cimoperationrequestdispatcher.h

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

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#ifndef PegasusDispatcher_Dispatcher_h
#define PegasusDispatcher_Dispatcher_h

#include <Pegasus/Common/Config.h>
#include <Pegasus/Common/Thread.h>
#include <Pegasus/Common/MessageQueue.h>
#include <Pegasus/Common/CIMMessage.h>
#include <Pegasus/Common/CIMObject.h>
#include <Pegasus/Common/OperationContextInternal.h>
#include <Pegasus/Common/QueryExpressionRep.h>
#include <Pegasus/Common/AutoPtr.h>

#include <Pegasus/Repository/CIMRepository.h>

#include <Pegasus/Server/CIMServer.h>
#include \
    <Pegasus/Server/ProviderRegistrationManager/ProviderRegistrationManager.h>
#include <Pegasus/Server/Linkage.h>

#include <Pegasus/Common/QueryExpressionRep.h>

PEGASUS_NAMESPACE_BEGIN

// Class to aggregate and manage the information about classes and providers
// this simply masks some of the confusion of control providers, etc. today.

class PEGASUS_SERVER_LINKAGE ProviderInfo
{
public:
    ProviderInfo(const CIMName& className)
        : className(className),
          hasProvider(false),
          hasProviderNormalization(false),
          hasNoQuery(true)
    {
    }

    ProviderInfo(
        const CIMName& className,
        const String& serviceName,
        const String& controlProviderName)
        : className(className),
          serviceName(serviceName),
          controlProviderName(controlProviderName),
          hasProvider(false),
          hasProviderNormalization(false),
          hasNoQuery(true)
    {
    }

    ProviderInfo(const ProviderInfo& providerInfo)
        : className(providerInfo.className),
          serviceName(providerInfo.serviceName),
          controlProviderName(providerInfo.controlProviderName),
          hasProvider(providerInfo.hasProvider),
          hasProviderNormalization(false),
          hasNoQuery(providerInfo.hasNoQuery)
    {
        if (providerInfo.providerIdContainer.get() != 0)
        {
            providerIdContainer.reset(
                new ProviderIdContainer(*providerInfo.providerIdContainer));
        }
    }

    ProviderInfo& operator=(const ProviderInfo& providerInfo)
    {
        if (&providerInfo != this)
        {
            className = providerInfo.className;
            serviceName = providerInfo.serviceName;
            controlProviderName = providerInfo.controlProviderName;
            hasProvider = providerInfo.hasProvider;
            hasProviderNormalization = providerInfo.hasProviderNormalization;
            hasNoQuery = providerInfo.hasNoQuery;

            providerIdContainer.reset();

            if (providerInfo.providerIdContainer.get() != 0)
            {
                providerIdContainer.reset(new ProviderIdContainer(
                    *providerInfo.providerIdContainer.get()));
            }
        }

        return *this;
    }

    CIMName className;
    String serviceName;
    String controlProviderName;
    Boolean hasProvider;
    Boolean hasProviderNormalization;
    Boolean hasNoQuery;
    AutoPtr<ProviderIdContainer> providerIdContainer;

private:
    ProviderInfo()
    {
    }
};

/* Class to manage the aggregation of data required by post processors. This
    class is private to the dispatcher. An instance is created by the operation
    dispatcher to aggregate request and response information and used by the
    post processor to aggregate responses together.
*/
class PEGASUS_SERVER_LINKAGE OperationAggregate
{
    friend class CIMOperationRequestDispatcher;
public:
    /** Operation Aggregate constructor.  Builds an aggregate
        object.
        @param request
        @param msgRequestType
        @param messageId
        @param dest
        @param className
    */
    OperationAggregate(CIMRequestMessage* request,
        Uint32 msgRequestType,
        String messageId,
        Uint32 dest,
        CIMName className,
        CIMNamespaceName nameSpace = CIMNamespaceName(),
        QueryExpressionRep* query = 0,
        String queryLanguage = String::EMPTY);

    virtual ~OperationAggregate();

    // Tests validity by checking the magic number we put into the
    // packet.

    Boolean valid() const;

    // Sets the total issued to the input parameter

    void setTotalIssued(Uint32 i);

    // Append a new entry to the response list.  Return value indicates
    // whether this response is the last one expected

    Boolean appendResponse(CIMResponseMessage* response);

    Uint32 numberResponses() const;

    CIMRequestMessage* getRequest();

    CIMResponseMessage* getResponse(const Uint32& pos);

    // allow dispatcher to remove the response so it doesn't become
    // destroyed when the poA is destroyed.

    CIMResponseMessage* removeResponse(const Uint32& pos);

    void deleteResponse(const Uint32&pos);

    Uint32 getRequestType() const;

    void resequenceResponse(CIMResponseMessage& response);

    String _messageId;
    Uint32 _msgRequestType;
    Uint32 _dest;
    CIMNamespaceName _nameSpace;
    CIMName _className;
    Array<String> propertyList;
    Uint64 _aggregationSN;
    QueryExpressionRep* _query;
    String _queryLanguage;

private:
    /** Hidden (unimplemented) copy constructor */
    OperationAggregate(const OperationAggregate& x);

    Array<CIMResponseMessage*> _responseList;
    Mutex _appendResponseMutex;
    Mutex _enqueueResponseMutex;
    CIMRequestMessage* _request;
    Uint32 _totalIssued;
    Uint32 _magicNumber;
    Uint32 _totalReceived;
    Uint32 _totalReceivedComplete;
    Uint32 _totalReceivedExpected;
    Uint32 _totalReceivedErrors;
    Uint32 _totalReceivedNotSupported;
};

class PEGASUS_SERVER_LINKAGE CIMOperationRequestDispatcher :
    public MessageQueueService
{
    friend class QuerySupportRouter;
public:

    typedef MessageQueueService Base;

    CIMOperationRequestDispatcher(
        CIMRepository* repository,
        ProviderRegistrationManager* providerRegistrationManager);

    virtual ~CIMOperationRequestDispatcher();

    virtual void handleEnqueue(Message*);

    virtual void handleEnqueue();

    void handleGetClassRequest(
        CIMGetClassRequestMessage* request);

    void handleGetInstanceRequest(
        CIMGetInstanceRequestMessage* request);

    void handleDeleteClassRequest(
        CIMDeleteClassRequestMessage* request);

    void handleDeleteInstanceRequest(
        CIMDeleteInstanceRequestMessage* request);

    void handleCreateClassRequest(
        CIMCreateClassRequestMessage* request);

    void handleCreateInstanceRequest(