static void Main(string[] args)
{
// Initialise the pattern provider with a list of 4 properties.
using (var pattern = new PatternWrapper(
new FileInfo("..\\..\\..\\..\\..\\data\\51Degrees-LiteV3.2.dat").FullName,
new[] { "Id", "DeviceType", "IsMobile", "ScreenPixelsWidth", "ScreenPixelsHeight" }))
{
// Initialise the trie provider with a data file and a list of 4 properties.
using (var trie = new TrieWrapper(
new FileInfo("..\\..\\..\\..\\..\\data\\51Degrees-LiteV3.2.trie").FullName,
new[] { "Id", "DeviceType", "IsMobile", "ScreenPixelsWidth", "ScreenPixelsHeight" }))
{
// IMPORTANT: For a full list of properties see: https://51degrees.com/resources/property-dictionary
using (var reader = new FileInfo(args.Length > 0 ? args[0] : "..\\..\\..\\..\\..\\data\\20000 User Agents.csv").OpenText())
{
var start = DateTime.UtcNow;
Console.WriteLine("Started -> {0}", start);
var line = reader.ReadLine();
while (line != null)
{
using (var patternResults = pattern.Match(line.Trim()))
{
Output(pattern, patternResults);
}
using (var trieResults = trie.Match(line.Trim()))
{
Output(trie, trieResults);
}
line = reader.ReadLine();
}
Console.WriteLine("Elapsed Time -> {0} seconds", (DateTime.UtcNow - start).TotalSeconds);
}
}
}
Console.ReadKey();
}
/// <summary>
/// Represents payload for a thread. Function opens the file with
/// User-Agent strings and runs device detection for each User-Agent.
/// Hash is computed for each detection and the XORed with the
/// existing hash to verify that reloading the dataset did not affect
/// the detection.
/// </summary>
public void threadPayload()
{
// Local variables.
long hash = 0L;
int recordsProcessed = 0;
IMatchResult match;
// Open file containing User-Agent strings for read.
using (FileStream fs = File.Open(userAgentsFile,
FileMode.Open,
FileAccess.Read,
FileShare.ReadWrite))
using (BufferedStream bs = new BufferedStream(fs))
using (StreamReader sr = new StreamReader(bs))
{
// Read next line.
string line;
while ((line = sr.ReadLine()) != null)
{
// Performs detection. Disposes of match.
using (match = provider.Match(line))
{
// Compute hash for this match.
hash ^= getHash(match);
// Update count of processed User-Agent lines.
recordsProcessed++;
}
}
}
// When thread is finished increment threadsFinished counter and
// Report on the progress
cb.Add(hash);
Interlocked.Increment(ref threadsFinished);
Console.WriteLine("Thread complete with hash code: " + hash +
" and records processed: " + recordsProcessed);
}