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mirror of https://gitlab.isc.org/isc-projects/kea synced 2025-08-30 13:37:55 +00:00

added doxygen docs for most of data.h

copied jinmei's Doxyfile from branches/jinmei-dnsmessageapi


git-svn-id: svn://bind10.isc.org/svn/bind10/branches/parkinglot@417 e5f2f494-b856-4b98-b285-d166d9295462
This commit is contained in:
Jelte Jansen
2009-12-30 13:59:38 +00:00
parent 6cd9f05e65
commit 307918fc7a
3 changed files with 1950 additions and 255 deletions

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@@ -1,3 +1,19 @@
// Copyright (C) 2009 Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.
// $Id$
#ifndef _ISC_DATA_H
#define _ISC_DATA_H 1
@@ -5,283 +21,447 @@
#include <vector>
#include <map>
#include <boost/shared_ptr.hpp>
#include <stdexcept>
#include <iostream>
namespace isc { namespace data {
// todo: include types and called function in the exception
class TypeError : public std::exception {
public:
TypeError(std::string m = "Attempt to use function on wrong Element type") : msg(m) {}
~TypeError() throw() {}
const char* what() const throw() { return msg.c_str(); }
private:
std::string msg;
};
class Element;
// todo: describe the rationale behind ElementPtr?
typedef boost::shared_ptr<Element> ElementPtr;
class ParseError : public std::exception {
public:
ParseError(std::string m = "Parse error in element data", int l = 0, int p = 0) : msg(m), line(l), pos(p) {}
~ParseError() throw() {}
const char* what() const throw();
private:
std::string msg;
int line;
int pos;
};
///
/// \brief A standard Data module exception that is thrown if a function
/// is called for an Element that has a wrong type (e.g. int_value on a
/// ListElement)
///
// todo: include types and called function in the exception
class TypeError : public std::exception {
public:
TypeError(std::string m = "Attempt to use function on wrong Element type") : msg(m) {}
~TypeError() throw() {}
const char* what() const throw() { return msg.c_str(); }
private:
std::string msg;
};
class DecodeError : public std::exception {
public:
DecodeError(std::string m = "Wire-format data is invalid") : msg(m) {}
~DecodeError() throw() {}
const char* what() const throw() { return msg.c_str(); }
private:
std::string msg;
};
///
/// \brief A standard Data module exception that is thrown if a parse
/// error is encountered when constructing an Element from a string
///
class ParseError : public std::exception {
public:
ParseError(std::string m = "Parse error in element data", int l = 0, int p = 0) : msg(m), line(l), pos(p) {}
~ParseError() throw() {}
const char* what() const throw();
private:
std::string msg;
int line;
int pos;
};
class Element;
typedef boost::shared_ptr<Element> ElementPtr;
///
/// \brief A standard Data module exception that is thrown if an error
/// is found when decoding an Element from wire format
///
class DecodeError : public std::exception {
public:
DecodeError(std::string m = "Wire-format data is invalid") : msg(m) {}
~DecodeError() throw() {}
const char* what() const throw() { return msg.c_str(); }
private:
std::string msg;
};
class Element {
///
/// \brief The \c Element class represents a piece of data, used by
/// the command channel and configuration parts.
///
/// An \c Element can contain simple types (int, real, string, bool and
/// None), and composite types (list and string->element maps)
///
/// Elements should in calling functions usually be referenced through
/// an \c ElementPtr, which can be created using the factory functions
/// \c Element::create() and \c Element::createFromString()
///
/// Notes to developers: Element is a base class, implemented by a
/// specific subclass for each type (IntElement, BoolElement, etc).
/// Element does define all functions for all types, and defaults to
/// raising a \c TypeError for functions that are not supported for
/// the type in question.
///
class Element {
private:
// technically the type could be omitted; is it useful?
// should we remove it or replace it with a pure virtual
// function getType?
int type;
private:
// technically the type could be omitted; is it useful?
