summaryrefslogtreecommitdiff
path: root/ACE/ACEXML/common/HttpCharStream.h
diff options
context:
space:
mode:
Diffstat (limited to 'ACE/ACEXML/common/HttpCharStream.h')
-rw-r--r--ACE/ACEXML/common/HttpCharStream.h140
1 files changed, 140 insertions, 0 deletions
diff --git a/ACE/ACEXML/common/HttpCharStream.h b/ACE/ACEXML/common/HttpCharStream.h
new file mode 100644
index 00000000000..593205bec7c
--- /dev/null
+++ b/ACE/ACEXML/common/HttpCharStream.h
@@ -0,0 +1,140 @@
+// -*- C++ -*-
+
+//=============================================================================
+/**
+ * @file HttpCharStream.h
+ *
+ * $Id$
+ *
+ * @author Krishnakumar B <kitty@cs.wustl.edu>
+ */
+//=============================================================================
+
+#ifndef _ACEXML_HTTPCHARSTREAM_H_
+#define _ACEXML_HTTPCHARSTREAM_H_
+
+#include /**/ "ace/pre.h"
+#include "ACEXML/common/ACEXML_Export.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+#pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "ACEXML/common/CharStream.h"
+#include "ACEXML/common/URL_Addr.h"
+#include "ACEXML/common/Mem_Map_Stream.h"
+
+/**
+ * @class ACEXML_HttpCharStream HttpCharStream.h "ACEXML/common/HttpCharStream.h"
+ *
+ * An implementation of ACEXML_CharStream for reading input from a URL.
+ */
+class ACEXML_Export ACEXML_HttpCharStream : public ACEXML_CharStream
+{
+public:
+ /// Default constructor.
+ ACEXML_HttpCharStream (void);
+
+ /// Destructor
+ virtual ~ACEXML_HttpCharStream (void);
+
+ /// Open an URL.
+ int open (const ACEXML_Char *url);
+
+ /**
+ * Returns the available ACEXML_Char in the buffer. -1
+ * if the object is not initialized properly.
+ */
+ virtual int available (void);
+
+ /**
+ * Close this stream and release all resources used by it.
+ */
+ virtual int close (void);
+
+ /**
+ * Read the next ACEXML_Char. Return -1 if we are not able to
+ * return an ACEXML_Char, 0 if EOS is reached, or 1 if succeed.
+ */
+ virtual int get (ACEXML_Char& ch);
+
+ /**
+ * Read the next batch of ACEXML_Char strings
+ */
+ virtual int read (ACEXML_Char *str, size_t len);
+
+ /**
+ * Peek the next ACEXML_Char in the CharStream. Return the
+ * character if succeess, -1 if EOS is reached.
+ */
+ virtual int peek (void);
+
+ /**
+ * Resets the file pointer to the beginning of the stream.
+ */
+ virtual void rewind (void);
+
+ /**
+ * Determine the encoding of the file.
+ */
+ virtual int determine_encoding (void);
+
+ /**
+ * Get the encoding of the file
+ */
+ virtual const ACEXML_Char* getEncoding (void);
+
+ /*
+ * Get the systemId for the underlying CharStream
+ */
+ virtual const ACEXML_Char* getSystemId (void);
+
+
+private:
+
+#if defined (ACE_USES_WCHAR)
+ /**
+ * Read the next character from the stream taking into account the
+ * encoding of the file.
+ */
+ int get_i (ACEXML_Char& ch);
+
+ /**
+ * Read the next character from the stream taking into account the
+ * encoding of the file. Subsequent call to get() returns this
+ * character.
+ */
+ int peek_i (void);
+
+#endif /* ACE_USES_WCHAR */
+
+ /**
+ * Send a HTTP/1.1 request to fetch the contents of the URL.
+ */
+ int send_request (void);
+
+ /**
+ * Fetch the URL and save it in backing store.
+ */
+ int get_url (size_t& len);
+
+ ACEXML_Char *url_;
+
+ ACEXML_URL_Addr* url_addr_;
+
+ ACEXML_Mem_Map_Stream* stream_;
+
+ Connector* connector_;
+
+ ACE_OFF_T size_;
+
+ ACE_OFF_T data_offset_;
+
+ ACEXML_Char* encoding_;
+
+};
+
+
+#include /**/ "ace/post.h"
+
+#endif /* _ACEXML_HTTPCHARSTREAM_H_ */