = m_pIWbemClassObject->Put (m_name, 0, &vWMI, cimType);
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VariantClear (&vWMI);
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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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// Did we save an embedded object value? If so make sure the
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// site is correctly set to this property.
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SetSite (pVal, m_pSWbemObject, m_name);
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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 CSWbemProperty::get_Name
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//
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// DESCRIPTION:
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//
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// Retrieve the property name
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//
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// PARAMETERS:
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//
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// pName holds the name on return
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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 CSWbemProperty::get_Name (
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BSTR *pName
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)
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{
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HRESULT hr = WBEM_S_NO_ERROR;
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ResetLastErrors ();
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if (NULL == pName)
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hr = WBEM_E_INVALID_PARAMETER;
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else
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*pName = SysAllocString (m_name);
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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 CSWbemProperty::get_CIMType
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//
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// DESCRIPTION:
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//
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// Retrieve the property base CIM type (i.e. without the array type)
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//
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// PARAMETERS:
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//
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// pType holds the type on return
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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 CSWbemProperty::get_CIMType (
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WbemCimtypeEnum *pType
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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 == pType)
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return WBEM_E_INVALID_PARAMETER;
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if (m_pIWbemClassObject)
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{
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CIMTYPE cimType;
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hr = m_pIWbemClassObject->Get (m_name, 0, NULL, &cimType, NULL);
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*pType = (WbemCimtypeEnum)(cimType & ~CIM_FLAG_ARRAY);
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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 CSWbemProperty::get_IsArray
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//
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// DESCRIPTION:
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//
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// Retrieve whether the property is an array type
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//
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// PARAMETERS:
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//
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// pIsArray holds the value on return
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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 CSWbemProperty::get_IsArray (
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VARIANT_BOOL *pIsArray
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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 == pIsArray)
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return WBEM_E_INVALID_PARAMETER;
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*pIsArray = FALSE;
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if (m_pIWbemClassObject)
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{
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CIMTYPE cimType = CIM_EMPTY;
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hr = m_pIWbemClassObject->Get (m_name, 0, NULL, &cimType, NULL);
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*pIsArray = (0 != (cimType & CIM_FLAG_ARRAY))
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? VARIANT_TRUE : VARIANT_FALSE;
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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 CSWbemProperty::get_IsLocal
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//
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// DESCRIPTION:
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//
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// Retrieve the property flavor
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//
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// PARAMETERS:
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//
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// pFlavor holds the flavor on return
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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 CSWbemProperty::get_IsLocal (
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VARIANT_BOOL *pValue
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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 == pValue)
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hr = WBEM_E_INVALID_PARAMETER;
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else
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{
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long flavor = 0;
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if (m_pIWbemClassObject)
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{
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if (WBEM_S_NO_ERROR == (hr = m_pIWbemClassObject->Get (m_name, 0, NULL, NULL, &flavor)))
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*pValue = (WBEM_FLAVOR_ORIGIN_LOCAL == (flavor & WBEM_FLAVOR_MASK_ORIGIN)) ?
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VARIANT_TRUE : VARIANT_FALSE;
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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 CSWbemProperty::get_Origin
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//
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// DESCRIPTION:
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//
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// Retrieve the property origin
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//
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// PARAMETERS:
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//
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// pOrigin holds the origin class on return
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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 CSWbemProperty::get_Origin (
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BSTR *pOrigin
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)
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{
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HRESULT hr = WBEM_S_NO_ERROR;
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ResetLastErrors ();
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if (NULL == pOrigin)
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hr = WBEM_E_INVALID_PARAMETER;
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else
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{
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if (m_pIWbemClassObject)
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m_pIWbemClassObject->GetPropertyOrigin (m_name, pOrigin);
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if (NULL == *pOrigin)
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*pOrigin = SysAllocString (OLESTR(""));
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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 CSWbemProperty::get_Qualifiers_
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//
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// DESCRIPTION:
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//
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// Retrieve the property qualifier set
|
|
//
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// PARAMETERS:
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//
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// ppQualSet addresses the qualifier set on return
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//
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// RETURN VALUES:
|
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//
|
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// WBEM_S_NO_ERROR success
|
|
// WBEM_E_INVALID_PARAMETER bad input parameters
|
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// WBEM_E_FAILED otherwise
|
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//
|
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//***************************************************************************
|
|
|
|
HRESULT CSWbemProperty::get_Qualifiers_ (
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ISWbemQualifierSet **ppQualSet
|
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)
|
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{
|
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HRESULT hr = WBEM_E_FAILED;
|
|
|
|
ResetLastErrors ();
|
|
|
|
if (NULL == ppQualSet)
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hr = WBEM_E_INVALID_PARAMETER;
|
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else
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{
|
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*ppQualSet = NULL;
|
|
|
|
if (m_pIWbemClassObject)
|
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{
|
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IWbemQualifierSet *pQualSet = NULL;
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|
|
|
if (WBEM_S_NO_ERROR == (hr = m_pIWbemClassObject->GetPropertyQualifierSet
|
|
(m_name, &pQualSet)))
|
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{
|
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if (!(*ppQualSet = new CSWbemQualifierSet (pQualSet, m_pSWbemObject)))
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hr = WBEM_E_OUT_OF_MEMORY;
|
|
|
|
pQualSet->Release ();
|
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}
|
|
}
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
m_Dispatch.RaiseException (hr);
|
|
|
|
return hr;
|
|
}
|
|
|
|
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CSWbemProperty::UpdateEmbedded
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Given a variant representing an embedded value, set the value
|
|
// and update the parent object.
