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//
// libavg - Media Playback Engine.
// Copyright (C) 2003-2014 Ulrich von Zadow
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Current versions can be found at www.libavg.de
//
// Original author of this file is Nick Hebner (hebnern@gmail.com).
//
#include "TypeRegistry.h"
#include "TypeDefinition.h"
#include "../base/MathHelper.h"
#include "../base/Exception.h"
#include <set>
using namespace std;
namespace avg {
TypeRegistry* TypeRegistry::s_pInstance = 0;
TypeRegistry::TypeRegistry()
{
}
TypeRegistry::~TypeRegistry()
{
}
TypeRegistry* TypeRegistry::get()
{
if (!s_pInstance) {
s_pInstance = new TypeRegistry();
}
return s_pInstance;
}
void TypeRegistry::registerType(const TypeDefinition& def, const char* pParentNames[])
{
m_TypeDefs.insert(TypeDefMap::value_type(def.getName(), def));
if (pParentNames) {
string sChildArray[1];
sChildArray[0] = def.getName();
vector<string> sChildren = vectorFromCArray(1, sChildArray);
const char **ppCurParentName = pParentNames;
while (*ppCurParentName) {
TypeDefinition def = getTypeDef(*ppCurParentName);
def.addChildren(sChildren);
updateDefinition(def);
++ppCurParentName;
}
}
}
void TypeRegistry::updateDefinition(const TypeDefinition& def)
{
m_TypeDefs[def.getName()] = def;
}
ExportedObjectPtr TypeRegistry::createObject(const string& sType,
const xmlNodePtr xmlNode)
{
const TypeDefinition& def = getTypeDef(sType);
ArgList args(def.getDefaultArgs(), xmlNode);
ObjectBuilder builder = def.getBuilder();
ExportedObjectPtr pObj = builder(args);
pObj->setTypeInfo(&def);
return pObj;
}
ExportedObjectPtr TypeRegistry::createObject(const string& sType, const py::dict& pyDict)
{
const TypeDefinition& def = getTypeDef(sType);
py::dict effParams;
effParams = pyDict;
ArgList args(def.getDefaultArgs(), effParams);
ObjectBuilder builder = def.getBuilder();
ExportedObjectPtr pObj = builder(args);
pObj->setTypeInfo(&def);
return pObj;
}
string TypeRegistry::getDTD() const
{
if (m_TypeDefs.empty()) {
return string("");
}
stringstream ss;
for (TypeDefMap::const_iterator defIt = m_TypeDefs.begin();
defIt != m_TypeDefs.end(); defIt++)
{
const TypeDefinition& def = defIt->second;
if (!def.isAbstract()) {
writeTypeDTD(def, ss);
}
}
for (TypeDefMap::const_iterator defIt = m_TypeDefs.begin();
defIt != m_TypeDefs.end(); defIt++)
{
const TypeDefinition& def = defIt->second;
if (!def.isAbstract()) {
ss << def.getDTDElements();
}
}
return ss.str();
}
TypeDefinition& TypeRegistry::getTypeDef(const string& sType)
{
TypeDefMap::iterator it = m_TypeDefs.find(sType);
if (it == m_TypeDefs.end()) {
throw (Exception (AVG_ERR_XML_NODE_UNKNOWN,
string("Unknown node type ") + sType + " encountered."));
}
return it->second;
}
void TypeRegistry::writeTypeDTD(const TypeDefinition& def, stringstream& ss) const
{
ss << "<!ELEMENT " << def.getName() << " " << def.getDTDChildrenString() << " >\n";
if (!def.getDefaultArgs().getArgMap().empty()) {
ss << "<!ATTLIST " << def.getName();
for (ArgMap::const_iterator argIt = def.getDefaultArgs().getArgMap().begin();
argIt != def.getDefaultArgs().getArgMap().end(); argIt++)
{
string argName = argIt->first;
string argType = (argName == "id") ? "ID" : "CDATA";
string argRequired = def.getDefaultArgs().getArg(argName)->isRequired() ?
"#REQUIRED" : "#IMPLIED";
ss << "\n " << argName << " " << argType << " " << argRequired;
}
ss << " >\n";
}
}
}
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