public Action<Message>edit(DBEngine<string, DBElement<string, List<string>>> db)
{
Action<Message> Edit = (msg) =>
{
XDocument xml = XDocument.Parse(msg.content.ToString());
XElement element = xml.Descendants("Msg").ElementAt(0).Descendants("Data").ElementAt(0);
string key = element.Descendants("key").ElementAt(0).Value;
DBElement<string, List<string>> elem = new DBElement<string, List<string>>();
Console.Write("\n\n --- edit a DBElement<string,List<string>> which key={0}---",key);
Write("\n\n ---Database before edit---");
db.showEnumerableDB();
if (!db.getValue(key, out elem))
{
msg.content = "edit fail";
return;
}
elem.name = element.Descendants("value").Descendants("name").ElementAt(0).Value;
elem.descr = element.Descendants("value").Descendants("descr").ElementAt(0).Value;
elem.timeStamp = (DateTime)element.Descendants("value").Descendants("timestamp").ElementAt(0);
IEnumerable<XElement> children = element.Descendants("value").Descendants("children").Descendants("key");
elem.children = new List<string>();
foreach (var child in children)
elem.children.Add(child.Value);
IEnumerable<XElement> items = element.Descendants("value").Descendants("payload").Descendants("item");
elem.payload = new List<string>();
foreach (var item in items)
elem.payload.Add(item.Value);
msg.content = "edit success";
Utilities.swapUrls(ref msg);
Write("\n\n ---Database after edit---");
db.showEnumerableDB();
};
return Edit;
}
static void Main(string[] args)
{
DBEngine <string, DBElement <string, List <string> > > db = new DBEngine <string, DBElement <string, List <string> > >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
"Demonstrating Requirement #2".title();
DBElement <string, List <string> > elem = new DBElement <string, List <string> >();
elem.name = "element";
elem.descr = "test element";
elem.timeStamp = DateTime.Now.AddDays(-4);
elem.children.AddRange(new List <string> {
"1", "2", "3 "
});
elem.payload = new List <string> {
"elem's payload"
};
WriteLine("\n Item to be inserted.. \n");
elem.showEnumerableElement();
db.insert("1", elem);
db.showEnumerableDB();
WriteLine();
WriteLine("\n Inserting second element into DB :");
DBElement <string, List <string> > elem2 = new DBElement <string, List <string> >();
elem2.name = "element2";
elem2.descr = "test element2";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <string> {
"1", "2", "3", "4"
});
elem2.payload = new List <string> {
"elem's payload"
};
WriteLine("\nItem to be inserted.. \n");
elem2.showElement();
db.insert("2", elem2);
WriteLine("\n\n DB after insertion:");
db.showEnumerableDB();
"Persisting the database to XML:".title('_');
db.toXml();
"Augumenting database from XML".title('_');
db.restoreDatabase();
db.showEnumerableDB();
}
public Action<Message>delete(DBEngine<string, DBElement<string, List<string>>> db)
{
Action<Message> Delete = (msg) =>
{
XDocument doc = XDocument.Parse(msg.content.ToString());
string key = doc.Descendants("Msg").Descendants("Data").Descendants("key").ElementAt(0).Value;
Console.Write("\n\n --- delete DBElement<string,List<string>> which key = {0}---", key);
Write("\n\n --- Database before delete ---");
db.showEnumerableDB();
if (db.delete(key))
{
msg.content = "Delete success";
Console.Write("\n\n --- Database after delete---", key);
db.showEnumerableDB();
}
else
msg.content = "Delete fail";
Utilities.swapUrls(ref msg);
};
return Delete;
}
static void Main(string[] args)
{
"Testing PersistEngine Package".title('=');
WriteLine();
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
"\nSave to an XML file".title();
PersistEngineTest p1 = new PersistEngineTest();
p1.insertData(db);
dynamic allKeys = db.Keys();
PersistEngine <int, DBElement <int, string> > pEngine = new PersistEngine <int, DBElement <int, string> >(db);
pEngine.persistToXML(allKeys);
WriteLine("\n\nAbove database is stored as XML file in local machine");
WriteLine();
WriteLine("\nThe persisted XML file along with new key/value pairs are augmented to the database.\n");
