OpenDDS::DCPS::Value Struct Reference

#include <FilterEvaluator.h>

Collaboration diagram for OpenDDS::DCPS::Value:

Public Types
enum	Type {   VAL_BOOL, VAL_INT, VAL_UINT, VAL_I64,   VAL_UI64, VAL_FLOAT, VAL_LNGDUB, VAL_LARGEST_NUMERIC = VAL_LNGDUB,   VAL_CHAR, VAL_STRING }

Public Member Functions
	Value (bool b, bool conversion_preferred=false)
	Value (int i, bool conversion_preferred=false)
	Value (unsigned int u, bool conversion_preferred=false)
	Value (ACE_INT64 l, bool conversion_preferred=false)
	Value (ACE_UINT64 m, bool conversion_preferred=false)
	Value (char c, bool conversion_preferred=false)
	Value (double f, bool conversion_preferred=false)
	Value (ACE_CDR::LongDouble ld, bool conversion_preferred=false)
	Value (const char *s, bool conversion_preferred=false)
	Value (const std::string &s, bool conversion_preferred=false)
	Value (const TAO::String_Manager &s, bool conversion_preferred=false)
	Value (const TAO::WString_Manager &s, bool conversion_preferred=false)
	~Value ()
	Value (const Value &v)
Value &	operator= (const Value &v)
void	swap (Value &other)
bool	operator== (const Value &v) const
bool	operator< (const Value &v) const
bool	like (const Value &v) const
Value	operator% (const Value &v) const
bool	convert (Type t)
template<typename T >
T &	get ()
template<typename T >
const T &	get () const
template<>
bool &	get ()
template<>
int &	get ()
template<>
unsigned int &	get ()
template<>
ACE_INT64 &	get ()
template<>
ACE_UINT64 &	get ()
template<>
char &	get ()
template<>
double &	get ()
template<>
ACE_CDR::LongDouble &	get ()
template<>
const char *&	get ()
template<>
const bool &	get () const
template<>
const int &	get () const
template<>
const unsigned int &	get () const
template<>
const ACE_INT64 &	get () const
template<>
const ACE_UINT64 &	get () const
template<>
const char &	get () const
template<>
const double &	get () const
template<>
const ACE_CDR::LongDouble &	get () const
template<>
const char *const &	get () const

Static Public Member Functions
static void	conversion (Value &lhs, Value &rhs)

Public Attributes
Type	type_
union {
bool   b_
int   i_
unsigned int   u_
ACE_INT64   l_
ACE_UINT64   m_
char   c_
double   f_
ACE_CDR::LongDouble   ld_
const char *   s_
};
bool	conversion_preferred_

Detailed Description

Definition at line 38 of file FilterEvaluator.h.

Member Enumeration Documentation

Type

enum OpenDDS::DCPS::Value::Type

Enumerator
VAL_BOOL
VAL_INT
VAL_UINT
VAL_I64
VAL_UI64
VAL_FLOAT
VAL_LNGDUB
VAL_LARGEST_NUMERIC
VAL_CHAR
VAL_STRING

Definition at line 68 of file FilterEvaluator.h.

            {VAL_BOOL, VAL_INT, VAL_UINT, VAL_I64, VAL_UI64, VAL_FLOAT,
             VAL_LNGDUB, VAL_LARGEST_NUMERIC = VAL_LNGDUB,
             VAL_CHAR, VAL_STRING};

Constructor & Destructor Documentation

Value() [1/13]

OpenDDS::DCPS::Value::Value	(	bool	b,
		bool	conversion_preferred = false
	)

Definition at line 581 of file FilterEvaluator.cpp.

Referenced by Value().

  : type_(VAL_BOOL), b_(b), conversion_preferred_(conversion_preferred)
{}

Value() [2/13]

OpenDDS::DCPS::Value::Value	(	int	i,
		bool	conversion_preferred = false
	)

Definition at line 585 of file FilterEvaluator.cpp.

  : type_(VAL_INT), i_(i), conversion_preferred_(conversion_preferred)
{}

Value() [3/13]

OpenDDS::DCPS::Value::Value	(	unsigned int	u,
		bool	conversion_preferred = false
	)

Definition at line 589 of file FilterEvaluator.cpp.

