//----< Demonstrating req 3 - addition/deletion of key/value database for collection type db>-------------------
public void TestR3_NonPrimitive(DBEngine <int, DBElement <int, string> > dbType1, DBEngine <string, DBElement <string, List <string> > > dbType2, DBItemEditor editor)
{
"\nDemonstrating Requirement #3 Collection Type".title();
WriteLine("\n\n Addition of Key/value pair");
String movie_name = "3 Idiots";
WriteLine(" Before Adding Key : " + movie_name);
dbType2.showEnumerableDB();
DBElement <string, List <string> > newerelem3 = new DBElement <string, List <string> >();
newerelem3.name = "Movie Name: 3 Idiots";
newerelem3.descr = "3 Friends revist the college days and recall memories";
newerelem3.children.AddRange(new[] { "The Good, the Bad and the Ugly", "Django Unchained" });
newerelem3.payload = new List <string> {
"Aamir Khan", "Madhavan", "Mona Singh"
};
editor.addKeyValyePair <string, List <String>, string>(dbType2, newerelem3, movie_name);
WriteLine("\n\n After adding key :" + movie_name);
dbType2.showEnumerableDB();
IEnumerable <string> keys = dbType2.Keys();
String first = keys.First();
WriteLine("\n\n Removal of Key/value pair");
WriteLine(" Before removing key :" + first);
dbType2.showEnumerableDB();
editor.removeKey <string, List <string>, string>(dbType2, first);
WriteLine("\n\n After removing key :" + first);
dbType2.showEnumerableDB();
}
//----< Demonstrating req 5 - Demonstrating persisting, unpersisting and restoring db>-------------------
public void TestR5(DBEngine <int, DBElement <int, string> > dbType1, DBEngine <string, DBElement <string, List <string> > > dbType2)
{
string dir = "..\\..\\..\\..\\input_xml\\";
string xmlFile1 = "nosqdldb_primitive.xml";
"\n\nDemonstrating Requirement #5 Primitive DB".title();
dbType1.persist_db <int, DBElement <int, string>, string>(dir + xmlFile1);
WriteLine("\nSuccesfully persisted dbengine contents to xml file :" + xmlFile1);
string xmlFile2 = "nosqdldb.xml";
"\n\nDemonstrating Requirement #5 - Collection DB".title();
dbType2.persist_db <string, DBElement <string, List <string> >, List <string>, string>(dir + xmlFile2);
WriteLine("\nSuccesfully persisted dbengine contents to xml file : " + xmlFile2);
string xmlFile3 = "read_nosqldb_primitive.xml";
"\n\nDemonstrating Requirement #5 - Augumenting DB - Primitive DB".title();
WriteLine("\n\n Before Augumenting DB from xml file : " + xmlFile3);
dbType1.showDB();
dbType1.augument_db <int, DBElement <int, string>, string>(dir + xmlFile3);
WriteLine("\n\n After Augumenting DB from xml file : " + xmlFile3);
dbType1.showDB();
string xmlFile4 = "read_nosqdldb.xml";
"\n\nDemonstrating Requirement #5 - Augumenting DB - Collection DB".title();
WriteLine("\n\n Before Augumenting DB from xml file : " + xmlFile4);
dbType2.showEnumerableDB();
dbType2.augument_db <string, DBElement <string, List <string> >, List <string>, string>(dir + 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";
"\n\nDemonstrating Requirement #5 - Restoring DB - Primitive DB".title();
WriteLine("\n\n Before Restoring DB from xml file : " + xmlFile5);
dbType1New.showDB();
dbType1New.augument_db <int, DBElement <int, string>, string>(dir + xmlFile5);
WriteLine("\n\n After Restoring DB from xml file : " + xmlFile5);
dbType1New.showDB();
string xmlFile6 = "read_nosqdldb.xml";
"\n\nDemonstrating Requirement #5 - Restoring DB - Collection DB".title();
WriteLine("\n\n Before Restoring DB from xml file : " + xmlFile6);
dbType2New.showEnumerableDB();
dbType2New.augument_db <string, DBElement <string, List <string> >, List <string>, string>(dir + xmlFile6);
WriteLine("\n\n After Restoring DB from xml file : " + xmlFile6);
dbType2New.showEnumerableDB();
}
//----< Demonstrating req 7 - Queries - Value, children of a key>-------------------