|
|
//
|
|
// PARAMETERS:
|
|
//
|
|
// var embedded value (VT_UNKNOWN)
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//
|
|
// RETURN VALUES:
|
|
//
|
|
// WBEM_S_NO_ERROR success
|
|
// WBEM_E_INVALID_PARAMETER bad input parameters
|
|
// WBEM_E_FAILED otherwise
|
|
//
|
|
//***************************************************************************
|
|
|
|
void CSWbemProperty::UpdateEmbedded (VARIANT &vNewVal, long index)
|
|
{
|
|
if (m_pIWbemClassObject)
|
|
{
|
|
CIMTYPE cimType = CIM_EMPTY;
|
|
|
|
if (-1 == index)
|
|
{
|
|
m_pIWbemClassObject->Get (m_name, 0, NULL, &cimType, NULL);
|
|
m_pIWbemClassObject->Put (m_name, 0, &vNewVal, cimType);
|
|
}
|
|
else
|
|
{
|
|
VARIANT vPropVal;
|
|
VariantInit(&vPropVal);
|
|
|
|
if (SUCCEEDED (m_pIWbemClassObject->Get (m_name, 0, &vPropVal, &cimType, NULL))
|
|
&& ((VT_UNKNOWN|VT_ARRAY) == V_VT(&vPropVal)))
|
|
{
|
|
|
|
// Set the value into the relevant index of the property value array
|
|
if (S_OK == SafeArrayPutElement (vPropVal.parray, &index, V_UNKNOWN(&vNewVal)))
|
|
{
|
|
// Set the entire property value
|
|
m_pIWbemClassObject->Put (m_name, 0, &vPropVal, cimType);
|
|
}
|
|
}
|
|
|
|
VariantClear (&vPropVal);
|
|
}
|
|
}
|
|
}
|
|
|
|
void CSWbemProperty::UpdateSite ()
|
|
{
|
|
// Update the parent site if it exists
|
|
if (m_pSite)
|
|
m_pSite->Update ();
|
|
}
|
|
|
|
|
|
//***************************************************************************
|
|
//
|
|
// SCODE CSWbemProperty::CPropertyDispatchHelp::HandleError
|
|
//
|
|
// DESCRIPTION:
|
|
//
|
|
// Provide bespoke handling of error conditions in the bolierplate
|
|
// Dispatch implementation.
|
|
//
|
|
// PARAMETERS:
|
|
//
|
|
// dispidMember, wFlags,
|
|
// pdispparams, pvarResult,
|
|
// puArgErr, All passed directly from IDispatch::Invoke
|
|
// hr The return code from the bolierplate invoke
|
|
//
|
|
// RETURN VALUES:
|
|
// The new return code (to be ultimately returned from Invoke)
|
|
//
|
|
// WBEM_S_NO_ERROR success
|
|
// WBEM_E_INVALID_PARAMETER bad input parameters
|
|
// WBEM_E_FAILED otherwise
|
|
//
|
|
//***************************************************************************
|
|
|
|
HRESULT CSWbemProperty::CPropertyDispatchHelp::HandleError (
|
|
DISPID dispidMember,
|
|
unsigned short wFlags,
|
|
DISPPARAMS FAR* pdispparams,
|
|
VARIANT FAR* pvarResult,
|
|
UINT FAR* puArgErr,
|
|
HRESULT hr
|
|
)
|
|
{
|
|
if ((DISPID_VALUE == dispidMember) && (DISP_E_NOTACOLLECTION == hr) && (pdispparams->cArgs > 0))
|
|
{
|
|
/*
|
|
* We are looking for calls on the default member (the Value property) which
|
|
* supplied an argument. Since the Value property is of type VARIANT, this may
|
|
* be legal but undetectable by the standard Dispatch mechanism, because in the
|
|
* the case that the property happens to be an array type, it is meaningful to
|
|
* pass an index (the interpretation is that the index specifies an offset in
|
|
* the VT_ARRAY|VT_VARIANT structure that represents the property value).
