search.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Collections;
using System.IO;

namespace Search
{
    struct Index
    {
        public string Document;
        public ulong Occurences;

        public override string ToString()
        {
            return "Document : " + Document + "\n" + "Occurences : " + Occurences.ToString() + "\n\n";
        }

    }
    class Program
    {
        static Hashtable mIndexs = new Hashtable();
        static void Main(string[] args)
        {
            string FilesPath = @"y:\sample";// Console.ReadLine();
            string[] files = Directory.GetFiles(FilesPath, "*.txt");
            Parallel.ForEach(files, (f) => {
                parseFile(f);
            });


        }
        static void parseFile(string path)
        {
            Hashtable temp = new Hashtable();
            string content = File.ReadAllText(path);
            content = content.Replace("\r" , "");
            content = content.Replace("\n" , " ");
            string[] words = content.Split(' ');
            foreach (string word in words)
            {
                if (temp[word] == null)
                    temp.Add(word, ulong.MinValue);
                ulong matches =(ulong) temp[word];
                matches++;
                temp[word] = matches;
            }
            if (temp.Contains(""))
                temp.Remove("");
            foreach (string key in temp.Keys)
            {
                lock (mIndexs)
                {
                    if (mIndexs[key] == null)
                        mIndexs[key] = new List<Index>();
                    Index i = new Index();
                    i.Document = path;
                    i.Occurences = (ulong)temp[key];
                    ((List<Index>) mIndexs[key]).Add(i);
                }
            }
        }

    }
}