/// <summary>
/// Asynchronously waits till a table is created
/// TODO: add a timeout
/// </summary>
private static async Task TillTableIsCreatedAsync(IAmazonDynamoDB client, string tableName)
{
string status = string.Empty;
do
{
await Task.Delay(TimeSpan.FromSeconds(1));
try
{
#if AWSSDK_1_5
status = client.DescribeTable
(
new DescribeTableRequest {
TableName = tableName
}
)
.DescribeTableResult.Table.TableStatus;
#else
var response = await client.DescribeTableAsync
(
new DescribeTableRequest { TableName = tableName }
);
status = response.Table.TableStatus;
#endif
}
catch (ResourceNotFoundException)
{
}
}while (status != "ACTIVE");
}
/// <summary>
/// Asynchronously waits till a table is deleted
/// TODO: add a timeout
/// </summary>
private static async Task TillTableIsDeletedAsync(IAmazonDynamoDB client, string tableName)
{
while (true)
{
await Task.Delay(TimeSpan.FromSeconds(1));
try
{
await client.DescribeTableAsync(new DescribeTableRequest { TableName = tableName });
}
catch (ResourceNotFoundException)
{
break;
}
}
}
/// <summary>
/// Initializes a new instance of the Linq2DynamoDb.DataContext.DataContext class. If a table
/// prefix is specified in config, it will be picked up automatically, rather than explicitly
/// defining it in the constructor.
/// </summary>
/// <param name="client"> Returns an AmazonDynamoDb instance passed via ctor. </param>
public DataContext(IAmazonDynamoDB client)
{
this._client = client;
this._tableNamePrefix = AWSConfigsDynamoDB.Context.TableNamePrefix;
}
/// <summary>
/// This ctor takes an AmazonDynamoDBClient, that will be used to load table metadata from DynamoDb
/// </summary>
public DataContext(IAmazonDynamoDB client, string tableNamePrefix)
{
this._client = client;
this._tableNamePrefix = tableNamePrefix;
}
public bool IsAssignedToThisClientInstance(IAmazonDynamoDB client)
{
return(this._dynamoDbClientHashCode == client.GetHashCode());
}
public CachedTableDefinitions(IAmazonDynamoDB client)
{
this._dynamoDbClientHashCode = client.GetHashCode();
}
