- added global_preferences_serielizer

- TO DO - test-program not finished



git-svn-id: svn://svn.gna.org/svn/sgpemv2/trunk@730 3ecf2c5c-341e-0410-92b4-d18e462d057c

src/backend/global_preferences.hh

@@ -41,6 +41,7 @@ namespace sgpem
   class SG_DLLEXPORT GlobalPreferences : public Singleton<GlobalPreferences>
   {
     friend class Singleton<GlobalPreferences>;
+    friend class GlobalPreferencesSerializer;
 
   public:
     typedef std::vector<Glib::ustring>::const_iterator dir_iterator;

src/backend/global_preferences_serializer.cc

@@ -0,0 +1,128 @@
+// src/global_preferences.cc - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+#include "config.h"
+#include "key_file.hh"
+#include "global_preferences_serializer.hh"
+#include <sstream>
+
+namespace sgpem
+{
+
+  GlobalPreferencesSerializer::GlobalPreferencesSerializer(GlobalPreferences &gp)
+    : _globalPreferences(gp)
+  {}
+  
+  
+  
+  void
+  GlobalPreferencesSerializer::file_read(const Glib::ustring& filename)
+  {
+    _globalPreferences._mod_dirs.clear();
+    _globalPreferences._pol_dirs.clear();
+    KeyFile::file_read(filename);
+    // read modules directories
+    {
+      const Glib::ustring* val = search_value(Glib::ustring("modules-dir-number"));
+      if(val)
+      {
+        std::istringstream istr(val->c_str());
+        int n;
+        istr >> n;
+        for(int i=1; i<=n; i++)
+        {
+          std::ostringstream ostr;
+          ostr << "modules-dir-" << i << std::ends;
+          Glib::ustring key(ostr.str());
+          val = search_value(key);
+          if(val)
+          {
+            _globalPreferences.add_modules_dir(*val);
+          }
+        }
+      }
+    }
+
+    // read policies directories
+    {
+      const Glib::ustring* val = search_value(Glib::ustring("policies-dir-number"));
+      if(val)
+      {
+        std::istringstream istr(val->c_str());
+        int n;
+        istr >> n;
+        for(int i=1; i<=n; i++)
+        {
+          std::ostringstream ostr;
+          ostr << "policies-dir-" << i << std::ends;
+          Glib::ustring key(ostr.str());
+          val = search_value(key);
+          if(val)
+          {
+            _globalPreferences.add_policies_dir(*val);
+          }
+        }
+      }
+    }
+  }
+  
+  void
+  GlobalPreferencesSerializer::file_write(const Glib::ustring& filename)
+  {
+    // add modules directories
+    {
+      GlobalPreferences::dir_iterator iter=_globalPreferences.modules_dir_begin();
+      int n=0;
+      while(iter!=_globalPreferences.modules_dir_end()){
+        std::ostringstream ostr;
+        n++;
+        ostr << "modules-dir-" << n << std::ends;
+        Glib::ustring key(ostr.str());
+        insert_key_value(key, (*iter));
+        ++iter;
+      }
+      Glib::ustring key("modules-dir-number");
+      std::ostringstream ostr;
+      ostr << n << std::ends;
+      Glib::ustring value(ostr.str());
+      insert_key_value(key, value);
+    }
+    // add policies directories
+    {
+      GlobalPreferences::dir_iterator iter=_globalPreferences.policies_dir_begin();
+      int n=0;
+      while(iter!=_globalPreferences.policies_dir_end()){
+        std::ostringstream ostr;
+        n++;
+        ostr << "policies-dir-" << n << std::ends;
+        Glib::ustring key(ostr.str());
+        insert_key_value(key, (*iter));
+        ++iter;
+      }
+      Glib::ustring key("policies-dir-number");
+      std::ostringstream ostr;
+      ostr << n << std::ends;
+      Glib::ustring value(ostr.str());
+      insert_key_value(key, value);
+    }
+    
+    KeyFile::file_write(filename);
+  }
+}

src/backend/global_preferences_serializer.hh

@@ -0,0 +1,62 @@
+// src/backend/key_file.hh - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+#ifndef GLOBAL_PREFERENCES_SERIALIZER_HH
+#define GLOBAL_PREFERENCES_SERIALIZER_HH 1
+
+#include "global_preferences.hh"
+#include "key_file.hh"
+
+namespace sgpem
+{
+  class GlobalPreferencesSerializer;
+
+
+  
+  /** \brief Save and retrieve global preferences formatted as key=value rows.
+   *
+   * This class handles files to store and retrieve global preferences
+   * in the form of: key=value rows.
+   *
+   */
+  class SG_DLLEXPORT GlobalPreferencesSerializer : public KeyFile
+  {
+
+  public:
+    /** \brief Object constructor */
+    GlobalPreferencesSerializer(GlobalPreferences &gp);
+
+    /** \brief Read a file into this object.
+     *
+     * \param filename The file to read from.
+     */
+    void file_read(const Glib::ustring& filename);
+
+    /** \brief Write a file from this object.
+     *
+     * \param filename The file to write to.
+     */
+    void file_write(const Glib::ustring& filename);
+  private:
+    GlobalPreferences& _globalPreferences;
+  };
+}
+
+#endif

src/testsuite/test-global_preferences_serializer.cc

@@ -0,0 +1,75 @@
+// src/testsuite/test-stepforward.cc - Copyright 2005, 2006, University
+//               of Padova, dept. of Pure and Applied
+//               Mathematics
+//
+// This file is part of SGPEMv2.
+//
+// This 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.
+//
+// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+/* This executable tests for workingness of the save preferences method,
+ * and nothing else. */
+
+#include "config.h"
+#include "glibmm/ustring.h"
+#include "backend/global_preferences_serializer.hh"
+#include <iostream>
+#include <sstream>
+
+
+
+// from here and further until the bottom, all to throw away I suppose
+
+int
+main(int argc, char** argv) {
+  
+  using namespace sgpem;
+  using Glib::ustring;
+  using std::cout;
+  using std::endl;
+  
+  if(argc<2)
+  {
+    cout << "GlobalPreferencesSerializer class test program" << endl;
+    cout << "Syntax: test-global_preferences_serializer filename [mod1 mod2 ...][% pol1 pol2 ...]" << endl << endl;
+    cout << "This test add modules directories (mod1 mod2 ...) and modules directories (mod1 mod2 ...)"
+	<< endl
+ 	<< "to GlobalPreferences, write it to the file \"filename\", read it and compare." << endl;
+    cout << "NOTE: 1) Test fails with invalid filenames." << endl;
+    cout << "      2) File \"filename\" remains in current directory after test execution." 
+      << endl << endl;
+    return 2;
+  }
+
+  GlobalPreferences& gp = GlobalPreferences::get_instance();
+  int i=2;
+  while(i<argc && (*argv[i]!='%'))
+  {
+    gp.add_modules_dir( Glib::ustring(argv[i]) );
+    i++;
+  }
+  i++;
+  while(i<argc)
+  {
+    gp.add_policies_dir( Glib::ustring(argv[i]) );
+    i++;
+  }
+
+  GlobalPreferencesSerializer gpSer(gp);
+  gpSer.file_write(Glib::ustring(argv[1]));
+
+  // TODO - terminate me as soon as possible - please!!!
+
+  exit(0);
+}