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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// examples/Web_Crawler
//
// = FILENAME
// URL.h
//
// = AUTHOR
// Douglas C. Schmidt <schmidt@cs.wustl.edu>
//
// ============================================================================
#ifndef _URL_H
#define _URL_H
#include "Mem_Map_Stream.h"
#include "URL_Addr.h"
#include "URL_Status.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#define ACE_LACKS_PRAGMA_ONCE
#endif /* ACE_LACKS_PRAGMA_ONCE */
// Forward declaration.
class URL_Visitor;
class URL
{
// = TITLE
// Base class for a URL.
//
// = DESCRIPTION
// This class plays a role in the Visitor pattern.
public:
virtual ~URL (void);
// Destructor.
virtual int accept (URL_Visitor *visitor) = 0;
// Accept the visitor, which will then perform a particular
// visitation strategy on the URL. This method is part of the
// Visitor pattern.
virtual int send_request (void) = 0;
// Send a <GET> command to fetch the contents in the URI from the
// server.
virtual const ACE_URL_Addr &url_addr (void) const = 0;
// Returns the URL that we represent.
virtual Mem_Map_Stream &stream (void);
// Returns the <Mem_Map_Stream>.
// = Get/set the reply status.
virtual const URL_Status &reply_status (void);
virtual void reply_status (const URL_Status &);
// = Get/set the reply status.
virtual const ACE_CString &content_type (void);
virtual void content_type (const ACE_CString &);
private:
URL_Status reply_status_;
// Reply status of the URL.
ACE_CString content_type_;
// Content-type of the URL.
Mem_Map_Stream stream_;
// Contents of the stream.
};
#endif /* _URL_H */
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