static void Export(string[] args)
{
var take = int.MaxValue;
var skip = 0;
if (Array.IndexOf(args, "--take") > 0)
{
take = int.Parse(args[Array.IndexOf(args, "--take") + 1]);
}
if (Array.IndexOf(args, "--skip") > 0)
{
skip = int.Parse(args[Array.IndexOf(args, "--skip") + 1]);
}
var sourceFileName = args[Array.IndexOf(args, "--source-file") + 1];
var targetFileName = args[Array.IndexOf(args, "--target-file") + 1];
var dir = Path.GetDirectoryName(sourceFileName);
var version = Path.GetFileNameWithoutExtension(sourceFileName);
var ix = IxInfo.Load(Path.Combine(dir, version + ".ix"));
Console.WriteLine("migrating...");
var writeTimer = new Stopwatch();
writeTimer.Start();
using (var outStream = new FileStream(targetFileName, FileMode.Create))
using (var jsonWriter = new StreamWriter(outStream, Encoding.UTF8))
using (var documents = new RDocStream(sourceFileName, ix.PrimaryKeyFieldName, skip, take))
{
jsonWriter.WriteLine("[");
foreach (var document in documents.ReadSource())
{
var dic = document.Fields.ToDictionary(x => x.Key, y => y.Value.Value);
var json = JsonConvert.SerializeObject(dic, Formatting.None);
jsonWriter.WriteLine(json);
}
jsonWriter.Write("]");
}
Console.WriteLine("write operation took {0}", writeTimer.Elapsed);
}