  : type_(VAL_UINT), u_(u), conversion_preferred_(conversion_preferred)
{}

Value() [4/13]

OpenDDS::DCPS::Value::Value	(	ACE_INT64	l,
		bool	conversion_preferred = false
	)

Definition at line 593 of file FilterEvaluator.cpp.

  : type_(VAL_I64), l_(l), conversion_preferred_(conversion_preferred)
{}

Value() [5/13]

OpenDDS::DCPS::Value::Value	(	ACE_UINT64	m,
		bool	conversion_preferred = false
	)

Definition at line 597 of file FilterEvaluator.cpp.

  : type_(VAL_UI64), m_(m), conversion_preferred_(conversion_preferred)
{}

Value() [6/13]

OpenDDS::DCPS::Value::Value	(	char	c,
		bool	conversion_preferred = false
	)

Definition at line 601 of file FilterEvaluator.cpp.

  : type_(VAL_CHAR), c_(c), conversion_preferred_(conversion_preferred)
{}

Value() [7/13]

OpenDDS::DCPS::Value::Value	(	double	f,
		bool	conversion_preferred = false
	)

Definition at line 605 of file FilterEvaluator.cpp.

  : type_(VAL_FLOAT), f_(f), conversion_preferred_(conversion_preferred)
{}

Value() [8/13]

OpenDDS::DCPS::Value::Value	(	ACE_CDR::LongDouble	ld,
		bool	conversion_preferred = false
	)

Definition at line 609 of file FilterEvaluator.cpp.

References ACE_CDR_LONG_DOUBLE_ASSIGNMENT, conversion_preferred_, ld_, type_, VAL_LNGDUB, and Value().

  : type_(VAL_LNGDUB), ld_(ld), conversion_preferred_(conversion_preferred)
{}

Value() [9/13]

OpenDDS::DCPS::Value::Value	(	const char *	s,
		bool	conversion_preferred = false
	)

Definition at line 621 of file FilterEvaluator.cpp.

References strdup().

  : type_(VAL_STRING), s_(ACE_OS::strdup(s))
  , conversion_preferred_(conversion_preferred)
{}

Value() [10/13]

OpenDDS::DCPS::Value::Value	(	const std::string &	s,
		bool	conversion_preferred = false
	)

Definition at line 626 of file FilterEvaluator.cpp.

References conversion_preferred_, s_, strdup(), ACE_OS::strdup(), type_, VAL_STRING, and Value().

  : type_(VAL_STRING), s_(ACE_OS::strdup(s.c_str()))
  , conversion_preferred_(conversion_preferred)
{}

Value() [11/13]

OpenDDS::DCPS::Value::Value	(	const TAO::String_Manager &	s,
		bool	conversion_preferred = false
	)

Definition at line 638 of file FilterEvaluator.cpp.

References strdup().

  : type_(VAL_STRING), s_(ACE_OS::strdup(s.in()))
  , conversion_preferred_(conversion_preferred)
{}

Value() [12/13]

OpenDDS::DCPS::Value::Value	(	const TAO::WString_Manager &	s,
		bool	conversion_preferred = false
	)

Definition at line 643 of file FilterEvaluator.cpp.

References strdup().

  : type_(VAL_STRING)
#ifdef DDS_HAS_WCHAR
  , s_(ACE_OS::strdup(ACE_Wide_To_Ascii(s.in()).char_rep()))
#else
  , s_(0)
#endif
  , conversion_preferred_(conversion_preferred)
{
#ifndef DDS_HAS_WCHAR
  ACE_UNUSED_ARG(s);
#endif
}

~Value()

OpenDDS::DCPS::Value::~Value

(

)

Definition at line 677 of file FilterEvaluator.cpp.

References ACE_OS::free(), s_, steal_, ACE_OS::strdup(), tgt_, type_, VAL_BOOL, VAL_CHAR, VAL_FLOAT, VAL_I64, VAL_INT, VAL_LNGDUB, VAL_STRING, VAL_UI64, and VAL_UINT.

