//----< Augument xml file db contents to existing collection type db>-------------------
public static void augument_db <Key, Value, Data, T>(this DBEngine <Key, Value> db, string fileName)
where Data : List <T>
{
try
{
XDocument newDoc = null;
newDoc = XDocument.Load(fileName);
WriteLine("\n\nInput XML\n");
WriteLine(newDoc.ToString());
XElement keyElement = newDoc.Root.Element("keytype");
XElement payloadElement = newDoc.Root.Element("payloadtype");
String keyType = keyElement.Value;
String payLoad = payloadElement.Value; // check the key-type
if (typeof(Key).ToString() == keyType && typeof(Data).ToString() == payLoad)
{
IEnumerable <XElement> elements = newDoc.Root.Elements("record");
foreach (XElement item in elements) //Extract each record
{
string KeyStringval = item.Element("key").Value;
Key key = (Key)Convert.ChangeType(KeyStringval, typeof(Key));
DBElement <Key, Data> dbElement = new DBElement <Key, Data>();
XElement myelement = item.Element("element");
dbElement.name = myelement.Element("name").Value;
dbElement.descr = myelement.Element("descr").Value;
dbElement.timeStamp = DateTime.Now;
IEnumerable <XElement> childrensElements = myelement.Elements("children").Elements("key");
foreach (XElement child in childrensElements)
{
Key childKey = (Key)Convert.ChangeType(child.Value, typeof(Key));
dbElement.children.AddRange(new[] { childKey });
}
IEnumerable <XElement> payloadElements = myelement.Elements("payload").Elements("item");
List <T> payloadlist = new List <T>();
foreach (XElement child in payloadElements)
{
T payLoadKey = (T)Convert.ChangeType(child.Value, typeof(T));
payloadlist.Add(payLoadKey);
}
dbElement.payload = payloadlist as Data;
Value valueType = (Value)Convert.ChangeType(dbElement, typeof(Value));
db.insert(key, valueType);
}
}
else
{
Console.WriteLine("Not matching db");
}
}
catch (Exception)
{
Console.WriteLine("File Not Found to Read");
}
}
//----< add key value pair info for primitive type db >-------------------------------------
public bool addKeyValyePair <Key, Data>(DBEngine <Key, DBElement <Key, Data> > dbType2, DBElement <Key, Data> dbElem, Key keyVal)
{
bool res = dbType2.insert(keyVal, dbElem);
if (res)
{
dbType2.numberOfWrties++;
if (dbType2.numberOfWrties >= dbType2.max_writes)
{
dbType2.numberOfWrties = 0;
trigger_primitive_storage <Key, Data>(dbType2);
}
}
return(res);
}
//----< add key value pair info for collection type db >-------------------------------------
public bool addKeyValyePair <Key, Data, T>(DBEngine <Key, DBElement <Key, Data> > dbType2, DBElement <Key, Data> dbElem, Key keyVal)
where Data : IEnumerable <T>
{
bool res = dbType2.insert(keyVal, dbElem);
if (res)
{
dbType2.numberOfWrties++;
if (dbType2.numberOfWrties >= dbType2.max_writes)
{
dbType2.numberOfWrties = 0;
trigger_collection_storage <Key, Data, T>(dbType2);
}
}
return(res);
}
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";
Write(elem1.showElement <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();
"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");
}
static void Main(string[] args)
{
"Demonstrating Persist Engine".title('=');
DBEngine <int, DBElement <int, string> > dbType1 = new DBEngine <int, DBElement <int, string> >();
DBEngine <string, DBElement <string, List <string> > > dbType2 = new DBEngine <string, DBElement <string, List <string> > >();
//Demonstrating primitive type
DBElement <int, string> elem1 = new DBElement <int, string>();
elem1.name = "Jurassic World";
elem1.descr = "Story on escape from giant creatures";
