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// -*- C++ -*-
// $Id$
// ============================================================================
//
// = LIBRARY
// AMI_Observer
//
// = FILENAME
// Push_Iterator_Factory_i.h
//
// = DESCRIPTION
// Header file for the push Web_Server::Iterator_Factory implementation.
//
// = AUTHOR
// Ossama Othman <ossama@uci.edu>
//
// ============================================================================
#ifndef PUSH_ITERATOR_FACTORY_I_H
#define PUSH_ITERATOR_FACTORY_I_H
#include /**/ "ace/pre.h"
#include "ace/FILE_Addr.h"
#include "ace/FILE_IO.h"
#include "Push_Web_ServerS.h"
#include "ace/OS_NS_sys_stat.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
class Push_Iterator_Factory_i :
virtual public POA_Web_Server::Iterator_Factory
{
// = TITLE
// Implement the Web_Server::Iterator_Factory interface.
//
// = DESCRIPTION
// This class is used to register a client-side <Callback> object
// with the Content Server, which is actually implemented by the
// <Callback_Handler> class for each requested file.
//
// The client invokes the register_callback() method in this
// class. That method then creates a <Callback_Handler> which
// will push chunks of data asynchronously to the client-side
// <Callback> object. This allows the Content Server to
// concurrently service multiple file requests without the need
// to explicitly use threads at the application level.
public:
Web_Server::Metadata_Type *register_callback
(const char *pathname,
Web_Server::Callback_ptr client_callback
ACE_ENV_ARG_DECL)
ACE_THROW_SPEC ((CORBA::SystemException,
Web_Server::Error_Result));
// This registration method passes a <Callback> that the Web server
// uses to ``push'' data associated with <pathname> one ``chunk'' at
// a time. The <metadata> reports information about the <pathname>.
int modification_date (ACE_stat *file_status,
Web_Server::Metadata_Type &metadata);
// Set the file modification date in the metadata structure.
int content_type (const char *filename,
Web_Server::Metadata_Type &metadata);
// Set the type of file content in the metadata structure.
private:
Web_Server::Callback_var client_callback_;
// Reference to the object that is used by the server to push chunks
// of data to the client.
};
#include /**/ "ace/post.h"
#endif /* PUSH_ITERATOR_FACTORY_I_H */
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