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/* -*- C++ -*- */
// $Id$
// ============================================================================
//
// = LIBRARY
// examples/Web_Crawler
//
// = FILENAME
// HTTP_URL.h
//
// = AUTHOR
// Douglas C. Schmidt <schmidt@cs.wustl.edu>
//
// ============================================================================
#ifndef _HTTP_URL_H
#define _HTTP_URL_H
#include "URL_Status.h"
#include "URL.h"
#include "Options.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
#define ACE_LACKS_PRAGMA_ONCE
#endif /* ACE_LACKS_PRAGMA_ONCE */
class HTTP_URL : public URL
{
// = TITLE
// An ADT for an HTTP URL.
//
// = DESCRIPTION
// This class plays the "element" role in the Visitor pattern.
public:
HTTP_URL (const ACE_URL_Addr &url_addr,
HTTP_URL *containing_page = 0);
// The <url_addr> is the URL that we're going to be visiting. We
// also keep track of the containing page, if any, which is used to
// print out more meaningful messages.
virtual int accept (URL_Visitor *visitor);
// 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);
// Send a <GET> command to fetch the contents in the URI from the
// server.
virtual const ACE_URL_Addr &url_addr (void) const;
// Returns the URL that we represent.
int destroy (void);
// Commit suicide
private:
ACE_URL_Addr url_addr_;
// Address of the URL we're connected to.
HTTP_URL *containing_page_;
// Page that contained us.
};
#endif /* _HTTP_URL_H */
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