/// <summary>
/// Creates new instance of Workspace type
/// </summary>
internal Workspace(Guid snapshotId, TimeSpan timeout, INodeProvider <Guid, object, EdgeData> nodeProvider, IWorkspaceFacade commitTarget, ProxyCreatorService proxyCreatorService, TypesService typesService, IsolationLevel isolationLevel, IProxyMap immutableProxyMap)
{
this.workspaceId = Guid.NewGuid();
this.thread = Thread.CurrentThread;
if (!typeof(TDataType).IsInterface)
{
throw new ArgumentException("Interface type expected: " + typeof(TDataType).AssemblyQualifiedName);
}
this.snapshotId = snapshotId;
this.nodeProvider = nodeProvider;
this.proxyCreatorService = proxyCreatorService;
this.typesService = typesService;
this.isolationLevel = isolationLevel;
this.workspaceFacade = commitTarget;
this.immutableProxyMap = immutableProxyMap;
workspaceFacade.OpenWorkspace(workspaceId, snapshotId, isolationLevel, timeout);
if (isolationLevel == IsolationLevel.ReadOnly)
{
// Rely directly on parent provider if read only
this.objectInstancesService = new ObjectInstancesService(nodeProvider, typesService);
this.immutableInstancesService = new ObjectInstancesService(nodeProvider, typesService);
this.collectionInstancesService = new CollectionInstancesService(nodeProvider, typesService);
this.dictionaryInstancesService = new DictionaryInstancesService(nodeProvider, typesService);
}
else
{
// Construct isolated provider for local changes
var isolatedStorage = new DirectNodeProviderUnsafe <Guid, object, EdgeData>(new MemoryStorageUnsafe <Guid, object>(), false);
isolatedProvider = new IsolatedNodeProvider(nodeProvider, isolatedStorage, thread);
this.objectInstancesService = new ObjectInstancesService(isolatedProvider, typesService);
this.immutableInstancesService = new ObjectInstancesService(nodeProvider, typesService);
this.collectionInstancesService = new CollectionInstancesService(isolatedProvider, typesService);
this.dictionaryInstancesService = new DictionaryInstancesService(isolatedProvider, typesService);
}
this.runtimeProxyFacade = new RuntimeProxyFacade(typesService, objectInstancesService, immutableInstancesService, collectionInstancesService, new CollectionInstancesService(nodeProvider, typesService), dictionaryInstancesService, new DictionaryInstancesService(nodeProvider, typesService), mutableProxyMap, immutableProxyMap, proxyCreatorService);
// Initialize root data proxy
var rootObjectId = commitTarget.GetRootObjectId(snapshotId);
rootProxy = proxyCreatorService.NewObject <TDataType>(runtimeProxyFacade, rootObjectId, isolationLevel == IsolationLevel.ReadOnly);
if (isolationLevel == IsolationLevel.ReadOnly)
{
immutableProxyMap.AddProxy(rootObjectId, rootProxy);
}
else
{
mutableProxyMap.AddProxy(rootObjectId, rootProxy);
}
}
public RuntimeProxyFacade(TypesService typesService, ObjectInstancesService objectInstancesService, ObjectInstancesService immutableInstancesService, CollectionInstancesService collectionInstancesService, CollectionInstancesService immutableCollectionInstancesService, DictionaryInstancesService dictionaryInstancesService, DictionaryInstancesService immutableDictionaryInstancesService, IProxyMap mutableProxyMap, IProxyMap immutableProxyMap, ProxyCreatorService proxyCreatorService)
{
this.objectInstancesService = objectInstancesService;
this.immutableInstancesService = immutableInstancesService;
this.collectionInstancesService = collectionInstancesService;
this.dictionaryInstancesService = dictionaryInstancesService;
this.immutableCollectionInstancesService = immutableCollectionInstancesService;
this.immutableDictionaryInstancesService = immutableDictionaryInstancesService;
this.mutableProxyMap = mutableProxyMap;
this.immutableProxyMap = immutableProxyMap;
this.proxyCreatorService = proxyCreatorService;
this.typesService = typesService;
}
private void InitializeServices()
{
typesService = new TypesService(provider);
var interfaceToTypeIdMapping = typesService.InitializeTypeSystem(serverContext.EntityTypes);
var completeTypesList = interfaceToTypeIdMapping.Keys;
generationService = new GenerationService(typesService);
// TODO (nsabo) Optional loading of proxy types from the given assembly (we dont want always to generate on small devices, Silverlight...)
// Note: Collection/Dictionary types are not saved in the assembly
var interfaceToGeneratedMapping = generationService.GenerateProxyTypes(completeTypesList, Properties.Settings.Default.SaveGeneratedAssemblyToDisk, Properties.Settings.Default.GeneratedAssemblyFileName);
proxyCreatorService = new ProxyCreatorService(completeTypesList, interfaceToTypeIdMapping, interfaceToGeneratedMapping);
StaticProxyFacade.Initialize(typesService);
}
private void InitializeServices(Type rootEntityType, Type[] entityTypes, UpgradeConfiguration upgradeConfiguration)
{
this.rootEntityType = rootEntityType;
this.entityTypes = entityTypes;
typesService = new TypesService(provider);
objectSerializationService.TypesService = typesService;
var interfaceToTypeIdMapping = typesService.InitializeTypeSystem(entityTypes);
var completeTypesList = interfaceToTypeIdMapping.Keys;
generationService = new GenerationService(typesService);
// TODO (nsabo) Optional loading of proxy types from the given assembly (we dont want always to generate on small devices, Silverlight...)
