public string processDataRestoreMessageRequest()
{
string content = "";
try
{
PersistData <string, List <string> > persistEngine = new PersistData <string, List <string> >();
DBEngine <string, DBElement <string, List <string> > > restoreData = new DBEngine <string, DBElement <string, List <string> > >();
persistEngine.restoreData(restoreData, "PersistData.xml");
if (restoreData.Keys().Count() > 0)
{
content = "\nDatabase restored successfully from PersistData.xml";
}
else
{
content = "\nDatabase restore failed";
}
}
catch (Exception e)
{
Console.Write(" Exception : " + e.StackTrace);
content = "\nDatabase restore failed";
}
return(content);
}
static void Main(string[] args)
{
"Testing Persist Engine Package".title('=');
DBEngine <int, DBElement <int, ListOfStrings> > db1 = new DBEngine <int, DBElement <int, ListOfStrings> >();
PersistData <int, ListOfStrings> persistEngine1 = new PersistData <int, ListOfStrings>();
"Write in-memory database in XML file, please check DataPersistTest.xml file.".title('-');
persistEngine1.loadXmlFile("DataPersistTest.xml", typeof(int).Name, typeof(ListOfStrings).Name);
if (!persistEngine1.addRecord(1, db1.Dictionary[1]))
{
WriteLine("Key 1 is already in xml file.");
}
else
{
WriteLine("Key 1 is inserted in xml file.");
}
if (!persistEngine1.addRecord(2, db1.Dictionary[2]))
{
WriteLine("Key 2 is already in xml file.");
}
else
{
WriteLine("Key 2 is inserted in xml file.");
}
if (!persistEngine1.addRecord(4, db1.Dictionary[4]))
{
WriteLine("Key 4 is already in xml file.");
}
else
{
WriteLine("Key 4 is inserted in xml file.");
}
if (!persistEngine1.addRecord(2, db1.Dictionary[4]))
{
WriteLine("Key 4 is already in xml file.");
}
else
{
WriteLine("Key 4 is inserted in xml file.");
}
"Database restored or augmented from an existing XML (Data1.xml) file".title('-');
DBEngine <int, DBElement <int, ListOfStrings> > augmentData = new DBEngine <int, DBElement <int, ListOfStrings> >();
persistEngine1.retrieveDataFromXML(augmentData, "DataPersistTest.xml");
augmentData.showDB();
WriteLine();
}
//----< persist data to file when request came from client.>-----
private void persistDatatToFile()
{
PersistData <string, List <string> > persistEngine = new PersistData <string, List <string> >();
persistEngine.restoreDataToXML("PersistData.xml", db);
}