static void Main(string[] args)
{
"Testing DBEngine Package".title('=');
WriteLine();
Write("\n --- Test DBElement<int,string> ---");
DBElement<int, string> elem1 = new DBElement<int, string>();
elem1.payload = "a payload";
Write(elem1.showElement<int, string>());
WriteLine();
DBElement<int, string> elem2 = new DBElement<int, string>("Darth Vader", "Evil Overlord");
elem2.payload = "The Empire strikes back!";
Write(elem2.showElement<int, string>());
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!";
Write(elem3.showElement<int, string>());
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.show<int, DBElement<int, string>, string>();
WriteLine();
WriteLine();
"testing edits".title();
db.show<int, DBElement<int, string>, string>();
DBElement<int, string> editElement = new DBElement<int, string>();
db.getValue(1, out editElement);
editElement.showElement<int, string>();
editElement.name = "editedName";
editElement.descr = "editedDescription";
db.show<int, DBElement<int, string>, string>();
Write("\n\n");
"Test for interface IQuery".title();
IQuery<int, DBElement<int, string>> iq = db;
foreach (int db_key in iq.Keys())
{
DBElement<int, string> ele = new DBElement<int, string>();
iq.getValue(db_key, out ele);
WriteLine("element at key {0}: {1}", db_key, ele);
}
int[] key_array = db.Keys().ToArray();
WriteLine("removing element with key:{0} from database <int, DBElement<int, string>>",key_array[2]);
WriteLine();
db.remove(key_array[2]);
db.show<int, DBElement<int, string>, string>();
WriteLine();
WriteLine("Removing all elements from database:");
db.removeAll();
WriteLine("DB after removal:");
db.show<int, DBElement<int, string>, string>();
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.show<string, DBElement<string, List<string>>, List<string>, string>();
WriteLine();
WriteLine();
string[] key_enum_array = newdb.Keys().ToArray();
WriteLine("removing element with key:{0} from database <string, DBElement<int, List<string>>>",key_enum_array[0]);
WriteLine();
newdb.remove(key_enum_array[0]);
newdb.show<string, DBElement<string, List<string>>, List<string>, string>();
WriteLine();
WriteLine("removing all elements from database:");
newdb.removeAll();
WriteLine("DB after removal:");
newdb.show<string, DBElement<string, List<string>>, List<string>, string>();
}
static void Main(string[] args)
{
//<------Create test DB----->
"Testing for PersistEngine package".title();
DBEngine<int, DBElement<int, string>> db = new DBEngine<int, DBElement<int, string>>();
DBEngine<string, DBElement<string, List<string>>> enum_db = new DBEngine<string, DBElement<string, List<string>>>();
for (int i = 0; i < 3; i++)
{
DBElement<int, string> elem = new DBElement<int, string>();
elem.name = "element";
elem.descr = "test element";
elem.timeStamp = DateTime.Now;
elem.children.AddRange(new List<int> { 1, 2, 3 });
elem.payload = "elem's payload";
elem.showElement();
db.insert(i, elem);
}
db.showDB();
WriteLine();
//<-------Save DB data to XML file--------->
"Demonstrating XDocument class".title('=');
WriteLine();
"Creating XML string using XDocument".title();
WriteLine();
db.create_xml_from_db(false);
//<---Empty DBEngine<int, DBElement<int, string>>--->
"Removing entries from Db if any".title();
if (db != null)
{
db.removeAll();
}
"Current DB state".title();
db.showDB();
WriteLine();
db.create_db_from_xml();
WriteLine();
//<---------Create test enum DB-------->
for (int i = 0; i < 3; i++)
{
DBElement<string, List<string>> elem = new DBElement<string, List<string>>();
elem.name = "element";
elem.descr = "test element";
elem.timeStamp = DateTime.Now;
elem.children.AddRange(new List<string> { "child1", "child2" });
elem.payload = new List<string> { "payload 1", "payload 2" };
elem.showEnumerableElement();
enum_db.insert(i.ToString(), elem);
}
enum_db.showEnumerableDB();
WriteLine();
//<-------Save enum_DB data to XML file--------->
"Creating XML string using XDocument".title();
enum_db.create_xml_from_enum_db(false);
WriteLine();
if (enum_db != null)
{
enum_db.removeAll();
}
//<----Empty DBEngine<string, DBElement<string, List<string>>----->
"Removing entries from enum Db if any".title();
if (enum_db != null)
{
string[] key_array = enum_db.Keys().ToArray();
foreach (string key in key_array)
{
enum_db.remove(key);
}
}
"Cureent enum DB state".title();
enum_db.showEnumerableDB();
WriteLine();
enum_db.create_enum_db_from_xml();
WriteLine();
WriteLine();
}
