protected static void DefaultOptions(ref RFCatalogOptions options)
{
if (options == null)
{
options = new RFCatalogOptions();
}
}
public T LoadDocumentContent <T>(RFCatalogKey key, RFCatalogOptions options = null) where T : class
{
var document = (LoadEntry(key, options) as RFDocument);
if (document != null && document.IsValid)
{
return(document.GetContent <T>());
}
return(null);
}
/*public static RFGraphInstance DeriveFrom(RFInstruction i)
* {
* if (i is RFGraphProcessInstruction)
* {
* var gi = (i as RFGraphProcessInstruction).Instance;
* if (gi != null && !gi.IsNull())
* {
* return gi;
* }
* }
*
* if (i is RFParamProcessInstruction)
* {
* var p = (i as RFParamProcessInstruction).Param;
* if (p is RFEngineProcessorGraphInstanceParam)
* {
* var gi = (p as RFEngineProcessorGraphInstanceParam).Instance;
* if (gi != null && !gi.IsNull())
* {
* return gi;
* }
* }
* }
*
* if (i.Event != null && i.Event is RFCatalogUpdateEvent)
* {
* var gi = (i.Event as RFCatalogUpdateEvent).Key?.GraphInstance;
* if (gi != null && !gi.IsNull())
* {
* return gi;
* }
* }
*
* return null;
* }*/
public static RFCatalogOptions ImplyOptions(RFGraphIOMapping ioMapping /*, PropertyInfo propertyInfo*/)
{
if (ioMapping == null)
{
throw new RFSystemException(typeof(RFGraphInstance), "Missing IOMapping");
}
var options = new RFCatalogOptions();
/*var dateBehaviour = ioMapping.DateBehaviour; propertyInfo.GetCustomAttributes(typeof(RFDateBehaviourAttribute), true).FirstOrDefault() as RFDateBehaviourAttribute;
* if (dateBehaviour != null)
* {
* options.DateBehaviour = dateBehaviour.DateBehaviour;
* }*/
options.DateBehaviour = ioMapping.DateBehaviour;
return(options);
}
public RFCatalogEntry LoadEntry(RFCatalogKey key, RFCatalogOptions options = null)
{
DefaultOptions(ref options);
if (key is RFCatalogKey)
{
lock (_memoryStore)
{
if (_memoryStore.ContainsKey(key.ToString()))
{
return(_memoryStore[key.ToString()]);
}
}
switch (options.DateBehaviour)
{
case RFDateBehaviour.NotSet:
case RFDateBehaviour.Exact:
{
var item = _catalog.LoadItem(key as RFCatalogKey, options.Version, options.IgnoreContent);
return((item != null && item.IsValid) ? item : null);
}
case RFDateBehaviour.Dateless:
{
var keyToLoad = key.CreateForInstance(new RFGraphInstance
{
Name = key.GraphInstance.Name,
ValueDate = null
});
var item = _catalog.LoadItem(keyToLoad, options.Version, options.IgnoreContent);
return((item != null && item.IsValid) ? item : null);
}
case RFDateBehaviour.Latest:
case RFDateBehaviour.Previous:
{
if (key.GraphInstance == null || !key.GraphInstance.ValueDate.HasValue)
{
throw new RFSystemException(this, "Unable to load latest date for key without date {0}", key);
}
var allKeys = _catalog.GetKeyInstances(key);
var candidateDates = new SortedSet <RFDate>();
foreach (var candidateKey in allKeys.Where(k => k.Key.Name == key.GraphInstance.Name))
{
if (candidateKey.Value.GraphInstance.ValueDate.Value <= key.GraphInstance.ValueDate.Value)
{
if ((options.DateBehaviour == RFDateBehaviour.Latest) ||
(options.DateBehaviour == RFDateBehaviour.Previous && candidateKey.Value.GraphInstance.ValueDate.Value < key.GraphInstance.ValueDate.Value))
{
candidateDates.Add(candidateKey.Value.GraphInstance.ValueDate.Value);
}
}
}
if (candidateDates.Count == 0)
{
SystemLog.Warning(this, "No latest date instance item found for key {0}", key);
return(null);
}
foreach (var latestDate in candidateDates.OrderByDescending(d => d))
{
var keyToLoad = key.CreateForInstance(new RFGraphInstance
{
Name = key.GraphInstance.Name,
ValueDate = latestDate
});
var item = _catalog.LoadItem(keyToLoad, options.Version, options.IgnoreContent);
if (item != null && item.IsValid)
{
return(item);
}
}
return(null);
}
default:
throw new RFSystemException(this, "Unsupported date behaviour in LoadEntry: {0}", options.DateBehaviour);
}
}
else
{
throw new RFSystemException(this, "Unknown store key type {0}", key.ToString());
}
}
