public void CopyTable()
{
// TODO: Make this simpler in the wrapper
var projectId = _fixture.ProjectId;
var datasetId = _fixture.GameDatasetId;
var historyTableId = _fixture.HistoryTableId;
var destinationTableId = Guid.NewGuid().ToString().Replace('-', '_');
if (!WaitForStreamingBufferToEmpty(historyTableId))
{
Console.WriteLine("Streaming buffer not empty after 30 seconds; not performing export");
return;
}
// Sample: CopyTable
BigqueryClient client = BigqueryClient.Create(projectId);
Job job = client.Service.Jobs.Insert(new Job
{
Configuration = new JobConfiguration
{
Copy = new JobConfigurationTableCopy
{
DestinationTable = client.GetTableReference(datasetId, destinationTableId),
SourceTable = client.GetTableReference(datasetId, historyTableId)
}
}
}, projectId).Execute();
// Wait until the copy has finished.
client.PollJob(job.JobReference);
// Now list its rows
BigqueryResult result = client.ListRows(datasetId, destinationTableId);
foreach (BigqueryResult.Row row in result.Rows)
{
DateTime timestamp = (DateTime)row["game_started"];
long level = (long)row["level"];
long score = (long)row["score"];
string player = (string)row["player"];
Console.WriteLine($"{player}: {level}/{score} ({timestamp:yyyy-MM-dd HH:mm:ss})");
}
// End sample
var originalRows = client.ListRows(datasetId, historyTableId).Rows.Count();
var copiedRows = result.Rows.Count();
Assert.Equal(originalRows, copiedRows);
}
// [END list_projects]
// [START list_rows]
public int ListRows(
string projectId, string datasetId, string tableId, int numberOfRows, BigqueryClient client)
{
int recordCount = 0;
var result = client.ListRows(projectId, datasetId, tableId, null,
new ListRowsOptions {
PageSize = numberOfRows
});
foreach (var row in result.Take(numberOfRows))
{
Console.WriteLine($"{row["word"]}: {row["corpus"]}");
recordCount++;
}
return(recordCount);
}
// [END list_rows]
// [START browse_table]
public int TableDataList(
string datasetId, string tableId, int pageSize, BigqueryClient client)
{
int recordCount = 0;
var result = client.ListRows(datasetId, tableId, null,
new ListRowsOptions {
PageSize = pageSize
});
// If there are more rows than were returned in the first page of results,
// iterating over the rows will lazily evaluate the results each time,
// making further requests as necessary.
foreach (var row in result)
{
Console.WriteLine($"{row["title"]}: {row["unique_words"]}");
recordCount++;
}
return(recordCount);
}
// [END stream_row]
// [START export_to_cloud_storage]
public void ExportJsonToGcs(
string datasetId, string tableId, string bucketName, string fileName, BigqueryClient client)
{
StorageClient gcsClient = StorageClient.Create();
string contentType = "application/json";
// Get Table and append results into StringBuilder.
var result = client.ListRows(datasetId, tableId);
StringBuilder sb = new StringBuilder();
foreach (var row in result)
{
sb.Append($"{{\"title\" : \"{row["title"]}\", \"unique_words\":\"{row["unique_words"]}\"}}{Environment.NewLine}");
}
// Save stream to Google Cloud Storage.
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(sb.ToString())))
{
var obj = gcsClient.UploadObject(bucketName, fileName, contentType, stream);
}
}
// [END export_to_cloud_storage]
public void ExportCsvToGcs(
string datasetId, string tableId, string bucketName, string fileName, BigqueryClient client)
{
StorageClient gcsClient = StorageClient.Create();
string contentType = "text/csv";
// Get Table and input results into StringBuilder.
var result = client.ListRows(datasetId, tableId);
StringBuilder sb = new StringBuilder();
// Create header row.
sb.Append($"title, unique_words,{Environment.NewLine}");
foreach (var row in result.Rows)
{
sb.Append($"{row["title"]}, {row["unique_words"]},{Environment.NewLine}");
}
// Save stream to Google Cloud Storage.
using (var stream = new MemoryStream(Encoding.UTF8.GetBytes(sb.ToString())))
{
var obj = gcsClient.UploadObject(bucketName, fileName, contentType, stream);
}
}
public void ListRows()
{
string projectId = _fixture.ProjectId;
string datasetId = _fixture.GameDatasetId;
string tableId = _fixture.HistoryTableId;
// Snippet: ListRows(*,*,*)
BigqueryClient client = BigqueryClient.Create(projectId);
BigqueryResult result = client.ListRows(datasetId, tableId);
foreach (BigqueryResult.Row row in result.Rows)
{
DateTime timestamp = (DateTime)row["game_started"];
long level = (long)row["level"];
long score = (long)row["score"];
string player = (string)row["player"];
Console.WriteLine($"{player}: {level}/{score} ({timestamp:yyyy-MM-dd HH:mm:ss})");
}
// End snippet
// We set up 7 results in the fixture. Other tests may add more.
Assert.True(result.Rows.Count() >= 7);
}