public virtual void Populate()
{
var localRequest = new Object();
lock (currentRequestLock)
{
currentRequest = localRequest;
}
if (GuiThreadHelper.IsInGuiThread())
{
IFilterDescriptor filterDescriptor = GetFilterDescriptor();
IList <ISortDescriptor> sortDescriptors = GetSortDescriptors();
IPagingRequest pagingRequest = GetPagingRequest();
Object[] contextInformation = GetContextInformation();
Model.IsBusy = true;
ThreadPool.Queue((GenericViewModel <T> model) =>
{
CacheContext.ExecuteWithCache <Object>(CacheProvider.GetCurrentCache(), delegate()
{
ConfigureCacheWithEagerLoads(Cache);
PopulateAsync(model, filterDescriptor, sortDescriptors, pagingRequest, contextInformation, Cache, localRequest);
return(null);
});
}, Model);
}
else
{
IFilterDescriptor filterDescriptor = null;
IList <ISortDescriptor> sortDescriptors = null;
IPagingRequest pagingRequest = null;
Object[] contextInformation = null;
GuiThreadHelper.InvokeInGuiAndWait(delegate()
{
filterDescriptor = GetFilterDescriptor();
sortDescriptors = GetSortDescriptors();
pagingRequest = GetPagingRequest();
contextInformation = GetContextInformation();
Model.IsBusy = true;
});
CacheContext.ExecuteWithCache <Object>(CacheProvider.GetCurrentCache(), delegate()
{
ConfigureCacheWithEagerLoads(Cache);
PopulateAsync(Model, filterDescriptor, sortDescriptors, pagingRequest, contextInformation, Cache, localRequest);
return(null);
});
}
}
public ICUDResult ApplyCUDResultOnEntitiesOfCache(ICUDResult cudResult, bool checkBaseState, IIncrementalMergeState incrementalState)
{
ICache cache = incrementalState.GetStateCache().CurrentCache;
if (cache.CurrentCache == cache)
{
// given cache is already the current cache
return(ApplyIntern(cudResult, checkBaseState, (IncrementalMergeState)incrementalState));
}
return(CacheContext.ExecuteWithCache(cache, new IResultingBackgroundWorkerParamDelegate <ICUDResult, ICUDResult>(delegate(ICUDResult state)
{
return ApplyIntern(state, checkBaseState, (IncrementalMergeState)incrementalState);
}), cudResult));
}
protected override void InterceptIntern(IInvocation invocation)
{
MethodInfo method = invocation.Method;
if (method.DeclaringType.Equals(typeof(Object)))
{
InvokeTarget(invocation);
return;
}
Object result = CacheContext.ExecuteWithCache(CacheProvider, delegate()
{
InvokeTarget(invocation);
return(invocation.ReturnValue);
});
}
public virtual void DataChanged(IDataChange dataChange, DateTime dispatchTime, long sequenceId)
{
dataChange = dataChange.Derive(InterestedEntityTypes);
if (dataChange.IsEmpty)
{
return;
}
ISet <Object> directObjectsToDelete = null;
ISet <Type> requestedTypes = new HashSet <Type>();
IDictionary <Type, IEntityMetaData> typeToMetaDataDict = new Dictionary <Type, IEntityMetaData>();
GuiThreadHelper.InvokeInGuiAndWait(delegate()
{
IList <T> entities = Model.Objects;
for (int i = entities.Count; i-- > 0;)
{
Object entity = entities[i];
requestedTypes.Add(entity.GetType());
}
});
IList <IDataChangeEntry> dataChangeEntries = dataChange.Inserts;
for (int a = dataChangeEntries.Count; a-- > 0;)
{
requestedTypes.Add(dataChangeEntries[a].EntityType);
}
dataChangeEntries = dataChange.Updates;
for (int a = dataChangeEntries.Count; a-- > 0;)
{
requestedTypes.Add(dataChangeEntries[a].EntityType);
}
dataChangeEntries = dataChange.Deletes;
for (int a = dataChangeEntries.Count; a-- > 0;)
{
