icinga2/lib/base/dynamictype.cpp

140 lines
4.1 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "base/dynamictype.h"
#include "base/serializer.h"
#include "base/debug.h"
#include "base/objectlock.h"
using namespace icinga;
DynamicType::DynamicType(const String& name)
: m_Name(name)
{ }
DynamicType::Ptr DynamicType::GetByName(const String& name)
{
boost::mutex::scoped_lock lock(GetStaticMutex());
DynamicType::TypeMap::const_iterator tt = InternalGetTypeMap().find(name);
if (tt == InternalGetTypeMap().end()) {
const Type *type = Type::GetByName(name);
if (!type || !Type::GetByName("DynamicObject")->IsAssignableFrom(type)
|| type->IsAbstract())
return DynamicType::Ptr();
DynamicType::Ptr dtype = make_shared<DynamicType>(name);
InternalGetTypeMap()[type->GetName()] = dtype;
InternalGetTypeVector().push_back(dtype);
return dtype;
}
return tt->second;
}
/**
* Note: Caller must hold DynamicType::GetStaticMutex() while using the map.
*/
DynamicType::TypeMap& DynamicType::InternalGetTypeMap(void)
{
static DynamicType::TypeMap typemap;
return typemap;
}
DynamicType::TypeVector& DynamicType::InternalGetTypeVector(void)
{
static DynamicType::TypeVector typevector;
return typevector;
}
DynamicType::TypeVector DynamicType::GetTypes(void)
{
boost::mutex::scoped_lock lock(GetStaticMutex());
return InternalGetTypeVector(); /* Making a copy of the vector here. */
}
std::pair<DynamicTypeIterator<DynamicObject>, DynamicTypeIterator<DynamicObject> > DynamicType::GetObjects(void)
{
return std::make_pair(
DynamicTypeIterator<DynamicObject>(GetSelf(), 0),
DynamicTypeIterator<DynamicObject>(GetSelf(), -1)
);
}
String DynamicType::GetName(void) const
{
return m_Name;
}
void DynamicType::RegisterObject(const DynamicObject::Ptr& object)
{
String name = object->GetName();
{
ObjectLock olock(this);
ObjectMap::iterator it = m_ObjectMap.find(name);
if (it != m_ObjectMap.end()) {
if (it->second == object)
return;
BOOST_THROW_EXCEPTION(std::runtime_error("RegisterObject() found existing object with the same name: " + name));
}
m_ObjectMap[name] = object;
m_ObjectVector.push_back(object);
}
}
DynamicObject::Ptr DynamicType::GetObject(const String& name) const
{
ObjectLock olock(this);
DynamicType::ObjectMap::const_iterator nt = m_ObjectMap.find(name);
if (nt == m_ObjectMap.end())
return DynamicObject::Ptr();
return nt->second;
}
DynamicObject::Ptr DynamicType::CreateObject(const Dictionary::Ptr& serializedUpdate)
{
ASSERT(!OwnsLock());
const Type *type = Type::GetByName(m_Name);
Object::Ptr object = type->Instantiate();
Deserialize(object, serializedUpdate, false, FAConfig);
return static_pointer_cast<DynamicObject>(object);
}
boost::mutex& DynamicType::GetStaticMutex(void)
{
static boost::mutex mutex;
return mutex;
}