WriteLine("Below shown key/value pairs are augmented to the database.\n");
pEngine.augmentDatabaseFromXML(db); //Augment the persisted database along with new values to the main database
pEngine.persistToXML(allKeys);
db.showDB();
WriteLine();
WriteLine();
"\nPersist database every 5 seconds until its cancelled".title();
WriteLine();
pEngine.scheduledSaveDatabase();
WriteLine();
WriteLine();
"\nProject dependancy and realtionships".title();
WriteLine();
DBEngine <string, DBElement <string, List <string> > > dependancyDb = new DBEngine <string, DBElement <string, List <string> > >();
PersistEngine <string, DBElement <string, List <string> > > pEngineString = new PersistEngine <string, DBElement <string, List <string> > >(dependancyDb);
try
{
Console.WriteLine("\nBelow details provide information on dependancy of every package in the project\n");
pEngine.displayDependancy();
dependancyDb.showEnumerableDB();
WriteLine();
}
catch (Exception e)
{
WriteLine("\n" + e.Message + "\n");
}
}
static void Main(string[] args)
{
"Testing DBExtensions Package".title('=');
WriteLine();
DBElement <int, string> elem1 = new DBElement <int, string>("Element-7", "Description of Element-7");
elem1.payload = "Payload of element-7.";
elem1.children.AddRange(new List <int> {
8, 9
});
DBElement <int, string> elem2 = new DBElement <int, string>("Element-8", "Description of Element-8");
//elem2.payload = "Payload of element-8.";
DBElement <int, string> elem3 = new DBElement <int, string>("Element-9", "Description of Element-9");
elem3.payload = "Payload of element-3.";
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
db.insert(7, elem1);
db.insert(8, elem2);
db.insert(9, elem3);
Write(" Created a new dataBase with following contents:");
db.showDB();
WriteLine("\n\n Now going to persist the database contents to an XML file.");
PersistEngine pe = new PersistEngine();
string file_name = pe.persistDB <int, DBElement <int, string>, string>(db);
WriteLine(" Database contents are saved as - {0}", file_name);
WriteLine("\n Going to remove all DB elements and load the xml file saved above.");
db.remove(7);
db.remove(8);
db.remove(9);
WriteLine(" DB contents before calling load-DB");
db.showDB();
WriteLine(" Now send command to load database from the XML file.");
pe.loadDB <int, DBElement <int, string>, string>(db, file_name);
Write(" DB contents after calling load-DB ");
db.showDB();
DBEngine <string, DBElement <string, List <string> > > db2 = new DBEngine <string, DBElement <string, List <string> > >();
Write("\n\n --- DBElement<string,List<string>> ---");
DBElement <string, List <string> > elem_str = new DBElement <string, List <string> >();
elem_str.name = "Element-One";
elem_str.descr = "DB Element whose key type is string and payload type is List of strings.";
elem_str.timeStamp = DateTime.Now;
elem_str.children = new List <string> {
"Two", "Three", "Four"
};
elem_str.payload = new List <string> {
"Element payload is of type List of strings.", "This is string two.", "And third"
};
elem_str.showEnumerableElement();
db2.insert("One", elem_str);
Write("\n\n --- DBEngine<string,List<string>> ---");
db2.showEnumerableDB();
XElement noSqlDb = new XElement("NoSqlDb");
XElement keyType = new XElement("KeyType", typeof(int));
XElement payloadType = new XElement("PayloadType", typeof(string));
XElement request_msg = new XElement("Request_Message");
XElement req_type = new XElement("Request_Type", "Insert");
XElement key = new XElement("Key", 45);
XElement name = new XElement("Name", "element_one");
XElement descr = new XElement("Description", "Descr of element_one");
XElement payload = new XElement("Payload", "This the payload of element one.");
request_msg.Add(req_type);
request_msg.Add(key);
request_msg.Add(name);
request_msg.Add(descr);
request_msg.Add(payload);
Console.WriteLine("Message = \n{0}", request_msg.ToString());
XElement Rmsg = XElement.Parse(request_msg.ToString());
string Rtype = Rmsg.Element("Request_Type").Value;
Console.WriteLine("Request type = {0}", Rtype);
