public DeleteTableResponse DeleteTable(DeleteTableRequest request)
{
try
{
var options = new TransactionOptions()
{
IsolationLevel = System.Transactions.IsolationLevel.Serializable,
Timeout = new TimeSpan(0, TransactionTimeout, 0)
};
using (var trScope = new TransactionScope(TransactionScopeOption.Required, options))
{
List <DroppedDependencyDbo> droppedKeys = DeleteTheTable(request.Table, request.disableDependencies);
var rzlt = new DeleteTableResponse()
{
DroppedDependencies = droppedKeys,
ErrorMessage = String.Format("Table '{0}' is deleted.", request.Table),
IsSuccess = true
};
string logMsg = String.Format("Table {0} was deleted.", request.Table);
Guid historyRecordId = LogTableOperation(request.Table, logMsg, request.CFC_DB_Major_Version,
request.CFC_DB_Minor_Version);
trScope.Complete();
return(rzlt);
}
}
catch (Exception ex)
{
return(new DeleteTableResponse()
{
IsSuccess = false, ErrorMessage = ex.Message
});
}
}
public static async Task <DescribeTableResponse> WaitTillTableDeleted(IAmazonDynamoDB client, string tableName,
DeleteTableResponse response)
{
DescribeTableResponse resp = new DescribeTableResponse();
var tableDescription = response.TableDescription;
string status = tableDescription.TableStatus;
Int32 sleepDuration = 1000; // One second
while ((status == "DELETING") && (sleepDuration < 10000))
{
System.Threading.Thread.Sleep(sleepDuration);
resp = await client.DescribeTableAsync(new DescribeTableRequest
{
TableName = tableName
});
status = resp.Table.TableStatus;
sleepDuration *= 2;
}
return(resp);
}
public void DeleteTable(string tableName)
{
if (dynamoService == null || string.IsNullOrEmpty(tableName))
{
return;
}
try
{
dynamoService.RestartDynamoDBContext();
using (IAmazonDynamoDB client = dynamoService.DynamoClient)
{
DeleteTableRequest deleteTableRequest = new DeleteTableRequest(tableName.ToLower());
DeleteTableResponse deleteTableResponse = client.DeleteTable(deleteTableRequest);
TableDescription tableDescription = deleteTableResponse.TableDescription;
TableStatus tableStatus = tableDescription.TableStatus;
ConsoleHelper.Write("\nDelete table ");
ConsoleHelper.Write(tableName.ToUpper(), ConsoleColor.Yellow);
ConsoleHelper.Write(" command sent to Amazon, status after deletion: ");
ConsoleHelper.Write(tableDescription.TableStatus, ConsoleColor.Green);
}
}
catch (AmazonDynamoDBException exception)
{
ConsoleHelper.Write(string.Format("Exception while deleting new dynamoDB table: {0}", exception.Message), ConsoleColor.Red);
ConsoleHelper.WriteLine(string.Concat("Error code: {0}, error type: {1}", exception.ErrorCode, exception.ErrorType), ConsoleColor.Red);
}
}
private async Task WaitTillTableDeletedAsync(string tableName, DeleteTableResponse response)
{
var tableDescription = response.TableDescription;
string status = tableDescription.TableStatus;
// Wait until table is created. Call DescribeTable
try
{
while (status == "DELETING")
{
System.Threading.Thread.Sleep(5000);
var res = await _dynamoDbClient.DescribeTableAsync(new DescribeTableRequest
{
TableName = tableName
});
status = res.Table.TableStatus;
}
}
catch (ResourceNotFoundException)
{
// Table deleted
}
}
/// <summary>
/// Unmarshaller the response from the service to the response class.
/// </summary>
/// <param name="context"></param>
/// <returns></returns>
public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
{
DeleteTableResponse response = new DeleteTableResponse();
return(response);
}
private static void WaitTillTableDeleted(AmazonDynamoDBClient client, string tableName,
DeleteTableResponse response)
{
var tableDescription = response.TableDescription;
string status = tableDescription.TableStatus;
Console.WriteLine(tableName + " - " + status);
// Let us wait until table is created. Call DescribeTable
try
{
while (status == "DELETING")
{
System.Threading.Thread.Sleep(5000); // wait 5 seconds
var res = client.DescribeTable(new DescribeTableRequest
{
TableName = tableName
});
Console.WriteLine("Table name: {0}, status: {1}", res.Table.TableName,
res.Table.TableStatus);
status = res.Table.TableStatus;
}
}
catch (ResourceNotFoundException)
{
// Table deleted.
