private void DoLog(string msg)
{
if (_writeError || _disposed)
{
_writeError = true;
return;
}
try
{
_writer.Write(msg);
if (!msg.EndsWith("\n"))
{
_writer.Write('\n');
}
}
catch (Exception e)
{
ArasExtensions.LogException("Logger", e);
_writeError = true;
}
}
/// <summary>
/// Setup logging, innovator and error handling, then run method.
/// </summary>
/// <param name="item"></param>
/// <returns></returns>
public Item Apply(Item item)
{
return(ArasExtensions.CallMethod(GetType().Name, DoApply, item));
}
/// <summary>
/// Sets properties on an object matching XML child element's tag names
/// using their InnerText as value via [XmlProperty] attributes.
///
/// Attempts to convert values to matching type via System.Convert class.
/// </summary>
/// <param name="obj"></param>
/// <param name="element"></param>
public static void BindXml(XmlElement element, object obj)
{
var type = obj.GetType();
var xmlProps = type.GetProperties()
.Where(pi => pi.GetCustomAttributes(typeof(XmlPropertyAttribute), true)
.Any())
.ToList();
var requiredProps = xmlProps
.Where(pi => pi.GetCustomAttributes(typeof(XmlPropertyAttribute), true)
.Cast <XmlPropertyAttribute>()
.First()
.Required)
.ToList();
var errors = "";
foreach (var child in element.ChildNodes.OfType <XmlElement>())
{
var prop = xmlProps
.FirstOrDefault(pi =>
{
var attr = pi.GetCustomAttributes(typeof(XmlPropertyAttribute), true)
.Cast <XmlPropertyAttribute>()
.First();
return(attr.ElementName == child.LocalName ||
attr.ElementName == null &&
string.Equals(child.LocalName, pi.Name, StringComparison.InvariantCultureIgnoreCase));
});
if (prop == null)
{
throw new XmlException($"Class {type.FullName} has no property " +
$"bound to Xml element '{child.LocalName}'.");
}
try
{
var value = Convert.ChangeType(child.InnerText, prop.PropertyType);
prop.SetValue(obj, value, null);
requiredProps.Remove(prop); // non-required are ignored
}
catch (Exception e)
{
var msg =
$"Error setting '{prop.Name}' as '{prop.PropertyType}' " +
$"from value '{child.InnerText}' in element'{child.LocalName}'" +
$": {e.Message}.\n";
errors += msg;
ArasExtensions.LogException(msg, e);
}
}
if (requiredProps.Any())
{
errors += "Failed to set all required xml elements: [" +
string.Join(", ", requiredProps.Select(pi => pi.Name)) + "]\n";
}
if (errors.Any())
{
throw new XmlException(errors);
}
}
