public DescribeTableResult WithTable(TableDescription table)
{
this.table = table;
return this;
}
/// <summary>
/// Sets the TableDescription property
/// </summary>
/// <param name="tableDescription">The value to set for the TableDescription property </param>
/// <returns>this instance</returns>
public DeleteTableResult WithTableDescription(TableDescription tableDescription)
{
this.tableDescription = tableDescription;
return(this);
}
/// <summary>
/// Sets the TableDescription property
/// </summary>
/// <param name="tableDescription">The value to set for the TableDescription property </param>
/// <returns>this instance</returns>
public CreateTableResult WithTableDescription(TableDescription tableDescription)
{
this.tableDescription = tableDescription;
return this;
}
public DescribeTableResult WithTable(TableDescription table)
{
this.table = table;
return(this);
}
public virtual bool ValidateSchema(TableDescription tableDescription)
{
if (tableDescription == null)
{
_Default.LogMessageToPage("Null table description passed to validation method.");
return false;
}
if (!tableDescription.TableStatus.Equals("ACTIVE"))
{
_Default.LogMessageToPage("Table is not active.");
return false;
}
if (tableDescription.AttributeDefinitions == null || tableDescription.KeySchema == null)
{
_Default.LogMessageToPage("Schema doesn't match.");
return false;
}
foreach (AttributeDefinition attributeDefinition in tableDescription.AttributeDefinitions)
{
// Confirm that the relevant attributes are both strings.
switch (attributeDefinition.AttributeName)
{
case "Key":
case "Bucket":
if (!attributeDefinition.AttributeType.Equals("S"))
{
// We have a matching attribute, but the type is wrong.
_Default.LogMessageToPage("{0} attribute is wrong type in attribute definition.", attributeDefinition.AttributeName);
return false;
}
break;
}
}
// If we've gotten here, the attributes are good. Now check the key schema.
if (tableDescription.KeySchema.Count != 2)
{
_Default.LogMessageToPage("Wrong number of elements in the key schema.");
return false;
}
foreach (KeySchemaElement keySchemaElement in tableDescription.KeySchema)
{
switch (keySchemaElement.AttributeName)
{
case "Key":
if (!keySchemaElement.KeyType.Equals("HASH"))
{
// We have a matching attribute, but the type is wrong.
_Default.LogMessageToPage("Key attribute is wrong type in key schema.");
return false;
}
break;
case "Bucket":
if (!keySchemaElement.KeyType.Equals("RANGE"))
{
// We have a matching attribute, but the type is wrong.
_Default.LogMessageToPage("Bucket attribute is wrong type in key schema.");
return false;
}
break;
default:
_Default.LogMessageToPage(String.Format("Unexpected attribute ({0}) in the key schema.", keySchemaElement.AttributeName));
return false;
}
}
_Default.LogMessageToPage("Table schema is as expected.");
// We've passed our checks.
return true;
}
internal DynamoDbGlobalSecondaryIndexThroughput(
TableDescription tableDescription,
GlobalSecondaryIndexDescription indexDescription)
: this(tableDescription.TableName, indexDescription)
{
}
internal DynamoDbTableThroughput(TableDescription tableDescription)
: this(tableDescription.TableName, tableDescription.ProvisionedThroughput)
{
}
/// <summary>
/// Validate the schema described by the tableDescription parameter. We expect the table to have
/// the following characteristics:
/// Schema - At least two attributes, "Key" and "Bucket" both of string types.
/// Hash Key - Single attribute named "Key" of type string.
/// Range Key - Single attribute named "Bucket" of type string.
/// </summary>
/// <param name="tableDescription">The table definition.</param>
/// <remarks>
/// The purpose of this task is to gain experience working with complex data structures that are
/// a regular part of interacting with DynamoDB.
/// </remarks>
/// <returns>True if the schema matches what we expect, false if the schema was invalid or an exception was thrown.</returns>
public override bool ValidateSchema(TableDescription tableDescription)
{
//TODO: Replace this call to the base class with your own method implementation.
return base.ValidateSchema(tableDescription);
}
