/// <summary>
/// Write the query response into a file.
/// </summary>
public async Task PrintToFileAsync(string path)
{
using var output = File.OpenWrite(path);
using var tsvWriter = new TsvWriter(output);
await PrintToTsvWriterAsync(tsvWriter);
}
/// <summary>
/// Write the query response into a file.
/// </summary>
public void PrintToFile(string path)
{
using var output = File.OpenWrite(path);
using var tsvWriter = new TsvWriter(output);
PrintToTsvWriter(tsvWriter);
}
public void TsvWriter_Basics()
{
String8Block block = new String8Block();
String8 valueNoEscaping = block.GetCopy("Sample Description");
String8 valueEscaping = block.GetCopy("Value\tWith\nIssues");
String8 t = block.GetCopy("T");
using (TsvWriter writer = new TsvWriter("TsvWriter.tsv"))
{
writer.SetColumns(new string[] { "LineNumber", "IsEven", "Code", "When", "WhenDay", "Count", "Description", "Source" });
Assert.AreEqual(0, writer.RowCountWritten);
int sum = 0;
for (int i = 0; i < 10; ++i)
{
Assert.AreEqual(i, writer.RowCountWritten);
sum += i;
// Test write for non-String8 types
writer.Write(i);
writer.Write((i % 2 == 0));
writer.Write((byte)'Z');
writer.Write(new DateTime(2016, 02, 03, 04, 05, 06, DateTimeKind.Utc));
writer.Write(new DateTime(2016, 12, 23, 0, 0, 0, DateTimeKind.Utc));
// Test writing partial values
writer.WriteValueStart();
writer.WriteValuePart((byte)'[');
writer.WriteValuePart(sum);
writer.WriteValuePart(true);
writer.WriteValuePart(t);
writer.WriteValuePart((byte)']');
writer.WriteValueEnd();
// Test String8 writing with and without values to escape
writer.Write(valueNoEscaping);
writer.Write(valueEscaping);
writer.NextRow();
}
}
string tsvContent = File.ReadAllText("TsvWriter.tsv");
Trace.WriteLine(tsvContent);
// Verify header is as expected
Assert.IsTrue(tsvContent.StartsWith("LineNumber\tIsEven\tCode\tWhen\tWhenDay\tCount\tDescription\tSource\r\n"));
// Verify illegal characters are stripped
Assert.IsTrue(tsvContent.Contains("ValueWithIssues"));
// Verify the first row fully
Assert.IsTrue(tsvContent.Contains("1\tfalse\tZ\t2016-02-03T04:05:06Z\t2016-12-23\t[1trueT]\tSample Description\tValueWithIssues\r\n"));
}
/// <summary>
/// Output the query result into a TsvWriter instance
/// </summary>
public void PrintToTsvWriter(TsvWriter output)
{
output.WriteLine(table.ColumnNames);
var values = new string[table.ColumnNames.Length];
foreach (var item in cursor)
{
table.GetStringValues(item, values);
output.WriteLine(values);
}
}
/// <summary>
/// Output the query result into a TsvWriter instance
/// </summary>
public async Task PrintToTsvWriterAsync(TsvWriter output)
{
await output.WriteLineAsync(table.ColumnNames);
var values = new string[table.ColumnNames.Length];
T item;
while ((item = await cursor.FetchNextAsync()) != null)
{
table.GetStringValues(item, values);
await output.WriteLineAsync(values);
}
}
/// <summary>
/// Converts the records to TSV representation and
/// compresses the results.
/// </summary>
internal void SerializeCompress()
{
using var ms = new MemoryStream();
using (var gzip = new GZipStream(ms, CompressionMode.Compress))
using (var tsv = new TsvWriter(gzip)) {
tsv.WriteLine(Header);
var values = new string[Header.Length];
foreach (T record in this.data.Values)
{
table.GetStringValues(record, values);
tsv.WriteLine(values);
}
}
rawCompressedData = ms.ToArray();
}
/// <summary>
/// Output the query result into a Stream instance
/// </summary>
public void PrintToStream(Stream stream)
{
using var tsvWriter = new TsvWriter(stream);
PrintToTsvWriter(tsvWriter);
}
/// <summary>
/// Print the query result to the standard output
/// </summary>
public async Task PrintAsync()
{
using var tsvWriter = new TsvWriter(Console.Out);
await PrintToTsvWriterAsync(tsvWriter);
}
/// <summary>
/// Print the query result to the standard output
/// </summary>
public void Print()
{
using var tsvWriter = new TsvWriter(Console.Out);
PrintToTsvWriter(tsvWriter);
}
/// <summary>
/// Output the query result into a Stream instance
/// </summary>
public async Task PrintToStreamAsync(Stream stream)
{
using var tsvWriter = new TsvWriter(stream);
await PrintToTsvWriterAsync(tsvWriter);
}
