/usr/include/xmltooling/PluginManager.h is in libxmltooling-dev 1.4.2-1.
This file is owned by root:root, with mode 0o644.
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* Licensed to the University Corporation for Advanced Internet
* Development, Inc. (UCAID) under one or more contributor license
* agreements. See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
*
* UCAID licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the
* License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the License.
*/
/**
* @file xmltooling/PluginManager.h
*
* Plugin management template
*/
#ifndef __xmltooling_plugin_h__
#define __xmltooling_plugin_h__
#include <xmltooling/base.h>
#include <xmltooling/exceptions.h>
#include <map>
#include <string>
#if defined (_MSC_VER)
#pragma warning( push )
#pragma warning( disable : 4250 4251 )
#endif
namespace xmltooling {
/**
* Template for management/access to plugins constructed based on a Key type
* and arbitrary parameters.
*
* @param T class of plugin to manage
* @param Key the key for type lookup
* @param Params parameters for plugin construction
*/
template <class T, class Key, typename Params> class PluginManager
{
public:
PluginManager() {}
~PluginManager() {}
/** Factory function for plugin. */
typedef T* Factory(const Params&);
/**
* Registers the factory for a given type.
*
* @param type the key to the plugin type
* @param factory the factory function for the plugin type
*/
void registerFactory(const Key& type, typename PluginManager::Factory* factory) {
if (factory)
m_map[type]=factory;
}
/**
* Unregisters the factory for a given type.
*
* @param type the key to the plugin type
*/
void deregisterFactory(const Key& type) {
m_map.erase(type);
}
/**
* Unregisters all registered factories.
*/
void deregisterFactories() {
m_map.clear();
}
/**
* Builds a new instance of a plugin of a given type, configuring it
* with the supplied parameters.
*
* @param type the key to the plugin type
* @param p parameters to configure plugin
* @return the constructed plugin
*/
T* newPlugin(const Key& type, const Params& p) {
typename std::map<Key, typename PluginManager::Factory*>::const_iterator i=m_map.find(type);
if (i==m_map.end())
throw UnknownExtensionException("Unknown plugin type.");
return i->second(p);
}
private:
std::map<Key, typename PluginManager::Factory*> m_map;
};
};
#if defined (_MSC_VER)
#pragma warning( pop )
#endif
#endif /* __xmltooling_plugin_h__ */
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