public Action<Message>insert(DBEngine<int,DBElement<int,string>>db)
{
Action<Message> Insert = (msg) =>
{
XDocument doc = XDocument.Parse(msg.content);
int key = int.Parse(doc.Descendants("Msg").Descendants("Data").Descendants("key").ElementAt(0).Value);
DBElement<int, string> elem = new DBElement<int, string>();
elem.name = doc.Descendants("Msg").Descendants("Data").Descendants("value").Descendants("name").ElementAt(0).Value;
elem.descr = doc.Descendants("Msg").Descendants("Data").Descendants("value").Descendants("descr").ElementAt(0).Value;
elem.timeStamp = (DateTime)doc.Descendants("Msg").Descendants("Data").Descendants("value").Descendants("timestamp").ElementAt(0);
IEnumerable<XElement> children = doc.Descendants("Msg").Descendants("Data").Descendants("value").Descendants("children").Descendants("key");
foreach (var child in children)
elem.children.Add(int.Parse(child.Value));
IEnumerable<XElement> items = doc.Descendants("Msg").Descendants("Data").Descendants("value").Descendants("payload");
if (items.Count() == 1)
elem.payload = items.ElementAt(0).Value;
if (!db.insert(key, elem))
msg.content = "Insert fail";
else
{
msg.content = "Insert success";
Console.Write("\n\n --- insert a DBElement<int,string>---");
elem.showElement();
}
Utilities.swapUrls(ref msg);
};
return Insert;
}
/// <summary>
/// show enumerable element.
/// </summary>
/// <param name="enumElement"></param>
public static string showEnumerableElement(this DBElement <string, List <string> > enumElement)
{
string result = enumElement.showElement <string, List <string>, string>();
Console.Write(result);
return(result);
}
static void Main(string[] args)
{
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>();
DBElement <int, string> elem = itemFactory.Create();
elem.name = "element";
elem.descr = "test element";
elem.timeStamp = DateTime.Now.AddDays(-4);
elem.children.AddRange(new List <int> {
1, 2, 3
});
elem.payload = "elem's payload";
WriteLine("\n Item to be inserted.. \n");
elem.showElement();
db.insert(1, elem);
db.showDB();
WriteLine();
WriteLine("\n Inserting second element into DB :");
DBElement <int, string> elem2 = new DBElement <int, string>();
elem2.name = "element2";
elem2.descr = "test element2";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <int> {
1, 2, 3, 4
});
elem2.payload = "elem2's payload";
WriteLine("\nItem to be inserted.. \n");
elem2.showElement();
db.insert(2, elem2);
WriteLine("\n\n DB after insertion:");
db.showDB();
//Inserting element 3
WriteLine("\n Inserting third element into DB :");
DBElement <int, string> elem3 = new DBElement <int, string>();
elem3.name = "element3";
elem3.descr = "test element3";
elem3.timeStamp = DateTime.Now.AddDays(-5);
elem3.children.AddRange(new List <int> {
5, 8, 10
});
elem3.payload = "elem3's payload";
WriteLine("\nItem to be inserted.. \n");
elem3.showElement();
db.insert(3, elem3);
WriteLine("\n\n DB after insertion:");
db.showDB();
QueryEngineTest engineTest = new QueryEngineTest();
engineTest.test1();
engineTest.test2();
engineTest.test3();
}
static void Main(string[] args)
{
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
"Demonstrating Requirement #2".title();
DBElement <int, string> elem = itemFactory.Create();
elem.name = "element";
elem.descr = "test element";
elem.timeStamp = DateTime.Now.AddDays(-4);
elem.children.AddRange(new List <int> {
1, 2, 3
});
elem.payload = "elem's payload";
WriteLine("\n Item to be inserted.. \n");
elem.showElement();
db.insert(1, elem);
db.showDB();
WriteLine();
WriteLine("\n Inserting second element into DB :");
DBElement <int, string> elem2 = new DBElement <int, string>();
elem2.name = "element2";
elem2.descr = "test element2";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <int> {
1, 2, 3, 4
});
elem2.payload = "elem2's payload";
WriteLine("\nItem to be inserted.. \n");
elem2.showElement();
db.insert(2, elem2);
WriteLine("\n\n DB after insertion:");
db.showDB();
"Adding relationship :".title('.');
WriteLine("\n Elements in DB :");
db.showDB();
int key = 2;
var children = new List <int> {
5, 6
};
WriteLine("\n Add children for key {0} : ", key);