public void TestR7(DBEngine <int, DBElement <int, string> > dbType1, DBEngine <string, DBElement <string, List <string> > > dbType2)
{
"\n Demonstrating Requirement #7 - Queries - Primitive DB Contents".title();
dbType1.showDB();
"\n Demonstrating Requirement #7 - Queries - Collection DB Contents".title();
dbType2.showEnumerableDB();
QueryEngine <int, string> queryEnginePrimitive = new QueryEngine <int, string>(dbType1);
"\n Demonstrating Requirement #7A - The value of a specified key - Primitive DB".title();
DBElement <int, string> queryElementPrimitive;
IEnumerable <int> dbType1keys = dbType1.Keys();
int lastKeyDB1 = dbType1keys.Last();
Write("\n Input Key :" + lastKeyDB1);
Write("\n Value of Key \n");
queryEnginePrimitive.getValueForKey(lastKeyDB1, out queryElementPrimitive);
queryElementPrimitive.showElement();
QueryEngine <string, List <string> > queryEngine = new QueryEngine <string, List <string> >(dbType2);
"\n Demonstrating Requirement #7A - The value of a specified key - Collection DB".title();
DBElement <string, List <string> > queryElement;
IEnumerable <string> keys = dbType2.Keys();
String lastKey = keys.Last();
Write("\n Input Key :" + lastKey);
Write("\n Value of Key \n");
queryEngine.getValueForKey(lastKey, out queryElement);
queryElement.showEnumerableElement();
"\n Demonstrating Requirement #7B - The children of a specified key - Primitive DB".title();
List <int> childrenDB1 = new List <int>();
IEnumerable <int> keys1 = dbType1.Keys();
int firstKey1 = keys1.First();
Write("\n Input Key :" + firstKey1);
StringBuilder accum = new StringBuilder();
accum.Append(String.Format(" children of key: {0}", firstKey1.ToString()));
queryEnginePrimitive.getChildren(firstKey1, out childrenDB1);
childrenDB1.showkeys();
"\n Demonstrating Requirement #7B- The children of a specified key - Collection DB".title();
List <String> children;
IEnumerable <string> keys2 = dbType2.Keys();
String firstKey2 = keys2.First();
Write("\n Input Key :" + firstKey2);
StringBuilder accum2 = new StringBuilder();
accum2.Append(String.Format(" children of key: {0}", firstKey2));
queryEngine.getChildren(firstKey2, out children);
children.showkeys();
String lastKey2 = keys2.Last();
Write("\n\n Input Key :" + lastKey2);
StringBuilder accum3 = new StringBuilder();
accum3.Append(String.Format(" children of key: {0}", lastKey2));
queryEngine.getChildren(lastKey2, out children);
children.showkeys();
}
//----< Demonstrating req 2 - creating generic key/value in-memory database>-------------------
public void TestR2(DBEngine <int, DBElement <int, string> > dbType1, DBEngine <string, DBElement <string, List <string> > > dbType2, DBItemEditor editor)
{
//Demonstrating primitive type
"\nDemonstrating Requirement #2 - Primitive Type DB".title();
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";
editor.addKeyValyePair <int, String>(dbType1, elem1, DBElementExtensions.generate_int_key());
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> {
113, 116
});
elem2.payload = "Directed by Robert Zemeckis and written by Willian Broyles Jr.";
editor.addKeyValyePair <int, String>(dbType1, elem2, DBElementExtensions.generate_int_key());
dbType1.showDB();
//Demostrating IEnumberable Type
"\nDemonstrating Requirement #2 - Collection Type DB".title();
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";
editor.addKeyValyePair <string, List <String>, string>(dbType2, newerelem1, key);
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";
editor.addKeyValyePair <string, List <String>, string>(dbType2, newerelem2, key1);
dbType2.showEnumerableDB();
}
//----< Demonstrating req 4 - editing metadata,value instance of key/value collection primitive type>-------------------