// should we remove it or replace it with a pure virtual
// function getType?
int type;
protected:
Element(int t) { type = t; }
protected:
Element(int t) { type = t; }
public:
enum types { integer, real, boolean, string, list, map };
// base class; make dtor virtual
virtual ~Element() {};
public:
enum types { integer, real, boolean, string, list, map };
// base class; make dtor virtual
virtual ~Element() {};
// returns the type of this element
int getType() { return type; };
/// \return the type of this element
int getType() { return type; };
// pure virtuals, every derived class must implement these
// pure virtuals, every derived class must implement these
// returns a string representing the Element and all its
// child elements; note that this is different from stringValue(),
// which only returns the single value of a StringElement
// A MapElement will be represented as { "name1": <value1>, "name2", <value2>, .. }
// A ListElement will be represented as [ <item1>, <item2>, .. ]
// All other elements will be represented directly
virtual std::string str() = 0;
/// Returns a string representing the Element and all its
/// child elements; note that this is different from stringValue(),
/// which only returns the single value of a StringElement
/// A MapElement will be represented as { "name1": \<value1\>, "name2", \<value2\>, etc }
/// A ListElement will be represented as [ \<item1\>, \<item2\>, etc ]
/// All other elements will be represented directly
///
/// \return std::string containing the string representation
virtual std::string str() = 0;
// returns an xml representation for the Element and all its
// child elements
virtual std::string strXML(size_t prefix = 0) = 0;
/// Returns an xml representation for the Element and all its
/// child elements
///
/// \param prefix Every line of the xml string will be prefixed with
/// the number of spaces specified here
/// \return std::string containing the xml representation
// todo
virtual std::string strXML(size_t prefix = 0) = 0;
// returns the wireformat for the Element and all its child
// elements
virtual std::string toWire(int omit_length = 1) = 0;
/// Returns the wireformat for the Element and all its child
/// elements.
///
/// \param omit_length If this is non-zero, the item length will
/// be omitted from the wire format
/// \return std::string containing the element in wire format
virtual std::string toWire(int omit_length = 1) = 0;
// Specific getters for each type. These functions only
// work on their corresponding Element type. For all other
// types, a TypeError is thrown.
// If you want an exception-safe getter method, use
// getValue() below
virtual int intValue() { throw TypeError(); };
virtual double doubleValue() { throw TypeError(); };
virtual bool boolValue() { throw TypeError(); };
virtual std::string stringValue() { throw TypeError(); };
virtual const std::vector<boost::shared_ptr<Element> >& listValue() { throw TypeError(); }; // replace with real exception or empty vector?
virtual const std::map<std::string, boost::shared_ptr<Element> >& mapValue() { throw TypeError(); }; // replace with real exception or empty map?
/// \name Type-specific getters
///
///
/// \brief These functions only
/// work on their corresponding Element type. For all other
/// types, a TypeError is thrown.
/// If you want an exception-safe getter method, use
/// getValue() below
//@{
virtual int intValue() { throw TypeError(); };
virtual double doubleValue() { throw TypeError(); };
virtual bool boolValue() { throw TypeError(); };
virtual std::string stringValue() { throw TypeError(); };
virtual const std::vector<boost::shared_ptr<Element> >& listValue() { throw TypeError(); }; // replace with real exception or empty vector?
virtual const std::map<std::string, boost::shared_ptr<Element> >& mapValue() { throw TypeError(); }; // replace with real exception or empty map?
//@}
// Other functions for specific subtypes
/// \name Exception-safe getters
///
/// \brief The getValue() functions return false if the given reference
/// is of another type than the element contains
/// By default it always returns false; the derived classes
/// override the function for their type, copying their
/// data to the given reference and returning true
///
//@{
virtual bool getValue(int& t) { return false; };
virtual bool getValue(double& t) { return false; };
virtual bool getValue(bool& t) { return false; };
virtual bool getValue(std::string& t) { return false; };
virtual bool getValue(std::vector<ElementPtr>& t) { return false; };
virtual bool getValue(std::map<std::string, ElementPtr>& t) { return false; };
//@}
///
/// \name Exception-safe setters.
