public static ModificationResults ApplyModifications(PreparedModifications prepared_modifications, bool continue_on_error = true)
{
ModificationResults modification_results = new ModificationResults();
if (prepared_modifications.modified_throughputs.Any())
{
var table_name_groups = prepared_modifications.modified_throughputs
.Where(modified_throughput => modified_throughput.new_provisioned_throughput != null)
.GroupBy(modified_throughput => modified_throughput.table_name)
.ToList();
foreach (var table_name_group in table_name_groups)
{
try
{
UpdateTableRequest update_table_request = new UpdateTableRequest {
TableName = table_name_group.Key
};
update_table_request.ProvisionedThroughput = null;
update_table_request.GlobalSecondaryIndexUpdates = new List <GlobalSecondaryIndexUpdate>();
ModifiedThroughput table_modified_throughput = table_name_group.SingleOrDefault(modified_throughput => string.IsNullOrEmpty(modified_throughput.index_name));
if (table_modified_throughput != null)
{
update_table_request.ProvisionedThroughput = table_modified_throughput.new_provisioned_throughput;
}
List <ModifiedThroughput> index_modified_throughputs = table_name_group.Where(modified_throughput => !string.IsNullOrEmpty(modified_throughput.index_name)).ToList();
foreach (var index_modified_throughput in index_modified_throughputs)
{
GlobalSecondaryIndexUpdate global_secondary_index_update = new GlobalSecondaryIndexUpdate
{
Update = new UpdateGlobalSecondaryIndexAction
{
IndexName = index_modified_throughput.index_name,
ProvisionedThroughput = index_modified_throughput.new_provisioned_throughput
}
};
update_table_request.GlobalSecondaryIndexUpdates.Add(global_secondary_index_update);
}
AmazonDynamoDBClient amazon_dynamo_db_client = AWS.GetAmazonDynamoDBClient();
amazon_dynamo_db_client.UpdateTable(update_table_request);
modification_results.SuccessfulUpdates.Add(table_name_group.Key);
}
catch (Exception exception)
{
modification_results.Errors.Add(new Tuple <string, Exception>(table_name_group.Key, exception));
if (!continue_on_error)
{
break;
}
}
}
}
return(modification_results);
}
public static async Task <UpdateTableResponse> AddIndexAsync(IAmazonDynamoDB client, string table, string indexname, string partitionkey, string partitionkeytype, string sortkey, string sortkeytype)
{
if (null == client)
{
throw new ArgumentNullException("client parameter is null");
}
if (string.IsNullOrEmpty(table))
{
throw new ArgumentNullException("table parameter is null");
}
if (string.IsNullOrEmpty(indexname))
{
throw new ArgumentNullException("indexname parameter is null");
}
if (string.IsNullOrEmpty(partitionkey))
{
throw new ArgumentNullException("partitionkey parameter is null");
}
if (string.IsNullOrEmpty(sortkey))
{
throw new ArgumentNullException("sortkey parameter is null");
}
ProvisionedThroughput pt = new ProvisionedThroughput
{
ReadCapacityUnits = 10L,
WriteCapacityUnits = 5L
};
KeySchemaElement kse1 = new KeySchemaElement
{
AttributeName = partitionkey,
KeyType = "HASH"
};
KeySchemaElement kse2 = new KeySchemaElement
{
AttributeName = sortkey,
KeyType = "RANGE"
};
List <KeySchemaElement> kses = new List <KeySchemaElement>
{
kse1,
kse2
};
Projection p = new Projection
{
ProjectionType = "ALL"
};
var newIndex = new CreateGlobalSecondaryIndexAction()
{
IndexName = indexname,
ProvisionedThroughput = pt,
KeySchema = kses,
Projection = p
};
GlobalSecondaryIndexUpdate update = new GlobalSecondaryIndexUpdate
{
Create = newIndex
};
List <GlobalSecondaryIndexUpdate> updates = new List <GlobalSecondaryIndexUpdate>
{
update
};
AttributeDefinition ad1;
if (partitionkeytype == "string")
{
ad1 = new AttributeDefinition
{
AttributeName = partitionkey,
AttributeType = "S"
};
}
else
{
ad1 = new AttributeDefinition
{
AttributeName = partitionkey,
AttributeType = "N"
};
}
AttributeDefinition ad2;
if (sortkeytype == "string")
{
ad2 = new AttributeDefinition
{
AttributeName = sortkey,
AttributeType = "S"
};
}
else
{
ad2 = new AttributeDefinition
{
AttributeName = sortkey,
AttributeType = "N"
};
}
UpdateTableRequest request = new UpdateTableRequest
{
TableName = table,
AttributeDefinitions =
{
ad1,
ad2
},
GlobalSecondaryIndexUpdates = updates
};
var response = await client.UpdateTableAsync(request);
return(response);
}