|
|
*/
|
|
|
|
WbemCimtypeEnum cimtype;
|
|
VARIANT_BOOL isArray = FALSE;
|
|
ISWbemProperty *pProperty = NULL;
|
|
|
|
// This tells use where to expect the array index to appear in the argument list
|
|
UINT indexArg = (DISPATCH_PROPERTYGET & wFlags) ? 0 : 1;
|
|
|
|
if (SUCCEEDED (m_pObj->QueryInterface (IID_ISWbemProperty, (PPVOID) &pProperty)))
|
|
{
|
|
if (SUCCEEDED(pProperty->get_CIMType (&cimtype)) &&
|
|
SUCCEEDED(pProperty->get_IsArray (&isArray)) && (isArray))
|
|
{
|
|
// Extract the current property value
|
|
VARIANT vPropVal;
|
|
VariantInit(&vPropVal);
|
|
|
|
if (SUCCEEDED (pProperty->get_Value (&vPropVal)) && V_ISARRAY(&vPropVal))
|
|
{
|
|
VARIANT indexVar;
|
|
VariantInit (&indexVar);
|
|
|
|
// Attempt to coerce the index argument into a value suitable for an array index
|
|
if (S_OK == VariantChangeType (&indexVar, &pdispparams->rgvarg[indexArg], 0, VT_I4))
|
|
{
|
|
long lArrayPropInx = V_I4(&indexVar);
|
|
|
|
// Is this a Get? There should be one argument (the array index)
|
|
if (DISPATCH_PROPERTYGET & wFlags)
|
|
{
|
|
if (1 == pdispparams->cArgs)
|
|
{
|
|
// We should have a VT_ARRAY|VT_VARIANT value at this point; extract the
|
|
// VARIANT element we require
|
|
|
|
VariantInit (pvarResult);
|
|
hr = SafeArrayGetElement (vPropVal.parray, &lArrayPropInx, pvarResult);
|
|
}
|
|
else
|
|
hr = DISP_E_BADPARAMCOUNT;
|
|
}
|
|
else if (DISPATCH_PROPERTYPUT & wFlags)
|
|
{
|
|
if (2 == pdispparams->cArgs)
|
|
{
|
|
/*
|
|
* Try to interpret this as an array member set operation. For
|
|
* this the first argument passed is the new value, and the second
|
|
* is the array index.
|
|
*/
|
|
|
|
VARIANT vNewVal;
|
|
VariantInit(&vNewVal);
|
|
|
|
if (SUCCEEDED(VariantCopy(&vNewVal, &pdispparams->rgvarg[0])))
|
|
{
|
|
// Coerce the value if necessary (unless it's embedded)
|
|
|
|
if ((wbemCimtypeObject == cimtype) ||
|
|
(S_OK == VariantChangeType (&vNewVal, &vNewVal, 0, CimTypeToVtType (cimtype))))
|
|
{
|
|
// Check the index is not out of bounds and, if it is, grow
|
|
// the array accordingly
|
|
CheckArrayBounds (vPropVal.parray, lArrayPropInx);
|
|
|
|
// Set the value into the relevant index of the property value array
|
|
if (S_OK == (hr =
|
|
SafeArrayPutElement (vPropVal.parray, &lArrayPropInx, &vNewVal)))
|
|
{
|
|
// Set the entire property value
|
|
if (SUCCEEDED (pProperty->put_Value (&vPropVal)))
|
|
{
|
|
hr = S_OK;
|
|
// Upcast is OK here because m_pObj is really a (CSWbemProperty*)
|
|
CSWbemProperty *pSProperty = (CSWbemProperty *)m_pObj;
|
|
|
|
// Did we save an embedded object value? If so make sure the
|
|
// site is correctly set to this property.
|
|
SetSite (&pdispparams->rgvarg[0],
|
|
pSProperty->m_pSWbemObject, pSProperty->m_name,
|
|
lArrayPropInx);
|
|
|
|
// Propagate the change to the owning site
|
|
pSProperty->UpdateSite ();
|
|
}
|
|
else
|
|
{
|
|
hr = DISP_E_TYPEMISMATCH;
|
|
if (puArgErr)
|
|
*puArgErr = 0;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = DISP_E_TYPEMISMATCH;
|
|
if (puArgErr)
|
|
*puArgErr = 0;
|
|
}
|
|
|
|
VariantClear (&vNewVal);
|
|
}
|
|
}
|
|
else
|
|
hr = DISP_E_BADPARAMCOUNT;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
hr = DISP_E_TYPEMISMATCH;
|
|
if (puArgErr)
|
|
*puArgErr = indexArg;
|
|
}
|
|
|
|
VariantClear (&indexVar);
|
|
}
|
|
|
|
VariantClear (&vPropVal);
|
|
}
|
|
|
|
pProperty->Release ();
|
|
}
|
|
}
|
|
|
|
return hr;
|
|
}
|
|
|