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version 1.3, 2001/04/25 22:20:53

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.

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

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

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

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

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// deal in the Software without restriction, including without limitation the

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// furnished to do so, subject to the following conditions:

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

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// ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED

// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

// "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT

// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

// LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR

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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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

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

// Modified By:

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

#ifndef Pegasus_DateTime_h

#define Pegasus_DateTime_h

#include <Pegasus/Common/Config.h>

#include <iostream>

#include <Pegasus/Common/Array.h>

#include <Pegasus/Common/Linkage.h>

PEGASUS_NAMESPACE_BEGIN

class CIMDateTimeRep;

/**

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:

Line 62

Line 72

Where

dddddddd = days

hh = hours

hh = hours (0-23)

mm = minutes

mm = minutes (0-59)

ss = seconds

ss = seconds (0-59)

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.

ATTN: Add inequalities.

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:

enum { FORMAT_LENGTH = 25 };

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

/// CIMDateTime CIMMethod

CIMDateTime();

/** CIMDateTime CIMMethod creates the CIM CIMDateTime from a string

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

constant.

the CIM DateTime formatted datetime.

See the class documentation for CIMDateTime for the definition of the

input string for absolute and interval datetime.

@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 CIMMethod - Creates the CIMDateTime instance from another

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

CIMDateTime instance

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

CIMDateTime(const CIMDateTime& x);

/** CIMDateTime method again

/** 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& operator=(const CIMDateTime& x);

CIMDateTime(Uint64 microSec, Boolean interval);

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

/** CIMDateTime destructor. */

~CIMDateTime();

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

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

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

CIMDateTime instance.

<PRE>

CIMDateTime dt;

CIMDateTime d1;

dt.clear();

CIMDateTime d2 = "00000000000000.000000:000";

assert(dt.isNull());

d1 = d2;

</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);

/// method getString

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

const char* getString() const;

CIMDateTime object.

@return String representing the DateTime value.

String toString() const;

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

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

the input string constant which must be

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

in the datetime format.

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

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

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);

/// CIMDateTime method clear - Clears the datetime class instance.

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

a zero interval value.

void clear();

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

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

equality

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

PEGASUS_COMMON_LINKAGE friend Boolean operator==(

static CIMDateTime getCurrentDateTime();

const CIMDateTime& x,

const CIMDateTime& y);

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

stamps or two CIMDateTime intervals.

@param startTime Contains the start datetime.

@param finishTime Contains the finish datetime.

@return An integer that contains the difference between the two

datetime values (in microseconds).

@exception InvalidDateTimeFormatException If arguments are not the same

type of CIMDateTime.

static Sint64 getDifference(CIMDateTime startTime, CIMDateTime finishTime);

/** Checks whether the datetime is an interval.

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

Boolean isInterval() const;

Boolean isInterval();

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

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;

private:

Boolean _set(const char* str);

CIMDateTimeRep* _rep;

char _rep[FORMAT_LENGTH + 1];

Boolean _set(const String & dateTimeStr);

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

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

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

Uint64 _toMicroSeconds();

void convertToUTC();

void setUtcOffSet(Sint32 utc);

void insert_WildCard(Uint32 index);

Uint32 getHighestWildCardPosition(const CIMDateTime & cDT_s);

};

/** 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);

PEGASUS_COMMON_LINKAGE std::ostream& operator<<(

#define PEGASUS_ARRAY_T CIMDateTime

std::ostream& os,

# include <Pegasus/Common/ArrayInter.h>

const CIMDateTime& x);

#undef PEGASUS_ARRAY_T

PEGASUS_NAMESPACE_END

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