public TenantAppConfigurationSection(IAppConfigurationRoot root, string key, string tenant)
{
if (string.IsNullOrEmpty(tenant))
{
throw new ArgumentException("Cannot be null or empty.", nameof(tenant));
}
this.root = root;
this.tenant = tenant;
string tenantKey, globalKey;
if (tenant == key)
{
tenantKey = tenant;
globalKey = null;
}
else if (key.StartsWith($"{tenant}{AppConfigurationPath.KeyDelimiter}", StringComparison.OrdinalIgnoreCase))
{
tenantKey = key;
globalKey = key.Substring(tenant.Length + 1);
}
else
{
tenantKey = AppConfigurationPath.Combine(tenant, key);
globalKey = key;
}
tenantSection = root.GetSection(tenantKey);
globalSection = globalKey == null ? null : root.GetSection(globalKey);
Path = tenantKey;
Value = tenantSection.Exists() ? tenantSection.Value : globalSection?.Value;
}
public static IAppConfigurationSection GetSection(this IAppConfigurationRoot appConfig, string key, string tenant)
{
if (string.IsNullOrEmpty(tenant))
{
// Return the "global" section
return(appConfig.GetSection(key));
}
return(new TenantAppConfigurationSection(appConfig, key, tenant));
}
public IEnumerable <IAppConfigurationSection> GetChildren()
{
// We will loop through all of the global children and see if there is a tenant equivalent
var children = new List <IAppConfigurationSection>();
var globalChildren = globalSection == null
? root.GetChildren()
: globalSection.GetChildren();
foreach (IAppConfigurationSection globalChild in globalChildren)
{
if (globalChild.Path.Equals(tenant, StringComparison.OrdinalIgnoreCase))
{
continue;
}
string tenantKey = AppConfigurationPath.Combine(tenant, globalChild.Path).ToLower();
// Tenant settings take precedence over global settings
if (root.AllKeys.Contains(tenantKey))
{
var tenantChild = root.GetSection(tenantKey);
children.Add(tenantChild);
}
else
{
var tenantChild = new TenantAppConfigurationSection(
root,
AppConfigurationPath.Combine(tenant, globalChild.Path),
tenant
);
children.Add(tenantChild);
}
}
return(children.AsReadOnly());
}