requestedTypes.Add(dataChangeEntries[a].EntityType);
}
IList <IEntityMetaData> metaDatas = EntityMetaDataProvider.GetMetaData(ListUtil.ToList(requestedTypes));
foreach (IEntityMetaData metaData in metaDatas)
{
typeToMetaDataDict[metaData.EntityType] = metaData;
}
bool consistsOnlyOfDirectDeletes = false;
if (dataChange.Deletes.Count > 0)
{
consistsOnlyOfDirectDeletes = true;
foreach (IDataChangeEntry deleteEntry in dataChange.Deletes)
{
if (deleteEntry is DirectDataChangeEntry)
{
if (directObjectsToDelete == null)
{
directObjectsToDelete = new IdentityHashSet <Object>();
}
directObjectsToDelete.Add(((DirectDataChangeEntry)deleteEntry).Entry);
}
else
{
consistsOnlyOfDirectDeletes = false;
}
}
}
IList <T> interestingEntities = null;
Object[] contextInformation = GetContextInformation();
IFilterDescriptor filterDescriptor = GetFilterDescriptor();
IList <ISortDescriptor> sortDescriptors = GetSortDescriptors();
IPagingRequest pagingRequest = GetPagingRequest();
IPagingResponse pagingResponse = null;
List <IDataChangeEntry> modifiedEntries = new List <IDataChangeEntry>();
modifiedEntries.AddRange(dataChange.All);
if (!consistsOnlyOfDirectDeletes)
{
interestingEntities = CacheContext.ExecuteWithCache(CacheProvider.GetCurrentCache(), delegate()
{
ConfigureCacheWithEagerLoads(Cache);
if (Refresher is IPagingRefresher <T> )
{
interestingEntities = new List <T>();
pagingResponse = ((IPagingRefresher <T>)Refresher).Refresh(modifiedEntries, filterDescriptor, sortDescriptors, pagingRequest, contextInformation);
foreach (Object obj in pagingResponse.Result)
{
interestingEntities.Add((T)obj);
}
return(interestingEntities);
}
else
{
if (filterDescriptor != null || sortDescriptors != null)
{
contextInformation = new Object[2];
contextInformation[0] = filterDescriptor;
contextInformation[1] = sortDescriptors;
}
return(((IRefresher <T>)Refresher).Refresh(modifiedEntries, contextInformation));
}
});
}
GuiThreadHelper.InvokeInGuiAndWait(delegate()
{
IList <T> entities = Model.Objects;
ISet <T> entitiesToAdd = null;
ISet <T> entitiesToRemove = null;
IDictionary <T, T> entitiesToReplace = null;
IDictionary <IObjRef, T> oldObjRefToOldEntityMap = null;
bool mergeModel = false;
if (interestingEntities != null && interestingEntities.Count > 0)
{
entitiesToAdd = new IdentityHashSet <T>(interestingEntities);
entitiesToRemove = new IdentityHashSet <T>(entities);
entitiesToReplace = new IdentityDictionary <T, T>();
oldObjRefToOldEntityMap = new Dictionary <IObjRef, T>();
mergeModel = true;
}
for (int i = entities.Count; i-- > 0;)
{
T oldEntity = entities[i];
if (directObjectsToDelete != null && directObjectsToDelete.Contains(oldEntity))
{
if (entitiesToRemove != null)
{
entitiesToRemove.Remove(oldEntity);
}
Model.RemoveAt(i);
continue;
}
Type oldEntityType = ProxyHelper.GetRealType(oldEntity.GetType());
PrimitiveMember idMember = typeToMetaDataDict[oldEntityType].IdMember;
Object oldEntityId = idMember.GetValue(oldEntity, false);
if (oldEntityId == null)
{
if (entitiesToRemove != null)
{
entitiesToRemove.Remove(oldEntity);
}
// Unpersisted object. This object should not be removed
// only because of a background DCE
continue;
}
bool entryRemoved = false;
foreach (IDataChangeEntry deleteEntry in dataChange.Deletes)
{
if (deleteEntry is DirectDataChangeEntry)
{
continue;
}
Object id = deleteEntry.Id;
if (!EqualsItems(oldEntityType, oldEntityId, deleteEntry.EntityType, id))
