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Diff for /pegasus/src/Pegasus/Common/CIMDateTime.h between version 1.18 and 1.50

version 1.18, 2002/05/01 06:21:21

version 1.50, 2006/01/30 16:16:46

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//%/////////////////////////////////////////////////////////////////////////////

//%2006////////////////////////////////////////////////////////////////////////

// Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.

// IBM Corp.; EMC Corporation, The Open Group.

// IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; VERITAS Software Corporation; The Open Group.

// EMC Corporation; Symantec Corporation; The Open Group.

// Permission is hereby granted, free of charge, to any person obtaining a copy

// of this software and associated documentation files (the "Software"), to

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//==============================================================================

// Author: Mike Brasher (mbrasher@bmc.com)

// Modified By: Karl Schopmeyer(k.schopmeyer@opengroup.org)

// Sushma Fernandes, Hewlett Packard Company

// (sushma_fernandes@hp.com)

// Roger Kumpf, Hewlett Packard Company (roger_kumpf@hp.com)

//%/////////////////////////////////////////////////////////////////////////////

#ifndef Pegasus_DateTime_h

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#include <Pegasus/Common/Config.h>

#include <Pegasus/Common/Array.h>

#ifdef PEGASUS_INTERNALONLY

#include <Pegasus/Common/Linkage.h>

#include <iostream>

#endif

PEGASUS_NAMESPACE_BEGIN

/* ATTN: P3. KS Several functions should be added to this class for datetime manipulation

class CIMDateTimeRep;

including get and set each subcomponent (year, month, etc), test for equality,

create intervals from absolutes, possibly gett current time, Note that

the Java rep is probably tostring, not get string,

/**

The CIMDateTime class represents the CIM datetime data type as a C++ class

CIMDateTime. A CIM datetime may contain a date or an interval. CIMDateTime

CIMDateTime. A CIM datetime may contain a time stamp or an interval.

is an intrinsic CIM data type which represents the time as a formated

CIMDateTime is an intrinsic CIM data type that represents the time as a

fixedplength string.

string with a fixed length.

<PRE>

A date has the following form:

A time stamp has the following form:

yyyymmddhhmmss.mmmmmmsutc

Where

yyyy = year (0-1999)

yyyy = year (1-9999)

mm = month (1-12)

dd = day (1-31)

hh = hour (0-23)

mm = minute (0-59)

ss = second (0-59)

mmmmmm = microseconds.

mmmmmm = microseconds

s = '+' or '-' to represent the UTC sign.

s = '+' or '-' to represent the Coordinated Universal Time (UTC) sign

utc = UTC offset (same as GMT offset).

utc = offset from Coordinated Universal Time (UTC)

(same as Greenwich Mean Time(GMT) offset)

An interval has the following form:

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mmmmmm = microseconds

</PRE>

Note that intervals always end in ":000" (this is how they

Note: Intervals always end in ":000". This distinguishes intervals from

are distinguished from dates).

time stamps.

Intervals are really durations since they do not specify a start and

CIMDateTime objects are constructed from String objects or from

end time (as one expects when speaking about an interval). It is

other CIMDateTime objects. Character strings must be exactly

better to think of an interval as specifying time elapsed since

twenty-five characters in length and conform to either the time stamp

some event.

or interval format.

CIMDateTime objects are constructed from C character strings or from

other CIMDateTime objects. These character strings must be exactly

twenty-five characters and conform to one of the forms idententified

above.

CIMDateTime objects which are not explicitly initialized will be

CIMDateTime objects that are not explicitly initialized will be

implicitly initialized with the null time interval:

implicitly initialized with a zero time interval:

00000000000000.000000:000

Instances can be tested for nullness with the isNull() method.

The following table shows what arithmetic operations are allowed

between CIMDateTime types. The entries in the last four columns define

the type of the result when the operation, specified in the column header,

is performed on operands, of the types specified in the first two columns.

<PRE>

LHS - left hand side TS - time stamp int - integer

RHS - right hand side IV - interval

X - operation not allowed between types

LHS RHS + - * /

_____________________________________________

TS TS X IV X X

TS IV TS TS X X

TS int X X X X

IV IV IV IV X int

IV TS X X X X

IV int X X IV IV

int TS X X X X

int IV X X X X

</PRE>

The relational operators may only operate on two operands of the same type,

i.e. two time stamps or two intervals.

class PEGASUS_COMMON_LINKAGE CIMDateTime

{

public:

/** Create a new CIMDateTime object with NULL DateTime definition.

/** Creates a new CIMDateTime object with a zero interval value.

