public void TestR7()
{
"Demonstrating Requirement #7".title('=');
WriteLine();
"Adding elements to db".title();
WriteLine();
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 = new DateTime(2015,10,(2+i));
elem.children.AddRange(new List<string> { "one", "two", "three" });
elem.payload = new List<string>{ "elem's payload1","payload2","payload 3"};
elem.showEnumerableElement();
WriteLine();
enum_db.insert((12345+i).ToString(), elem);
}
"current DB status:".title();
enum_db.showEnumerableDB();
IQuery<string, DBElement<string, List<string>>> i_query = new DBEngine<string, DBElement<string, List<string>>>();
QueryEngine<string, DBElement<string, List<string>>> qe = new QueryEngine<string, DBElement<string, List<string>>>(enum_db);
QueryPredicate qp = new QueryPredicate();
qp.key_value_search(enum_db, out i_query, qe);
WriteLine();
qp.key_children_search(enum_db, out i_query, qe);
WriteLine();
qp.pattern_matching(enum_db, out i_query, qe, "12345");
WriteLine();
qp.pattern_matching(enum_db, out i_query, qe);
WriteLine();
qp.metadata_string(enum_db, out i_query, qe);
WriteLine();
DateTime start = new DateTime(2015, 10, 4);
DateTime end = new DateTime(2015, 10, 5);
qp.date_time_specific(enum_db, out i_query, qe, start, end);
WriteLine();
qp.default_date_time_specific(enum_db, out i_query, qe, start);
WriteLine();
}
static void Main(string[] args)
{
DBEngine<string, DBElement<string, List<string>>> db = new DBEngine<string, DBElement<string, List<string>>>();
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 = new DateTime(2015, 10, (2 + i));
elem.children.AddRange(new List<string> { "element1", "element2", "element3" });
elem.payload = new List<string> { "elem's payload1", "elem's payload2" };
elem.showEnumerableElement();
WriteLine();
db.insert("element"+(12345 + i).ToString(), elem);
}
for (int i = 0; i < 3; i++)
{
DBElement <string, List<string>> elem = new DBElement<string, List<string>>();
elem.name = "db data";
elem.descr = "db data description";
elem.timeStamp = DateTime.Now;
elem.children.AddRange(new List<string> { "element12345", "element12346", "element12347" });
elem.payload = new List<string> { "elem's payload1", "elem's payload2" };
elem.showEnumerableElement();
WriteLine();
db.insert("element"+(i+1).ToString(), elem);
}
IQuery<string, DBElement<string, List<string>>> i_query = new DBEngine<string, DBElement<string, List<string>>>();
QueryEngine<string, DBElement<string, List<string>>> qe = new QueryEngine<string, DBElement<string, List<string>>>(db);
//<---- creating a query predicate object and calling each query on given test database --->
QueryPredicate qp = new QueryPredicate();
qp.key_value_search(db, i_query, qe);
WriteLine();
qp.key_children_search(db, i_query, qe);
WriteLine();
qp.pattern_matching(db, i_query, qe);
WriteLine();
qp.default_pattern_matching(db, i_query, qe);
WriteLine();
qp.metadata_string(db, i_query, qe);
WriteLine();
qp.date_time_specific(db, i_query, qe);
WriteLine();
qp.default_date_time_specific(db, i_query, qe);
WriteLine();
}
private void string_metadata(out string str, ref IEnumerator<string> msg_enumerator, DBEngine<string, DBElement<string, List<string>>> db)
{
IQuery<string, DBElement<string, List<string>>> i_query = new DBEngine<string, DBElement<string, List<string>>>();
QueryEngine<string, DBElement<string, List<string>>> qe = new QueryEngine<string, DBElement<string, List<string>>>(db);
QueryPredicate qp = new QueryPredicate();
string search = "";
str = "";
msg_enumerator.MoveNext();
msg_enumerator.MoveNext();
search = msg_enumerator.Current.ToString();
DBElement<string, List<string>> ele = new DBElement<string, List<string>>();
if (qp.metadata_string(db, out i_query, qe, search))
{
foreach (var key in i_query.Keys())
{
if (i_query.getValue(key, out ele))
{
str += " Element with string:" + search + " found in Database.\n Key: "+ key +"\nValue at given key: " + ele.showElement<string, List<string>, string>();
}
}
}
else
{
str = "Element with string: " + search + " in metadata Not found in Database.\n";
}
}
private void time_date_inerval(out string str, ref IEnumerator<string> msg_enumerator, DBEngine<string, DBElement<string, List<string>>> db)
{
IQuery<string, DBElement<string, List<string>>> i_query = new DBEngine<string, DBElement<string, List<string>>>();
QueryEngine<string, DBElement<string, List<string>>> qe = new QueryEngine<string, DBElement<string, List<string>>>(db);
QueryPredicate qp = new QueryPredicate();
DateTime start = new DateTime();
DateTime end = new DateTime();
str = "";
bool flag = false;
while (msg_enumerator.MoveNext()) {
switch(msg_enumerator.Current.ToString())
{
case "sdate-time":
msg_enumerator.MoveNext();
DateTime.TryParse(msg_enumerator.Current.ToString(), out start);
break;
case "edate-time":
msg_enumerator.MoveNext();
if (msg_enumerator.Current.ToString() != "" && DateTime.TryParse(msg_enumerator.Current.ToString(), out end)) ;
else
flag = true;
break;
}
}
DBElement<string, List<string>> ele = new DBElement<string, List<string>>();
if (flag && qp.default_date_time_specific(db, out i_query, qe, start))
{
foreach (var key in i_query.Keys())
if (i_query.getValue(key, out ele))
str += " Element within timespan starting:" + start + " and ending: " + DateTime.Now + " found in Database.\n Key: " + key + "\nValue at given key: " + ele.showElement<string, List<string>, string>();
}
else if (qp.default_date_time_specific(db, out i_query, qe, start, end))
{
foreach (var key in i_query.Keys())
{
if (i_query.getValue(key, out ele))
{
str += " Element within timespan starting:" + start + " and ending: " + end + " found in Database.\n Key: " + key + "\nValue at given key: " + ele.showElement<string, List<string>, string>();
}
}
} else
{
str = "Element within timespan: " + start + " and ending: " + end + " Not found in Database.\n";
}
}
private void search_key_value(out string str, ref IEnumerator<string> msg_enumerator, DBEngine<string, DBElement<string, List<string>>> db)
{
IQuery<string, DBElement<string, List<string>>> i_query = new DBEngine<string, DBElement<string, List<string>>>();
QueryEngine<string, DBElement<string, List<string>>> qe = new QueryEngine<string, DBElement<string, List<string>>>(db);
QueryPredicate qp = new QueryPredicate();
string search = "";
msg_enumerator.MoveNext();
msg_enumerator.MoveNext();
search = msg_enumerator.Current.ToString();
DBElement<string, List<string>> ele = new DBElement<string, List<string>>();
if (qp.key_value_search(db, out i_query, qe, search))
{
i_query.getValue(search, out ele);
str = " Key: " + search + " found in Database.\n Value at given key: " + ele.showElement<string, List<string>, string>();
}
else
{
str = "Key: " + search + " Not found in Database.\n";
}
}