foreach (var child in children)
{
Write("{0}, ", child);
}
WriteLine();
db.addRelationship(key, children);
WriteLine("\n\n DB after the change :");
db.showDB();
WriteLine();
"".demarcation();
ItemEditorTest editorTest = new ItemEditorTest();
editorTest.test();
}
static void Main(string[] args)
{
"Testing DBElement Package".title('=');
WriteLine();
Write("\n --- Test DBElement<int,string> ---");
WriteLine();
DBElement <int, string> elem1 = new DBElement <int, string>();
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 = new List <int> {
1, 2, 7
};
elem3.payload = "X-Wing fighter in swamp - Oh oh!";
Write(elem3.showElement <int, string>());
WriteLine();
Write("\n --- Test DBElement<string,List<string>> ---");
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"
};
Write(newelem1.showElement <string, List <string>, string>());
WriteLine();
DBElement <string, List <string> > newerelem1 = new DBElement <string, List <string> >();
newerelem1.name = "newerelem1";
newerelem1.descr = "same stuff";
newerelem1.children.Add("first_key");
newerelem1.children.Add("second_key");
newerelem1.payload = new List <string> {
"alpha", "beta", "gamma"
};
newerelem1.payload.AddRange(new[] { "delta", "epsilon" });
Write(newerelem1.showElement <string, List <string>, string>());
WriteLine();
Write("\n\n");
}
//----< write simple db elements out to Console >------------------
public static void show <Key, Value, Data>(this DBEngine <Key, Value> db)
{
foreach (Key key in db.Keys())
{
Value value;
db.getValue(key, out value);
DBElement <Key, Data> elem = value as DBElement <Key, Data>;
Write("\n\n -- key = {0} --", key);
Write(elem.showElement());
}
}
//----< write simple db elements out to Console >------------------
public static void showDictionaryData <Key, Value, Data>(this Dictionary <Key, Value> db)
{
foreach (Key key in db.Keys)
{
Value value;
value = db[key];
DBElement <int, List <string> > elem = value as DBElement <int, List <string> >;
Write("\n\n -- key = {0} --", key);
Write(elem.showElement());
}
}
//----< write enumerable db elements out to Console >--------------
public static void show <Key, Value, Data, T>(this DBFactory <Key, Value> db)
where Data : IEnumerable <T>
{
foreach (Key key in db.Keys())
{
Value value;
db.getValue(key, out value);
DBElement <Key, Data> elem = value as DBElement <Key, Data>;
Write("\n\n -- key = {0} --", key);
Write(elem.showElement <Key, Data, T>());
}
}
static void Main(string[] args)
{
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
"Demonstrating Requirement #2".title();
DBElement <int, string> elem = itemFactory.Create();
elem.name = "element";
elem.descr = "test element";
elem.timeStamp = DateTime.Now.AddDays(-4);
elem.children.AddRange(new List <int> {
1, 2, 3
});
elem.payload = "elem's payload";
WriteLine("\n Item to be inserted.. \n");
elem.showElement();
db.insert(1, elem);
db.showDB();
WriteLine("\n Inserting second element into DB :");
DBElement <int, string> elem2 = new DBElement <int, string>();
elem2.name = "element2";
elem2.descr = "test element2";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <int> {
1, 2, 3, 4
});
elem2.payload = "elem2's payload";
WriteLine("\nItem to be inserted.. \n");
elem2.showElement();
db.insert(2, elem2);
WriteLine("\n\n DB after insertion:");
db.showDB();
WriteLine("\n\n DB after insertion:");
db.showDB();
var dict = new Dictionary <int, DBElement <int, string> >();
var keys = db.searchForTimeStamp(DateTime.Now.AddDays(-6), DateTime.Now.AddDays(-3));
Console.WriteLine("\nRunning a query on database..\n");
Console.WriteLine("\n\nThe result are the following keys:\n\n");
foreach (var item in keys)
{
dynamic result = db.searchValue(item);
Console.Write("{0}, ", item);
dict.Add(item, result);
}
DBFactory <int, DBElement <int, string> > dbFactory = new DBFactory <int, DBElement <int, string> >(dict);
"Immutable database:".title('.');
Console.WriteLine("\n\nImmutable database is of type DBFactory, which is immutable (Found in DBFactory.cs).");
}
//----< write simple db elements out to Console >------------------
public static void show <Key, Value, Data>(this DBEngine <Key, Value> db)
