/// <summary>
/// Creates query context instance.
/// </summary>
internal QueryContext(string connectionContextName)
{
// Get entity works context.
var entityWorksContext = EntityWorksContext.GetEntityWorksContext();
// Get connection context.
this.ConnectionContext = EntityWorksContext.ConnectionContexts[connectionContextName];
// Set db provider factory.
this.DbProviderFactory = this.ConnectionContext.GetSpecificDbProvider();
// Set db string builder.
this.DbConnectionStringBuilder = DbProviderFactory.CreateConnectionStringBuilder();
// Parse connection string to builder.
this.DbConnectionStringBuilder.ConnectionString = ConnectionContext.ConnectionString;
// Set connection segments.
Name = connectionContextName;
Database = DbConnectionStringBuilder["Initial Catalog"] as string;
Username = DbConnectionStringBuilder["User ID"] as string;
Password = DbConnectionStringBuilder["Password"] as string;
Hostname = DbConnectionStringBuilder["Data Source"] as string;
// Set connection string.
ConnectionString = DbConnectionStringBuilder.ConnectionString;
// Set default language code.
LanguageCode = entityWorksContext.LanguageCode;
}
/// <summary>
/// Validates if all parameters are set.
/// </summary>
public static void ValidateInstance(EntityWorksContext instance)
{
// Validate if debug mode on.
if (instance.DebugMode)
{
// Validate language code.
if (string.IsNullOrWhiteSpace(instance.LanguageCode))
{
throw new EntityWorksException("Language code can not be null. Make sure to provide default localization culture code.");
}
// Validate if default query context is set.
else if (instance.DefaultQueryContext == null)
{
throw new EntityWorksException("Default query context not initialized. Make sure to provide valid connection string and register default query context.");
}
// Validate if user query context is set.
else if (instance.UserQueryContext == null)
{
throw new EntityWorksException("User query context not initialized. Make sure to provide valid connection string and register user query context.");
}
// Validate if root query context is set.
else if (instance.UserQueryContext == null)
{
throw new EntityWorksException("Root query context not initialized. Make sure to provide valid connection string and register root query context.");
}
}
}
/// <summary>
/// Sets context as ambient context.
/// </summary>
private void SetAmbiance()
{
// Get entity works context.
var entityWorksContext = EntityWorksContext.GetEntityWorksContext();
// Enlist.
entityWorksContext.EnlistAmbientContext(this);
}
public static EntityWorksContext GetEntityWorksContext()
{
// Instance reference.
EntityWorksContext instance = null;
// Get instance.
if (m_contextFactory != null)
{
instance = m_contextFactory();
}
else
{
instance = m_entityWorksContext;
}
// Return instance.
return(instance);
}
/// <summary>
/// Gets ambient query context.
/// </summary>
internal static QueryContext GetAmbientQueryContext()
{
// Get entity works context.
var entityWorksContext = EntityWorksContext.GetEntityWorksContext();
// Validate instance if debug mode.
EntityWorksContext.ValidateInstance(entityWorksContext);
// Get ambient query context.
var queryContext = entityWorksContext.PeekAmbientContext();
// Set language code.
if (queryContext.LanguageCode == null)
{
queryContext.LanguageCode = entityWorksContext.LanguageCode;
}
// Return query context.
return(queryContext);
}
/// <summary>
/// Protected implementation of Dispose pattern.
/// </summary>
protected virtual void Dispose(bool disposing)
{
// If disposed return.
if (m_isDisposed)
{
return;
}
// If disposing release managed objects.
if (disposing)
{
// Get entity works context.
var entityWorksContext = EntityWorksContext.GetEntityWorksContext();
// Delist ambient context.
entityWorksContext.DelistAmbientContext(this);
}
// Set disposed indicator true.
m_isDisposed = true;
}
/// <summary>
/// Default static constructor.
/// </summary>
static EntityWorksContextProvider()
{
// Set defaults.
m_entityWorksContext = new EntityWorksContext();
m_contextFactory = null;
}