}
}
public void CreateTable(CreateTableRequest request)
{
TableDescription tableDescription;
var tableExists = TableExists(request.TableName);
if (tableExists)
{
Console.WriteLine("Table found, deleting");
DeleteTableResponse deleteResponse = Client.DeleteTableAsync(request.TableName).Result;
Assert.AreEqual(HttpStatusCode.OK, deleteResponse.HttpStatusCode);
tableDescription = Client.DescribeTableAsync(request.TableName).Result.Table;
Assert.AreEqual(TableStatus.DELETING, tableDescription.TableStatus);
do
{
System.Threading.Thread.Sleep(200);
tableExists = TableExists(request.TableName);
Console.WriteLine("Table found after deleting, waiting.");
} while (tableExists);
}
CreateTableResponse response = Client.CreateTableAsync(request).Result;
Assert.AreEqual(HttpStatusCode.OK, response.HttpStatusCode);
tableDescription = Client.DescribeTableAsync(request.TableName).Result.Table;
Assert.AreEqual(TableStatus.CREATING, tableDescription.TableStatus);
WaitForTableStatus(request.TableName, TableStatus.ACTIVE);
}
public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
{
DeleteTableResponse response = new DeleteTableResponse();
context.Read();
response.DeleteTableResult = DeleteTableResultUnmarshaller.GetInstance().Unmarshall(context);
return(response);
}
public async Task DynamoDbService_Should_Delete_A_DynamoDb_Table()
{
var tableName = Guid.NewGuid().ToString();
await CreateTestTable(tableName);
DeleteTableResponse deleteTableResponse = await DeleteTestTable(tableName);
Assert.Equal(HttpStatusCode.OK, deleteTableResponse.HttpStatusCode);
}
public void Dispose()
{
try
{
DeleteTableResponse deleteTableResponse = amazonDynamoDbClient.DeleteTableAsync(TableName).Result;
}
catch (AggregateException)
{
// There is no such table.
}
}
public void Dispose()
{
try
{
DeleteTableResponse deleteTableResponse = tempDynamoDbClient
.DeleteTableAsync(dynamoDbMetastoreImpl.TableName)
.Result;
}
catch (AggregateException)
{
// There is no such table.
}
}
private async Task DeleteDynamoDbTableAsync(string tableName)
{
var response = new DeleteTableResponse();
try
{
var deleteResponse = _dynamoDbClient.DeleteTableAsync(tableName);
response = await deleteResponse;
}
catch (Exception ex)
{
Logger.Log($"ERROR: Failed to delete the table, because:\n {ex.Message}");
}
await WaitTillTableDeletedAsync(tableName, response);
}
public static DeleteTableResponse Unmarshall(UnmarshallerContext _ctx)
{
DeleteTableResponse deleteTableResponse = new DeleteTableResponse();
deleteTableResponse.HttpResponse = _ctx.HttpResponse;
deleteTableResponse.RequestId = _ctx.StringValue("DeleteTable.RequestId");
DeleteTableResponse.DeleteTable_TaskInfo taskInfo = new DeleteTableResponse.DeleteTable_TaskInfo();
taskInfo.TaskId = _ctx.StringValue("DeleteTable.TaskInfo.TaskId");
taskInfo.Content = _ctx.StringValue("DeleteTable.TaskInfo.Content");
taskInfo.Status = _ctx.StringValue("DeleteTable.TaskInfo.Status");
taskInfo.NextTaskId = _ctx.StringValue("DeleteTable.TaskInfo.NextTaskId");
deleteTableResponse.TaskInfo = taskInfo;
return(deleteTableResponse);
}
public void CreateTable(CreateTableRequest request, bool deleteIfTableExists)
{
TableDescription tableDescription;
var tableExists = TableExists(request.TableName);
if (tableExists && !deleteIfTableExists)
{
throw new Exception(request.TableName + " already exists");
}
if (tableExists)
{
Console.WriteLine("Table found, deleting");
DeleteTableResponse deleteResponse = Client.DeleteTableAsync(request.TableName).Result;
if (HttpStatusCode.OK != deleteResponse.HttpStatusCode)
{
throw new Exception("Table delete failed: " + deleteResponse.HttpStatusCode);
}
tableDescription = Client.DescribeTableAsync(request.TableName).Result.Table;
if (tableDescription.TableStatus != TableStatus.DELETING)
{
throw new Exception("Table isn't deleting after delete was issued. Current status: " + tableDescription.TableStatus);
}
do
{
System.Threading.Thread.Sleep(200);
tableExists = TableExists(request.TableName);
Console.WriteLine("Table found after deleting, waiting.");
} while (tableExists);
}
CreateTableResponse response = Client.CreateTableAsync(request).Result;
if (response.HttpStatusCode != HttpStatusCode.OK)
{
throw new Exception("Create table failed: " + response.HttpStatusCode);
}
tableDescription = Client.DescribeTableAsync(request.TableName).Result.Table;
if (tableDescription.TableStatus != TableStatus.CREATING)