{
"Displaying DB contents :".title('_');
foreach (Key key in db.Keys())
{
Value value;
db.getValue(key, out value);
DBElement <Key, Data> elem = value as DBElement <Key, Data>;
Write("\n\n -- key = {0} --", key);
Write(elem.showElement());
Write("\n -- key = {0} --", key);
}
"".demarcation();
}
private void test()
{
DBEngine <int, DBElement <int, string> > db = new DBEngine <int, DBElement <int, string> >();
ItemFactory <int, string> itemFactory = new ItemFactory <int, string>();
int key = 0;
//-----------Modify Metadata--------------------------
"Modify metadata".title('.');
WriteLine("\n Elements in DB :");
db.showDB();
key = 2;
string name = "Nitish";
string description = "MS in CE";
WriteLine("\n\n\n New Details for metadata of key {0} :", key);
WriteLine("\n Name : {0}", name);
WriteLine("\n Description : {0}", description);
WriteLine();
db.modifyMetadata(key, name, description);
WriteLine("\n\n DB after the change :");
db.showDB();
WriteLine();
"".demarcation();
//-----------Modify Metadata--------------------------
//-------------------Replace Value instance-----------------------
"Replace value instance".title('.');
WriteLine("\n\n Elements in DB :");
DBElement <int, string> elem = itemFactory.Create();
db.showDB();
key = 2;
//DBElement<int, string> elem = new DBElement<int, string>();
elem.name = "new element";
elem.descr = "new test element";
elem.timeStamp = DateTime.Now;
elem.children.AddRange(new List <int> {
7, 8, 9
});
elem.payload = "new elem's payload";
WriteLine("\n\n New instance for replacement for key {0}:\n", key);
elem.showElement();
WriteLine("\n\n Replace instance of a key :");
db.replaceKeyInstance(key, elem);
WriteLine("\n\n DB after the change :");
db.showDB();
WriteLine();
"".demarcation();
//-------------------Replace Value instance-----------------------
}
//----< write enumerable db elements out to Console >--------------
public static string show <Key, Value, Data, T>(this DBEngine <Key, Value> db)
where Data : IEnumerable <T>
{
StringBuilder displayString = new StringBuilder();
foreach (Key key in db.Keys())
{
Value value;
db.getValue(key, out value);
DBElement <Key, Data> elem = value as DBElement <Key, Data>;
displayString.Append("\n\n -- key = " + key + " --");
displayString.Append(elem.showElement <Key, Data, T>());
}
return(displayString.ToString());
}
private void test2()
{
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);
};
int key = 0;
Func <int> keyGen = () => { ++key; return(key); };
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();
}
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();
}
private void test1()
{
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();
}
static void Main(string[] args)
{
"Testing DBExtensions Package".title('=');
WriteLine();
Write("\n --- Test DBElement<int,string> ---");
DBElement <int, string> elem1 = new DBElement <int, string>();
elem1.payload = "a payload";
elem1.children = new List <int> {
1, 2, 3, 4
};
Write(elem1.showMetaData <int, string>());
DBEngine <int, DBElement <int, string> > dbs = new DBEngine <int, DBElement <int, string> >();
dbs.insert(1, elem1);
dbs.show <int, DBElement <int, string>, string>();
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.children = new List <string> {
"Key1", "Key2"
};
newelem1.payload = new List <string> {
"one", "two", "three"
};
Write(newelem1.showElement <string, List <string>, string>());
DBEngine <string, DBElement <string, List <string> > > dbe = new DBEngine <string, DBElement <string, List <string> > >();
dbe.insert("key1", newelem1);
dbe.show <string, DBElement <string, List <string> >, List <string>, string>();
Write("\n\n");
}
static void Main(string[] args)
{
"Testing DBEngine Package".title('=');
WriteLine();
Program p1 = new Program();
p1.testDBlement();
p1.testDBElementenurmableData();
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();
"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");
}
public void testDBElementenurmableData()
{
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();
}
/// <summary>
/// show element which has key as integer and element as ListOfString.