XElement abc = new XElement("dummy");
XElement result = new XElement("Result", "Success");
//Console.WriteLine("abc= {0}\nresult = {1}\n", abc.ToString(), result.ToString());
//abc = result;
Console.WriteLine("abc= {0}\nresult = {1}", abc.ToString(), result.ToString());
int k = 5;
string ts = "Could not find element with key " + k.ToString() + " in database";
//XElement tst = new XElement("Result", "Could not find element with key {0} in database", k);
XElement tst = new XElement("Result", ts);
Console.WriteLine("tst = {0}", tst.ToString());
XElement qry = new XElement("Query_Response");
XElement par = new XElement("Partial", "This is \njust payload");
qry.Add(tst);
qry.Add(par);
Console.WriteLine("qry = \n{0}", qry.ToString());
Console.WriteLine("value of qry response =\n{0}", qry.Value.ToString());
//noSqlDb.Add(keyType);
//noSqlDb.Add(payloadType);
//Console.WriteLine("\nString mesage = \n{0}", noSqlDb.ToString());
//string xml_string = noSqlDb.ToString();
//XElement abc = XElement.Parse(xml_string);
//XElement root = abc.Element("KeyType");
//Console.WriteLine("abc= {0}", abc.ToString());
//Console.WriteLine("root= {0}", root.ToString());
//elem.name = xml_dbElement.Element("Name").Value;
//string par = root.Value;
//Console.WriteLine("par = {0}", par);
}
static void Main(string[] args)
{
"Testing DBEngine Package".title('=');;
WriteLine();
"Test db of scalar elements".title();
WriteLine();
DBElement <int, string> elem1 = new DBElement <int, string>();
elem1.payload = "a payload";
DBElement <int, string> elem2 = new DBElement <int, string>("Darth Vader", "Evil Overlord");
elem2.payload = "The Empire strikes back!";
var elem3 = new DBElement <int, string>("Luke Skywalker", "Young HotShot");
elem3.payload = "X-Wing fighter in swamp - Oh oh!";
if (verbose)
{
Write("\n --- Test DBElement<int,string> ---");
WriteLine();
elem1.showElement();
WriteLine();
elem2.showElement();
WriteLine();
elem3.showElement();
WriteLine();
/* ElementFormatter is not ready for prime time yet */
//Write(ElementFormatter.formatElement(elem1.showElement<int, string>(), false));
}
Write("\n --- Test DBEngine<int,DBElement<int,string>> ---");
WriteLine();
int key = 0;
Func <int> keyGen = () => { ++key; return(key); };
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
bool p1 = db.insert(keyGen(), elem1);
bool p2 = db.insert(keyGen(), elem2);
bool p3 = db.insert(keyGen(), elem3);
if (p1 && p2 && p3)
{
Write("\n all inserts succeeded");
}
else
{
Write("\n at least one insert failed");
}
db.showDB();
WriteLine();
"Test db of enumerable elements".title();
WriteLine();
DBElement <string, List <string> > newelem1 = new DBElement <string, List <string> >();
newelem1.name = "newelem1";
newelem1.descr = "test new type";
newelem1.payload = new List <string> {
"one", "two", "three"
};
DBElement <string, List <string> > newerelem1 = new DBElement <string, List <string> >();
newerelem1.name = "newerelem1";
newerelem1.descr = "better formatting";
newerelem1.payload = new List <string> {
"alpha", "beta", "gamma"
};
newerelem1.payload.Add("delta");
newerelem1.payload.Add("epsilon");
DBElement <string, List <string> > newerelem2 = new DBElement <string, List <string> >();
newerelem2.name = "newerelem2";
newerelem2.descr = "better formatting";
newerelem2.children.AddRange(new List <string> {
"first", "second"
});
newerelem2.payload = new List <string> {
"a", "b", "c"
};
newerelem2.payload.Add("d");
newerelem2.payload.Add("e");
if (verbose)
{
Write("\n --- Test DBElement<string,List<string>> ---");
WriteLine();
newelem1.showEnumerableElement();
WriteLine();
newerelem1.showEnumerableElement();
WriteLine();
newerelem2.showEnumerableElement();
WriteLine();
}
Write("\n --- Test DBEngine<string,DBElement<string,List<string>>> ---");
int seed = 0;
string skey = seed.ToString();
Func <string> skeyGen = () => {
++seed;
skey = "string" + seed.ToString();
skey = skey.GetHashCode().ToString();
return(skey);
};
DBEngine <string, DBElement <string, List <string> > > newdb =
