protected bool IsRepeatedCommand(IAttributeCommand command, IEventStoreAggregateId eventStoreAggregateId, IAttributeState state)
{
bool repeated = false;
if (((IAttributeStateProperties)state).Version > command.AggregateVersion)
{
var lastEvent = EventStore.GetEvent(typeof(IAttributeEvent), eventStoreAggregateId, command.AggregateVersion);
if (lastEvent != null && lastEvent.CommandId == command.CommandId)
{
repeated = true;
}
}
return(repeated);
}
protected void ThrowOnInconsistentCommands(IAttributeCommand command, IAttributeValueCommand innerCommand)
{
var properties = command as ICreateOrMergePatchOrDeleteAttribute;
var innerProperties = innerCommand as ICreateOrMergePatchOrRemoveAttributeValue;
if (properties == null || innerProperties == null)
{
return;
}
var outerAttributeIdName = "AttributeId";
var outerAttributeIdValue = properties.AttributeId;
var innerAttributeIdName = "AttributeId";
var innerAttributeIdValue = innerProperties.AttributeId;
SetNullInnerIdOrThrowOnInconsistentIds(innerProperties, innerAttributeIdName, innerAttributeIdValue, outerAttributeIdName, outerAttributeIdValue);
}// END ThrowOnInconsistentCommands /////////////////////
protected virtual void Update(IAttributeCommand c, Action <IAttributeAggregate> action)
{
var aggregateId = c.AggregateId;
var state = StateRepository.Get(aggregateId, false);
var aggregate = GetAttributeAggregate(state);
var eventStoreAggregateId = ToEventStoreAggregateId(aggregateId);
var repeated = IsRepeatedCommand(c, eventStoreAggregateId, state);
if (repeated)
{
return;
}
aggregate.ThrowOnInvalidStateTransition(c);
action(aggregate);
Persist(eventStoreAggregateId, aggregate, state);
}
protected virtual void Update(IAttributeCommand c, Action <IAttributeAggregate> action)
{
var aggregateId = c.AggregateId;
var state = StateRepository.Get(aggregateId);
var aggregate = GetAttributeAggregate(state);
var eventStoreAggregateId = ToEventStoreAggregateId(aggregateId);
var repeated = IsRepeatedCommand(c, eventStoreAggregateId, state);
if (repeated)
{
return;
}
aggregate.ThrowOnInvalidStateTransition(c);
action(aggregate);
EventStore.AppendEvents(eventStoreAggregateId, ((IAttributeStateProperties)state).Version, aggregate.Changes, () => { StateRepository.Save(state); });
}
}// END ThrowOnInconsistentCommands /////////////////////
protected void ThrowOnInconsistentCommands(IAttributeCommand command, IAttributeAliasCommand innerCommand)
{
var properties = command as ICreateOrMergePatchOrDeleteAttribute;
var innerProperties = innerCommand as ICreateOrMergePatchOrRemoveAttributeAlias;
if (properties == null || innerProperties == null)
{
return;
}
if (innerProperties.AttributeId == default(string))
{
innerProperties.AttributeId = properties.AttributeId;
}
else
{
var outerAttributeIdName = "AttributeId";
var outerAttributeIdValue = properties.AttributeId;
var innerAttributeIdName = "AttributeId";
var innerAttributeIdValue = innerProperties.AttributeId;
ThrowOnInconsistentIds(innerProperties, innerAttributeIdName, innerAttributeIdValue, outerAttributeIdName, outerAttributeIdValue);
}
}// END ThrowOnInconsistentCommands /////////////////////
}// END ThrowOnInconsistentCommands /////////////////////
protected virtual IAttributeValueStateEvent Map(IAttributeValueCommand c, IAttributeCommand outerCommand, long version, IAttributeState outerState)
{
var create = (c.CommandType == CommandType.Create) ? (c as ICreateAttributeValue) : null;
if (create != null)
{
return(MapCreate(create, outerCommand, version, outerState));
}
var merge = (c.CommandType == CommandType.MergePatch) ? (c as IMergePatchAttributeValue) : null;
if (merge != null)
{
return(MapMergePatch(merge, outerCommand, version, outerState));
}