elem1.timeStamp = DateTime.Now;
elem1.payload = "A giant creature attacks the park and becomes a killing machine";
dbType1.insert(DBElementExtensions.generate_int_key(), elem1);
DBElement <int, string> elem2 = new DBElement <int, string>();
elem2.name = "Cast Away";
elem2.descr = "Story of surviving a crash landing on a deserted island.";
elem2.timeStamp = DateTime.Now;
elem2.children.AddRange(new List <int> {
4, 5
});
elem2.payload = "Directed by Robert Zemeckis and written by Willian Broyles Jr.";
dbType1.insert(DBElementExtensions.generate_int_key(), elem2);
dbType1.showDB();
//Demostrating IEnumberable Type
DBElement <string, List <string> > newerelem1 = new DBElement <string, List <string> >();
newerelem1.name = "Movie Name - The Good the Bad and the Ugly";
newerelem1.descr = "A bounty hunting scam joins two men in an uneasy alliance ";
newerelem1.payload = new List <string> {
"Clint Eastwood", " Eli Wallach", "Lee Van Cleef"
};
String key = "The Good, the Bad and the Ugly";
dbType2.insert(key, newerelem1);
DBElement <string, List <string> > newerelem2 = new DBElement <string, List <string> >();
newerelem2.name = "Movie Name - Django Unchained";
newerelem2.descr = "With the help of a German hunter, a freed slave sets to rescue";
newerelem2.children.AddRange(new[] { key, "Life Is Beautiful" });
newerelem2.payload = new List <string> {
"Jamie Foxx", "Christoph Waltz", "Leonardo DiCaprio"
};
newerelem2.payload.Add("Quentin Tarantino");
String key1 = "Django Unchained";
dbType2.insert(key1, newerelem2);
dbType2.showEnumerableDB();
string xmlFile1 = "nosqdldb_primitive.xml";
dbType1.persist_db <int, DBElement <int, string>, string>(xmlFile1);
WriteLine("\nSuccesfully persisted dbengine contents to xml file :" + xmlFile1);
string xmlFile2 = "nosqdldb.xml";
dbType2.persist_db <string, DBElement <string, List <string> >, List <string>, string>(xmlFile2);
WriteLine("\nSuccesfully persisted dbengine contents to xml file : " + xmlFile2);
string xmlFile3 = "read_nosqldb_primitive.xml";
WriteLine("\n\n Before Augumenting DB from xml file : " + xmlFile3);
dbType1.showDB();
dbType1.augument_db <int, DBElement <int, string>, string>(xmlFile3);
WriteLine("\n\n After Augumenting DB from xml file : " + xmlFile3);
dbType1.showDB();
string xmlFile4 = "read_nosqdldb.xml";
WriteLine("\n\n Before Augumenting DB from xml file : " + xmlFile4);
dbType2.showEnumerableDB();
dbType2.augument_db <string, DBElement <string, List <string> >, List <string>, string>(xmlFile4);
WriteLine("\n\n After Augumenting DB from xml file : " + xmlFile4);
dbType2.showEnumerableDB();
DBEngine <int, DBElement <int, string> > dbType1New = new DBEngine <int, DBElement <int, string> >();
DBEngine <string, DBElement <string, List <string> > > dbType2New = new DBEngine <string, DBElement <string, List <string> > >();
string xmlFile5 = "read_nosqldb_primitive.xml";
WriteLine("\n\n Before Restoring DB from xml file : " + xmlFile5);
dbType1New.showDB();
dbType1New.augument_db <int, DBElement <int, string>, string>(xmlFile5);
WriteLine("\n\n After Restoring DB from xml file : " + xmlFile5);
dbType1New.showDB();
string xmlFile6 = "read_nosqdldb.xml";
WriteLine("\n\n Before Restoring DB from xml file : " + xmlFile6);
dbType2New.showEnumerableDB();
dbType2New.augument_db <string, DBElement <string, List <string> >, List <string>, string>(xmlFile6);
WriteLine("\n\n After Restoring DB from xml file : " + xmlFile6);
dbType2New.showEnumerableDB();
}
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");
}