new DBEngine <string, DBElement <string, List <string> > >();
newdb.insert(skeyGen(), newelem1);
newdb.insert(skeyGen(), newerelem1);
newdb.insert(skeyGen(), newerelem2);
newdb.showEnumerableDB();
Write("\n\n");
}
public void printDatabase(DBEngine <string, DBElement <string, List <string> > > testDict, string messg)
{/*--------------------printing the database after certain operation--------------------*/
Console.Write("\n\n {0}", messg);
Console.Write("\n ================================================\n");
testDict.showEnumerableDB();
}
private void test2()
{
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
DBEngine <string, DBElement <string, List <string> > > dbString = new DBEngine <string, DBElement <string, List <string> > >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
//------------Search for Keys with pattern---------------------
"Search for keys with a pattern:".title('.');
WriteLine("\n\n Elements in DB :");
DBElement <string, List <string> > elemString = new DBElement <string, List <string> >();
elemString.name = "element";
elemString.descr = "test element";
elemString.timeStamp = DateTime.Now;
elemString.children.AddRange(new List <string> {
"Martin", "Nitish", "Michelle"
});
elemString.payload = new List <string> {
"elem's payload", "sample payload"
};
dbString.insert("Name", elemString);
DBElement <string, List <string> > elemString1 = new DBElement <string, List <string> >();
elemString1.name = "element";
elemString1.descr = "test element";
elemString1.timeStamp = DateTime.Now;
elemString1.children.AddRange(new List <string> {
"Syracuse", "Boston", "Mysore"
});
elemString1.payload = new List <string> {
"elem's payload", "sample payload"
};
dbString.insert("Cities", elemString1);
dbString.showEnumerableDB();
string keyPattern = "^C";
WriteLine("\n\nSearching for Keys with pattern: {0}\n", keyPattern);
dynamic keys = dbString.searchForKeyPattern(keyPattern);
WriteLine("\n\nMatched keys : \n");
foreach (var item in keys)
{
Write("{0}, ", item);
}
//------------Search for Keys with pattern---------------------
//------------Search for specified string in metadata---------------------
"Search for specified string in metadata:".title('.');
WriteLine("\n\n Elements in DB :");
db.showDB();
string searchString = "element3";
WriteLine("\n\n\nSearch string : {0}", searchString);
WriteLine("\n\nSearching for specified string in metadata: \n\n", searchString);
var matchedKeys = db.searchMetadata(searchString);
foreach (var matchedKey in matchedKeys)
{
Write("{0}, ", matchedKey);
}
//------------Search for specified string in metadata---------------------
}
public static void Main(string[] args)
{
Write("\n --- Test DBElement<int,string> ---");
DBElement <int, string> elem1 = new DBElement <int, string>();
elem1.payload = "a payload";
WriteLine();
DBElement <int, string> elem2 = new DBElement <int, string>("Darth Vader", "Evil Overlord");
elem2.payload = "The Empire strikes back!";
WriteLine();
var elem3 = new DBElement <int, string>("Luke Skywalker", "Young HotShot");
elem3.children.AddRange(new List <int> {
1, 5, 23
});
elem3.payload = "X-Wing fighter in swamp - Oh oh!";
WriteLine();
Write("\n --- Test DBEngine<int,DBElement<int,string>> ---");
int key = 0;
Func <int> keyGen = () => { ++key; return(key); }; // anonymous function to generate keys
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
bool p1 = db.insert(keyGen(), elem1);
bool p2 = db.insert(keyGen(), elem2);
bool p3 = db.insert(keyGen(), elem3);
if (p1 && p2 && p3)
{
Write("\n all inserts succeeded");
}
else
{
Write("\n at least one insert failed");
}
db.showDB();
WriteLine();
Write("\n --- Test DBElement<string,List<string>> ---");
DBElement <string, List <string> > newelem1 = new DBElement <string, List <string> >();
newelem1.name = "newelem1";
newelem1.descr = "test new type";
newelem1.payload = new List <string> {
"one", "two", "three"
};
Write(newelem1.showElement <string, List <string> >());
WriteLine();
Write("\n --- Test DBElement<string,List<string>> ---");