///
/// \brief Return false if the Element is not
/// the right type. Set the value and return true if the Elements
/// is of the correct type
///
//@{
virtual bool setValue(const int v) { return false; };
virtual bool setValue(const double v) { return false; };
virtual bool setValue(const bool t) { return false; };
virtual bool setValue(const std::string& v) { return false; };
virtual bool setValue(const std::vector<ElementPtr>& v) { return false; };
virtual bool setValue(const std::map<std::string, ElementPtr>& v) { return false; };
//@}
// for lists
virtual ElementPtr get(const int i) { throw TypeError(); };
virtual void set(const int i, ElementPtr element) { throw TypeError(); };
virtual void add(ElementPtr element) { throw TypeError(); };
virtual void remove(const int i) { throw TypeError(); };
virtual size_t size() { throw TypeError(); };
// for maps
virtual ElementPtr get(const std::string& name) { throw TypeError(); } ;
virtual void set(const std::string& name, ElementPtr element) { throw TypeError(); };
virtual void remove(const std::string& name) { throw TypeError(); };
virtual bool contains(const std::string& s) { throw TypeError(); }
virtual ElementPtr find(const std::string& identifier) { throw TypeError(); };
virtual bool find(const std::string& id, ElementPtr& t) { return false; };
//
// the _value() functions return false if the given reference
// is of another type than the element contains
// By default it always returns false; the derived classes
// should override the function for their type, copying their
// data to the given reference and returning true
//
virtual bool getValue(int& t) { return false; };
virtual bool getValue(double& t) { return false; };
virtual bool getValue(bool& t) { return false; };
virtual bool getValue(std::string& t) { return false; };
virtual bool getValue(std::vector<ElementPtr>& t) { return false; };
virtual bool getValue(std::map<std::string, ElementPtr>& t) { return false; };
// Other functions for specific subtypes
//
// Exception-safe setters. Return false if the Element is not
// the right type. Set the value and return true if the Elements
// is of the correct type
//
virtual bool setValue(const int v) { return false; };
virtual bool setValue(const double v) { return false; };
virtual bool setValue(const bool t) { return false; };
virtual bool setValue(const std::string& v) { return false; };
virtual bool setValue(const std::vector<ElementPtr>& v) { return false; };
virtual bool setValue(const std::map<std::string, ElementPtr>& v) { return false; };
/// \name ListElement functions
///
/// \brief If the Element on which these functions are called are not
/// an instance of ListElement, a TypeError exception is thrown.
//@{
/// Returns the ElementPtr at the given index. If the index is out
/// of bounds, this function throws an std::out_of_range exception.
/// \param i The position of the ElementPtr to return
virtual ElementPtr get(const int i) { throw TypeError(); };
/// Sets the ElementPtr at the given index. If the index is out
/// of bounds, this function throws an std::out_of_range exception.
/// \param i The position of the ElementPtr to set
/// \param element The ElementPtr to set at the position
virtual void set(const size_t i, ElementPtr element) { throw TypeError(); };
/// Adds an ElementPtr to the list
/// \param element The ElementPtr to add
virtual void add(ElementPtr element) { throw TypeError(); };
/// Removes the element at the given position. If the index is out
/// of nothing happens.
/// \param i The index of the element to remove.
virtual void remove(const int i) { throw TypeError(); };
/// Returns the number of elements in the list.
virtual size_t size() { throw TypeError(); };
//@}
// should we move all factory functions to a different class
// so as not to burden the Element base with too many functions?
// and/or perhaps even to a separate header?
/// \name MapElement functions
///
/// \brief If the Element on which these functions are called are not
/// an instance of MapElement, a TypeError exception is thrown.
