|
public DeleteTable ( |
||
| request | Container for the necessary parameters to execute the DeleteTable service method. | |
| return | ||
/// <summary>
/// Deletes all sample tables
/// </summary>
/// <param name="client"></param>
public static void DeleteSampleTables(AmazonDynamoDBClient client)
{
foreach (var table in SAMPLE_TABLE_NAMES)
{
Console.WriteLine("Deleting table " + table);
client.DeleteTable(new DeleteTableRequest { TableName = table });
}
int remainingTables;
do
{
Console.WriteLine("While sample tables still exist, sleeping for 5 seconds...");
Thread.Sleep(TimeSpan.FromSeconds(5));
Console.WriteLine("Getting list of tables");
var currentTables = client.ListTables().TableNames;
remainingTables = currentTables.Intersect(SAMPLE_TABLE_NAMES).Count();
} while (remainingTables > 0);
Console.WriteLine("Sample tables deleted");
}
public virtual void DeleteTable(AmazonDynamoDBClient ddbClient, string tableName)
{
switch (GetTableStatus(ddbClient, tableName))
{
case "ACTIVE":
_Default.LogMessageToPage("Deleting pre-existing table.");
var deleteTableRequest = new DeleteTableRequest { TableName = tableName };
ddbClient.DeleteTable(deleteTableRequest);
WaitForStatus(ddbClient, tableName, "NOTFOUND");
_Default.LogMessageToPage("Table deletion confirmed.");
break;
case "NOTFOUND":
_Default.LogMessageToPage("Skipped deletion operation. Table not found.");
break;
default:
_Default.LogMessageToPage("Skipped deletion operation. Table not in correct state.");
break;
}
}
public void DataPlaneSamples()
{
{
#region CreateTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Define table schema:
// Table has a hash-key "Author" and a range-key "Title"
List<KeySchemaElement> schema = new List<KeySchemaElement>
{
new KeySchemaElement
{
AttributeName = "Author", KeyType = "HASH"
},
new KeySchemaElement
{
AttributeName = "Title", KeyType = "RANGE"
}
};
// Define key attributes:
// The key attributes "Author" and "Title" are string types
List<AttributeDefinition> definitions = new List<AttributeDefinition>
{
new AttributeDefinition
{
AttributeName = "Author", AttributeType = "S"
},
new AttributeDefinition
{
AttributeName = "Title", AttributeType = "S"
}
};
// Define table throughput:
// Table has capacity of 20 reads and 50 writes
ProvisionedThroughput throughput = new ProvisionedThroughput
{
ReadCapacityUnits = 20,
WriteCapacityUnits = 50
};
// Configure the CreateTable request
CreateTableRequest request = new CreateTableRequest
{
TableName = "SampleTable",
KeySchema = schema,
ProvisionedThroughput = throughput,
AttributeDefinitions = definitions
};
// View new table properties
TableDescription tableDescription = client.CreateTable(request).TableDescription;
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Creation time: {0}", tableDescription.CreationDateTime);
Console.WriteLine("Item count: {0}", tableDescription.ItemCount);
Console.WriteLine("Table size (bytes): {0}", tableDescription.TableSizeBytes);
Console.WriteLine("Table status: {0}", tableDescription.TableStatus);
// List table key schema
List<KeySchemaElement> tableSchema = tableDescription.KeySchema;
for (int i = 0; i < tableSchema.Count; i++)
{
KeySchemaElement element = tableSchema[i];
Console.WriteLine("Key: Name = {0}, KeyType = {1}",
element.AttributeName, element.KeyType);
}
// List attribute definitions
List<AttributeDefinition> attributeDefinitions = tableDescription.AttributeDefinitions;
for (int i = 0; i < attributeDefinitions.Count; i++)
{
AttributeDefinition definition = attributeDefinitions[i];
Console.WriteLine("Attribute: Name = {0}, Type = {1}",
definition.AttributeName, definition.AttributeType);
}
Console.WriteLine("Throughput: Reads = {0}, Writes = {1}",
tableDescription.ProvisionedThroughput.ReadCapacityUnits,
tableDescription.ProvisionedThroughput.WriteCapacityUnits);
#endregion
}
{
#region DescribeTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Create DescribeTable request
DescribeTableRequest request = new DescribeTableRequest
{
TableName = "SampleTable"
};
// Issue DescribeTable request and retrieve the table description
TableDescription tableDescription = client.DescribeTable(request).Table;
// View new table properties
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Creation time: {0}", tableDescription.CreationDateTime);
Console.WriteLine("Item count: {0}", tableDescription.ItemCount);
Console.WriteLine("Table size (bytes): {0}", tableDescription.TableSizeBytes);
Console.WriteLine("Table status: {0}", tableDescription.TableStatus);