DBElement <string, List <string> > newerelem1 = new DBElement <string, List <string> >();
newerelem1.name = "newerelem1";
newerelem1.descr = "better formatting";
newerelem1.payload = new List <string> {
"alpha", "beta", "gamma"
};
newerelem1.payload.Add("delta");
newerelem1.payload.Add("epsilon");
Write(newerelem1.showElement <string, List <string>, string>());
WriteLine();
DBElement <string, List <string> > newerelem2 = new DBElement <string, List <string> >();
newerelem2.name = "newerelem2";
newerelem2.descr = "better formatting";
newerelem1.children.AddRange(new[] { "first", "second" });
newerelem2.payload = new List <string> {
"a", "b", "c"
};
newerelem2.payload.Add("d");
newerelem2.payload.Add("e");
Write(newerelem2.showElement <string, List <string>, string>());
WriteLine();
Write("\n --- Test DBEngine<string,DBElement<string,List<string>>> ---");
int seed = 0;
string skey = seed.ToString();
Func <string> skeyGen = () =>
{
++seed;
skey = "string" + seed.ToString();
skey = skey.GetHashCode().ToString();
return(skey);
};
DBEngine <string, DBElement <string, List <string> > > newdb =
new DBEngine <string, DBElement <string, List <string> > >();
newdb.insert(skeyGen(), newerelem1);
newdb.insert(skeyGen(), newerelem2);
newdb.showEnumerableDB();
WriteLine();
WriteLine("Persisting int-string XML into Database");
pe.createStringXML(db, false);
WriteLine("Persisting string-List<string> XML into Database");
pe.createListStringXML(newdb);
}
/// <summary>
/// Queries the database.
/// </summary>
/// <param name="input">The input.</param>
/// <returns></returns>
public String QueryDatabase(String input)
{
String result = String.Empty;
var dbElement = ParseXml(input);
switch (dbElement.dbOperation)
{
case "Add":
db.insert(dbElement.key, dbElement);
result = "Key " + dbElement.key + " inserted successfully!";
break;
case "Edit":
db.replaceKeyInstance(dbElement.key, dbElement);
result = "Key " + dbElement.key + "'s value modified successfully!";
break;
case "Delete":
if (db.delete(dbElement.key))
{
result = "Key " + dbElement.key + " deleted successfully!";
}
else
{
result = "Key " + dbElement.key + " not found!!";
}
break;
case "SearchChild":
var children = db.searchChildren(dbElement.key);
result = "Children are " + string.Join(", ", children.ToArray());
break;
case "Search":
var value = db.searchValue(dbElement.key);
if (value != null)
{
result = "Key " + dbElement.key + " found!!!!!\n\n";
result += value.showEnumerableElement();
}
else
{
result = "Key " + dbElement.key + " not found!!";
}
break;
case "Persist":
db.toXml();
result = "Database persisted successfully";
break;
case "Restore":
db.restoreDatabase();
result = "Database successfully restored!!";
break;
default: break;
}
string dbView = db.showEnumerableDB();
"\nDB Contents:\n".title();
result += dbView;
return(result);
}
static void Main(string[] args)
{
"Testing ItemEditor Package".title('=');
WriteLine();
Write("\n --- Test DBElement<int,string> ---");
DBElement <int, string> elem1 = new DBElement <int, string>("Element-1", "Description of Element-1");
elem1.payload = "Payload of element-1.";
elem1.children.AddRange(new List <int> {
9, 10, 11
});
DBElement <int, string> elem2 = new DBElement <int, string>("Element-2", "Description of Element-2");
elem2.payload = "Payload of element-2.";
DBElement <int, string> elem3 = new DBElement <int, string>("Element-3", "Description of Element-3");
elem3.payload = "Payload of element-3.";
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
db.insert(1, elem1);
db.insert(2, elem2);
db.insert(3, elem3);
db.showDB();
Write("\n\n Going to test adding of relationship to DB-elements: Element-1 and Element-2");
bool add1 = db.addRelation <int, DBElement <int, string>, string>(1, 2);
bool add2 = db.addRelation <int, DBElement <int, string>, string>(2, 3);
bool add3 = db.addRelation <int, DBElement <int, string>, string>(2, 17);
//add3 will be equal to false because we cannot add a child key(17) if it is not present in the database.
