objectnormalizer.cpp

Pegasus is an open-source implementationof the DMTF CIM and WBEM standards. It is designed to be por

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// Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
// Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
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// Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
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// Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
// EMC Corporation; VERITAS Software Corporation; The Open Group.
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#include <Pegasus/Common/ObjectNormalizer.h>
#include <Pegasus/Common/ArrayInternal.h>

PEGASUS_NAMESPACE_BEGIN

CIMQualifier _processQualifier(
    CIMConstQualifier& referenceQualifier,
    CIMConstQualifier& cimQualifier)
{
    // check name
    if (!referenceQualifier.getName().equal(cimQualifier.getName()))
    {
        MessageLoaderParms message(
            "Common.ObjectNormalizer.INVALID_QUALIFIER_NAME",
            "Invalid qualifier name: $0",
            cimQualifier.getName().getString());

        throw CIMException(CIM_ERR_FAILED, message);
    }

    // check type
    if (referenceQualifier.getType() != cimQualifier.getType())
    {
        MessageLoaderParms message(
            "Common.ObjectNormalizer.INVALID_QUALIFIER_TYPE",
            "Invalid qualifier type: $0",
            cimQualifier.getName().getString());

        throw CIMException(CIM_ERR_FAILED, message);
    }

    CIMQualifier normalizedQualifier(
        referenceQualifier.getName(),
        referenceQualifier.getValue(),  // default value
        referenceQualifier.getFlavor(),
        referenceQualifier.getPropagated() == 0 ? false : true);

    // TODO: check override

    // update value
    if (!cimQualifier.getValue().isNull())
    {
        normalizedQualifier.setValue(cimQualifier.getValue());
    }

    return normalizedQualifier;
}

CIMProperty ObjectNormalizer::_processProperty(
    CIMConstProperty& referenceProperty,
    CIMConstProperty& instProperty,
    Boolean includeQualifiers,
    Boolean includeClassOrigin,
    NormalizerContext* context,
    const CIMNamespaceName& nameSpace)
{
    // check name
    if (!referenceProperty.getName().equal(instProperty.getName()))
    {
        MessageLoaderParms message(
            "Common.ObjectNormalizer.INVALID_PROPERTY_NAME",
            "Invalid property name: $0",
            instProperty.getName().getString());

        throw CIMException(CIM_ERR_FAILED, message);
    }

    // check type
    CIMType referencePropType = referenceProperty.getType();
    CIMType instPropType = instProperty.getType();
    if (referencePropType != instPropType)
    {
#ifdef PEGASUS_EMBEDDED_INSTANCE_SUPPORT
        // CMPI Providers cannot return a CIMTYPE_INSTANCE, so if the
        // referenceProperty type is CIMTYPE_INSTANCE and the instProperty
        // type is CIMTYPE_OBJECT, ignore the mismatch. The Normalizer
        // will correct it.
        if (referencePropType != CIMTYPE_INSTANCE ||
            instPropType != CIMTYPE_OBJECT)
#endif // PEGASUS_EMBEDDED_INSTANCE_SUPPORT
        {
            MessageLoaderParms message(
                "Common.ObjectNormalizer.INVALID_PROPERTY_TYPE",
                "Invalid property type: $0",
                instProperty.getName().getString());

            throw CIMException(CIM_ERR_FAILED, message);
        }
    }

    // TODO: check array size?

    CIMProperty normalizedProperty(
        referenceProperty.getName(),
        referenceProperty.getValue(),   // default value
        referenceProperty.getArraySize(),
        referenceProperty.getReferenceClassName(),
        CIMName(),
        false);

    // TODO: check override (especially for references)?

    // update value
    if (!instProperty.getValue().isNull())
    {
#ifdef PEGASUS_EMBEDDED_INSTANCE_SUPPORT
        // This happens ONLY when the referencePropType is CIMTYPE_INSTANCE
        // and the cimPropType is CIMTYPE_OBJECT, otherwise an exception
        // would have been thrown. Correct the mismatch here.
        if (referencePropType != instPropType)
        {
            CIMObject tmpObject;
            instProperty.getValue().get(tmpObject);
            normalizedProperty.setValue(CIMInstance(tmpObject));
        }
        else
#endif // PEGASUS_EMBEDDED_INSTANCE_SUPPORT
        {
            normalizedProperty.setValue(instProperty.getValue());
        }
    }

    // update class origin
    if (includeClassOrigin)
    {
        normalizedProperty.setClassOrigin(referenceProperty.getClassOrigin());
    }

    // add qualifiers
    if (includeQualifiers)
    {
        // propagate class property qualifiers
        for (Uint32 i=0, n = referenceProperty.getQualifierCount(); i < n; i++)
        {
            CIMConstQualifier referenceQualifier =
                referenceProperty.getQualifier(i);

