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-rw-r--r--ACE/examples/Web_Crawler/HTTP_URL.h67
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diff --git a/ACE/examples/Web_Crawler/HTTP_URL.h b/ACE/examples/Web_Crawler/HTTP_URL.h
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+/* -*- C++ -*- */
+
+//=============================================================================
+/**
+ * @file HTTP_URL.h
+ *
+ * $Id$
+ *
+ * @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)
+#pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+/**
+ * @class HTTP_URL
+ *
+ * @brief An ADT for an HTTP URL.
+ *
+ * This class plays the "element" role in the Visitor pattern.
+ */
+class HTTP_URL : public URL
+{
+public:
+ /**
+ * 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.
+ */
+ HTTP_URL (const ACE_URL_Addr &url_addr,
+ HTTP_URL *containing_page = 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 accept (URL_Visitor *visitor);
+
+ /// Send a <GET> command to fetch the contents in the URI from the
+ /// server.
+ virtual ssize_t send_request (void);
+
+ /// Returns the URL that we represent.
+ virtual const ACE_URL_Addr &url_addr (void) const;
+
+ /// Commit suicide
+ int destroy (void);
+private:
+ /// Address of the URL we're connected to.
+ ACE_URL_Addr url_addr_;
+
+ /// Page that contained us.
+ HTTP_URL *containing_page_;
+};
+
+#endif /* _HTTP_URL_H */