private static async Task MaybeCreateDatabaseOnEmulatorAsync(DatabaseName databaseName)
{
// Try to create a database on the emulator and ignore any AlreadyExists error.
var adminClientBuilder = new DatabaseAdminClientBuilder
{
EmulatorDetection = EmulatorDetection.EmulatorOnly
};
var databaseAdminClient = await adminClientBuilder.BuildAsync();
var instanceName = InstanceName.FromProjectInstance(databaseName.ProjectId, databaseName.InstanceId);
try
{
await databaseAdminClient.CreateDatabase(new CreateDatabaseRequest
{
ParentAsInstanceName = instanceName,
CreateStatement = $"CREATE DATABASE `{databaseName.DatabaseId}`",
}).PollUntilCompletedAsync();
var connectionStringBuilder = new SpannerConnectionStringBuilder($"Data Source={databaseName}")
{
EmulatorDetection = EmulatorDetection.EmulatorOnly,
};
await CreateSampleDataModel(connectionStringBuilder.ConnectionString);
}
catch (RpcException e) when(e.StatusCode == StatusCode.AlreadyExists)
{
// Ignore
}
}
/// <inheritdoc />
public override async Task <bool> ExistsAsync(CancellationToken cancellationToken = default)
{
try
{
var adminClientBuilder = new DatabaseAdminClientBuilder
{
EmulatorDetection = EmulatorDetection.EmulatorOrProduction
};
var databaseAdminClient = await adminClientBuilder.BuildAsync(cancellationToken);
await databaseAdminClient.GetDatabaseAsync(_connection.DbConnection.DataSource, cancellationToken);
}
catch (RpcException e) when(e.StatusCode == StatusCode.NotFound)
{
return(false);
}
return(true);
}
