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//
// XMLConfiguration.cpp
//
// $Id: //poco/Main/Util/src/XMLConfiguration.cpp#6 $
//
// Library: Util
// Package: Configuration
// Module: XMLConfiguration
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
#include "Poco/Util/XMLConfiguration.h"
#include "Poco/SAX/InputSource.h"
#include "Poco/DOM/DOMParser.h"
#include "Poco/DOM/Element.h"
#include "Poco/DOM/Attr.h"
#include "Poco/Exception.h"
#include "Poco/NumberParser.h"
#include "Poco/NumberFormatter.h"
#include <set>
namespace Poco {
namespace Util {
XMLConfiguration::XMLConfiguration()
{
}
XMLConfiguration::XMLConfiguration(Poco::XML::InputSource* pInputSource)
{
load(pInputSource);
}
XMLConfiguration::XMLConfiguration(std::istream& istr)
{
load(istr);
}
XMLConfiguration::XMLConfiguration(const std::string& path)
{
load(path);
}
XMLConfiguration::XMLConfiguration(const Poco::XML::Document* pDocument)
{
load(pDocument);
}
XMLConfiguration::XMLConfiguration(const Poco::XML::Node* pNode)
{
load(pNode);
}
XMLConfiguration::~XMLConfiguration()
{
}
void XMLConfiguration::load(Poco::XML::InputSource* pInputSource)
{
poco_check_ptr (pInputSource);
Poco::XML::DOMParser parser;
parser.setFeature(Poco::XML::XMLReader::FEATURE_NAMESPACES, false);
parser.setFeature(Poco::XML::DOMParser::FEATURE_WHITESPACE, true);
Poco::XML::AutoPtr<Poco::XML::Document> pDoc = parser.parse(pInputSource);
load(pDoc);
}
void XMLConfiguration::load(std::istream& istr)
{
Poco::XML::InputSource src(istr);
load(&src);
}
void XMLConfiguration::load(const std::string& path)
{
Poco::XML::InputSource src(path);
load(&src);
}
void XMLConfiguration::load(const Poco::XML::Document* pDocument)
{
poco_check_ptr (pDocument);
_pDocument = Poco::XML::AutoPtr<Poco::XML::Document>(const_cast<Poco::XML::Document*>(pDocument), true);
_pRoot = Poco::XML::AutoPtr<Poco::XML::Node>(pDocument->documentElement(), true);
}
void XMLConfiguration::load(const Poco::XML::Node* pNode)
{
poco_check_ptr (pNode);
if (pNode->nodeType() == Poco::XML::Node::DOCUMENT_NODE)
{
load(static_cast<const Poco::XML::Document*>(pNode));
}
else
{
_pDocument = Poco::XML::AutoPtr<Poco::XML::Document>(pNode->ownerDocument(), true);
_pRoot = Poco::XML::AutoPtr<Poco::XML::Node>(const_cast<Poco::XML::Node*>(pNode), true);
}
}
bool XMLConfiguration::getRaw(const std::string& key, std::string& value) const
{
const Poco::XML::Node* pNode = findNode(key);
if (pNode)
{
value = pNode->innerText();
return true;
}
else return false;
}
void XMLConfiguration::setRaw(const std::string& key, const std::string& value)
{
throw Poco::NotImplementedException("Setting a property in an XMLConfiguration");
}
void XMLConfiguration::enumerate(const std::string& key, Keys& range) const
{
using Poco::NumberFormatter;
std::multiset<std::string> keys;
const Poco::XML::Node* pNode = findNode(key);
if (pNode)
{
const Poco::XML::Node* pChild = pNode->firstChild();
while (pChild)
{
if (pChild->nodeType() == Poco::XML::Node::ELEMENT_NODE)
{
const std::string& nodeName = pChild->nodeName();
int n = (int) keys.count(nodeName);
if (n)
range.push_back(nodeName + "[" + NumberFormatter::format(n) + "]");
else
range.push_back(nodeName);
keys.insert(nodeName);
}
pChild = pChild->nextSibling();
}
}
}
const Poco::XML::Node* XMLConfiguration::findNode(const std::string& key) const
{
std::string::const_iterator it = key.begin();
return findNode(it, key.end(), _pRoot);
}
const Poco::XML::Node* XMLConfiguration::findNode(std::string::const_iterator& it, const std::string::const_iterator& end, const Poco::XML::Node* pNode)
{
if (pNode && it != end)
{
if (*it == '[')
{
++it;
if (it != end && *it == '@')
{
++it;
std::string attr;
while (it != end && *it != ']') attr += *it++;
if (it != end) ++it;
return findAttribute(attr, pNode);
}
else
{
std::string index;
while (it != end && *it != ']') index += *it++;
if (it != end) ++it;
return findNode(it, end, findElement(Poco::NumberParser::parse(index), pNode));
}
}
else
{
while (it != end && *it == '.') ++it;
std::string key;
while (it != end && *it != '.' && *it != '[') key += *it++;
return findNode(it, end, findElement(key, pNode));
}
}
else return pNode;
}
const Poco::XML::Node* XMLConfiguration::findElement(const std::string& name, const Poco::XML::Node* pNode)
{
const Poco::XML::Node* pChild = pNode->firstChild();
while (pChild)
{
if (pChild->nodeType() == Poco::XML::Node::ELEMENT_NODE && pChild->nodeName() == name)
return pChild;
pChild = pChild->nextSibling();
}
return 0;
}
const Poco::XML::Node* XMLConfiguration::findElement(int index, const Poco::XML::Node* pNode)
{
const Poco::XML::Node* pRefNode = pNode;
if (index > 0)
{
pNode = pNode->nextSibling();
while (pNode)
{
if (pNode->nodeName() == pRefNode->nodeName())
{
if (--index == 0) break;
}
pNode = pNode->nextSibling();
}
}
return pNode;
}
const Poco::XML::Node* XMLConfiguration::findAttribute(const std::string& name, const Poco::XML::Node* pNode)
{
const Poco::XML::Element* pElem = dynamic_cast<const Poco::XML::Element*>(pNode);
if (pElem)
return pElem->getAttributeNode(name);
else
return 0;
}
} } // namespace Poco::Util