public AuditProcess Get(IEventSource session)
{
var transaction = session.Transaction;
AuditProcess auditProcess;
if (!_auditProcesses.TryGetValue(transaction, out auditProcess))
{
// No worries about registering a transaction twice - a transaction is single thread
auditProcess = new AuditProcess(_revisionInfoGenerator, session);
_auditProcesses[transaction] = auditProcess;
session.ActionQueue.RegisterProcess(() =>
{
AuditProcess currentProcess;
if (_auditProcesses.TryGetValue(transaction, out currentProcess))
{
currentProcess.DoBeforeTransactionCompletion();
}
});
session.ActionQueue.RegisterProcess(success => _auditProcesses.Remove(transaction));
}
return(auditProcess);
}
public AuditProcess Get(IEventSource session)
{
var transaction = session.Transaction;
if (!_auditProcesses.TryGetValue(transaction, out var auditProcess))
{
// No worries about registering a transaction twice - a transaction is single thread
auditProcess = new AuditProcess(_revisionInfoGenerator, session);
_auditProcesses[transaction] = auditProcess;
var tranProcess = new transactionCompletionProcess(_auditProcesses, transaction);
session.ActionQueue.RegisterProcess((IBeforeTransactionCompletionProcess)tranProcess);
session.ActionQueue.RegisterProcess((IAfterTransactionCompletionProcess)tranProcess);
}
return(auditProcess);
}
public AuditProcess Get(IEventSource session)
{
var transaction = session.Transaction;
AuditProcess auditProcess;
if (!auditProcesses.TryGetValue(transaction, out auditProcess))
{
// No worries about registering a transaction twice - a transaction is single thread
auditProcess = new AuditProcess(revisionInfoGenerator, session);
auditProcesses[transaction] = auditProcess;
session.ActionQueue.RegisterProcess(auditProcess.DoBeforeTransactionCompletion);
session.ActionQueue.RegisterProcess(success => auditProcesses.Remove(transaction));
}
return auditProcess;
}
private void GenerateFakeBidirecationalRelationWorkUnits(AuditProcess auditProcess,
IPersistentCollection newColl,
object oldColl,
string collectionEntityName,
string referencingPropertyName,
AbstractCollectionEvent evt,
RelationDescription rd)
{
// First computing the relation changes
var collectionChanges = VerCfg.EntCfg[collectionEntityName].PropertyMapper
.MapCollectionChanges(referencingPropertyName, newColl, oldColl, evt.AffectedOwnerIdOrNull);
// Getting the id mapper for the related entity, as the work units generated will corrspond to the related
// entities.
var relatedEntityName = rd.ToEntityName;
var relatedIdMapper = VerCfg.EntCfg[relatedEntityName].IdMapper;
// For each collection change, generating the bidirectional work unit.
foreach (var changeData in collectionChanges)
{
var relatedObj = changeData.GetChangedElement();
var relatedId = relatedIdMapper.MapToIdFromEntity(relatedObj);
var revType = (RevisionType)changeData.Data[VerCfg.AuditEntCfg.RevisionTypePropName];
// This can be different from relatedEntityName, in case of inheritance (the real entity may be a subclass
// of relatedEntityName).
var realRelatedEntityName = evt.Session.BestGuessEntityName(relatedObj);
// By default, the nested work unit is a collection change work unit.
var nestedWorkUnit = new CollectionChangeWorkUnit(evt.Session, realRelatedEntityName, VerCfg,
relatedId, relatedObj);
auditProcess.AddWorkUnit(new FakeBidirectionalRelationWorkUnit(evt.Session, realRelatedEntityName, VerCfg,
relatedId, referencingPropertyName, evt.AffectedOwnerOrNull, rd, revType,
changeData.GetChangedElementIndex(), nestedWorkUnit));
}
// We also have to generate a collection change work unit for the owning entity.
auditProcess.AddWorkUnit(new CollectionChangeWorkUnit(evt.Session, collectionEntityName, VerCfg,
evt.AffectedOwnerIdOrNull, evt.AffectedOwnerOrNull));
}
private void GenerateBidirectionalCollectionChangeWorkUnits(AuditProcess auditProcess,
IDatabaseEventArgs evt,
PersistentCollectionChangeWorkUnit workUnit,
RelationDescription rd)
{
// Checking if this is enabled in configuration ...
if (!VerCfg.GlobalCfg.GenerateRevisionsForCollections)
return;
// Checking if this is not a bidirectional relation - then, a revision needs also be generated for
// the other side of the relation.
// relDesc can be null if this is a collection of simple values (not a relation).
if (rd != null && rd.Bidirectional)
{
var relatedEntityName = rd.ToEntityName;
var relatedIdMapper = VerCfg.EntCfg[relatedEntityName].IdMapper;
foreach (var changeData in workUnit.CollectionChanges)
{
var relatedObj = changeData.GetChangedElement();
var relatedId = relatedIdMapper.MapToIdFromEntity(relatedObj);
auditProcess.AddWorkUnit(new CollectionChangeWorkUnit(evt.Session,
evt.Session.BestGuessEntityName(relatedObj),
VerCfg,
relatedId,
relatedObj));
}
}
}
private void GenerateBidirectionalCollectionChangeWorkUnits(AuditProcess auditProcess,
IEntityPersister entityPersister,
string entityName,
IList<object> newState,
IList<object> oldState,
ISessionImplementor session)
{
// Checking if this is enabled in configuration ...
if (!VerCfg.GlobalCfg.GenerateRevisionsForCollections)
return;
// Checks every property of the entity, if it is an "owned" to-one relation to another entity.
// If the value of that property changed, and the relation is bi-directional, a new revision
// for the related entity is generated.
var propertyNames = entityPersister.PropertyNames;
for (var i = 0; i < propertyNames.GetLength(0); i++)
{
var propertyName = propertyNames[i];
var relDesc = VerCfg.EntCfg.GetRelationDescription(entityName, propertyName);
if (relDesc != null &&
relDesc.Bidirectional &&
relDesc.RelationType == RelationType.ToOne &&
relDesc.Insertable)
{
// Checking for changes
var oldValue = oldState == null ? null : oldState[i];
var newValue = newState == null ? null : newState[i];
if (!Toolz.EntitiesEqual(session, oldValue, newValue))
{
// We have to generate changes both in the old collection (size decreses) and new collection
// (size increases).
if (newValue != null)
{
addCollectionChangeWorkUnitToAuditProcess(session, auditProcess, newValue);
}
if (oldValue != null)
{
addCollectionChangeWorkUnitToAuditProcess(session, auditProcess, oldValue);
}
}
}
}
}
private void addCollectionChangeWorkUnitToAuditProcess(ISessionImplementor session, AuditProcess auditProcess, object value)
{
// relDesc.getToEntityName() doesn't always return the entity name of the value - in case
// of subclasses, this will be root class, no the actual class. So it can't be used here.
string toEntityName;
object id;
var newValueAsProxy = value as INHibernateProxy;
if (newValueAsProxy != null)
{
toEntityName = session.BestGuessEntityName(value);
id = newValueAsProxy.HibernateLazyInitializer.Identifier;
// We've got to initialize the object from the proxy to later read its state.
value = Toolz.GetTargetFromProxy((ISession) session, newValueAsProxy);
}
else
{
toEntityName = session.GuessEntityName(value);
var idMapper = VerCfg.EntCfg[toEntityName].IdMapper;
id = idMapper.MapToIdFromEntity(value);
}
auditProcess.AddWorkUnit(new CollectionChangeWorkUnit(session, toEntityName, VerCfg, id, value));
}
