mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-04 21:42:39 +00:00
82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
//
|
|
// EntityResolverImpl.h
|
|
//
|
|
// Library: XML
|
|
// Package: SAX
|
|
// Module: SAX
|
|
//
|
|
// An implementation of EntityResolver.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef SAX_EntityResolverImpl_INCLUDED
|
|
#define SAX_EntityResolverImpl_INCLUDED
|
|
|
|
|
|
#include "Poco/SAX/EntityResolver.h"
|
|
#include "Poco/URIStreamOpener.h"
|
|
#include "Poco/XML/XML.h"
|
|
#include "Poco/XML/XMLString.h"
|
|
|
|
|
|
namespace Poco
|
|
{
|
|
namespace XML
|
|
{
|
|
|
|
|
|
class XML_API EntityResolverImpl : public EntityResolver
|
|
/// A default implementation of the EntityResolver interface.
|
|
///
|
|
/// The system ID is first interpreted as an URI and the
|
|
/// URIStreamOpener is used to create and open an istream
|
|
/// for an InputSource.
|
|
///
|
|
/// If the system ID is not a valid URI, it is
|
|
/// interpreted as a filesystem path and a Poco::FileInputStream
|
|
/// is opened for it.
|
|
{
|
|
public:
|
|
EntityResolverImpl();
|
|
/// Creates an EntityResolverImpl that uses the default
|
|
/// URIStreamOpener.
|
|
|
|
EntityResolverImpl(const Poco::URIStreamOpener & opener);
|
|
/// Creates an EntityResolverImpl that uses the given
|
|
/// URIStreamOpener.
|
|
|
|
~EntityResolverImpl();
|
|
/// Destroys the EntityResolverImpl.
|
|
|
|
InputSource * resolveEntity(const XMLString * publicId, const XMLString & systemId);
|
|
/// Tries to use the URIStreamOpener to create and open an istream
|
|
/// for the given systemId, which is interpreted as an URI.
|
|
///
|
|
/// If the systemId is not a valid URI, it is interpreted as
|
|
/// a local filesystem path and a Poco::FileInputStream is opened for it.
|
|
|
|
void releaseInputSource(InputSource * pSource);
|
|
/// Deletes the InputSource's stream.
|
|
|
|
protected:
|
|
std::istream * resolveSystemId(const XMLString & systemId);
|
|
|
|
private:
|
|
EntityResolverImpl(const EntityResolverImpl &);
|
|
EntityResolverImpl & operator=(const EntityResolverImpl &);
|
|
|
|
const Poco::URIStreamOpener & _opener;
|
|
};
|
|
|
|
|
|
}
|
|
} // namespace Poco::XML
|
|
|
|
|
|
#endif // SAX_EntityResolverImpl_INCLUDED
|