private static void insertEntity(TableClient tableClient, Lens lens)
{
// Map the Lens object to a TableEntity to insert it
TableEntity entity = new TableEntity();
entity.PartitionKey = lens.LensType;
entity.RowKey = lens.PartNumber;
entity["FocalLength"] = lens.FocalLength;
entity["Aperture"] = lens.Aperture;
// Add the entity
tableClient.UpsertEntity(entity);
}
static void Main(string[] args)
{
// Configure the app to use the appsettings.json file
// That's where the connection string is
var builder = new ConfigurationBuilder()
.SetBasePath(Directory.GetCurrentDirectory())
.AddJsonFile("appsettings.json", optional: true, reloadOnChange: true);
IConfigurationRoot configuration = builder.Build();
// Check the syntax
if (args.Length < 1)
{
System.Console.WriteLine("Usage: LensesApp <Operation>");
return;
}
Console.WriteLine(args[0]);
// Connect to the service, using the connection string in the appsettings.json file
string tableConnectionString = configuration.GetConnectionString("LensesDatabase");
TableClient tableClient = new TableClient(tableConnectionString, "lensestable");
// Find out what the user wants to do.
if (args[0] == "PopulateTable")
{
// Create and populate the table
Console.WriteLine("Creating the Lenses table...");
tableClient.CreateIfNotExists();
Console.WriteLine("Table created. Populating...");
insertEntity(tableClient, new Lens()
{
LensType = "Prime", PartNumber = "X5018", FocalLength = "50mm", Aperture = "f1.8"
});
insertEntity(tableClient, new Lens()
{
LensType = "Zoom", PartNumber = "X357035", FocalLength = "35-70mm", Aperture = "f3.5"
});
insertEntity(tableClient, new Lens()
{
LensType = "Macro", PartNumber = "X10028", FocalLength = "100mm", Aperture = "f2.8"
});
Console.WriteLine("Tables created and populated.");
return;
}
else if (args[0] == "DisplayTable")
{
// Read the table and display it here.
Console.WriteLine("Reading the contents of the Lenses table...");
Console.WriteLine("| {0, 10} | {1, 30} | {2, 10} | {3, 10} |", "Lens Type", "Part Number", "Focal Length", "Aperture");
Pageable <TableEntity> results = tableClient.Query <TableEntity>();
foreach (TableEntity entity in results)
{
string lensType = entity.PartitionKey;
string partNumber = entity.RowKey;
object focalLength = entity["FocalLength"];
object aperture = entity["Aperture"];
Console.WriteLine("| {0, 10} | {1, 30} | {2, 10} | {3, 10} |", lensType, partNumber, focalLength, aperture);
}
return;
}
else if (args[0] == "AddLens")
{
// Check the syntax.
if (args.Length != 5)
{
System.Console.WriteLine("Usage: LensesApp AddLens <LensType> <PartNumber> <FocalLength> <Aperture>");
return;
}
// Add a lens
Lens newLens = new Lens()
{
LensType = args[1], PartNumber = args[2], FocalLength = args[3], Aperture = args[4]
};
Console.WriteLine("Adding your {0} lens...", newLens.FocalLength);
insertEntity(tableClient, newLens);
Console.WriteLine("Lens added.");
return;
}
}