{
  if (type_ == VAL_STRING) ACE_OS::free((void*)s_);
}

Value() [13/13]

OpenDDS::DCPS::Value::Value

(

const Value &

v

)

Definition at line 734 of file FilterEvaluator.cpp.

  : type_(v.type_), conversion_preferred_(v.conversion_preferred_)
{
  Assign visitor(*this);
  visit(visitor, v);
}

Member Function Documentation

conversion()

void OpenDDS::DCPS::Value::conversion ( Value &  lhs, Value &  rhs  )

static

Definition at line 961 of file FilterEvaluator.cpp.

References conversion_preferred_, convert(), type_, VAL_CHAR, VAL_LARGEST_NUMERIC, and VAL_STRING.

Referenced by operator%(), operator<(), and operator==().

{
  if (lhs.type_ == rhs.type_) {
    return;
  }
  bool ok = false;
  Value& smaller = (lhs.type_ < rhs.type_) ? lhs : rhs;
  Value& larger = (lhs.type_ < rhs.type_) ? rhs : lhs;
  if (smaller.conversion_preferred_) {
    ok = smaller.convert(larger.type_);
  } else if (larger.conversion_preferred_) {
    ok = larger.convert(smaller.type_);
  } else if (smaller.type_ == VAL_CHAR && larger.type_ == VAL_STRING) {
    ok = smaller.convert(VAL_STRING);
  } else if (larger.type_ <= VAL_LARGEST_NUMERIC) {
    ok = smaller.convert(larger.type_);
  } else if (larger.type_ == VAL_STRING) {
    if (larger.convert(smaller.type_)) {
      ok = true;
    } else {
      ok = smaller.convert(VAL_STRING);
    }
  }
  if (!ok) {
    throw std::runtime_error("Types don't match and aren't convertible.");
  }
}

convert()

bool OpenDDS::DCPS::Value::convert

(

Type

t

)

Definition at line 929 of file FilterEvaluator.cpp.

References conversion_preferred_, OPENDDS_STRING, s_, ACE_OS::strdup(), swap(), type_, and VAL_STRING.

Referenced by conversion().

{
  OPENDDS_STRING asString;
  if (type_ == VAL_STRING) {
    asString = s_;
  } else {
    std::ostringstream oss;
    StreamInsert visitor(oss);
    visit(visitor, *this);
    asString = oss.str();
  }

  Value newval = 0;
  newval.type_ = t;
  newval.conversion_preferred_ = false;
  if (t == VAL_STRING) {
    newval.s_ = ACE_OS::strdup(asString.c_str());
    swap(newval);
    return true;
  } else {
    std::istringstream iss(asString);
    StreamExtract visitor(iss);
    visit(visitor, newval);
    if (iss.eof() && !iss.bad()) {
      swap(newval);
      return true;
    }
    return false;
  }
}

get() [1/20]

template<typename T >

T& OpenDDS::DCPS::Value::get

(

)

Referenced by OpenDDS::XTypes::DynamicDataImpl::get_simple_value_boolean(), OpenDDS::XTypes::DynamicDataImpl::get_simple_value_char(), OpenDDS::XTypes::DynamicDataImpl::get_simple_value_primitive(), and OpenDDS::XTypes::DynamicDataImpl::get_simple_value_string().

get() [2/20]

template<typename T >

const T& OpenDDS::DCPS::Value::get

(

)

const

get() [3/20]

template<>

bool& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 657 of file FilterEvaluator.cpp.

References b_.

{ return b_; }

get() [4/20]

template<>

int& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 658 of file FilterEvaluator.cpp.

References i_.

{ return i_; }

get() [5/20]

template<>

unsigned int& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 659 of file FilterEvaluator.cpp.

References u_.

{ return u_; }

get() [6/20]

template<>

ACE_INT64& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 660 of file FilterEvaluator.cpp.

References l_.

{ return l_; }

get() [7/20]

template<>

ACE_UINT64& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 661 of file FilterEvaluator.cpp.

References m_.

{ return m_; }

get() [8/20]

template<>

char& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 662 of file FilterEvaluator.cpp.

