private bool DoReplicationForPriority(ReplicationPriority priority)
{
bool dataSent = false;
// loop through all registered entities
lock (Registrations)
{
foreach (var registration in Registrations.GetNameRegistrations(priority))
{
var items = m_source.Select(registration.LocalName).Take(MaxReplicationBatchSize);
foreach (var item in items)
{
item.EntityName = registration.ReplicatedName;
m_destination.Insert(item);
item.EntityName = registration.LocalName;
m_source.Delete(item);
// increment the count
m_nameCounts[registration.LocalName]++;
dataSent = true;
// yield so we're not chewing up processor time
Thread.Sleep(0);
}
}
foreach (var registration in Registrations.GetTypeRegistrations(priority))
{
var items = m_source.Select(registration.Type).Take(MaxReplicationBatchSize);
foreach (var item in items)
{
m_destination.Insert(item);
m_source.Delete(item);
// increment the count
m_typeCounts[registration.Type]++;
dataSent = true;
// yield so we're not chewing up processor time
Thread.Sleep(0);
}
}
return(dataSent);
}
}
public void AddType(Type type, ReplicationPriority priority)
{
lock (m_typeRegistrations)
{
var existing = m_typeRegistrations.FirstOrDefault(r => r.Type.Equals(type));
if (existing != null)
{
existing.Priority = priority;
}
else
{
m_typeRegistrations.Add(new ReplicationTypeRegistration(type, priority));
}
m_typeRegistrations.Sort(CompareTypeRegistrationPriorities);
}
}
internal void AddName(string localName, string replicatedName, ReplicationPriority priority)
{
lock (m_nameRegistrations)
{
var existing = m_nameRegistrations.FirstOrDefault(r => string.Compare(r.LocalName, localName, StringComparison.InvariantCultureIgnoreCase) == 0);
if (existing != null)
{
existing.Priority = priority;
}
else
{
m_nameRegistrations.Add(new ReplicationNameRegistration(localName, replicatedName, priority));
}
m_nameRegistrations.Sort(CompareNameRegistrationPriorities);
}
}
public void RegisterEntity(Type entityType, ReplicationPriority priority)
{
lock (Registrations)
{
Registrations.AddType(entityType, priority);
lock (m_typeCounts)
{
if (!m_typeCounts.ContainsKey(entityType))
{
m_typeCounts.Add(entityType, 0);
}
}
// TODO: look for failure and cache if it does (e.g. not connected scenarios)
m_destination.AddType(entityType);
}
}
public void RegisterEntity(string entityName, string replicatedName, ReplicationPriority priority)
{
lock (Registrations)
{
Registrations.AddName(entityName, replicatedName, priority);
lock (m_nameCounts)
{
if (!m_nameCounts.ContainsKey(entityName))
{
m_nameCounts.Add(entityName, 0);
}
}
// TODO: look for failure and cache if it does (e.g. not connected scenarios)
var definition = m_source.DiscoverDynamicEntity(entityName);
definition.EntityName = replicatedName;
// the replicated entity cannot use the same auto-increment field as the local table or we'll end up with replication problems where local IDs don't match remote IDs
if (CreateIdentityFieldInReplicatedTable)
{
var existing = definition.Fields.KeyField;
if (existing != null)
{
existing.IsPrimaryKey = false;
}
definition.EntityAttribute.KeyScheme = KeyScheme.Identity;
definition.Fields.Add(new FieldAttribute("ReplID", System.Data.DbType.Int32, true), true);
}
else
{
definition.EntityAttribute.KeyScheme = KeyScheme.None;
}
m_destination.RegisterDynamicEntity(definition, true);
}
}
public IEnumerable <ReplicationNameRegistration> GetNameRegistrations(ReplicationPriority priority)
{
return(m_nameRegistrations.Where(r => r.Priority == priority));
}
internal void AddName(string localName, ReplicationPriority priority)
{
AddName(localName, null, priority);
}
public ReplicationTypeRegistration(Type type, ReplicationPriority priority)
{
Type = type;
Priority = priority;
}
public ReplicationNameRegistration(string localName, string replicatedName, ReplicationPriority priority)
{
LocalName = localName;
ReplicatedName = replicatedName ?? localName;
Priority = priority;
}
public ReplicationNameRegistration(string localName, ReplicationPriority priority)
: this(localName, localName, priority)
{
}
public void RegisterEntity(string entityName, ReplicationPriority priority)
{
RegisterEntity(entityName, null, priority);
}
public void RegisterEntity <T>(ReplicationPriority priority)
{
RegisterEntity(typeof(T), priority);
}
