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260 lines (202 loc) · 4.1 KB
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//
// Array.cpp
//
// Library: JSON
// Package: JSON
// Module: Array
//
// Copyright (c) 2012, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/JSON/Array.h"
#include "Poco/JSON/Object.h"
#include "Poco/JSON/Stringifier.h"
using Poco::Dynamic::Var;
namespace Poco {
namespace JSON {
Array::Array(): _modified(false)
{
}
Array::Array(const Array& other) : _values(other._values),
_pArray(other._pArray),
_modified(other._modified)
{
}
Array::Array(Array&& other) :
_values(std::move(other._values)),
_pArray(!other._modified ? other._pArray : 0),
_modified(other._modified)
{
_pArray = 0;
}
Array &Array::operator=(const Array& other)
{
if (&other != this)
{
_values = other._values;
_pArray = other._pArray;
_modified = other._modified;
}
return *this;
}
Array &Array::operator= (Array&& other)
{
if (&other != this)
{
_values = std::move(other._values);
_pArray = other._pArray;
other._pArray = 0;
_modified = other._modified;
}
return *this;
}
Array::~Array()
{
}
Var Array::get(unsigned int index) const
{
Var value;
try
{
value = _values.at(index);
}
catch (std::out_of_range&)
{
//Ignore, we return an empty value
}
return value;
}
Array::Ptr Array::getArray(unsigned int index) const
{
Array::Ptr result;
Var value = get(index);
if (value.type() == typeid(Array::Ptr))
{
result = value.extract<Array::Ptr>();
}
return result;
}
Object::Ptr Array::getObject(unsigned int index) const
{
Object::Ptr result;
Var value = get(index);
if (value.type() == typeid(Object::Ptr))
{
result = value.extract<Object::Ptr>();
}
return result;
}
bool Array::isNull(unsigned int index) const
{
if (index < _values.size())
{
Dynamic::Var value = _values[index];
return value.isEmpty();
}
return true;
}
bool Array::isObject(unsigned int index) const
{
Var value = get(index);
return isObject(value);
}
bool Array::isObject(const Dynamic::Var& value) const
{
return value.type() == typeid(Object::Ptr);
}
bool Array::isObject(ConstIterator& it) const
{
return it!= end() && isObject(*it);
}
void Array::stringify(std::ostream& out, unsigned int indent, int step) const
{
if (step == -1) step = indent;
out << "[";
if (indent > 0) out << std::endl;
for (ValueVec::const_iterator it = _values.begin(); it != _values.end();)
{
for (int i = 0; i < indent; i++) out << ' ';
Stringifier::stringify(*it, out, indent + step, step);
if (++it != _values.end())
{
out << ",";
if (step > 0) out << '\n';
}
}
if (step > 0) out << '\n';
if (indent >= step) indent -= step;
for (int i = 0; i < indent; i++)
out << ' ';
out << "]";
}
void Array::resetDynArray() const
{
if (!_pArray)
_pArray = new Poco::Dynamic::Array;
else
_pArray->clear();
}
Array::operator const Poco::Dynamic::Array& () const
{
if (!_values.size())
{
resetDynArray();
}
else if (_modified)
{
ValueVec::const_iterator it = _values.begin();
ValueVec::const_iterator end = _values.end();
resetDynArray();
int index = 0;
for (; it != end; ++it, ++index)
{
if (isObject(it))
{
_pArray->insert(_pArray->end(), Poco::JSON::Object::makeStruct(getObject(index)));
}
else if (isArray(it))
{
_pArray->insert(_pArray->end(), makeArray(getArray(index)));
}
else
{
_pArray->insert(_pArray->end(), *it);
}
}
_modified = false;
}
return *_pArray;
}
Poco::Dynamic::Array Array::makeArray(const JSON::Array::Ptr& arr)
{
Poco::Dynamic::Array vec;
JSON::Array::ConstIterator it = arr->begin();
JSON::Array::ConstIterator end = arr->end();
int index = 0;
for (; it != end; ++it, ++index)
{
if (arr->isObject(it))
{
Object::Ptr pObj = arr->getObject(index);
DynamicStruct str = Poco::JSON::Object::makeStruct(pObj);
vec.insert(vec.end(), str);
}
else if (arr->isArray(it))
{
Array::Ptr pArr = arr->getArray(index);
std::vector<Poco::Dynamic::Var> v = makeArray(pArr);
vec.insert(vec.end(), v);
}
else
vec.insert(vec.end(), *it);
}
return vec;
}
void Array::clear()
{
_values.clear();
_pArray = 0;
}
} } // namespace Poco::JSON