CIMDateTime();

/** CIMDateTime - Creat a CIM CIMDateTime instance from a string

/** Creates a new CIMDateTime object from a string constant representing

constant representing the CIM DateTime formatted datetime

the CIM DateTime formatted datetime.

See the class documentation for CIMDateTime for the defintion of the

See the class documentation for CIMDateTime for the definition of the

input string for absolute and interval datetime.

@param str String object containing the CIM DateTime formatted string

@param str String object containing the CIMDateTime formatted string.

This must contain twenty-five characters.

@exception InvalidDateTimeFormatException If the input string is not

formatted correctly.

CIMDateTime(const char* str);

CIMDateTime(const String & str);

/** CIMDateTime Create a CIMDateTime instance from another

/** Creates a CIMDateTime object from another CIMDateTime object.

CIMDateTime object

@param x Specifies the name of the CIMDateTime object to copy.

@param x CIMDateTime object to be copied.

CIMDateTime(const CIMDateTime& x);

/** DateTime Destructor. */

/** Creates a CIMDateTime object from an integer.

@param microSec For a time stamp, the number of microseconds since

the epoch 0/0/0000 (12 am Jan 1, 1BCE); For an interval, the number

of microseconds in the interval.

@param interval Specifies whether the CIMDateTime object is to be

created as an interval value (true) or a time stamp (false).

@exception DateTimeOutOfRangeException If the microSec value is too

large (greater than 317,455,200,000,000,000 for a time stamps or

8,640,000,000,000,000,000 for an interval).

@exception InvalidDateTimeFormatException If the CIMDateTime object is

not formed correctly.

CIMDateTime(Uint64 microSec, Boolean interval);

/** CIMDateTime destructor. */

~CIMDateTime();

/** Assign one DateTime object to another

/** Assigns one instance of the CIMDateTime object to another.

@param - The DateTime Object to assign

@param x The CIMDateTime Object to assign to the CIMDateTime object.

<pre>

For example, you can assign the d1 CIMDateTime instance to the d2

CIMDateTime instance.

<PRE>

CIMDateTime d1;

CIMDateTime d2 = "00000000000000.000000:000";

d1 = d1;

d1 = d2;

</pre>

CIMDateTime& operator=(const CIMDateTime& x);

/** CIMDateTime isNull method - Tests for an all zero date time. Note that

today this function checks for absolute datetime == zero, not interval.

<PRE>

CIMDateTime dt;

dt.clear();

assert(dt.isNull());

</PRE>

@return This method returns true of the contents are

Therefore, d1 is assigned the same "00000000000000.000000:000" value as d2.

"00000000000000.000000:000". Else it returns false

Boolean isNull() const;

CIMDateTime& operator=(const CIMDateTime& x);

/** getString - Returns the string representing the DateTime value of the

/** Returns a string representing the DateTime value of the

CIMDateTime Object.

CIMDateTime object.

ATTN: P3 KS. This simply returns a string whether the datetime is a

@return String representing the DateTime value.

real value or the NULL value. It is up to the user to test. Should

this be modified so we do something like an interupt on NULL?

String toString() const;

const char* getString() const;

/** Sets the datetime value from the input parameter.

@param str String containing the new value in the datetime format

/** method set - Sets the date time. Creates the CIMDateTime instance from

(specified in the CIMDateTime class description). For example, the

the input string constant which must be

following sets the date to December 24, 1999 and time to 12:00 P.M.

in the datetime format.

EST.

<PRE>

CIMDateTime dt;

dt.set("19991224120000.000000+360");

dt.set("19991224120000.000000-300");

</PRE>

@return On format error, CIMDateTime set throws the exception

@exception InvalidDateTimeFormatException If the datetime String is not

BadDateTimeFormat

formatted correctly.

@exception Throws exception BadDateTimeFormat on format error.

void set(const char* str);

void set(const String & str);

/** clear - Clears the datetime class instance. The date time is set to our

/** Clears the datetime class object. The date time is set to

defintion of NULL, absolute zero date time.

a zero interval value.

void clear();

/**

/** Returns the current local time in a CIMDateTime object.

Get current time as CIMDateTime. The time returned is always in UTC format.

@return CIMDateTime object containing the current local date and time.

@return CIMDateTime Contains the current datetime as a CIMDateTime object.

Note: Original code was taken from OperationSystem::getLocalDateTime()

static CIMDateTime getCurrentDateTime();

/**

/** Computes the difference in microseconds between two CIMDateTime time

Get the difference between two CIMDateTimes.

stamps or two CIMDateTime intervals.

@param startTime Contains the start datetime.

@param startTime Contains the start time.

@param finishTime Contains the finish datetime.

@return An integer that contains the difference between the two

@param finishTime Contains the finish time.

datetime values (in microseconds).