db.showDB();
if (add1 && add2 && add3)
{
Write("\n Adding relationship to all items successded.");
}
else
{
Write("\n Adding relationship failed in one of the cases.");
}
Write("\n\n Now going to test removing of relationship in DB-element: Element-1.");
bool rem1 = db.removeRelation <int, DBElement <int, string>, string>(1, 10);
bool rem2 = db.removeRelation <int, DBElement <int, string>, string>(1, 15);
//The above case will fail because key-15 is not present in children list of Element-1.
db.showDB();
if (rem1 && rem2)
{
Write("\n Deleting of relationship to both items successded.");
}
else
{
Write("\n Deleting of relationship failed in one of the cases.");
}
Write("\n\n Now going to test edition of name, description and replacing instance of payload with new instance in element1.");
bool ed_name1 = db.editName <int, DBElement <int, string>, string>(1, "Elemen1_Renamed.");
bool ed_descr = db.editDescr <int, DBElement <int, string>, string>(1, "New description for element 1.");
bool ed_inst = db.editInstance <int, DBElement <int, string>, string>(1, "New instance of payload for element-1.");
db.showDB();
Write("\n\n --- Test DBElement<string,List<string>> ---");
DBElement <string, List <string> > new_elem1 = new DBElement <string, List <string> >("Element-One", "Description of Element-One");
new_elem1.payload = new List <string> {
"First string in payload of Element-One", "Second string in payload of Element-One", "Third string"
};
new_elem1.children.AddRange(new List <string> {
"Nine", "Ten", "Eleven"
});
DBElement <string, List <string> > new_elem2 = new DBElement <string, List <string> >("Element-Two", "Description of Element-Two");
new_elem2.payload = new List <string> {
"First string in payload of Element-Two", "Mars", "Venus"
};
DBElement <string, List <string> > new_elem3 = new DBElement <string, List <string> >("Element-Three", "Description of Element-Three");
new_elem3.payload = new List <string> {
"First string in payload of element-3", "Beta", "Gamma"
};
DBEngine <string, DBElement <string, List <string> > > new_db = new DBEngine <string, DBElement <string, List <string> > >();
new_db.insert("One", new_elem1);
new_db.insert("Two", new_elem2);
new_db.insert("Three", new_elem3);
new_db.showEnumerableDB();
Write("\n\n Going to test adding of relationship to DB-elements: Element-One and Element-Two");
bool a1 = new_db.addRelation <string, DBElement <string, List <string> >, List <string> >("One", "Two");
bool a2 = new_db.addRelation <string, DBElement <string, List <string> >, List <string> >("Two", "Three");
bool a3 = new_db.addRelation <string, DBElement <string, List <string> >, List <string> >("Three", "Not_presnet");
//a3 will be false because we are trying to add a key that is not present in the database.
new_db.showEnumerableDB();
if (a1 && a2 && a3)
{
Write("\n Adding relationship to all items successded.");
}
else
{
Write("\n Adding relationship failed in one of the cases.");
}
Write("\n\n Now going to test removing of relationships in DB-element: Element-One");
bool r1 = new_db.removeRelation <string, DBElement <string, List <string> >, List <string> >("One", "Nine");
bool r2 = new_db.removeRelation <string, DBElement <string, List <string> >, List <string> >("One", "Not_present");
//r2 will be false because we are trying to remove a relationship in element one which is not even presnet.