// Note: Collection/Dictionary types are not saved in the assembly
var interfaceToGeneratedMapping = generationService.GenerateProxyTypes(completeTypesList, Properties.Settings.Default.SaveGeneratedAssemblyToDisk, Properties.Settings.Default.GeneratedAssemblyFileName);
proxyCreatorService = new ProxyCreatorService(completeTypesList, interfaceToTypeIdMapping, interfaceToGeneratedMapping);
snapshotsService = new SnapshotsService(provider);
#region Parent map provider setup
if (Properties.Settings.Default.ParentMappingFileStorageUsed)
{
// Usage of file for caching parent information
var indexedFile = new IndexedFileStorage(new FileStream(this.parentMappingFileName, FileMode.Create), Properties.Settings.Default.ParentMappingFileBlockSize, false);
indexedFile.Serializer = this.objectSerializationService;
disposables.Add(indexedFile);
var parentProviderStorage = new CachedWriteNodeProviderUnsafe <Guid, object, EdgeData>(
new DirectNodeProviderUnsafe <Guid, object, EdgeData>(indexedFile, true),
new LimitedDirectNodeProviderUnsafe <Guid, object, EdgeData>(
new LimitedMemoryStorageUnsafe <Guid, object>(Properties.Settings.Default.ParentMappingMemoryMinimumCount, Properties.Settings.Default.ParentMappingMemoryMaximumCount), false)
);
disposables.Add(parentProviderStorage);
mutableParentProvider = new ParentMapProvider(parentProviderStorage, provider, null, true);
}
else
{
// Default parent information is stored in memory and has only the last snapshot available
mutableParentProvider = new ParentMapProvider(new DirectNodeProviderUnsafe <Guid, object, EdgeData>(new MemoryStorageUnsafe <Guid, object>(), false), provider, null, true);
}
#endregion
#region Merge rule provider setup
IMergeRuleProvider mergeRuleProvider = null;
if (SnapshotIsolationEnabled)
{
if (Properties.Settings.Default.ConcurrencyAutoOverrideResolution)
{
mergeRuleProvider = new AutoOverrideMergeRuleProvider();
}
else
{
if (Properties.Settings.Default.ConcurrencyAttributesEnabled)
{
mergeRuleProvider = new AttributeBasedMergeRuleProvider(typesService);
}
else
{
throw new ArgumentException("No selected provider for merge rules in snapshot isolation conflicts. Check configuration of merge rule providers.");
}
}
}
#endregion
#region Setup change set provider
// TODO (nsabo) Provide option for change set safety when context goes offline, OfflineWorkspaces should enable commits when context is back online
if (Properties.Settings.Default.ChangeSetHistoryFileStorageUsed)
{
var indexedFile = new IndexedFileStorage(new FileStream(Properties.Settings.Default.ChangeSetHistoryFileStorageFileName, FileMode.Create), 256, false);
indexedFile.Serializer = this.objectSerializationService;
disposables.Add(indexedFile);
var changeSetProviderStorage = new CachedWriteNodeProviderUnsafe <Guid, object, EdgeData>(
new DirectNodeProviderUnsafe <Guid, object, EdgeData>(indexedFile, true),
new LimitedDirectNodeProviderUnsafe <Guid, object, EdgeData>(
new LimitedMemoryStorageUnsafe <Guid, object>(Properties.Settings.Default.ChangeSetHistoryWriteCacheMinimumCount, Properties.Settings.Default.ChangeSetHistoryWriteCacheMaximumCount), false)
);
disposables.Add(changeSetProviderStorage);
changeSetProvider = new TrackingChangeSetProvider(changeSetProviderStorage);
}
else
{
changeSetProvider = new TrackingChangeSetProvider(new DirectNodeProviderUnsafe <Guid, object, EdgeData>(new MemoryStorageUnsafe <Guid, object>(), false));
}
#endregion
var immutableParentProvider = new ParentMapProvider(new DirectNodeProviderUnsafe <Guid, object, EdgeData>(new MemoryStorageUnsafe <Guid, object>(), false), provider, null, false);
collectedNodesProvider = new CollectedNodesProvider(new DirectNodeProviderUnsafe <Guid, object, EdgeData>(new MemoryStorageUnsafe <Guid, object>(), false), provider);
commitDataService = new CommitDataService(provider, typesService, snapshotsService, mutableParentProvider, immutableParentProvider, changeSetProvider, new NodeMergeExecutor(mergeRuleProvider, typesService), collectedNodesProvider);
workspaceExclusiveLockProvider = new WorkspaceExclusiveLockProvider();
disposables.Add(workspaceExclusiveLockProvider);
trackingWorkspaceStateProvider = new TrackingWorkspaceStateProvider(workspaceExclusiveLockProvider);
objectInstancesService = new ObjectInstancesService(provider, typesService);
subscriptionManagerService = new SubscriptionManagerService(typesService, objectInstancesService);
workspaceFacade = new WorkspaceFacade(commitDataService, trackingWorkspaceStateProvider, subscriptionManagerService, snapshotsService, workspaceExclusiveLockProvider);
backupService = new BackupService();
bool firstRun = snapshotsService.InitializeSnapshots();
if (firstRun)
{
InitializeDefaultSnapshot();
}
else
{
OptimizeData();
}
StaticProxyFacade.Initialize(typesService);
}
