protected void LoadMethods()
{
m_methodDictionary = new Dictionary <string, MethodData>();
// load device methods
var deviceMethods = from m in HostedDevice.GetType().GetRuntimeMethods()
let ma = m.GetCustomAttributes(typeof(MTConnectMethodAttribute), true).FirstOrDefault()
where ma != null
select m;
Debug.WriteLine(string.Format("Device '{0}' Methods", HostedDevice.Name));
foreach (var method in deviceMethods)
{
Debug.WriteLine(" - " + method.Name);
m_methodDictionary.Add(method.Name,
new MethodData
{
MethodInfo = method,
Instance = HostedDevice
}
);
}
if (HostedDevice.Components != null)
{
foreach (var component in HostedDevice.Components)
{
Debug.WriteLine(string.Format(" Component '{0}'", component.Name));
var componentMethods = from m in component.GetType().GetRuntimeMethods()
let ma = m.GetCustomAttributes(typeof(MTConnectMethodAttribute), true).FirstOrDefault()
where ma != null
select m;
foreach (var method in componentMethods)
{
Debug.WriteLine(" - " + method.Name);
m_methodDictionary.Add(method.Name,
new MethodData
{
MethodInfo = method,
Instance = component
}
);
}
}
}
}
protected void LoadProperties()
{
lock (m_syncRoot)
{
m_propertyDictionary = new Dictionary <string, PropertyData>(StringComparer.OrdinalIgnoreCase);
m_propertyKeyMap = new Dictionary <string, string>(StringComparer.OrdinalIgnoreCase);
// load device properties
var deviceProperties = from p in HostedDevice.GetType().GetRuntimeProperties()
let pr = p.GetCustomAttributes(typeof(DataItemAttribute), true).FirstOrDefault()
where pr != null
select new DataItemProperty
{
PropertyInfo = p,
PropertyAttribute = pr as DataItemAttribute
};
Debug.WriteLine(string.Format("Device '{0}' Properties", HostedDevice.Name));
List <DataItemProperty> props = deviceProperties.ToList();
foreach (var prop in deviceProperties)
{
Debug.WriteLine(" - " + prop.PropertyInfo.Name);
// create a DataItem to export
var id = prop.PropertyAttribute.ID;
if (id.IsNullOrEmpty())
{
id = CreateDataItemID(HostedDevice.Name, null, prop.PropertyInfo.Name);
}
var dataItem = CreateDataItem(prop, id);
// see if it's publicly writable
if (prop.PropertyInfo.SetMethod == null)
{
dataItem.Writable = false;
}
Device.AddDataItem(dataItem);
// cache the propertyinfo for later use
var pd = new PropertyData
{
PropertyInfo = prop.PropertyInfo,
Instance = HostedDevice,
};
m_propertyDictionary.Add(id, pd);
var key = string.Format("{0}_{1}", HostedDevice.Name, prop.PropertyInfo.Name);
m_propertyKeyMap.Add(key, id);
// wire the DataItem set to the HostedProperty setter
if (pd.PropertyInfo.CanWrite)
{
dataItem.ValueSet += delegate(object sender, DataItemValue e)
{
// look to see if we're getting called from a propertychanged handler - if so we want to prevent reentrancy
lock (m_ignorePropertyChangeIDs)
{
if (m_ignorePropertyChangeIDs.Contains(id))
{
return;
}
}
var n = HostedDevice as INotifyPropertyChanged;
// remove the change handler so our change doesn't reflect back to this point
if (n != null)
{
n.PropertyChanged -= PropertyChangedHandler;
}
SetMTConnectPropertyFromDataItemValueChange(pd, e.Value);
// rewire the change handler
if (n != null)
{
n.PropertyChanged += PropertyChangedHandler;
}
};
}
}
var notifier = HostedDevice as INotifyPropertyChanged;
if (notifier != null)
{
notifier.PropertyChanged += PropertyChangedHandler;
}
else
{
Debug.WriteLine("notifier is null");
}
// load component properties
if (HostedDevice.Components != null)
{
foreach (var component in HostedDevice.Components)
{
var host = Device.Components[component.ID];
LoadComponentProperties(host, component);
// recurse one level only (that's all the spec allows)
if (component.Components != null)
{
foreach (var subcomponent in component.Components)
{
var subhost = host.Components[subcomponent.ID];
LoadComponentProperties(subhost, subcomponent);
}
}
}
}
}
}
