/// <summary> /// Persists all pending transactions in <see cref="Oms.PendingTransactions" /> to the backing store. /// </summary> /// <param name="oms">Oms.</param> /// <param name="path">Path.</param> public static void Save(this Oms oms, string path) { string filename = System.IO.Path.Combine(new string[] { path, String.Format("{0}.mcx", DateTime.Now.ToString("s").Replace(':', '-')) }); string parentDirectory = System.IO.Path.GetDirectoryName(filename); if (!System.IO.Directory.Exists(parentDirectory)) { System.IO.Directory.CreateDirectory(parentDirectory); } MochaSnapshotObjectModel mcx = new MochaSnapshotObjectModel(); foreach (Transaction transaction in oms.PendingTransactions) { string tenantName = oms.GetTenantName(transaction.Tenant); MochaSnapshotTransaction snapshotTransaction = new MochaSnapshotTransaction(); snapshotTransaction.TenantName = tenantName; foreach (TransactionOperation op in transaction.Operations) { if (op is AssignAttributeTransactionOperation aa) { MochaSnapshotAssignAttributeTransactionOperation ssaa = new MochaSnapshotAssignAttributeTransactionOperation(); ssaa.SourceInstanceID = oms.GetInstanceID(aa.SourceInstance); ssaa.AttributeInstanceID = oms.GetInstanceID(aa.AttributeInstance); ssaa.EffectiveDate = aa.EffectiveDate; ssaa.Value = aa.Value; snapshotTransaction.Operations.Add(ssaa); } else if (op is AssociateRelationshipTransactionOperation ar) { MochaSnapshotAssociateRelationshipTransactionOperation ssar = new MochaSnapshotAssociateRelationshipTransactionOperation(); ssar.SourceInstanceID = oms.GetInstanceID(ar.SourceInstance); ssar.RelationshipInstanceID = oms.GetInstanceID(ar.RelationshipInstance); ssar.EffectiveDate = ar.EffectiveDate; for (int i = 0; i < ar.TargetInstances.Length; i++) { ssar.TargetInstanceIDs.Add(oms.GetInstanceID(ar.TargetInstances[i])); } snapshotTransaction.Operations.Add(ssar); } else if (op is CreateInstanceTransactionOperation ci) { MochaSnapshotCreateInstanceTransactionOperation ssci = new MochaSnapshotCreateInstanceTransactionOperation(); ssci.GlobalIdentifier = ci.GlobalIdentifier; ssci.ClassGlobalIdentifier = ci.ClassGlobalIdentifier; snapshotTransaction.Operations.Add(ssci); } } mcx.Transactions.Add(snapshotTransaction); } Document.Save(mcx, mcldf, new FileAccessor(filename, true, true)); oms.PendingTransactions.Clear(); }
protected override void AfterLoadInternal(Stack <ObjectModel> objectModels) { base.AfterLoadInternal(objectModels); if (objectModels.Count < 2) { throw new ObjectModelNotSupportedException("must have a FileSystemObjectModel and a MochaClassLibraryObjectModel in the stack"); } FileSystemObjectModel fsom = (objectModels.Pop() as FileSystemObjectModel); if (fsom == null) { throw new ObjectModelNotSupportedException(); } ObjectModel om = objectModels.Pop(); MochaSnapshotObjectModel mcx = (om as MochaSnapshotObjectModel); MochaClassLibraryObjectModel mcl = (om as MochaClassLibraryObjectModel); if (mcl == null && mcx == null) { throw new ObjectModelNotSupportedException(); } List <Guid> _instanceGuids = new List <Guid>(); List <string> _stringTable = new List <string>(); LIBRARY_INFO[] library_info = null; // COMMON TABLES #region Guid Table { File fGlobalIdentifiers = fsom.FindFile("GlobalIdentifiers"); using (MemoryAccessor ma = new MemoryAccessor(fGlobalIdentifiers.GetData())) { int instanceCount = ma.Reader.ReadInt32(); for (int i = 0; i < instanceCount; i++) { _instanceGuids.Add(ma.Reader.ReadGuid()); } } } #endregion #region String Table { File f = fsom.FindFile("StringTable"); using (MemoryAccessor ma = new MemoryAccessor(f.GetData())) { int stringTableCount = ma.Reader.ReadInt32(); for (int i = 0; i < stringTableCount; i++) { string value = ma.Reader.ReadNullTerminatedString(); _stringTable.Add(value); } } } #endregion // MCL-SPECIFIC #region Libraries File fLibraries = fsom.FindFile("Libraries"); if (mcl != null && fLibraries != null) { using (MemoryAccessor ma = new MemoryAccessor(fLibraries.GetData())) { int libraryCount = ma.Reader.ReadInt32(); library_info = new LIBRARY_INFO[libraryCount]; for (int i = 0; i < libraryCount; i++) { MochaLibrary library = new MochaLibrary(); library.ID = ma.Reader.ReadGuid(); library_info[i].instanceCount = ma.Reader.ReadInt32(); // library_info[i].attributeValueCount = ma.Reader.ReadInt32(); library_info[i].relationshipCount = ma.Reader.ReadInt32(); mcl.Libraries.Add(library); } } } else { Console.Error.WriteLine("mocha: mcl: error: ignoring 'Libraries' section found in non-mcl file"); } #endregion INSTANCE_INFO[] instance_info = null; #region Instances File fInstances = fsom.FindFile("Instances"); if (mcl != null && fInstances != null) { using (MemoryAccessor ma = new MemoryAccessor(fInstances.GetData())) { for (int i = 0; i < mcl.Libraries.Count; i++) { int instanceCount = ma.Reader.ReadInt32(); instance_info = new INSTANCE_INFO[instanceCount]; for (int j = 0; j < instanceCount; j++) { instance_info[j].instanceIndex = ma.Reader.ReadInt32(); instance_info[j].attributeValueCount = ma.Reader.ReadInt32(); MochaInstanceFlags flags = (MochaInstanceFlags)ma.Reader.ReadInt32(); int?index = null; if ((flags & MochaInstanceFlags.HasIndex) == MochaInstanceFlags.HasIndex) { index = ma.Reader.ReadInt32(); } MochaInstance inst = new MochaInstance(); inst.ID = _instanceGuids[instance_info[j].instanceIndex]; inst.Index = index; mcl.Libraries[i].Instances.Add(inst); } } } } else { Console.Error.WriteLine("mocha: mcl: error: ignoring 'Instances' section found in non-mcl file"); } #endregion #region Attributes File fAttributes = fsom.FindFile("Attributes"); if (mcl != null && fAttributes != null) { using (MemoryAccessor ma = new MemoryAccessor(fAttributes.GetData())) { for (int i = 0; i < mcl.Libraries.Count; i++) { for (int j = 0; j < mcl.Libraries[i].Instances.Count; j++) { for (int k = 0; k < instance_info[j].attributeValueCount; k++) { int attributeInstanceIndex = ma.Reader.ReadInt32(); MochaAttributeValue val = new MochaAttributeValue(); val.AttributeInstanceID = _instanceGuids[attributeInstanceIndex]; MochaAttributeType attributeType = (MochaAttributeType)ma.Reader.ReadInt32(); switch (attributeType) { case MochaAttributeType.None: break; case MochaAttributeType.Text: { int stringTableIndex = ma.Reader.ReadInt32(); string value = _stringTable[stringTableIndex]; val.Value = value; break; } case MochaAttributeType.Boolean: { bool value = ma.Reader.ReadBoolean(); val.Value = value; break; } case MochaAttributeType.Date: { DateTime value = ma.Reader.ReadDateTime(); val.Value = value; break; } case MochaAttributeType.Unknown: { break; } } mcl.Libraries[i].Instances[j].AttributeValues.Add(val); } } } } } else { Console.Error.WriteLine("mocha: mcl: error: ignoring 'Attributes' section found in non-mcl file"); } #endregion #region Relationships File fRelationships = fsom.FindFile("Relationships"); if (mcl != null && fRelationships != null) { using (MemoryAccessor ma = new MemoryAccessor(fRelationships.GetData())) { for (int i = 0; i < mcl.Libraries.Count; i++) { for (int j = 0; j < library_info[i].relationshipCount; j++) { int relationshipIndex = ma.Reader.ReadInt32(); int sourceInstanceIndex = ma.Reader.ReadInt32(); MochaRelationship rel = new MochaRelationship(); rel.RelationshipInstanceID = _instanceGuids[relationshipIndex]; rel.SourceInstanceID = _instanceGuids[sourceInstanceIndex]; int targetInstanceCount = ma.Reader.ReadInt32(); for (int k = 0; k < targetInstanceCount; k++) { int instanceIndex = ma.Reader.ReadInt32(); rel.DestinationInstanceIDs.Add(_instanceGuids[instanceIndex]); } mcl.Libraries[i].Relationships.Add(rel); } } } } else { Console.Error.WriteLine("mocha: mcl: error: ignoring 'Relationships' section found in non-mcl file"); } #endregion #region Tenants File fTenants = fsom.FindFile("Tenants"); if (mcl != null && fTenants != null) { using (MemoryAccessor ma = new MemoryAccessor(fTenants.GetData())) { int tenantCount = ma.Reader.ReadInt32(); for (int i = 0; i < tenantCount; i++) { int instanceIndex = ma.Reader.ReadInt32(); Guid instanceGuid = _instanceGuids[instanceIndex]; int tenantNameIndex = ma.Reader.ReadInt32(); string tenantName = _stringTable[tenantNameIndex]; MochaTenant tenant = new MochaTenant(); tenant.ID = instanceGuid; tenant.Name = tenantName; int libraryReferenceCount = ma.Reader.ReadInt32(); for (int j = 0; j < libraryReferenceCount; j++) { int libraryIndex = ma.Reader.ReadInt32(); Guid libraryID = _instanceGuids[libraryIndex]; tenant.LibraryReferences.Add(new MochaLibraryReference(libraryID)); } int instanceCount = ma.Reader.ReadInt32(); for (int j = 0; j < instanceCount; j++) { int instanceIndex2 = ma.Reader.ReadInt32(); MochaInstance inst = new MochaInstance(); inst.ID = _instanceGuids[instanceIndex2]; tenant.Instances.Add(inst); } int relationshipCount = ma.Reader.ReadInt32(); for (int j = 0; j < relationshipCount; j++) { int sourceInex = ma.Reader.ReadInt32(); Guid ssource = _instanceGuids[sourceInex]; int relationshipInex = ma.Reader.ReadInt32(); Guid relati = _instanceGuids[relationshipInex]; MochaRelationship rel = new MochaRelationship(); rel.SourceInstanceID = ssource; rel.RelationshipInstanceID = relati; int count = ma.Reader.ReadInt32(); for (int k = 0; k < count; k++) { int targetIndex = ma.Reader.ReadInt32(); Guid targ = _instanceGuids[targetIndex]; rel.DestinationInstanceIDs.Add(targ); } tenant.Relationships.Add(rel); } mcl.Tenants.Add(tenant); } ma.Close(); fTenants.SetData(ma.ToArray()); } } else { Console.Error.WriteLine("mocha: mcl: error: ignoring 'Tenants' section found in non-mcl file"); } #endregion #region Journal // journal is present in MCX / MCD (application, data files) // is an opcode based format // eg. 0x01 = create instance, 0x02 = delete instance // 0x04 = set attribute value, 0x05 = delete attribute value // 0x08 = create relationship, 0x09 = remove relationship File fJournal = fsom.FindFile("Journal"); if (mcx != null && fJournal != null) { using (MemoryAccessor ma = new MemoryAccessor(fJournal.GetData())) { MochaSnapshotTransaction currentTransaction = null; while (!ma.Reader.EndOfStream) { MochaOpcode opcode = (MochaOpcode)ma.Reader.ReadByte(); switch (opcode) { case MochaOpcode.BeginTransaction: { currentTransaction = new MochaSnapshotTransaction(); currentTransaction.TenantName = _stringTable[ma.Reader.ReadInt32()]; break; } case MochaOpcode.EndTransaction: { mcx.Transactions.Add(currentTransaction); currentTransaction = null; break; } case MochaOpcode.CreateInstance: { DateTime effectiveDate = ma.Reader.ReadDateTime(); int guidIndex = ma.Reader.ReadInt32(); int classGuidIndex = ma.Reader.ReadInt32(); MochaSnapshotCreateInstanceTransactionOperation op = new MochaSnapshotCreateInstanceTransactionOperation(); op.GlobalIdentifier = _instanceGuids[guidIndex]; op.ClassGlobalIdentifier = _instanceGuids[classGuidIndex]; op.EffectiveDate = effectiveDate; currentTransaction.Operations.Add(op); break; } case MochaOpcode.CreateRelationship: case MochaOpcode.RemoveRelationship: { DateTime effectiveDate = ma.Reader.ReadDateTime(); int sourceInstanceIndex = ma.Reader.ReadInt32(); int relationshipIndex = ma.Reader.ReadInt32(); int targetInstanceCount = ma.Reader.ReadInt32(); MochaSnapshotAssociateRelationshipTransactionOperation rel = new MochaSnapshotAssociateRelationshipTransactionOperation(); rel.RelationshipInstanceID = _instanceGuids[relationshipIndex]; rel.SourceInstanceID = _instanceGuids[sourceInstanceIndex]; rel.EffectiveDate = effectiveDate; for (int k = 0; k < targetInstanceCount; k++) { int instanceIndex = ma.Reader.ReadInt32(); rel.TargetInstanceIDs.Add(_instanceGuids[instanceIndex]); } if (opcode == MochaOpcode.RemoveRelationship) { rel.Remove = true; } currentTransaction.Operations.Add(rel); break; } case MochaOpcode.AssignAttribute: { DateTime effectiveDate = ma.Reader.ReadDateTime(); int instanceIndex = ma.Reader.ReadInt32(); Guid instanceID = _instanceGuids[instanceIndex]; int attributeIndex = ma.Reader.ReadInt32(); Guid attributeInstanceID = _instanceGuids[attributeIndex]; object value = ReadMochaValue(ma.Reader, _stringTable); MochaSnapshotAssignAttributeTransactionOperation mav = new MochaSnapshotAssignAttributeTransactionOperation(); mav.SourceInstanceID = instanceID; mav.AttributeInstanceID = attributeInstanceID; mav.EffectiveDate = effectiveDate; mav.Value = value; currentTransaction.Operations.Add(mav); break; } } } } } else { Console.Error.WriteLine("mocha: mcl: error: ignoring 'Journal' section found in non-mcx file"); } #endregion }