{
throw new Exception("Table isn't creating after create was issued. Current status: " + tableDescription.TableStatus);
}
WaitForTableStatus(request.TableName, TableStatus.ACTIVE);
}
public override AmazonWebServiceResponse Unmarshall(JsonUnmarshallerContext context)
{
DeleteTableResponse response = new DeleteTableResponse();
context.Read();
int targetDepth = context.CurrentDepth;
while (context.ReadAtDepth(targetDepth))
{
if (context.TestExpression("TableDescription", targetDepth))
{
response.TableDescription = TableDescriptionUnmarshaller.GetInstance().Unmarshall(context);
continue;
}
}
return(response);
}
public async Task DeleteTable()
{
try
{
Console.WriteLine("\n*** Deleting table {0} ***", tableName);
DeleteTableRequest request = new DeleteTableRequest
{
TableName = tableName
};
DeleteTableResponse response = await client.DeleteTableAsync(request);
Console.WriteLine("Table {0} is being deleted...", tableName);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
public static async void DeleteTableDemo(string tableName)
{
try
{
using (IAmazonDynamoDB client = GetDynamoDbClient())
{
DeleteTableRequest deleteTableRequest = new DeleteTableRequest(tableName);
DeleteTableResponse deleteTableResponse = await client.DeleteTableAsync(deleteTableRequest);
TableDescription tableDescription = deleteTableResponse.TableDescription;
TableStatus tableStatus = tableDescription.TableStatus;
Debug.WriteLine(string.Format("Delete table command sent to Amazon for table {0}, status after deletion: {1}", tableName
, tableDescription.TableStatus));
}
}
catch (AmazonDynamoDBException exception)
{
Debug.WriteLine(string.Concat("Exception while deleting DynamoDb table: {0}", exception.Message));
Debug.WriteLine(String.Concat("Error code: {0}, error type: {1}", exception.ErrorCode, exception.ErrorType));
}
}
private static void UnmarshallResult(JsonUnmarshallerContext context, DeleteTableResponse response)
{
int originalDepth = context.CurrentDepth;
int targetDepth = originalDepth + 1;
while (context.Read())
{
if (context.TestExpression("TableDescription", targetDepth))
{
context.Read();
response.TableDescription = TableDescriptionUnmarshaller.GetInstance().Unmarshall(context);
continue;
}
if (context.CurrentDepth <= originalDepth)
{
return;
}
}
return;
}
public async Task DeleteTable()
{
Console.WriteLine("Deleting table");
try
{
var deleteTableRequest = new DeleteTableRequest
{
DatabaseName = Constants.DATABASE_NAME,
TableName = Constants.TABLE_NAME
};
DeleteTableResponse response = await writeClient.DeleteTableAsync(deleteTableRequest);
Console.WriteLine($"Table {Constants.TABLE_NAME} delete request status: {response.HttpStatusCode}");
}
catch (ResourceNotFoundException)
{
Console.WriteLine($"Table {Constants.TABLE_NAME} does not exists");
}
catch (Exception e)
{
Console.WriteLine("Exception while deleting table:" + e.ToString());
}
}
public async Task DeleteTable(IAmazonTimestreamWrite writeClient, string databaseName, string tableName)
{
Console.WriteLine($"Deleting table {tableName}");
try
{
var deleteTableRequest = new DeleteTableRequest
{
DatabaseName = databaseName,
TableName = tableName
};
DeleteTableResponse response = await writeClient.DeleteTableAsync(deleteTableRequest);
Console.WriteLine($"Table {tableName} delete request status: {response.HttpStatusCode}");
}
catch (ResourceNotFoundException)
{
Console.WriteLine($"Table {tableName} does not exists");
}
catch (Exception e)
{
Console.WriteLine($"Exception while deleting table: {e}");
}
}
public static async Task WaitTillTableDeleted(AmazonDynamoDBClient client, string tableName, DeleteTableResponse response)
{
var tableDescription = response.TableDescription;
string status = tableDescription.TableStatus;
Console.WriteLine("Waiting for delete - " + tableName + " : " + status);
// Let us wait until table is created. Call DescribeTable
try
{
while (status == "DELETING")
{
System.Threading.Thread.Sleep(5000); // wait 5 seconds
var res = await client.DescribeTableAsync(new DescribeTableRequest
{
TableName = tableName
});
Console.WriteLine("Table name: {0}, status: {1}", res.Table.TableName, res.Table.TableStatus);
status = res.Table.TableStatus;
}
}
catch (ResourceNotFoundException exRnf)
{
for (Exception ex = exRnf; ex != null; ex = ex.InnerException)
{
Debug.WriteLine(ex.GetType().Name + " - " + ex.Message);
}
}
}