//@{
/// Returns the ElementPtr at the given key
/// \param name The key of the Element to return
/// \return The ElementPtr at the given key
virtual ElementPtr get(const std::string& name) { throw TypeError(); } ;
/// Sets the ElementPtr at the given key
/// \param name The key of the Element to set
virtual void set(const std::string& name, ElementPtr element) { throw TypeError(); };
/// Remove the ElementPtr at the given key
/// \param name The key of the Element to remove
virtual void remove(const std::string& name) { throw TypeError(); };
/// Checks if there is data at the given key
/// \param name The key of the Element to remove
/// \return true if there is data at the key, false if not.
virtual bool contains(const std::string& name) { throw TypeError(); }
/// Recursively finds any data at the given identifier. The
/// identifier is a /-separated list of names of nested maps, with
/// the last name being the leaf that is returned.
///
/// For instance, if you have a MapElement that contains another
/// MapElement at the key "foo", and that second MapElement contains
/// Another Element at key "bar", the identifier for that last
/// element from the first is "foo/bar".
///
/// \param identifier The identifier of the element to find
/// \return The ElementPtr at the given identifier. Returns a
/// null ElementPtr if it is not found, which can be checked with
/// Element::is_null(ElementPtr e).
virtual ElementPtr find(const std::string& identifier) { throw TypeError(); };
/// See \c Element::find()
/// \param identifier The identifier of the element to find
/// \param t Reference to store the resulting ElementPtr, if found.
/// \return true if the element was found, false if not.
virtual bool find(const std::string& identifier, ElementPtr& t) { return false; };
//@}
// direct factory functions; will simply wrap
// the argument in a shared Element pointer object
// these return a NULL shared pointer if no memory could be
// allocated
static ElementPtr create(const int i);
static ElementPtr create(const double d);
static ElementPtr create(const bool b);
static ElementPtr create(const std::string& s);
// need both std:string and char *, since c++ will match
// bool before std::string when you pass it a char *
static ElementPtr create(const char *s) { return create(std::string(s)); };
static ElementPtr create(const std::vector<ElementPtr>& v);
static ElementPtr create(const std::map<std::string, ElementPtr>& m);
/// \name Factory functions
// compound factory functions
// return a NULL ElementPtr if there is a parse error or
// the memory could not be allocated
// example:
// ElementPtr my_element = Element::createFromString("{\"foo\": [ 1, 2, false ] }");
//static ElementPtr createFromString(std::stringstream& in);
static ElementPtr createFromString(const std::string& in);
static ElementPtr createFromString(std::istream& in) throw(ParseError);
// make this one private?
static ElementPtr createFromString(std::istream& in, int& line, int &pos) throw(ParseError);
// TODO: should we move all factory functions to a different class
// so as not to burden the Element base with too many functions?
// and/or perhaps even to a separate header?
//static ElementPtr create_from_xml(std::stringstream& in);
/// \name Direct factory functions
/// \brief These functions simply wrap the given data directly
/// in an Element object, and return a reference to it, in the form
/// of an \c ElementPtr.
/// If there is a memory allocation problem, these functions will
/// return a NULL ElementPtr, which can be checked with
/// Element::is_null(ElementPtr ep).
//@{
static ElementPtr create(const int i);
static ElementPtr create(const double d);
static ElementPtr create(const bool b);
static ElementPtr create(const std::string& s);
// need both std:string and char *, since c++ will match
// bool before std::string when you pass it a char *
static ElementPtr create(const char *s) { return create(std::string(s)); };
static ElementPtr create(const std::vector<ElementPtr>& v);
static ElementPtr create(const std::map<std::string, ElementPtr>& m);
//@}
// factory functions for wireformat
static ElementPtr fromWire(std::stringstream& in, int length);
static ElementPtr fromWire(const std::string& s);
};
/// \name Compound factory functions
class IntElement : public Element {
int i;
/// \brief These functions will parse the given string representation
/// of a compound element. If there is a parse error, an exception
/// of the type isc::data::ParseError is thrown.
public:
IntElement(int v) : Element(integer), i(v) { };
int intValue() { return i; }
bool getValue(int& t) { t = i; return true; };
bool setValue(const int v) { i = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
//@{
/// Creates an Element from the given string
/// \param in The string to parse the element from
/// \return An ElementPtr that contains the element(s) specified
/// in the given string.
static ElementPtr createFromString(const std::string& in);
/// Creates an Element from the given input stream
/// \param in The string to parse the element from
/// \return An ElementPtr that contains the element(s) specified
/// in the given input stream.
static ElementPtr createFromString(std::istream& in) throw(ParseError);
/// Creates an Element from the given input stream, where we keep
/// track of the location in the stream for error reporting.