/// </summary>
/// <param name="element"></param>
public static void showElement(this DBElement <int, ListOfStrings> element)
{
Console.Write(element.showElement <int, ListOfStrings>());
}
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 static void showEnumerableElement(this DBElement <string, List <string> > enumElement)
{
Console.Write(enumElement.showElement <string, List <string>, string>());
}
public static void showElement(this DBElement <int, string> element)
{
Console.Write(element.showElement <int, string>());
}
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);
}
static void Main(string[] args)
{
"Testing Payload Wrapper".title('=');
WriteLine();
ListOfStrings los = new ListOfStrings();
los.theWrappedData.AddRange(new List <string> {
"one", "two", "three"
});
"showing List of strings:".title();
foreach (string item in los.theWrappedData)
{
Write("\n {0}", item);
}
WriteLine();
"Output from PayloadWrapper.ToString()".title();
Write("\n{0}", los.ToString());
//WriteLine();
"output from PayloadWrapper.ToXml()".title();
Write("\n{0}", los.ToXml());
WriteLine();
"output from elem.showElement<string, ListOfStrings>()".title();
DBElement <string, ListOfStrings> elem = new DBElement <string, ListOfStrings>();
elem.name = "test element";
elem.descr = "created to test PayloadWrapper";
elem.payload = new ListOfStrings();
elem.payload.theWrappedData = new List <string> {
"alpha", "beta", "gamma", "delta", "epsilon"
};
Write(elem.showElement <string, ListOfStrings>());
/////////////////////////////////////////////////////////////////////
// The sequence of statements below should be turned into an
// extension method: static public void clone(this List<string>)
//
"test cloning elem".title('=');
WriteLine();
DBElement <string, ListOfStrings> cloned = new DBElement <string, ListOfStrings>();
cloned.name = String.Copy(elem.name);
cloned.descr = String.Copy(elem.descr);
cloned.timeStamp = DateTime.Parse(elem.timeStamp.ToString());
cloned.children = new List <string>();
cloned.children.AddRange(elem.children);
cloned.payload = elem.payload.clone() as ListOfStrings;
"output from elem.showElement<string, ListOfStrings>()".title();
Write(elem.showElement <string, ListOfStrings>());
"output from cloned.showElement<string, ListOfStrings>()".title();
Write(cloned.showElement <string, ListOfStrings>());
//"Hashcodes are not reliable object identifiers".title();
//Write(string.Format("\n hashcode of elem = {0}", elem.GetHashCode()));
//Write(string.Format("\n hashcode of elem.name = {0}", elem.name.GetHashCode()));
//Write(string.Format("\n hashcode of elem.descr = {0}", elem.descr.GetHashCode()));
//Write(string.Format("\n hashcode of elem.payload = {0}", elem.payload.GetHashCode()));
//WriteLine();
//Write(string.Format("\n hashcode of cloned = {0}", cloned.GetHashCode()));
//Write(string.Format("\n hashcode of cloned.name = {0}", cloned.name.GetHashCode()));
//Write(string.Format("\n hashcode of cloned.descr = {0}", cloned.descr.GetHashCode()));
//Write(string.Format("\n hashcode of cloned.payload = {0}", cloned.payload.GetHashCode()));
//WriteLine();
"testing for equality immediately after cloning".title();
showEquality(cloned.name, elem.name, "cloned.name vs. elem.name");
showEquality(cloned.descr, elem.descr, "cloned.descr vs. elem.descr");
showDateTimeEquality(cloned.timeStamp, elem.timeStamp, "cloned.timeStamp vs. elem.timeStamp");
showListEquality(cloned.children, elem.children, "cloned.children vs. elem.children");
showListEquality <string>(cloned.payload.theWrappedData, elem.payload.theWrappedData, "cloned.payload vs. elem.payload");
WriteLine();
"modifying clone's properties".title();
WriteLine();
cloned.name = cloned.name + " modified";
cloned.descr = cloned.descr + " modified";
cloned.timeStamp = DateTime.Today;
cloned.children.AddRange(new List <string> {
"key11", "key13"
});
cloned.payload.theWrappedData.AddRange(new List <string> {
"zeta", "eta"
});
"output from elem.showElement<string, ListOfStrings>()".title();
Write(elem.showElement <string, ListOfStrings>());
"output from cloned.showElement<string, ListOfStrings>()".title();
Write(cloned.showElement <string, ListOfStrings>());
"Testing equality after modifying clone's values".title();
showEquality(cloned.name, elem.name, "cloned.name vs. elem.name");
showEquality(cloned.descr, elem.descr, "cloned.descr vs. elem.descr");
showDateTimeEquality(cloned.timeStamp, elem.timeStamp, "cloned.timeStamp vs. elem.timeStamp");
showListEquality(cloned.children, elem.children, "cloned.children vs. elem.children");
showListEquality <string>(cloned.payload.theWrappedData, elem.payload.theWrappedData, "cloned.payload vs. elem.payload");
Write("\n\n");
}
public static string showEnumerableElement(this DBElement <string, List <string> > enumElement)
{
return(enumElement.showElement <string, List <string>, string>());
}
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();
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();
"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");
}