// List table key schema
List<KeySchemaElement> tableSchema = tableDescription.KeySchema;
for (int i = 0; i < tableSchema.Count; i++)
{
KeySchemaElement element = tableSchema[i];
Console.WriteLine("Key: Name = {0}, KeyType = {1}",
element.AttributeName, element.KeyType);
}
// List attribute definitions
List<AttributeDefinition> attributeDefinitions = tableDescription.AttributeDefinitions;
for (int i = 0; i < attributeDefinitions.Count; i++)
{
AttributeDefinition definition = attributeDefinitions[i];
Console.WriteLine("Attribute: Name = {0}, Type = {1}",
definition.AttributeName, definition.AttributeType);
}
Console.WriteLine("Throughput: Reads = {0}, Writes = {1}",
tableDescription.ProvisionedThroughput.ReadCapacityUnits,
tableDescription.ProvisionedThroughput.WriteCapacityUnits);
#endregion
}
{
#region ListTables Paging Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
string startTableName = null;
do
{
// Configure ListTables request with the marker value
ListTablesRequest request = new ListTablesRequest
{
ExclusiveStartTableName = startTableName,
};
// Issue call
ListTablesResult result = client.ListTables(request);
// List retrieved tables
List<string> tables = result.TableNames;
Console.WriteLine("Retrieved tables: {0}",
string.Join(", ", tables));
// Update marker value from the result
startTableName = result.LastEvaluatedTableName;
} while (!string.IsNullOrEmpty(startTableName)); // Test marker value
#endregion
}
{
#region ListTables NonPaging Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Issue call
ListTablesResult result = client.ListTables();
// List retrieved tables
List<string> tables = result.TableNames;
Console.WriteLine("Retrieved tables: {0}",
string.Join(", ", tables));
#endregion
}
TableUtils.WaitUntilTableActive("SampleTable", TestClient);
{
#region UpdateTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Define new table throughput:
// Table will now have capacity of 40 reads and 50 writes
ProvisionedThroughput throughput = new ProvisionedThroughput
{
ReadCapacityUnits = 40,
WriteCapacityUnits = 50
};
// Compose the UpdateTable request
UpdateTableRequest request = new UpdateTableRequest
{
TableName = "SampleTable",
ProvisionedThroughput = throughput
};
// View new table properties
TableDescription tableDescription = client.UpdateTable(request).TableDescription;
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Throughput: Reads = {0}, Writes = {1}",
tableDescription.ProvisionedThroughput.ReadCapacityUnits,
tableDescription.ProvisionedThroughput.WriteCapacityUnits);
#endregion
}
TableUtils.WaitUntilTableActive("SampleTable", TestClient);
{
#region DeleteTable Sample
// Create a client
AmazonDynamoDBClient client = new AmazonDynamoDBClient();
// Configure the DeleteTable request
DeleteTableRequest request = new DeleteTableRequest
{
TableName = "SampleTable"
};
// Issue DeleteTable request and retrieve the table description
TableDescription tableDescription = client.DeleteTable(request).TableDescription;
Console.WriteLine("Table name: {0}", tableDescription.TableName);
Console.WriteLine("Table status: {0}", tableDescription.TableStatus);
#endregion
}
}
public void Can_put_item_with_null_value()
{
var db = new AmazonDynamoDBClient("keyId", "key", new AmazonDynamoDBConfig
{
ServiceURL = "http://localhost:8000",
});
try
{
db.DeleteTable(new DeleteTableRequest
{
TableName = "Test",
});
Thread.Sleep(1000);
}
catch (Exception) { /*ignore*/ }
db.CreateTable(new CreateTableRequest
{
TableName = "Test",
KeySchema = new List<KeySchemaElement>
{
new KeySchemaElement
{
AttributeName = "Id",
KeyType = "HASH"
}
},
AttributeDefinitions = new List<AttributeDefinition>
{
new AttributeDefinition
{
AttributeName = "Id",
AttributeType = "N",
}
},
ProvisionedThroughput = new ProvisionedThroughput
{
ReadCapacityUnits = 10,
WriteCapacityUnits = 5,
}
});
Thread.Sleep(1000);
db.PutItem(new PutItemRequest
{
TableName = "Test",
Item = new Dictionary<string, AttributeValue>
{
{ "Id", new AttributeValue { N = "1" } },
{ "Name", new AttributeValue { S = "Foo"} },
{ "Empty", new AttributeValue { NULL = true } },
}
});
var response = db.GetItem(new GetItemRequest
{
TableName = "Test",
ConsistentRead = true,
Key = new Dictionary<string, AttributeValue> {
{ "Id", new AttributeValue { N = "1" } }
}
});
Assert.That(response.IsItemSet);
Assert.That(response.Item["Id"].N, Is.EqualTo("1"));
Assert.That(response.Item["Name"].S, Is.EqualTo("Foo"));
Assert.That(response.Item["Empty"].NULL);
}