new_db.showEnumerableDB();
if (r1 && r2)
{
Write("\n Deleting of relationships successded in both cases.");
}
else
{
Write("\n Deleting of relationship failed in one of the cases.");
}
Write("\n\n Now going to test edition of name, description and replacing instance of payload with new instance in Element-One.");
new_db.editName <string, DBElement <string, List <string> >, List <string> >("One", "Edited name for Element-One");
new_db.editDescr <string, DBElement <string, List <string> >, List <string> >("One", "New description for Element-One");
new_db.editInstance <string, DBElement <string, List <string> >, List <string> >("One", new List <string> {
"New payload - String One", "New payload - String Two", "New payload - String Three"
});
new_db.showEnumerableDB();
WriteLine();
}
static void Main(string[] args)
{
"Testing QueryEngine Package".title('=');
WriteLine();
QueryEngine sendQuery = new QueryEngine();
DBElement <int, string> elem1 = new DBElement <int, string>("Element-1", "Description of Element-1");
elem1.payload = "Payload of element-1.";
elem1.children.AddRange(new List <int> {
9, 10, 11, 79
});
DBElement <int, string> elem2 = new DBElement <int, string>("Element-2", "Description of Element-2");
elem2.payload = "Payload of element-2.";
DBElement <int, string> elem3 = new DBElement <int, string>("Element-3", "Description of Element-3");
elem3.payload = "Payload of element-3.";
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
db.insert(1, elem1);
db.insert(2, elem2);
db.insert(3, elem3);
db.showDB();
DBElement <int, string> result_elem = new DBElement <int, string>();
DBElement <int, string> result_elem2 = new DBElement <int, string>();
//DBElement<int, string> result_elem = new DBElement<int, string>();
Write("\n\n Send query -> Find element with key = 2");
result_elem = sendQuery.findValue <int, DBElement <int, string>, string>(db, 2);
if (result_elem == null)
{
WriteLine("\n Element with Key= 2 was not found in the database.");
}
else
{
result_elem.showElement();
}
Write("\n\n Send query -> Find element with key = 5");
result_elem = sendQuery.findValue <int, DBElement <int, string>, string>(db, 5);
if (result_elem == null)
{
WriteLine("\n Element with Key= 5 was not found in the database.");
}
else
{
result_elem.showElement();
}
Write("\n Send query -> Get children of element with key = 1");
List <int> x1 = sendQuery.getChildren <int, DBElement <int, string>, string>(db, 1);
Write("\n Children of element with key=1 are ");
foreach (int i in x1)
{
Write("{0} ", i);
}
Write("\n\n Send query -> Get children of element with key = 3");
List <int> y1 = sendQuery.getChildren <int, DBElement <int, string>, string>(db, 3);
if (y1.Count() > 0)
{
Write("\n Children of element with key=3 are ");
foreach (int i in y1)
{
Write("{0} ", i);
}
}
else
{
WriteLine("\n Element with key=3 has no children.");
}
WriteLine("\n Send query -> Get keys with string -\"blah\" in metadata section.");
List <int> m1 = sendQuery.get_keys_with_metadata <int, DBElement <int, string>, string>(db, "18779");
if (m1.Count() > 0)
{
Write(" Keys that contain the string \"ent-2\" in their metadata section are: ");
foreach (int i in m1)
{
Write("{0} ", i);
}
}
else
{
WriteLine(" No keys found having \"ent-2\" in their metadata section.");
}
//WriteLine("Type of x = {0}", x.ToString());
//----< Test query methods for DBEngine<string, DBElement<string, List<string>>> >----------
Write("\n\n --- Test Query methods for DBEngine<string, DBElement<string,List<string>>> ---");
DBElement <string, List <string> > new_elem1 = new DBElement <string, List <string> >("Element-One", "Description of Element-One");
new_elem1.payload = new List <string> {
"First string in payload of Element-One", "Second string in payload of Element-One", "Third string"
};
new_elem1.children.AddRange(new List <string> {
