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///////////////////////////////////////////////////////////////////////////////
//
// This file defines the configuration property owner class.
//
///////////////////////////////////////////////////////////////////////////////


#ifndef Pegasus_ConfigPropertyOwner_h
#define Pegasus_ConfigPropertyOwner_h

#include <Pegasus/Common/ArrayInternal.h>
#include <Pegasus/Common/String.h>
#include <Pegasus/Common/Config.h>
#include <Pegasus/Config/ConfigExceptions.h>
#include <Pegasus/Config/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

///////////////////////////////////////////////////////////////////////////////
//  ConfigPropertyOwner Class
///////////////////////////////////////////////////////////////////////////////

/**
    This is an abstract class that the individual config property
    owners will extend and provide implementation.
*/
class PEGASUS_CONFIG_LINKAGE ConfigPropertyOwner
{
public:

    /** Constructors  */
    ConfigPropertyOwner() { }

    /** Destructor  */
    virtual ~ConfigPropertyOwner() { }

    /**
        Initialize the config properties.

        This method is expected to be called only once at the start of the
        CIMOM. It initializes the properties with the default values.
    */
    virtual void initialize() = 0;

    /**
        Get information about the specified property.

        @param name The name of the property.
        @param propertyInfo List to store the property info.
        @exception UnrecognizedConfigProperty  if the property is not defined.
    */
    virtual void getPropertyInfo(const String& name,
                         Array<String>& propertyInfo) const = 0;

    /**
        Get default value of the specified property.

        @param name The name of the property.
        @return string containing the default value of the property specified.
        @exception UnrecognizedConfigProperty if the property is not defined.
    */
    virtual String getDefaultValue(const String& name) const = 0;

    /**
        Get current value of the specified property.

        @param name The name of the property.
        @return string containing the current value of the property specified.
        @exception UnrecognizedConfigProperty  if the property is not defined.
    */
    virtual String getCurrentValue(const String& name) const = 0;

    /**
        Get planned value of the specified property.

        @param name The name of the property.
        @return string containing the planned value of the property specified.
        @exception UnrecognizedConfigProperty if the property is not defined.
    */
    virtual String getPlannedValue(const String& name) const = 0;

    /**
        Init current value of the specified property to the specified value.
        This method is expected to be called only once at the start of the
        CIMOM. The property value will be initialized irrespective of whether
        the property is dynamic or not.

        @param name The name of the property.
        @param value The current value of the property.
        @exception UnrecognizedConfigProperty if the property is not defined.
        @exception InvalidPropertyValue if the property value is not valid.
    */
    virtual void initCurrentValue(const String& name, const String& value) = 0;

    /**
        Init planned value of the specified property to the specified value.
        This method is expected to be called only once at the start of the
        CIMOM. The property value will be initialized irrespective of whether
        the property is dynamic or not.

        @param name The name of the property.
        @param value The planned value of the property.
        @exception UnrecognizedConfigProperty  if the property is not defined.
        @exception InvalidPropertyValue  if the property value is not valid.
    */
    virtual void initPlannedValue(const String& name, const String& value) = 0;

    /**
        Update current value of the specified property to the specified value.
        The property value will be updated only if the property is dynamically
        updatable.

        @param name The name of the property.
        @param value The current value of the property.
        @exception NonDynamicConfigProperty if the property is not dynamic.
        @exception InvalidPropertyValue if the property value is not valid.
        @exception UnrecognizedConfigProperty if the property is not defined.
    */
    virtual void updateCurrentValue(
        const String& name,
        const String& value) = 0;
        //throw (NonDynamicConfigProperty, InvalidPropertyValue,
        //    UnrecognizedConfigProperty) = 0;

    /**
        Update planned value of the specified property to the specified value.

        @param name The name of the property.
        @param value The planned value of the property.
        @exception InvalidPropertyValue  if the property value is not valid.
        @exception UnrecognizedConfigProperty  if the property is not defined.
    */
    virtual void updatePlannedValue(
        const String& name,
        const String& value) = 0;

    /**
        Checks to see if the given value is valid or not.

        @param name The name of the property.
        @param value The value of the property to be validated.
        @return true if the specified value for the property is valid.
        @exception UnrecognizedConfigProperty if the property is not defined.
    */
    virtual Boolean isValid(const String& name, const String& value) const = 0;

    /**
        Checks to see if the specified property is dynamic or not.

        @param name The name of the property.
        @return true if the specified property is dynamic.
        @exception UnrecognizedConfigProperty if the property is not defined.
    */
    virtual Boolean isDynamic(const String& name) const = 0;
};


///////////////////////////////////////////////////////////////////////////////
//  ConfigProperty
///////////////////////////////////////////////////////////////////////////////
/**
    The ConfigProperty struct used for defining the config properties.

    This structure is used by property owners that implement the
    ConfigPropertyOwner interface. Each config property they own will have
    their attributes defined in a structure of the type ConfigProperty.
    The structure members are initialized using the values defined in
    ConfigPropertyRow or by the set methods.
*/
///////////////////////////////////////////////////////////////////////////////

enum ConfigDynamic
{
    IS_DYNAMIC = 1,
    IS_STATIC = 0
};

enum ConfigVisible
{
    IS_VISIBLE =1,
    IS_HIDDEN = 0
};

struct ConfigProperty
{
    String propertyName;    // Name of a config property
    String defaultValue;    // Default value of a config property
    String currentValue;    // Current value of a config property
    String plannedValue;    // Planned of a config property
    ConfigDynamic dynamic;  // Dynamic or non dynamic property
    char** domain;          // List of valid values of a config property
    Uint32 domainSize;      // Size of the domain
    // Determines whether a property wants to be externally visible or not.
    // If a property chooses not to be externally visible, it is not listed
    // as a configurable property but is still configurable.
    ConfigVisible externallyVisible;
};

///////////////////////////////////////////////////////////////////////////////
/**
    The ConfigPropertyRow used for uniformly defining the values of
    the properties.

    This structure is intended to be used by property owners that implement
    the ConfigPropertyOwner interface. Using this structure they can define
    the in memory default values for each attributes of the properties
    that they own.
*/
///////////////////////////////////////////////////////////////////////////////

struct ConfigPropertyRow
{
    const char* propertyName;
    const char* defaultValue;
    ConfigDynamic dynamic;
    char** domain;
    Uint32 domainSize;
    ConfigVisible externallyVisible;
};

///////////////////////////////////////////////////////////////////////////////
/**
    Definition of commonly used constant string literals
*/
///////////////////////////////////////////////////////////////////////////////

PEGASUS_CONFIG_LINKAGE extern const char* STRING_TRUE;
PEGASUS_CONFIG_LINKAGE extern const char* STRING_FALSE;

PEGASUS_NAMESPACE_END

#endif /* Pegasus_ConfigPropertyOwner_h */