private ProviderHandler(
Type type,
ProviderDescriptionAttribute pluginDescriptionAttribute,
ProviderCapabilityAttribute capabilityAttributes)
{
Initialize(type, pluginDescriptionAttribute, capabilityAttributes);
}
internal ProviderHandler(ProviderHandler fromCopy)
{
m_type = fromCopy.m_type;
m_descriptionAttribute = fromCopy.m_descriptionAttribute;
m_capabilityAttribute = fromCopy.m_capabilityAttribute;
m_provider = (IProvider)Activator.CreateInstance(m_type);
m_internalId = fromCopy.InternalId;
VersionChanged = fromCopy.VersionChanged;
}
private void Initialize(
Type type,
ProviderDescriptionAttribute pluginDescriptionAttribute,
ProviderCapabilityAttribute capabilityAttributes)
{
this.m_type = type;
m_descriptionAttribute = pluginDescriptionAttribute;
m_capabilityAttribute = capabilityAttributes;
m_provider = (IProvider)Activator.CreateInstance(type);
}
/// <summary>
///
/// </summary>
/// <param name="providerAttributes"></param>
/// <returns>True if a new provider is saved; False if an existing one is found</returns>
internal static bool TrySaveProvider(ProviderDescriptionAttribute providerAttributes, out int internalId)
{
using (RuntimeEntityModel context = RuntimeEntityModel.CreateInstance())
{
var providerQuery =
from p in context.RTProviderSet
where p.ReferenceName.Equals(providerAttributes.Id) &&
p.FriendlyName.Equals(providerAttributes.Name) &&
(p.ProviderVersion.Equals(providerAttributes.Version) || string.IsNullOrEmpty(p.ProviderVersion))
select p;
if (providerQuery.Count() > 0)
{
RTProvider existingProvider = providerQuery.First();
internalId = existingProvider.Id;
if (string.IsNullOrEmpty(existingProvider.ProviderVersion))
{
// this is possible in older version of the toolkit
// we need to fill up the missing info and assume that the provider was not in DB
existingProvider.ProviderVersion = providerAttributes.Version;
context.TrySaveChanges();
return(true);
}
else
{
return(false);
}
}
RTProvider rtProvider = RTProvider.CreateRTProvider(0, providerAttributes.Id, providerAttributes.Name);
rtProvider.ProviderVersion = providerAttributes.Version;
context.AddToRTProviderSet(rtProvider);
context.TrySaveChanges();
internalId = rtProvider.Id;
return(true);
}
}