"Nine", "Ten", "Eleven"
});
System.Threading.Thread.Sleep(1200);
DateTime tm1 = DateTime.Now;
System.Threading.Thread.Sleep(1200);
DBElement <string, List <string> > new_elem2 = new DBElement <string, List <string> >("Element-Two", "Description of Element-Two");
new_elem2.payload = new List <string> {
"First string in payload of Element-Two", "Mars", "Venus"
};
System.Threading.Thread.Sleep(1200);
DBElement <string, List <string> > new_elem3 = new DBElement <string, List <string> >("Element-Three", "Description of Element-Three");
new_elem3.payload = new List <string> {
"First string in payload of element-3", "Beta", "Gamma"
};
DBEngine <string, DBElement <string, List <string> > > new_db = new DBEngine <string, DBElement <string, List <string> > >();
new_db.insert("One", new_elem1);
new_db.insert("Two", new_elem2);
new_db.insert("Three", new_elem3);
DateTime tm2 = DateTime.Now;
new_db.showEnumerableDB();
Write("\n\n Send query -> Find element with key = One");
if (sendQuery.findValue <string, DBElement <string, List <string> >, List <string> >(new_db, "One") == null)
{
WriteLine("\n Element with Key= \"One\" was not found in the database.");
}
else
{
sendQuery.findValue <string, DBElement <string, List <string> >, List <string> >(new_db, "One").showEnumerableElement();
}
Write("\n\n Send query -> Find element with key = Five");
if (sendQuery.findValue <string, DBElement <string, List <string> >, List <string> >(new_db, "Five") == null)
{
WriteLine("\n Element with Key= \"Five\" was not found in the database.");
}
else
{
sendQuery.findValue <string, DBElement <string, List <string> >, List <string> >(new_db, "Five").showEnumerableElement();
}
Write("\n Send query -> Get children of element with key = \"One\"");
//List<int> x = sendQuery.getChildren<int, DBElement<int, string>, string>(db, 1);
List <string> x = sendQuery.getChildren <string, DBElement <string, List <string> >, List <string> >(new_db, "One");
if (x.Count() > 0)
{
Write("\n Children of element with key=\"One\" are ");
foreach (string i in x)
{
Write("{0} ", i);
}
}
else
{
WriteLine("\n Element with key=\"One\" has no children.");
}
Write("\n\n Send query -> Get children list of element with key = \"Three\"");
//List<int> x = sendQuery.getChildren<int, DBElement<int, string>, string>(db, 1);
List <string> y = sendQuery.getChildren <string, DBElement <string, List <string> >, List <string> >(new_db, "Three");
if (y.Count > 0)
{
Write("\n Children of element with key=\"Three\" are ");
foreach (string i in y)
{
Write("{0} ", i);
}
}
else
{
WriteLine("\n Element with key=\"Three\" has no children.");
}
List <string> search_pat = new List <string> {
"UnKnown", "lement"
};
foreach (string pattern_in_metadata in search_pat)
{
WriteLine("\n Send query -> Get all keys containing string - \"{0}\" in their metadata section.", pattern_in_metadata);
List <string> res1 = sendQuery.get_keys_with_metadata <string, DBElement <string, List <string> >, List <string> >(new_db, pattern_in_metadata);
if (res1.Count > 0)
{
Write(" Keys containing string \"{0}\" in their metadata section are: ", pattern_in_metadata);
foreach (string i in res1)
{
Write("{0} ", i);
}
}
else
{
WriteLine(" No keys found containing pattern \"{0}\" in their metadata section.", pattern_in_metadata);
}
}
WriteLine("\n\n Send query -> Get all keys written within time intervals \"{0}\" and \"{1}\"", tm1, tm2);
List <string> result1 = sendQuery.get_keys_within_timeInterval <string, DBElement <string, List <string> >, List <string> >(new_db, tm1);
if (result1.Count > 0)
{
Write(" Keys written within specified time intervals are: ");
//Write(" Keys are: ");
foreach (string i in result1)
{
Write("{0} ", i);
}
}
else
{
WriteLine(" No keys found written withing specified time interevals tm1 and tm2.");
}
//WriteLine("tm1 = {0}\ntm2 = {1}", tm1, tm2);
}