public void TestR4_NonPrimitive(DBEngine <int, DBElement <int, string> > dbType1, DBEngine <string, DBElement <string, List <string> > > dbType2, DBItemEditor editor)
{
"\nDemonstrating Requirement #4 Updating Metadata - Collection Type DB".title();
IEnumerable <string> db2Keys = dbType2.Keys();
String firstDB2Key = db2Keys.ElementAt(0);
String secondDB2Key = db2Keys.ElementAt(1);
WriteLine("\n\n Before updating Metadata for key : " + firstDB2Key);
dbType2.showEnumerableDB();
WriteLine("\n\n After updating Metadata for key : " + firstDB2Key);
editor.updateMetadataInfo <string, List <string>, string>(dbType2, firstDB2Key, "Django Unchained Reborn", " German Hunter helps to resuce a slave wife");
dbType2.showEnumerableDB();
"\nDemonstrating Requirement #4 Editing Value Instance Info - Collection Type DB".title();
WriteLine("\n\n Before updating Value Instance for key : " + secondDB2Key);
dbType2.showEnumerableDB();
WriteLine("\n\n After updating Value Instance for key : " + secondDB2Key);
DBElement <string, List <string> > newerelem3 = new DBElement <string, List <string> >();
newerelem3.name = "3 Idiots Remade";
newerelem3.descr = " They think differently, even as the rest of the world called them idiots";
newerelem3.children.AddRange(new[] { "Django Unchained Remake" });
newerelem3.payload = new List <string> {
"Rajkumar Hirani", "Amir Khan", "Abhijat Joshi"
};
editor.updatePayloadInfo <string, List <string>, string>(dbType2, newerelem3, secondDB2Key);
dbType2.showEnumerableDB();
"\nDemonstrating Requirement #4 Addition of child instances - Collection DB".title();
WriteLine("\n\n Before adding child Instance :" + secondDB2Key + " to key : " + firstDB2Key);
dbType2.showEnumerableDB();
editor.addChildren <string, List <string>, string>(dbType2, firstDB2Key, secondDB2Key);
WriteLine("\n\n After adding child Instance :" + secondDB2Key + " to key :" + firstDB2Key);
dbType2.showEnumerableDB();
"\nDemonstrating Requirement #4 Removal of child instances - Collection DB".title();
string keyChild = "Django Unchained Remake";
WriteLine("\n\n Before removing child Instance :" + keyChild + " from key :" + secondDB2Key);
dbType2.showEnumerableDB();
editor.removeChildren <string, List <string>, string>(dbType2, secondDB2Key, "Django Unchained Remake");
WriteLine("\n\n After removing child Instance :" + keyChild + " from key :" + secondDB2Key);
dbType2.showEnumerableDB();
}
//----<Demonstrating categories >-------------------
public void testR12()
{
DBEngine <string, DBElement <string, List <string> > > dbType2New = new DBEngine <string, DBElement <string, List <string> > >();
string dir = "..\\..\\..\\..\\input_xml\\";
string xmlFile6 = "categories.xml";
"\n\nDemonstrating Requirement #12 - Categories DB".title();
WriteLine("\n\n Creating Categories DB from xml file : " + xmlFile6);
dbType2New.augument_db <string, DBElement <string, List <string> >, List <string>, string>(dir + xmlFile6);
dbType2New.showEnumerableDB();
"\n\nQueries on Categories DB".title();
String inputKey = "Food Products";
QueryEngine <string, List <string> > queryEngine = new QueryEngine <string, List <string> >(dbType2New);
DBElement <string, List <string> > queryElement;
IEnumerable <string> keys = dbType2New.Keys();
String first = keys.First();
queryEngine.getValueForKey(first, out queryElement);
List <String> values = queryElement.payload;
Write("\nList of keys for the db items in category \"" + inputKey + "\" are ");
foreach (String key in values)
{
Write(" {0}, ", key);
}
List <String> children;
String child = values[values.Count - 2];
queryEngine.getChildren(child, out children);
Write("\nList of categories to which \"" + values[values.Count - 2] + "\" belong are ");
foreach (String key1 in children)
{
Write(" {0}, ", key1);
}
WriteLine("\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();
}