From 40211cd5598c5349358e1d33b6353a4c729b17b3 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Thu, 9 Aug 2012 11:24:11 +0200
Subject: Added SessionHeaderParser for faster session xml file content
 searching.

---
 server/src/sessionheaderparser.h | 96 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 server/src/sessionheaderparser.h

(limited to 'server/src/sessionheaderparser.h')

diff --git a/server/src/sessionheaderparser.h b/server/src/sessionheaderparser.h
new file mode 100644
index 0000000..a56215a
--- /dev/null
+++ b/server/src/sessionheaderparser.h
@@ -0,0 +1,96 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ *            sessionheaderparser.h
+ *
+ *  Thu Aug  9 09:06:32 CEST 2012
+ *  Copyright 2012 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of Pracro.
+ *
+ *  Pracro is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Pracro is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with Pracro; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#ifndef __PRACRO_SESSIONHEADERPARSER_H__
+#define __PRACRO_SESSIONHEADERPARSER_H__
+
+#include "saxparser.h"
+
+/**
+ * Partial session parser.
+ * This class is used to parse only the first tag of a session xml file.
+ * The parser will run about 10 times faster than the one parsing the entire
+ * file (see the SessionParser class) and can be used to find a
+ * patientid/template match.
+ * This class inherits the SAXParser baseclass.
+ * Use the parse() method to run the parser, and collect the result via the
+ * getPatientID() and getTemplate() methods.
+ * If the file does not contain a session, or the file is not a valid xml file,
+ * an Exception is thrown.
+ */
+class SessionHeaderParser : public SAXParser {
+public:
+  /**
+   * Constructor.
+   * @param sessionfile A std::string containing the name of the file to parse.
+   */
+  SessionHeaderParser(std::string sessionfile);
+
+  /**
+   * Destructor.
+   */
+  ~SessionHeaderParser();
+
+  /**
+   * Overloaded parser callback method.
+   */
+  void startTag(std::string name, attributes_t &attr);
+
+  /**
+   * Overloaded parser callback method.
+   */
+  void parseError(const char *buf, size_t len, std::string error, int lineno);
+
+  /**
+   * Get a pointer to the parsed macro.
+   * NOTE: The allocated memory for the macro is owned by the parser, and will be
+   * freed upon parser deletion.
+   * @return A pointer to the macro or NULL on error.
+   */
+  std::string getPatientID();
+  std::string getTemplate();
+
+protected:
+  /**
+   * Overloaded parser callback method.
+   */
+  int readData(char *data, size_t size);
+
+private:
+  int fd;
+
+  bool done;
+ 
+  std::string patientid;
+  std::string templ;
+
+  std::string file;
+  // Error callback function.
+  void error(const char* fmt, ...);
+};
+
+#endif/*__PRACRO_SESSIONHEADERPARSER_H__*/
-- 
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