            Uint32 pos =
                instProperty.findQualifier(referenceQualifier.getName());

            // update value if qualifier is present in the specified property
            if (pos != PEG_NOT_FOUND)
            {
                CIMConstQualifier cimQualifier = instProperty.getQualifier(pos);

                CIMQualifier normalizedQualifier =
                    _processQualifier(
                        referenceQualifier,
                        cimQualifier);

                normalizedProperty.addQualifier(normalizedQualifier);
            }
            else
            {
                normalizedProperty.addQualifier(referenceQualifier.clone());
            }
        }
    }
#ifdef PEGASUS_EMBEDDED_INSTANCE_SUPPORT
#ifdef PEGASUS_SNIA_INTEROP_COMPATIBILITY
    else if (referenceProperty.getType() == CIMTYPE_INSTANCE)
    {
        Uin32 refPos = referenceProperty.findQualifier("EmbeddedInstance");
        Uin32 cimPos = instProperty.findQualifier("EmbeddedInstance");
        if (refPos != PEG_NOT_FOUND && cimPos == PEG_NOT_FOUND)
        {
            instProperty.addQualifier(refProperty.getQualifier(pos));
        }
    }
#endif

    // Check the type of the embedded instance against the class specified by
    // the EmbeddedInstance qualifier. We can only do this if the context
    // is non-zero.
    if (context != 0)
    {
        if (referenceProperty.getType() == CIMTYPE_INSTANCE)
        {
            Uint32 pos = referenceProperty.findQualifier("EmbeddedInstance");

            PEGASUS_ASSERT(pos != PEG_NOT_FOUND);

            String qualClassStr;
            referenceProperty.getQualifier(pos).getValue().get(
                qualClassStr);
            CIMName embedInstClassName(qualClassStr);
            Array<CIMName> embeddedInstSubclasses =
                context->enumerateClassNames(nameSpace, embedInstClassName,
                    true);
            embeddedInstSubclasses.append(embedInstClassName);

            Array<CIMInstance> embeddedInstances;
            if (referenceProperty.isArray())
            {
                instProperty.getValue().get(embeddedInstances);
            }
            else
            {
                CIMInstance embeddedInst;
                instProperty.getValue().get(embeddedInst);
                embeddedInstances.append(embeddedInst);
            }

            Array<CIMClass> embeddedClassDefs;
            for (Uint32 i = 0, n = embeddedInstances.size(); i < n; ++i)
            {
                CIMInstance& currentInstance = embeddedInstances[i];
                CIMName currentClassName = currentInstance.getClassName();
                if (Contains(embeddedInstSubclasses, currentClassName))
                {
                    CIMClass embeddedClassDef;
                    bool found = false;
                    for (Uint32 j = 0, m = embeddedClassDefs.size(); j < m;
                        ++j)
                    {
                        CIMClass& tmpClassDef = embeddedClassDefs[j];
                        if (tmpClassDef.getClassName() == currentClassName)
                        {
                            embeddedClassDef = tmpClassDef;
                            found = true;
                        }
                    }

                    if (!found)
                    {
                        embeddedClassDef = context->getClass(nameSpace,
                            currentClassName);
                        embeddedClassDefs.append(embeddedClassDef);
                    }

                    AutoPtr<NormalizerContext> tmpContext(
                        context->clone().release());
                    ObjectNormalizer tmpNormalizer(embeddedClassDef,
                        includeQualifiers, includeClassOrigin, nameSpace,
                        tmpContext);
                    if (currentInstance.getPath().getKeyBindings().size()==0)
                    {
                        currentInstance.setPath(
                            currentInstance.buildPath(embeddedClassDef));
                    }
                    embeddedInstances[i] =
                        tmpNormalizer.processInstance(currentInstance);
                }
                else
                {
                    MessageLoaderParms message(
                        "Common.ObjectNormalizer."
                            "INVALID_EMBEDDED_INSTANCE_TYPE",
                        "Found embedded instance of type $0: was expecting "
                            "$1 for property $2",
                        currentClassName.getString(),
                        qualClassStr,
                        instProperty.getName().getString());

                    throw CIMException(CIM_ERR_FAILED, message);
                }
            }

            if (referenceProperty.isArray())
            {
              normalizedProperty.setValue(CIMValue(embeddedInstances));
            }
            else
            {
              normalizedProperty.setValue(CIMValue(embeddedInstances[0]));
            }
        }
    }
#endif // PEGASUS_EMBEDDED_INSTANCE_SUPPORT

    return normalizedProperty;
}

ObjectNormalizer::ObjectNormalizer()
    : _includeQualifiers(false),
    _includeClassOrigin(false),
    _context(0)