References c_.

{ return c_; }

get() [9/20]

template<>

double& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 663 of file FilterEvaluator.cpp.

References f_.

{ return f_; }

get() [10/20]

template<>

ACE_CDR::LongDouble& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 664 of file FilterEvaluator.cpp.

References ld_.

{ return ld_; }

get() [11/20]

template<>

const char*& OpenDDS::DCPS::Value::get

(

void

)

Definition at line 665 of file FilterEvaluator.cpp.

References s_.

{ return s_; }

get() [12/20]

template<>

const bool& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 667 of file FilterEvaluator.cpp.

References b_.

{ return b_; }

get() [13/20]

template<>

const int& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 668 of file FilterEvaluator.cpp.

References i_.

{ return i_; }

get() [14/20]

template<>

const unsigned int& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 669 of file FilterEvaluator.cpp.

References u_.

{ return u_; }

get() [15/20]

template<>

const ACE_INT64& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 670 of file FilterEvaluator.cpp.

References l_.

{ return l_; }

get() [16/20]

template<>

const ACE_UINT64& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 671 of file FilterEvaluator.cpp.

References m_.

{ return m_; }

get() [17/20]

template<>

const char& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 672 of file FilterEvaluator.cpp.

References c_.

{ return c_; }

get() [18/20]

template<>

const double& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 673 of file FilterEvaluator.cpp.

References f_.

{ return f_; }

get() [19/20]

template<>

const ACE_CDR::LongDouble& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 674 of file FilterEvaluator.cpp.

References ld_.

{ return ld_; }

get() [20/20]

template<>

const char* const& OpenDDS::DCPS::Value::get

(

void

)

const

Definition at line 675 of file FilterEvaluator.cpp.

References s_.

{ return s_; }

like()

bool OpenDDS::DCPS::Value::like

(

const Value &

v

)

const

Definition at line 871 of file FilterEvaluator.cpp.

References OPENDDS_STRING, os_, s_, type_, VAL_STRING, and ACE::wild_match().

{
  if (type_ != VAL_STRING || v.type_ != VAL_STRING) {
    throw std::runtime_error("'like' operator called on non-string arguments.");
  }
  OPENDDS_STRING pattern(v.s_);
  // escape ? or * in the pattern string so they are not wildcards
  for (size_t i = pattern.find_first_of("?*"); i < pattern.length();
      i = pattern.find_first_of("?*", i + 1)) {
    pattern.insert(i++, 1, '\\');
  }
  // translate _ and % wildcards into those used by ACE::wild_match() (?, *)
  for (size_t i = pattern.find_first_of("_%"); i < pattern.length();
      i = pattern.find_first_of("_%", i + 1)) {
    pattern[i] = (pattern[i] == '_') ? '?' : '*';
  }
  return ACE::wild_match(s_, pattern.c_str(), true, true);
}

operator%()

Value OpenDDS::DCPS::Value::operator%

(

const Value &

v

)

const

Definition at line 861 of file FilterEvaluator.cpp.

References conversion().

{
  Value lhs = *this;
  Value rhs = v;
  conversion(lhs, rhs);
  Modulus visitor(lhs);
  return visit(visitor, rhs);
}

operator<()

bool OpenDDS::DCPS::Value::operator<

(

const Value &

v

)

const

Definition at line 851 of file FilterEvaluator.cpp.

References conversion().

{
  Value lhs = *this;
  Value rhs = v;
  conversion(lhs, rhs);
  Less visitor(lhs);
  return visit(visitor, rhs);
}

operator=()

Value & OpenDDS::DCPS::Value::operator=

(

const Value &

v

)

Definition at line 742 of file FilterEvaluator.cpp.

References swap().

{
  Value cpy(v);
  swap(cpy);
  return *this;
}

operator==()

bool OpenDDS::DCPS::Value::operator==

(

const Value &

v

)

const

Definition at line 841 of file FilterEvaluator.cpp.

References conversion().