///
/// \param in The string to parse the element from
/// \param line A reference to the int where the function keeps
/// track of the current line.
/// \param line A reference to the int where the function keeps
/// track of the current position within the current line.
/// \return An ElementPtr that contains the element(s) specified
/// in the given input stream.
// make this one private?
static ElementPtr createFromString(std::istream& in, int& line, int &pos) throw(ParseError);
//@}
//static ElementPtr create_from_xml(std::stringstream& in);
class DoubleElement : public Element {
double d;
/// \name Wire format factory functions
public:
DoubleElement(double v) : Element(real), d(v) {};
double doubleValue() { return d; }
bool getValue(double& t) { t = d; return true; };
bool setValue(const double v) { d = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
/// These function pparse the wireformat at the given stringstream
/// (of the given length). If there is a parse error an exception
/// of the type isc::cc::DecodeError is raised.
class BoolElement : public Element {
bool b;
//@{
/// Creates an Element from the wire format in the given
/// stringstream of the given length.
/// \param in The input stringstream.
/// \param length The length of the wireformat data in the stream
/// \return ElementPtr with the data that is parsed.
static ElementPtr fromWire(std::stringstream& in, int length);
/// Creates an Element from the wire format in the given string
/// \param s The input string
/// \return ElementPtr with the data that is parsed.
static ElementPtr fromWire(const std::string& s);
//@}
};
public:
BoolElement(const bool v) : Element(boolean), b(v) {};
bool boolValue() { return b; }
bool getValue(bool& t) { t = b; return true; };
bool setValue(const bool v) { b = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
class IntElement : public Element {
int i;
class StringElement : public Element {
std::string s;
public:
IntElement(int v) : Element(integer), i(v) { };
int intValue() { return i; }
bool getValue(int& t) { t = i; return true; };
bool setValue(const int v) { i = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
public:
StringElement(std::string v) : Element(string), s(v) {};
std::string stringValue() { return s; };
bool getValue(std::string& t) { t = s; return true; };
bool setValue(const std::string& v) { s = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
class DoubleElement : public Element {
double d;
class ListElement : public Element {
std::vector<ElementPtr> l;
public:
DoubleElement(double v) : Element(real), d(v) {};
double doubleValue() { return d; }
bool getValue(double& t) { t = d; return true; };
bool setValue(const double v) { d = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
public:
ListElement(std::vector<ElementPtr> v) : Element(list), l(v) {};
const std::vector<ElementPtr>& listValue() { return l; }
bool getValue(std::vector<ElementPtr>& t) { t = l; return true; };
bool setValue(const std::vector<ElementPtr>& v) { l = v; return true; };
ElementPtr get(int i) { return l.at(i); };
void set(int i, ElementPtr e) { l[i] = e; };
void add(ElementPtr e) { l.push_back(e); };
void remove(int i) { l.erase(l.begin() + i); };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
size_t size() { return l.size(); }
};
class BoolElement : public Element {
bool b;
class MapElement : public Element {
std::map<std::string, ElementPtr> m;
public:
BoolElement(const bool v) : Element(boolean), b(v) {};
bool boolValue() { return b; }
bool getValue(bool& t) { t = b; return true; };
bool setValue(const bool v) { b = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
public:
MapElement(std::map<std::string, ElementPtr> v) : Element(map), m(v) {};
const std::map<std::string, ElementPtr>& mapValue() { return m; }
bool getValue(std::map<std::string, ElementPtr>& t) { t = m; return true; };
bool setValue(std::map<std::string, ElementPtr>& v) { m = v; return true; };
ElementPtr get(const std::string& s) { return m[s]; };
void set(const std::string& s, ElementPtr p) { m[s] = p; };
void remove(const std::string& s) { m.erase(s); }
bool contains(const std::string& s) { return m.find(s) != m.end(); }
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
class StringElement : public Element {
std::string s;
//
// Encode into the CC wire format.