var remove = (c.CommandType == CommandType.Remove) ? (c as IRemoveAttributeValue) : null;
if (remove != null)
{
return(MapRemove(remove, outerCommand, version));
}
throw new NotSupportedException();
}
private static bool IsCommandCreate(IAttributeCommand c)
{
return(c.Version == AttributeState.VersionZero);
}
}// END Map(IMergePatch... ////////////////////////////
protected virtual IAttributeValueStateRemoved MapRemove(IRemoveAttributeValue c, IAttributeCommand outerCommand, long version)
{
c.RequesterId = outerCommand.RequesterId;
var stateEventId = new AttributeValueStateEventId(c.AttributeId, c.Value, version);
IAttributeValueStateRemoved e = NewAttributeValueStateRemoved(stateEventId);
e.CreatedBy = (string)c.RequesterId;
e.CreatedAt = DateTime.Now;
return(e);
}// END Map(IRemove... ////////////////////////////
}// END Map(ICreate... ////////////////////////////
protected virtual IAttributeValueStateMergePatched MapMergePatch(IMergePatchAttributeValue c, IAttributeCommand outerCommand, long version, IAttributeState outerState)
{
c.RequesterId = outerCommand.RequesterId;
var stateEventId = new AttributeValueStateEventId(c.AttributeId, c.Value, version);
IAttributeValueStateMergePatched e = NewAttributeValueStateMergePatched(stateEventId);
var s = outerState.AttributeValues.Get(c.Value);
e.Name = c.Name;
e.Description = c.Description;
e.ReferenceId = c.ReferenceId;
e.Active = c.Active;
e.IsPropertyNameRemoved = c.IsPropertyNameRemoved;
e.IsPropertyDescriptionRemoved = c.IsPropertyDescriptionRemoved;
e.IsPropertyReferenceIdRemoved = c.IsPropertyReferenceIdRemoved;
e.IsPropertyActiveRemoved = c.IsPropertyActiveRemoved;
e.CreatedBy = (string)c.RequesterId;
e.CreatedAt = DateTime.Now;
return(e);
}// END Map(IMergePatch... ////////////////////////////
protected virtual IAttributeValueStateCreated MapCreate(ICreateAttributeValue c, IAttributeCommand outerCommand, long version, IAttributeState outerState)
{
c.RequesterId = outerCommand.RequesterId;
var stateEventId = new AttributeValueStateEventId(c.AttributeId, c.Value, version);
IAttributeValueStateCreated e = NewAttributeValueStateCreated(stateEventId);
var s = outerState.AttributeValues.Get(c.Value);
e.Name = c.Name;
e.Description = c.Description;
e.ReferenceId = c.ReferenceId;
e.Active = c.Active;
e.CreatedBy = (string)c.RequesterId;
e.CreatedAt = DateTime.Now;
return(e);
}// END Map(ICreate... ////////////////////////////
}// END Map(IMergePatch... ////////////////////////////
protected virtual IAttributeAliasStateRemoved MapRemove(IRemoveAttributeAlias c, IAttributeCommand outerCommand, long version)
{
c.RequesterId = outerCommand.RequesterId;
var stateEventId = new AttributeAliasEventId(c.AttributeId, c.Code, version);
IAttributeAliasStateRemoved e = NewAttributeAliasStateRemoved(stateEventId);
e.CreatedBy = (string)c.RequesterId;
e.CreatedAt = ApplicationContext.Current.TimestampService.Now <DateTime>();
return(e);
}// END Map(IRemove... ////////////////////////////
}// END Map(ICreate... ////////////////////////////
protected virtual IAttributeAliasStateMergePatched MapMergePatch(IMergePatchAttributeAlias c, IAttributeCommand outerCommand, long version, IAttributeState outerState)
{
c.RequesterId = outerCommand.RequesterId;
var stateEventId = new AttributeAliasEventId(c.AttributeId, c.Code, version);
IAttributeAliasStateMergePatched e = NewAttributeAliasStateMergePatched(stateEventId);
var s = outerState.Aliases.Get(c.Code);
e.Name = c.Name;
e.Active = c.Active;
e.IsPropertyNameRemoved = c.IsPropertyNameRemoved;
e.IsPropertyActiveRemoved = c.IsPropertyActiveRemoved;
e.CreatedBy = (string)c.RequesterId;
e.CreatedAt = ApplicationContext.Current.TimestampService.Now <DateTime>();
return(e);
}// END Map(IMergePatch... ////////////////////////////