{
  Value lhs = *this;
  Value rhs = v;
  conversion(lhs, rhs);
  Equals visitor(lhs);
  return visit(visitor, rhs);
}

swap()

void OpenDDS::DCPS::Value::swap

(

Value &

other

)

Definition at line 750 of file FilterEvaluator.cpp.

References conversion_preferred_, ACE_OS::free(), lhs_, s_, OpenDDS::DCPS::swap(), type_, and VAL_STRING.

Referenced by convert(), and operator=().

{
  Value t(v);

  if (v.type_ == VAL_STRING) {
    ACE_OS::free((void*)v.s_);
  }

  Assign visitor1(v, true);
  visit(visitor1, *this);
  if (type_ == VAL_STRING) {
    s_ = 0;
  }

  Assign visitor2(*this, true);
  visit(visitor2, t);
  if (t.type_ == VAL_STRING) {
    t.s_ = 0;
  }

  std::swap(conversion_preferred_, v.conversion_preferred_);
  std::swap(type_, v.type_);
}

Member Data Documentation

@2

union { ... }

b_

bool OpenDDS::DCPS::Value::b_

Definition at line 78 of file FilterEvaluator.h.

Referenced by OpenDDS::DCPS::FilterEvaluator::eval_i(), get(), and OpenDDS::XTypes::DynamicDataAdapter< T >::get_boolean_value().

c_

char OpenDDS::DCPS::Value::c_

Definition at line 83 of file FilterEvaluator.h.

Referenced by get(), and OpenDDS::XTypes::DynamicDataAdapter< T >::get_char8_value().

conversion_preferred_

bool OpenDDS::DCPS::Value::conversion_preferred_

Definition at line 88 of file FilterEvaluator.h.

Referenced by conversion(), convert(), swap(), and Value().

f_

double OpenDDS::DCPS::Value::f_

Definition at line 84 of file FilterEvaluator.h.

Referenced by get(), OpenDDS::XTypes::DynamicDataAdapter< T >::get_float32_value(), and OpenDDS::XTypes::DynamicDataAdapter< T >::get_float64_value().

i_

int OpenDDS::DCPS::Value::i_

Definition at line 79 of file FilterEvaluator.h.

Referenced by get(), OpenDDS::XTypes::DynamicDataAdapter< T >::get_int16_value(), OpenDDS::XTypes::DynamicDataAdapter< T >::get_int32_value(), and OpenDDS::XTypes::DynamicDataAdapter< T >::get_int8_value().

l_

ACE_INT64 OpenDDS::DCPS::Value::l_

Definition at line 81 of file FilterEvaluator.h.

Referenced by get(), and OpenDDS::XTypes::DynamicDataAdapter< T >::get_int64_value().

ld_

ACE_CDR::LongDouble OpenDDS::DCPS::Value::ld_

Definition at line 85 of file FilterEvaluator.h.

Referenced by get(), OpenDDS::XTypes::DynamicDataAdapter< T >::get_float128_value(), and Value().

m_

ACE_UINT64 OpenDDS::DCPS::Value::m_

Definition at line 82 of file FilterEvaluator.h.

Referenced by get(), and OpenDDS::XTypes::DynamicDataAdapter< T >::get_uint64_value().

s_

const char* OpenDDS::DCPS::Value::s_

Definition at line 86 of file FilterEvaluator.h.

Referenced by convert(), get(), OpenDDS::XTypes::DynamicDataAdapter< T >::get_string_value(), like(), swap(), Value(), and ~Value().

type_

Type OpenDDS::DCPS::Value::type_

Definition at line 76 of file FilterEvaluator.h.

Referenced by conversion(), convert(), like(), swap(), Value(), and ~Value().

u_

unsigned int OpenDDS::DCPS::Value::u_

Definition at line 80 of file FilterEvaluator.h.

Referenced by get(), OpenDDS::XTypes::DynamicDataAdapter< T >::get_uint16_value(), OpenDDS::XTypes::DynamicDataAdapter< T >::get_uint32_value(), and OpenDDS::XTypes::DynamicDataAdapter< T >::get_uint8_value().

---

The documentation for this struct was generated from the following files:

• FilterEvaluator.h
• FilterEvaluator.cpp