public static void Convert(GeneralUris generalUris, string srcFile, string destDir, SiteInfo website)
{
string fileNameOnly = Path.GetFileName(srcFile);
Console.WriteLine("Processing {0} ...", fileNameOnly);
var siteUris = new SiteUris(generalUris, website);
var nsMapper = siteUris.CreateNamespaceMapper();
using (var destWriter = new SequentialTurtleWriter(File.CreateText(Path.Combine(destDir, website + "-" + Path.GetFileNameWithoutExtension(srcFile) + ".ttl")), nsMapper)) {
using (var fs = File.OpenRead(srcFile)) {
using (var reader = XmlReader.Create(fs)) {
while (reader.NodeType != XmlNodeType.Element)
{
if (!reader.Read())
{
ConsoleHelper.WriteErrorLine("No contents found in file {0}.", srcFile);
return;
}
}
switch (reader.LocalName)
{
case "badges":
ConsoleHelper.WriteInfoLine("List of badges identified.");
ConvertBadges(siteUris, reader, destWriter);
break;
case "comments":
ConsoleHelper.WriteInfoLine("List of comments identified.");
ConvertComments(siteUris, reader, destWriter);
break;
case "posthistory":
ConsoleHelper.WriteInfoLine("List of posthistory identified.");
ConvertPostHistory(siteUris, reader, destWriter);
break;
case "postlinks":
ConsoleHelper.WriteInfoLine("List of postlinks identified.");
ConvertPostLinks(siteUris, reader, destWriter);
break;
case "posts":
ConsoleHelper.WriteInfoLine("List of posts identified.");
ConvertPosts(siteUris, reader, destWriter);
break;
case "tags":
ConsoleHelper.WriteInfoLine("List of tags identified.");
ConvertTags(siteUris, reader, destWriter);
break;
case "users":
ConsoleHelper.WriteInfoLine("List of users identified.");
ConvertUsers(siteUris, reader, destWriter);
break;
case "votes":
ConsoleHelper.WriteInfoLine("List of votes identified.");
ConvertVotes(siteUris, reader, destWriter);
break;
default:
ConsoleHelper.WriteWarningLine("Unknown root element \"{0}\". Skipping document.", reader.LocalName);
break;
}
}
}
GlobalData.UpdateStats(destWriter);
}
Console.WriteLine("Conversion of {0} completed.", fileNameOnly);
}
/// <summary>
/// Downloads and converts the data.
/// </summary>
/// <param name="generalUris">An object that provides general URIs used in the exported dataset.</param>
/// <param name="filelist">The URL of a filelist Xml file.</param>
/// <exception cref="ArgumentNullException">Any of the arguments is <see langword="null"/>.</exception>
private static void RetrieveData(GeneralUris generalUris, Uri filelist)
{
if (generalUris == null)
{
throw new ArgumentNullException("generalUris");
}
if (filelist == null)
{
throw new ArgumentNullException("filelist");
}
string tempDir = Path.Combine(BaseDir, "tmp");
string destDir = Path.Combine(BaseDir, "rdf");
Directory.CreateDirectory(tempDir);
Directory.CreateDirectory(destDir);
DateTime startTime = DateTime.Now;
ConsoleHelper.WriteInfoLine("Current time: {0:yyyy-MM-dd HH:mm:ss}", startTime);
if (!GlobalData.Options.OntologyOnly)
{
ConsoleHelper.WriteMilestone("Downloading files list ...");
using (var client = new WebClient()) {
client.DownloadFile(filelist, Path.Combine(tempDir, "files.xml"));
}
Console.WriteLine(" done.");
var files = LoadFilesList(Path.Combine(tempDir, "files.xml")).OrderBy(f => f).ToArray();
ConsoleHelper.WriteInfoLine("{0} file(s) in list, totalling to a compressed size of {1:F1} GB.",
files.Length, (double)files.Sum(f => f.Size) / 1024 / 1024 / 1024);
int processedFilesCount = 0;
foreach (var f in files)
{
SiteInfo siteInfo;
try {
siteInfo = f.RetrieveSiteInfo();
}
catch (ArgumentException ex) {
ConsoleHelper.WriteErrorLine("Skipping file {0}, as it cannot be associated with a website.\n{1}", f, ex);
continue;
}
if (IncludeSite(siteInfo))
{
GlobalData.Sites[siteInfo.Id] = siteInfo;
if (!GlobalData.Options.SiteListOnly)
{
string fn = f.Download(filelist, tempDir);
string[] rawFiles = null;
switch (Path.GetExtension(fn))
{
case ".7z":
rawFiles = ExtractSevenZipArchive(fn);
break;
default:
ConsoleHelper.WriteWarningLine("File {0} has an unknown file extension.", fn);
break;
}
if (rawFiles != null)
{
ConsoleHelper.WriteInfoLine("{0} file(s) extracted.", rawFiles.Length);
foreach (var rawFile in rawFiles)
{
Converter.Convert(generalUris, rawFile, destDir, siteInfo);
}
}
}
processedFilesCount++;
if (processedFilesCount >= GlobalData.Options.MaxFileCount)
{
break;
}
}
}
}
GlobalInformationConverter.Convert(generalUris, tempDir, filelist, destDir);
if (!GlobalData.Options.KeepTemporaryFiles)
{
Console.Write("Removing temporary files ... ");
try {
Directory.Delete(tempDir, true);
Console.WriteLine(" done.");
}
catch {
ConsoleHelper.WriteErrorLine("Please remove the directory {0} manually.", tempDir);
}
}
Console.WriteLine();
GlobalData.PrintStats();
DateTime endTime = DateTime.Now;
ConsoleHelper.WriteInfoLine("Current time: {0:yyyy-MM-dd HH:mm:ss}", endTime);
ConsoleHelper.WriteInfoLine("Total duration: {0}", endTime - startTime);
}