@exception InvalidDateTimeFormatException If arguments are not the same

@return difference Difference between the two datetimes in seconds.

type of CIMDateTime.

@throws BadFormat

static Real64 getDifference(CIMDateTime startTime, CIMDateTime finishTime);

static Sint64 getDifference(CIMDateTime startTime, CIMDateTime finishTime);

/**

/** Checks whether the datetime is an interval.

Checks whether the datetime is an interval.

@return True if the datetime is an interval value, false otherwise.

@return isInterval True if the datetime is an interval, else false

Boolean isInterval() const;

Boolean isInterval();

//#ifdef PEGASUS_INTERNALONLY

/** Compares the CIMDateTime object to another CIMDateTime object for

private:

equality.

@param x CIMDateTime object to be compared.

@return true if the two CIMDateTime objects are equal, false otherwise

@exception TypeMismatchException If arguments are of different types.

Boolean equal(const CIMDateTime & x) const;

/** Converts a CIMDateTime object to its microsecond representation.

@return Number of microseconds since the epoch (for time stamps) or

in a span of time (for intervals).

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

Uint64 toMicroSeconds() const;

/** Adds two CIMDateTime objects and returns a CIMDateTime object that

represents the sum.

@param cDT operand on the RHS of the operator

@return A CIMDateTime object that is the result of adding the calling

object to the RHS operand

@exception DateTimeOutOfRangeException If the operation causes an

overflow condition.

@exception TypeMismatchException If the operands are not type

compatible (see table of operations).

CIMDateTime operator+(const CIMDateTime& cDT) const;

/** Adds two CIMDateTime objects, returns the sum and changes

the value of the calling CIMDateTime object to match the return value.

@param cDT operand on the RHS of the operator

@return A CIMDateTime object that is the result of adding the calling

object to the RHS operand

@exception DateTimeOutOfRangeException If the operation causes an

overflow condition.

@exception TypeMismatchException If the operands are not type

compatible (see table of operations).

CIMDateTime & operator+=(const CIMDateTime& cDT);

/** Subtracts one CIMDateTime object from another and returns a

CIMDateTime object that represents the difference.

@param cDT operand on the RHS of the operator

@return A CIMDateTime object that is the result of subtracting the

the RHS object from the calling.

@exception DateTimeOutOfRangeException If the operation causes an

underflow condition or conversion to UTC (an internal operation)

causes an overflow condition.

@exception TypeMismatchException If the operands are not type

compatible (see table of operations).

CIMDateTime operator-(const CIMDateTime& cDT) const;

/** Subtracts one CIMDateTime object from another, returns the difference

and changes the value of the calling CIMDateTime object to match the

return value.

@param cDT operand on the RHS of the operator

@return A CIMDateTime object that is the result of subtracting the

object on the RHS from the calling object.

@exception DateTimeOutOfRangeException If the operation causes an

underflow condition or conversion to UTC (an internal operation)

causes an overflow condition.

@exception TypeMismatchException If the operands are not type

compatible (see table of operations).

CIMDateTime & operator-=(const CIMDateTime& cDT);

/** Multiplies a CIMDateTime object by an integer and returns a CIMDateTime

object that represents the product.

@param num integer operand on the RHS of the operator

@return A CIMDateTime object that is the result of multiplying the

calling object by the RHS operand.

@exception DateTimeOutOfRangeException If the operation causes an

overflow condition.

@exception TypeMismatchException If the operands are not type

compatible (see table of operations).

CIMDateTime operator*(Uint64 num) const;

/** Multiplies a CIMDateTime object by an integer, returns the product

and changes the value of the calling object to match the returned

product.

@param num integer operand on the RHS of the operator

@return A CIMDateTime object that is the result of multiplying the

calling object by the RHS operand.

@exception DateTimeOutOfRangeException If the operation causes an

overflow condition.

@exception TypeMismatchException If the operands are not type

compatible (see table of operations).

CIMDateTime & operator*=(Uint64 num);

/** Divides a CIMDateTime object by an integer and returns a CIMDateTime

object that represents the quotient.

@param num integer operand on the RHS of the operator

@return A CIMDateTime object that is the result of dividing the calling

object by the RHS operand.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException If the CIMDateTime object does not

hold an interval value (see table of operations).

@exception Exception if param num is zero.

CIMDateTime operator/(Uint64 num) const;

/** Divides a CIMDateTime object by an integer, returns the quotient

and changes the value of the calling object to match the returned

quotient.

@param num integer operand on the RHS of the operator

@return A CIMDateTime object that is the result of dividing the calling

object by the RHS operand.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException If the CIMDateTime object does not

hold an interval value (see table of operations).

