public async Task <Tuple <long, List <ITermDocument> > > simulateIndexer(String path)
{
var stemmer = new Stemmer();
Console.WriteLine("ree");
var reader = new StreamReader(Path.Combine(await _corpus.GetRepository(), path));
var list = new List <string>(Regex.Split(Regex.Replace(
reader.ReadToEnd(),
"[^a-zA-Z0-9']+",
" "
).Trim(), "\\s+"));
reader.Close();
//Document Length
long length = list.Count;
//Adding Term's Path for indexing.
list.AddRange(Regex.Split(Regex.Replace(
path,
"[^a-zA-Z0-9']",
" "
).Trim(), "\\s+"));
var termDict = new Dictionary <string, ITermDocument>();
var docDict = new Dictionary <string, IDocumentReference>();
for (int i = 0; i < list.Count; i++)
{
var word = list[i].ToLower();
var rootWord = stemmer.StemWord(word);
ITermDocument term;
if (termDict.Keys.Contains(rootWord))
{
term = termDict[rootWord];
}
else
{
term = new TermDocument(rootWord);
termDict.Add(rootWord, term);
}
IDocumentReference docref;
if (docDict.Keys.Contains(word))
{
docref = docDict[word];
}
else
{
docref = new DocumentReference("", word);
docDict.Add(word, docref);
term.addDoc(docref);
}
docref.addPos(i);
}
return(Tuple.Create(length, termDict.Values.ToList()));
}
/// <summary>
/// Generates the token.
/// </summary>
/// <param name="text">This is the string which is passed into the method.</param>
public Tuple <int, List <ITermDocument> > Tokenize(string text)
{
var termDict = new Dictionary <string, ITermDocument>();
var docDict = new Dictionary <string, IDocumentReference>();
var stripped_text = strip(text);
//Document Length
var length = stripped_text.Length;
for (int i = 0; i < stripped_text.Length; i++) //Loop through the list
{
var word = stripped_text[i];
//Remove stopwords
if (_stopWords.Contains(stripped_text[i]))
{
length -= 1;
continue;
}
var rootWord = _stemmer.StemWord(word.ToLower());
ITermDocument term;
if (termDict.ContainsKey(rootWord)) //Check if the word has already been added to the dictionary
{
term = termDict[rootWord];
}
else //Add words to the dictionary
{
term = new TermDocument(rootWord);
termDict.Add(rootWord, term);
}
IDocumentReference docref;
if (docDict.ContainsKey(word)) //Check if document reference contains word
{
docref = docDict[word];
}
else
{
docref = new DocumentReference("", word);
docDict.Add(word, docref);
term.addDoc(docref);
}
docref.addPos(i);
}
return(Tuple.Create(length, termDict.Values.ToList()));
}
public async Task Default()
{
_database.DropCollection("Root");
_database.DropCollection("DocumentsTable");
_database.DropCollection("InvertedTable");
var doc = new BsonDocument
{
{ "_id", new ObjectId("1") },
{ "path", "1.txt" },
{ "length", long.Parse("6") }
};
var doc1 = new BsonDocument
{
{ "_id", new ObjectId("2") },
{ "path", "2.txt" },
{ "length", long.Parse("4") }
};
await _documentsTable.InsertOneAsync(doc);
await _documentsTable.InsertOneAsync(doc1);
doc = new BsonDocument
{
{ "_id", "1" },
{ "no_docs", 2 },
{ "repo", "C:/Users/kooldeji/Documents/repo" },
{ "crawled", long.Parse("0") }
};
await _root.InsertOneAsync(doc);
var index = new List <KeyValuePair <string, string> >();
var termdict = new Dictionary <string, TermDocument>();
var docdict = new Dictionary <string, DocumentReference>();
var id = "1";
index.Add(new KeyValuePair <string, string>("life", "life"));
index.Add(new KeyValuePair <string, string>("is", "is"));
index.Add(new KeyValuePair <string, string>("learn", "learning"));
index.Add(new KeyValuePair <string, string>("with", "with"));
index.Add(new KeyValuePair <string, string>("learn", "learners"));
var c = 0;
foreach (var item in index)
{
c += 1;
if (item.Key.Count() <= 2)
{
continue;
}
TermDocument term;
if (termdict.Keys.Contains(item.Key))
{
term = termdict[item.Key];
}
else
{
term = new TermDocument(item.Key);
termdict.Add(item.Key, term);
}
DocumentReference docref;
if (docdict.Keys.Contains(item.Key + item.Value))
{
docref = docdict[item.Key + item.Value];
}
else
{
docref = new DocumentReference(id, item.Value);
term.addDoc(docref);
}
docref.addPos(c);
}
id = "2";
docdict = new Dictionary <string, DocumentReference>();
index.Clear();
index.Add(new KeyValuePair <string, string>("learn", "learning"));
index.Add(new KeyValuePair <string, string>("is", "is"));
index.Add(new KeyValuePair <string, string>("very", "very"));
index.Add(new KeyValuePair <string, string>("good", "good"));
index.Add(new KeyValuePair <string, string>("infact", "infact"));
index.Add(new KeyValuePair <string, string>("learn", "learning"));
index.Add(new KeyValuePair <string, string>("is", "is"));
index.Add(new KeyValuePair <string, string>("awesome", "awesome"));
foreach (var item in index)
{
c += 1;
if (item.Key.Count() <= 2)
{
continue;
}
TermDocument term;
if (termdict.Keys.Contains(item.Key))
{
term = termdict[item.Key];
}
else
{
term = new TermDocument(item.Key);
termdict.Add(item.Key, term);
}
DocumentReference docref;
if (docdict.Keys.Contains(item.Key + item.Value))
{
docref = docdict[item.Key + item.Value];
}
else
{
docref = new DocumentReference("", item.Value);
docdict.Add(item.Key + item.Value, docref);
term.addDoc(docref);
}
docref.addPos(c);
}
await _invertedTable.InsertManyAsync(termdict.Values);
}