//
void toWire(std::ostream& ss);
public:
StringElement(std::string v) : Element(string), s(v) {};
std::string stringValue() { return s; };
bool getValue(std::string& t) { t = s; return true; };
bool setValue(const std::string& v) { s = v; return true; };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
};
// we should name the two finds better...
// find the element at id; raises TypeError if one of the
// elements at path except the one we're looking for is not a
// mapelement.
// returns an empty element if the item could not be found
ElementPtr find(const std::string& id);
class ListElement : public Element {
std::vector<ElementPtr> l;
public:
ListElement(std::vector<ElementPtr> v) : Element(list), l(v) {};
const std::vector<ElementPtr>& listValue() { return l; }
bool getValue(std::vector<ElementPtr>& t) { t = l; return true; };
bool setValue(const std::vector<ElementPtr>& v) { l = v; return true; };
ElementPtr get(int i) { return l.at(i); };
void set(size_t i, ElementPtr e) { if (i <= l.size()) {l[i] = e;} else { throw std::out_of_range("vector::_M_range_check"); } };
void add(ElementPtr e) { l.push_back(e); };
void remove(int i) { l.erase(l.begin() + i); };
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
size_t size() { return l.size(); }
};
class MapElement : public Element {
std::map<std::string, ElementPtr> m;
public:
MapElement(std::map<std::string, ElementPtr> v) : Element(map), m(v) {};
const std::map<std::string, ElementPtr>& mapValue() { return m; }
bool getValue(std::map<std::string, ElementPtr>& t) { t = m; return true; };
bool setValue(std::map<std::string, ElementPtr>& v) { m = v; return true; };
ElementPtr get(const std::string& s) { return m[s]; };
void set(const std::string& s, ElementPtr p) { m[s] = p; };
void remove(const std::string& s) { m.erase(s); }
bool contains(const std::string& s) { return m.find(s) != m.end(); }
std::string str();
std::string strXML(size_t prefix = 0);
std::string toWire(int omit_length = 1);
//
// Encode into the CC wire format.
//
void toWire(std::ostream& ss);
// we should name the two finds better...
// find the element at id; raises TypeError if one of the
// elements at path except the one we're looking for is not a
// mapelement.
// returns an empty element if the item could not be found
ElementPtr find(const std::string& id);
// find the Element at 'id', and store the element pointer in t
// returns true if found, or false if not found (either because
// it doesnt exist or one of the elements in the path is not
// a MapElement)
bool find(const std::string& id, ElementPtr& t);
};
/// Checks whether the given ElementPtr is a NULL pointer
/// \param p The ElementPtr to check
/// \return true if it is NULL, false if not.
bool isNull(ElementPtr p);
// find the Element at 'id', and store the element pointer in t
// returns true if found, or false if not found (either because
// it doesnt exist or one of the elements in the path is not
// a MapElement)
bool find(const std::string& id, ElementPtr& t);
};
bool isNull(ElementPtr p);
} }
// add a << operator for output streams so we can do
// ElementPtr foo = ...
// cout << "Element: " << foo;
///
/// \brief Insert the Element as a string into stream.
///
/// This method converts the \c ElemetPtr into a string with
/// \c Element::str() and inserts it into the
/// output stream \c out.
///
/// This function overloads the global operator<< to behave as described in
/// ostream::operator<< but applied to \c ElementPtr objects.
///
/// \param os A \c std::ostream object on which the insertion operation is
/// performed.
/// \param e The \c ElementPtr object to insert.
/// \return A reference to the same \c std::ostream object referenced by
/// parameter \c os after the insertion operation.
std::ostream& operator <<(std::ostream &out, const isc::data::ElementPtr& e);
#endif // _ISC_DATA_H

View File

@@ -49,6 +49,7 @@ main(int argc, char **argv) {
if (def.validate(data)) {
cout << "Data validated" << endl;
cout << data << endl;
} else {
cout << "Error in data validation" << endl;
}