private SPContainerProvider GetOrCreateContainerProvider(ISharePointBoundary tmp)
{
SPContainerProviderInfo cpInf;
if (TryGetContainerProvider(tmp.ID, out cpInf))
{
var diff = DateTime.Now - cpInf.LastRefresh;
if (diff.TotalSeconds >= RefreshPeriod)
{
Trace.WriteLine(string.Format(Messages.ContainerProviderNotValidAnymore, tmp, diff.TotalSeconds));
return UpdateContainerProviderIfNecessary(tmp, cpInf);
}
// no updates required --> just return provider
return cpInf.ContainerProvider;
}
// no provider exists, return one
return CreateContainerProvider(tmp);
}
private SPContainerProvider CreateContainerProvider(ISharePointBoundary sharePointScope, IEnumerable<IModule> modules)
{
var builder = new SPContainerBuilder();
foreach (IModule module in modules)
{
Trace.WriteLine(string.Format(Messages.RegisteringModule, module.GetType().AssemblyQualifiedName, sharePointScope));
builder.RegisterModule(module);
}
SPContainerProvider containerProvider = new SPContainerProvider(builder.Build());
lock(_containerProviders)
{
_containerProviders[sharePointScope.ID] = new SPContainerProviderInfo(containerProvider);
}
return containerProvider;
}
private SPContainerProvider CreateContainerProvider(ISharePointBoundary sharePointScope)
{
IList<IModule> modules = Configuration.GetConfiguredModules(sharePointScope.PropertyProvider);
return CreateContainerProvider(sharePointScope, modules);
}
private SPContainerProvider UpdateContainerProviderIfNecessary(ISharePointBoundary sharePointScope, SPContainerProviderInfo providerInfo)
{
var propertyProvider = sharePointScope.PropertyProvider;
var configModules = Configuration.ReadAllModuleConfigurations(propertyProvider);
foreach(var configModule in configModules)
{
// if the configuration is newer than the current provider
// which means that new modules were added, since the provider was built
if (configModule.ModifiedAt > providerInfo.LastRefresh)
{
Trace.WriteLine(string.Format(Messages.ContainerProviderNeedsUpdate, sharePointScope, providerInfo.LastRefresh, configModule.ModifiedAt, Enum.GetName(typeof(SPScope), configModule.Scope)));
return CreateContainerProvider(sharePointScope, Configuration.ReadAllModules(configModules));
}
}
Trace.WriteLine(string.Format(Messages.ContainerProviderNeedsNoUpdate, sharePointScope));
// nothing changed, return "old" provider which is still valid);)
return providerInfo.ContainerProvider;
}