{
continue;
}
if (entitiesToRemove != null)
{
entitiesToRemove.Remove(oldEntity);
}
Model.RemoveAt(i);
entryRemoved = true;
break;
}
if (entryRemoved)
{
continue;
}
if (mergeModel)
{
IObjRef oldObjRef = new ObjRef(oldEntityType, ObjRef.PRIMARY_KEY_INDEX, oldEntityId, null);
T existingOldEntity = DictionaryExtension.ValueOrDefault(oldObjRefToOldEntityMap, oldObjRef);
if (existingOldEntity == null)
{
oldObjRefToOldEntityMap.Add(oldObjRef, oldEntity);
}
else if (!Object.ReferenceEquals(existingOldEntity, oldEntity))
{
// Force duplicate key exception
oldObjRefToOldEntityMap.Add(oldObjRef, oldEntity);
}
}
}
if (oldObjRefToOldEntityMap != null && oldObjRefToOldEntityMap.Count > 0)
{
IDictionary <IObjRef, T> newObjRefToNewEntityMap = new Dictionary <IObjRef, T>();
for (int a = interestingEntities.Count; a-- > 0;)
{
T newEntity = interestingEntities[a];
Type newEntityType = ProxyHelper.GetRealType(newEntity.GetType());
PrimitiveMember idMember = typeToMetaDataDict[newEntityType].IdMember;
Object newEntityId = idMember.GetValue(newEntity, false);
IObjRef newObjRef = new ObjRef(newEntityType, ObjRef.PRIMARY_KEY_INDEX, newEntityId, null);
newObjRefToNewEntityMap.Add(newObjRef, newEntity);
}
DictionaryExtension.Loop(oldObjRefToOldEntityMap, delegate(IObjRef objRef, T oldEntity)
{
T newEntity = DictionaryExtension.ValueOrDefault(newObjRefToNewEntityMap, objRef);
if (newEntity == null)
{
// Nothing to do if current oldEntity has no corresponding newEntity
return;
}
entitiesToAdd.Remove(newEntity);
if (!Object.ReferenceEquals(oldEntity, newEntity) &&
(dataChange.IsLocalSource || !(oldEntity is IDataObject) || !((IDataObject)oldEntity).ToBeUpdated))
{
entitiesToReplace[oldEntity] = newEntity;
}
entitiesToRemove.Remove(oldEntity);
});
}
if (mergeModel)
{
for (int a = entities.Count; a-- > 0;)
{
T item = entities[a];
if (entitiesToRemove.Contains(item))
{
Model.RemoveAt(a);
continue;
}
T replacingItem = DictionaryExtension.ValueOrDefault(entitiesToReplace, item);
if (replacingItem != null)
{
Model.Replace(a, replacingItem);
continue;
}
}
IEnumerator <T> enumerator = entitiesToAdd.GetEnumerator();
while (enumerator.MoveNext())
{
T entityToAdd = enumerator.Current;
Model.Add(entityToAdd);
}
if (hasPagedViewModel)
{
UpdatePagingInformation(pagingResponse);
}
UpdateAfterDCE();
}
});
}
public virtual void execute()
{
long start = Environment.TickCount;
// Do something for nearly 60 seconds (job gets invoked every 60 seconds
while (Environment.TickCount - start < 58000)
{
IList <TestEntity> allTestEntities = null;
IList <TestEntity2> allTest2Entities = null;
ICache newCache = CacheProvider.GetCurrentCache();
CacheContext.ExecuteWithCache <Object>(newCache, delegate()
{
allTestEntities = HelloWorldService.GetAllTestEntities();
allTest2Entities = HelloWorldService.GetAllTest2Entities();
return(null);
});
if (allTestEntities.Count > 0)
{
IRevertChangesSavepoint savepoint = RevertChangesHelper.CreateSavepoint(allTestEntities);
allTestEntities[0].MyString = "Hallo";
allTestEntities[0].Version = -67;
allTestEntities[0].Relation = null;
savepoint.RevertChanges();
}
// Evaluate random type of change ( INSERT / UPDATE / DELETE / NOTHING)
double randomChange = random.NextDouble();
bool entity2Change = random.NextDouble() > 0.66;
// Evaluate entity to change by its index in the result list of existing entities (necessary for UPDATE /
