public void AddNewItem(string tableName, TableItem tableItem)
{
GenericTableEntity genericTableEntity = GenericTableEntity.HydrateFrom(tableItem);
var operation = TableOperation.Insert(genericTableEntity);
_operations.Enqueue(new ExecutableTableOperation(tableName, operation, TableOperationType.Insert, tableItem.PartitionKey, tableItem.RowKey));
}
public void Upsert(string tableName, TableItem tableItem)
{
// Upsert does not use an ETag (If-Match header) - http://msdn.microsoft.com/en-us/library/windowsazure/hh452242.aspx
GenericTableEntity genericTableEntity = GenericTableEntity.HydrateFrom(tableItem);
var operation = TableOperation.InsertOrReplace(genericTableEntity);
_operations.Enqueue(new ExecutableTableOperation(tableName, operation, TableOperationType.InsertOrReplace, tableItem.PartitionKey, tableItem.RowKey));
}
public void DeleteItem(string tableName, TableItem tableItem, ConflictHandling conflictHandling)
{
var genericTableEntity = GenericTableEntity.HydrateFrom(tableItem);
if (ShouldForceOverwrite(conflictHandling, genericTableEntity))
{
genericTableEntity.ETag = "*";
}
var operation = TableOperation.Delete(genericTableEntity);
_operations.Enqueue(new ExecutableTableOperation(tableName, operation, TableOperationType.Delete, tableItem.PartitionKey, tableItem.RowKey));
}
public void CreateInstanceFromProperties_TargetTypeDecoratedWithETagAttribute_ETagSetCorrectly()
{
var genericEntity = new GenericTableEntity
{
ETag = "tag"
};
var entityProperties = new Dictionary<string, EntityProperty>();
entityProperties["Age"] = new EntityProperty( 42 );
genericEntity.ReadEntity( entityProperties, null );
var item = genericEntity.ConvertTo<DecoratedItemWithETag>();
Assert.AreEqual( "tag", item.ETag, "Incorrect ETag" );
}
public void CreateInstanceFromProperties_TargetTypeDecoratedWithRowAndPartitionKeyAttributes_RowAndPartitionKeySetCorrectly()
{
var genericEntity = new GenericTableEntity
{
PartitionKey = "foo", RowKey = "bar"
};
var entityProperties = new Dictionary<string, EntityProperty>();
entityProperties["Age"] = new EntityProperty( 42 );
genericEntity.ReadEntity( entityProperties, null );
var item = genericEntity.ConvertTo<DecoratedItem>();
Assert.AreEqual( "foo", item.Id, "Incorrect partition key" );
Assert.AreEqual( "bar", item.Name, "Incorrect row key" );
}
public void CreateInstanceFromProperties_TargetTypeDecoratedWithTimestampAttribute_TimestampSetCorrectly()
{
var dt = DateTime.Now;
var genericEntity = new GenericTableEntity
{
Timestamp = dt
};
var entityProperties = new Dictionary<string, EntityProperty>();
entityProperties["Age"] = new EntityProperty( 42 );
genericEntity.ReadEntity( entityProperties, null );
var item = genericEntity.ConvertTo<DecoratedItemWithTimestamp>();
Assert.AreEqual( dt, item.Timestamp, "Incorrect Timestamp" );
}
public void Add( GenericTableEntity entity )
{
AzureKeyValidator.ValidatePartitionKey( entity.PartitionKey );
AzureKeyValidator.ValidateRowKey( entity.RowKey );
lock ( _entities )
{
if ( _entities.ContainsKey( entity.RowKey ) )
{
throw new EntityAlreadyExistsException();
}
entity.ETag = GetNewETag();
entity.Timestamp = DateTimeOffset.UtcNow;
_entities[entity.RowKey] = entity;
}
}
public static GenericTableEntity HydrateFrom(TableItem tableItem)
{
Dictionary <string, EntityProperty> properties = GetProperties(tableItem.Properties);
var genericEntity = new GenericTableEntity();
foreach (KeyValuePair <string, EntityProperty> keyValuePair in properties)
{
genericEntity._properties.Add(keyValuePair.Key, keyValuePair.Value);
}
genericEntity.PartitionKey = tableItem.PartitionKey;
genericEntity.RowKey = tableItem.RowKey;
genericEntity.ETag = tableItem.ETag == null ? null : tableItem.ETag.ToString();
return(genericEntity);
}
internal override T ConvertResult(GenericTableEntity e)
{
return(e.ConvertTo <T>());
}
internal override object ConvertResult(GenericTableEntity e)
{
return(e.ConvertToDynamic(IncludeETagForDynamic));
}
internal abstract T ConvertResult(GenericTableEntity e);
public void Merge( GenericTableEntity entity )
{
lock ( _entities )
{
if ( !_entities.ContainsKey( entity.RowKey ) )
{
throw new EntityDoesNotExistException();
}
if ( EntityHasBeenChanged( entity ) )
{
throw new EntityHasBeenChangedException();
}
var currentEntity = _entities[entity.RowKey];
foreach ( var property in entity.WriteEntity( null ) )
{
currentEntity.SetProperty( property.Key, property.Value );
}
currentEntity.ETag = GetNewETag();
currentEntity.Timestamp = DateTimeOffset.UtcNow;
}
}
private bool EntityHasBeenChanged( GenericTableEntity entity )
{
var hasETagProperty = !string.IsNullOrEmpty( entity.ETag );
if ( hasETagProperty && entity.ETag.Equals( "*" ) )
{
return false;
}
var entityHasChanged = false;
if ( hasETagProperty )
{
entityHasChanged = !entity.ETag.Equals( _entities[entity.RowKey].ETag );
}
return entityHasChanged;
}
public void Upsert( GenericTableEntity entity )
{
lock ( _entities )
{
entity.ETag = GetNewETag();
entity.Timestamp = DateTimeOffset.UtcNow;
_entities[entity.RowKey] = entity;
}
}
public void Update( GenericTableEntity entity )
{
lock ( _entities )
{
if ( !_entities.ContainsKey( entity.RowKey ) )
{
throw new EntityDoesNotExistException();
}
if ( EntityHasBeenChanged( entity ) )
{
throw new EntityHasBeenChangedException();
}
entity.ETag = GetNewETag();
entity.Timestamp = DateTimeOffset.UtcNow;
_entities[entity.RowKey] = entity;
}
}
private static bool ShouldForceOverwrite(ConflictHandling conflictHandling, GenericTableEntity genericTableEntity)
{
return(string.IsNullOrEmpty(genericTableEntity.ETag) || conflictHandling.Equals(ConflictHandling.Overwrite));
}
public void Delete( GenericTableEntity entity )
{
lock ( _entities )
{
if ( _entities.ContainsKey( entity.RowKey ) )
{
if ( EntityHasBeenChanged( entity ) )
{
throw new EntityHasBeenChangedException();
}
_entities.Remove( entity.RowKey );
}
}
}