@exception Exception if param num is zero.

CIMDateTime & operator/=(Uint64 num);

/** Divides a CIMDateTime object by another CIMDateTime object and returns

an integer quotient.

@param cdt CIMDateTime object on the RHS of the operator

@return An integer that is the result of dividing the number of

microseconds represented by the calling CIMDateTime object by the

number of microseconds represented by the CIMDateTime object on the

RHS of the operator.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException If the operands are not type

compatible (see table of operations).

Uint64 operator/(const CIMDateTime& cdt) const;

/** Compare two CIMDateTime objects and returns true if the LHS is

less than the RHS.

@param cDT operand on the RHS of the operator

@return true if the LHS is less than the RHS, false otherwise.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException if operands are not of the same

type.

Boolean operator<(const CIMDateTime& cDT) const;

/** Compare two CIMDateTime objects and returns true if the LHS is

less than or equal to the RHS.

@param cDT operand on the RHS of the operator

@return true if the LHS is less than or equal to the RHS, false

otherwise.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException if operands are not of the same

type.

Boolean operator<=(const CIMDateTime& cDT) const;

/** Compare two CIMDateTime objects and returns true if the LHS is

greater than the RHS.

@param cDT operand on the RHS of the operator

@return true if the LHS is greater than the RHS, false otherwise.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException if operands are not of the same

type.

Boolean operator>(const CIMDateTime & cDT) const;

/** Compare two CIMDateTime objects and returns true if the LHS is

greater than or equal to the RHS.

@param cDT operand on the RHS of the operator

@return true if the LHS is greater than or equal to the RHS, false

otherwise.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException if operands are not of the same

type.

Boolean operator>=(const CIMDateTime & cDT) const;

/** Compare two CIMDateTime objects and returns true if the LHS is

not equal to the RHS.

@param cDT operand on the RHS of the operator

@return true if the LHS is not equal to RHS, false otherwise.

@exception DateTimeOutOfRangeException If conversion to UTC (an

internal operation) causes an overflow condition.

@exception TypeMismatchException if operands are not of the same

type.

Boolean operator!=(const CIMDateTime & cDT) const;

enum { FORMAT_LENGTH = 25 };

private:

CIMDateTimeRep* _rep;

// Length of the string required to store only the date and time without

Boolean _set(const String & dateTimeStr);

// the UTC sign and UTC offset.

enum Field {ONLY_WILD_CARDS, SOME_WILD_CARDS, ONLY_DIGITS, ERR};

// Format is yyyymmddhhmmss.

// Note : The size does not include the null byte.

enum { DATE_TIME_LENGTH = 14 };

Field fieldcheck(const String & in_p, String & rep_field);

// Length of the string required to store the formatted date and time

// Format is yyyy:mm:dd:hh:mm:ss.

enum { FORMATTED_DATE_TIME = 20 };

Boolean _set(const char* str);

Boolean restOfFields(Uint32 start_position,const String & inStr);

char _rep[FORMAT_LENGTH + 1];

Uint64 _toMicroSeconds();

/**

void convertToUTC();

This function extracts the different components of the date and time

from the string passed and assigns it to the tm structure.

@param dateTimeStr Contains the string to be assigned.

void setUtcOffSet(Sint32 utc);

@param tm Contains the tm structure to be updated.

void insert_WildCard(Uint32 index);

static void formatDateTime(char* dateTime, tm* tm);

//#endif

/** CIMDateTime - ATTN: Friend operator Test for CIMDateTime

Uint32 getHighestWildCardPosition(const CIMDateTime & cDT_s);

equality

PEGASUS_COMMON_LINKAGE friend Boolean operator==(

const CIMDateTime& x,

const CIMDateTime& y);

};

/** Compares two CIMDateTime objects and returns true if they represent the

same time or length of time.

@param x one of the CIMDateTime objects to be compared

@param y one of the CIMDateTime objects to be compared

@return true if the two objects passed in represent the same time or

length of time, false otherwise.

PEGASUS_COMMON_LINKAGE Boolean operator==(

const CIMDateTime& x,

const CIMDateTime& y);

#ifdef PEGASUS_INTERNALONLY

PEGASUS_COMMON_LINKAGE PEGASUS_STD(ostream)& operator<<(

PEGASUS_STD(ostream)& os,

const CIMDateTime& x);

#endif

#define PEGASUS_ARRAY_T CIMDateTime

# include "ArrayInter.h"

# include <Pegasus/Common/ArrayInter.h>

#undef PEGASUS_ARRAY_T

PEGASUS_NAMESPACE_END

#endif /* Pegasus_DateTime_h */

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