// DELETE)
int changeIndex = (int)(random.NextDouble() * allTestEntities.Count);
// Evaluate entity2 to select its index in the result list of existing entities (necessary for INSERT of
// entity1)
int selectEntity2Index = (int)(random.NextDouble() * allTest2Entities.Count);
// Evaluate new value to change on chosen entity (necessary for INSERT / UPDATE)
int randomNewValue = (int)(random.NextDouble() * Int32.MaxValue / 2);
// Map from randomChange to the enum-based operation to execute
ChangeOperation changeOperation;
if (randomChange < 0.10) // 10% probability for INSERTs
{
changeOperation = ChangeOperation.INSERT;
}
else if (randomChange < 0.20) // 10% probability for DELETEs
{
changeOperation = ChangeOperation.DELETE;
}
else if (randomChange < 0.40) // 20% probability for doing NOTHING
{
changeOperation = ChangeOperation.NOTHING;
}
else
// 60% probablity for doing an ordinary UPDATE on an entity
{
changeOperation = ChangeOperation.UPDATE;
}
if (entity2Change && allTestEntities.Count > 0)
{
// If there are less than 10 entities, force to insertion of one
if (allTest2Entities.Count < 10)// || ChangeOperation.INSERT.Equals(changeOperation))
{
TestEntity2 newEntity = new TestEntity2();
newEntity.MyValue2 = randomNewValue;
HelloWorldService.SaveTestEntities2(newEntity);
allTest2Entities.Add(newEntity);
}
//// If there are more than 20 entities, force to deletion of one
else if (allTestEntities.Count > 20 || ChangeOperation.DELETE.Equals(changeOperation))
{
TestEntity2 deleteEntity = allTest2Entities[selectEntity2Index];
allTest2Entities.RemoveAt(selectEntity2Index);
HelloWorldService.DeleteTestEntities2(deleteEntity);
}
else if (ChangeOperation.UPDATE.Equals(changeOperation))
{
TestEntity2 updateEntity = allTest2Entities[selectEntity2Index];
updateEntity.MyValue2 = randomNewValue;
HelloWorldService.SaveTestEntities2(updateEntity);
}
else
{
TestEntity2 noOpEntity = allTest2Entities[selectEntity2Index];
// Change nothing, but try to save entity (results in NO-OP)
HelloWorldService.SaveTestEntities2(noOpEntity);
}
}
else
{
// If there are less than 10 entities, force to insertion of one
if (allTestEntities.Count < 10)// || ChangeOperation.INSERT.Equals(changeOperation))
{
TestEntity newEntity = new TestEntity();
newEntity.MyValue = randomNewValue;
HelloWorldService.SaveTestEntities(newEntity);
allTestEntities.Add(newEntity);
}
// If there are more than 20 entities, force to deletion of one
else if (allTestEntities.Count > 20 || ChangeOperation.DELETE.Equals(changeOperation))
{
TestEntity deleteEntity = allTestEntities[changeIndex];
allTestEntities.RemoveAt(changeIndex);
HelloWorldService.DeleteTestEntities(deleteEntity);
}
else if (ChangeOperation.UPDATE.Equals(changeOperation))
{
TestEntity updateEntity = allTestEntities[changeIndex];
TestEntity2 testEntity2 = allTest2Entities.Count > 0 ? allTest2Entities[selectEntity2Index] : null;
updateEntity.MyValue = randomNewValue;
updateEntity.Relation = testEntity2;
updateEntity.EmbeddedObject.Name = "Name_" + randomNewValue;
updateEntity.EmbeddedObject.Value = randomNewValue;
HelloWorldService.SaveTestEntities(updateEntity);
}
else
{
TestEntity noOpEntity = allTestEntities[changeIndex];
// Change nothing, but try to save entity (results in NO-OP)
HelloWorldService.SaveTestEntities(noOpEntity);
}
}
Thread.Sleep(500);
}
}
