private static void InitializeTableSchemaFromEntity(
CloudTableClient tableStorage, string entityName,
TableServiceEntity entity)
{
TableServiceContext context =
tableStorage.GetDataServiceContext();
DateTime now = DateTime.UtcNow;
entity.PartitionKey = Guid.NewGuid().ToString();
entity.RowKey = Guid.NewGuid().ToString();
Array.ForEach(
entity.GetType().GetProperties(BindingFlags.Public |
BindingFlags.Instance),
p =>
{
if ((p.Name != "PartitionKey") &&
(p.Name != "RowKey") && (p.Name != "Timestamp"))
{
if (p.PropertyType == typeof(string))
{
p.SetValue(entity, Guid.NewGuid().ToString(),
null);
}
else if (p.PropertyType == typeof(DateTime))
{
p.SetValue(entity, now, null);
}
}
});
context.AddObject(entityName, entity);
context.SaveChangesWithRetries();
context.DeleteObject(entity);
context.SaveChangesWithRetries();
}
/// <summary>
/// Creates tables from a DataServiceContext derived class.
/// </summary>
/// <param name="serviceContextType">A DataServiceContext derived class that defines the table schemas.</param>
/// <param name="baseAddress">The baseAddress of the table storage endpoint.</param>
/// <param name="credentials">Storage account credentials.</param>
/// <remarks>
/// For each table, the class exposes one or more IQueryable<T> properties, where T is a
/// TableServiceEntity derived class with the required schema.
/// </remarks>
public static void CreateTablesFromModel(Type serviceContextType, string baseAddress, StorageCredentials credentials)
{
CloudTableClient.CreateTablesFromModel(serviceContextType, baseAddress, credentials);
CloudTableClient tableStorage = new CloudTableClient(baseAddress, credentials);
// Execute conditionally for development storage only
if (tableStorage.BaseUri.IsLoopback)
{
TableServiceContext ctx = tableStorage.GetDataServiceContext();
var properties = serviceContextType.GetProperties(BindingFlags.Instance | BindingFlags.Public);
foreach (var table in properties.Where(p => p.PropertyType.IsGenericType && p.PropertyType.GetGenericTypeDefinition() == typeof(IQueryable <>)))
{
TableServiceEntity entity = Activator.CreateInstance(table.PropertyType.GetGenericArguments()[0]) as TableServiceEntity;
if (entity != null)
{
InitializeTableSchemaFromEntity(tableStorage, table.Name, entity);
}
}
}
}
public void Save(TableServiceEntity entity)
{
new AzureTable <TableServiceEntity>(this.account, this.tableName).Add(entity);
}
public void Delete(TableServiceEntity entity)
{
new AzureTable <TableServiceEntity>(this.account, this.tableName).Delete(entity);
}
public BaseModel(TableServiceEntity entity)
{
this.Entity = entity;
}
public void UpdateEntity(TableServiceEntity entity)
{
this.Server.RawContext.UpdateObject(entity);
}
public void AddEntity(TableServiceEntity entity)
{
this.Server.RawContext.AddObject(this.Name, entity);
}
