public IGenericIOManager OpenConnection()
{
//Validate Attributes
foreach (PropertyInfo property in this._properties.Keys)
{
ConnectionAttribute attr = this._properties[property];
switch (attr.Type)
{
case ConnectionSettingType.Boolean:
bool b = (bool)property.GetValue(this, null);
break;
case ConnectionSettingType.Integer:
int i = (int)property.GetValue(this, null);
if (attr.IsValueRestricted)
{
if (i < attr.MinValue)
{
throw new Exception(attr.DisplayName + " must be an Integer above " + attr.MinValue);
}
else if (i > attr.MaxValue)
{
throw new Exception(attr.DisplayName + " must be an Integer below " + attr.MaxValue);
}
}
break;
case ConnectionSettingType.Password:
case ConnectionSettingType.String:
case ConnectionSettingType.File:
String s = (String)property.GetValue(this, null);
if (attr.IsRequired)
{
if (s == null || (s.Equals(String.Empty) && !attr.AllowEmptyString))
{
if (attr.NotRequiredIf != null)
{
PropertyInfo notReqProp = this._properties.Keys.Where(p => p.Name.Equals(attr.NotRequiredIf)).FirstOrDefault();
if (notReqProp != null)
{
bool notReq = (bool)notReqProp.GetValue(this, null);
if (!notReq)
{
throw new Exception(attr.DisplayName + " is a required connection setting!");
}
}
else
{
throw new Exception("Value for NotRequiredIf property is invalid");
}
}
else
{
throw new Exception(attr.DisplayName + " is a required connection setting!");
}
}
}
if (s != null && attr.IsValueRestricted)
{
if (s.Length < attr.MinValue)
{
throw new Exception(attr.DisplayName + " must be at least " + attr.MinValue + " characters long");
}
else if (s.Length > attr.MaxValue)
{
throw new Exception(attr.DisplayName + " must be no more than " + attr.MaxValue + " characters long");
}
}
break;
case ConnectionSettingType.Enum:
Enum e = (Enum)property.GetValue(this, null);
break;
default:
throw new Exception("Not a valid Connection Setting Type");
}
}
return(this.OpenConnectionInternal());
}
/// <summary>
/// Populates the settings from an existing serialized configuration
/// </summary>
/// <param name="g">Graph</param>
/// <param name="objNode">Object Node</param>
public virtual void PopulateFrom(IGraph g, INode objNode)
{
foreach (PropertyInfo property in this._properties.Keys)
{
ConnectionAttribute attr = this._properties[property];
if (!String.IsNullOrEmpty(attr.PopulateFrom))
{
INode n = objNode;
if (!String.IsNullOrEmpty(attr.PopulateVia))
{
n = ConfigurationLoader.GetConfigurationNode(g, n, g.CreateUriNode(UriFactory.Create(attr.PopulateVia)));
if (n == null)
{
continue;
}
}
switch (attr.Type)
{
case ConnectionSettingType.Boolean:
bool b = ConfigurationLoader.GetConfigurationBoolean(g, n, g.CreateUriNode(UriFactory.Create(attr.PopulateFrom)), (bool)property.GetValue(this, null));
property.SetValue(this, b, null);
break;
case ConnectionSettingType.File:
case ConnectionSettingType.Password:
case ConnectionSettingType.String:
String s = ConfigurationLoader.GetConfigurationString(g, n, g.CreateUriNode(UriFactory.Create(attr.PopulateFrom)));
if (!String.IsNullOrEmpty(s))
{
property.SetValue(this, s, null);
}
else
{
//May be a URI as the object
IUriNode u = ConfigurationLoader.GetConfigurationNode(g, n, g.CreateUriNode(UriFactory.Create(attr.PopulateFrom))) as IUriNode;
if (u != null)
{
property.SetValue(this, u.Uri.AbsoluteUri, null);
}
}
break;
case ConnectionSettingType.Integer:
int i = ConfigurationLoader.GetConfigurationInt32(g, n, g.CreateUriNode(UriFactory.Create(attr.PopulateFrom)), (int)property.GetValue(this, null));
property.SetValue(this, i, null);
break;
case ConnectionSettingType.Enum:
String enumStr = ConfigurationLoader.GetConfigurationString(g, n, g.CreateUriNode(UriFactory.Create(attr.PopulateFrom)));
if (!String.IsNullOrEmpty(enumStr))
{
try
{
Object val = Enum.Parse(property.GetValue(this, null).GetType(), enumStr, false);
property.SetValue(this, val, null);
}
catch
{
//Ignore errors
}
}
break;
}
}
}
}
