public virtual NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo GetMetaRepresentation (object o, NeoDatis.Odb.Core.Layers.Layer2.Meta.ClassInfo ci, bool recursive , System.Collections.Generic.IDictionary <object, NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo > alreadyReadObjects, NeoDatis.Odb.Core.Layers.Layer1.Introspector.IIntrospectionCallback callback) { return(GetObjectInfo(o, ci, recursive, alreadyReadObjects, callback)); }
private NeoDatis.Odb.Core.Layers.Layer2.Meta.CollectionObjectInfo IntrospectCollection (System.Collections.ICollection collection, bool introspect, System.Collections.Generic.IDictionary <object, NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo> alreadyReadObjects , NeoDatis.Odb.Core.Layers.Layer2.Meta.ODBType type, NeoDatis.Odb.Core.Layers.Layer1.Introspector.IIntrospectionCallback callback) { if (collection == null) { return(new NeoDatis.Odb.Core.Layers.Layer2.Meta.CollectionObjectInfo()); } // A collection that contain all meta representations of the collection // objects System.Collections.Generic.ICollection <NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo > collectionCopy = new System.Collections.Generic.List <NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo >(collection.Count); // A collection to keep references all all non native objects of the // collection // This will be used later to get all non native objects contained in an // object System.Collections.Generic.ICollection <NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo > nonNativesObjects = new System.Collections.Generic.List <NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo >(collection.Count); NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo aoi = null; System.Collections.IEnumerator iterator = collection.GetEnumerator(); while (iterator.MoveNext()) { object o = iterator.Current; NeoDatis.Odb.Core.Layers.Layer2.Meta.ClassInfo ci = null; // Null objects are not inserted in list if (o != null) { ci = GetClassInfo(OdbClassUtil.GetFullName(o.GetType())); aoi = GetObjectInfo(o, ci, introspect, alreadyReadObjects, callback); collectionCopy.Add(aoi); if (aoi.IsNonNativeObject()) { // o is not null, call the callback with it //callback.objectFound(o); // This is a non native object nonNativesObjects.Add((NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo)aoi ); } } } NeoDatis.Odb.Core.Layers.Layer2.Meta.CollectionObjectInfo coi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.CollectionObjectInfo (collectionCopy, nonNativesObjects); string realCollectionClassName = OdbClassUtil.GetFullName(collection.GetType()); if (realCollectionClassName.IndexOf("$") != -1) { coi.SetRealCollectionClassName(type.GetDefaultInstanciationClass().FullName); } else { coi.SetRealCollectionClassName(realCollectionClassName); } return(coi); }
protected virtual void Init() { CheckRuntimeCompatibility(); isClosed = false; isLocal = baseIdentification.IsLocal(); // The check if it is a new Database must be executed before object // writer initialization. Because Object Writer Init // Creates the file so the check (which is based on the file existence // would always return false*/ bool isNewDatabase = IsNewDatabase(); commitListeners = new OdbArrayList <ICommitListener>(); classIntrospector = provider.GetClassIntrospector(); ISession session = BuildDefaultSession(); // Object Writer must be created before object Reader objectWriter = BuildObjectWriter(); // Object writer is a two Phase init object objectWriter.Init2(); objectReader = BuildObjectReader(); AddSession(session, false); // If the file does not exist, then a default header must be created if (isNewDatabase) { objectWriter.CreateEmptyDatabaseHeader(OdbTime.GetCurrentTimeInMs(), baseIdentification.GetUserName(), baseIdentification.GetPassword()); } else { try { GetObjectReader().ReadDatabaseHeader(baseIdentification.GetUserName(), baseIdentification.GetPassword()); } catch (ODBAuthenticationRuntimeException e) { Close(); throw; } } objectWriter.AfterInit(); objectIntrospector = BuildObjectIntrospector(); this.triggerManager = BuildTriggerManager(); // This forces the initialization of the meta model MetaModel metaModel = GetMetaModel(); if (OdbConfiguration.CheckModelCompatibility()) { CheckMetaModelCompatibility(classIntrospector.Instrospect(metaModel.GetAllClasses())); } // logically locks access to the file (only for this Virtual machine) FileMutex.GetInstance().OpenFile(GetStorageDeviceName()); // Updates the Transaction Id in the file objectWriter.WriteLastTransactionId(GetCurrentTransactionId()); this.objectWriter.SetTriggerManager(this.triggerManager); this.introspectionCallbackForInsert = new DefaultInstrumentationCallbackForStore(this, triggerManager, false); this.introspectionCallbackForUpdate = new DefaultInstrumentationCallbackForStore(this, triggerManager, true); }
protected virtual NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo GetNativeObjectInfoInternal (NeoDatis.Odb.Core.Layers.Layer2.Meta.ODBType type, object o, bool recursive , System.Collections.Generic.IDictionary <object, NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo > alreadyReadObjects, NeoDatis.Odb.Core.Layers.Layer1.Introspector.IIntrospectionCallback callback) { NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo aoi = null; if (type.IsAtomicNative()) { if (o == null) { aoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.NullNativeObjectInfo(type.GetId()); } else { aoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.AtomicNativeObjectInfo(o, type .GetId()); } } else { if (type.IsCollection()) { aoi = IntrospectCollection((System.Collections.ICollection)o, recursive, alreadyReadObjects , type, callback); } else { if (type.IsArray()) { if (o == null) { aoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.ArrayObjectInfo(null); } else { // Gets the type of the elements of the array string realArrayClassName = OdbClassUtil.GetFullName(o.GetType().GetElementType()); NeoDatis.Odb.Core.Layers.Layer2.Meta.ArrayObjectInfo aroi = null; if (recursive) { aroi = IntrospectArray(o, recursive, alreadyReadObjects, type, callback); } else { aroi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.ArrayObjectInfo((object[])o ); } aroi.SetRealArrayComponentClassName(realArrayClassName); aoi = aroi; } } else { if (type.IsMap()) { if (o == null) { aoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.MapObjectInfo(null, type, type.GetDefaultInstanciationClass ().FullName); } else { MapObjectInfo moi = null; string realMapClassName = OdbClassUtil.GetFullName(o.GetType()); bool isGeneric = o.GetType().IsGenericType; if (isGeneric) { moi = new MapObjectInfo(IntrospectGenericMap((System.Collections.Generic.IDictionary <object, object>)o, recursive, alreadyReadObjects, callback), type, realMapClassName); } else { moi = new MapObjectInfo(IntrospectNonGenericMap((System.Collections.IDictionary)o, recursive, alreadyReadObjects, callback), type, realMapClassName); } if (realMapClassName.IndexOf("$") != -1) { moi.SetRealMapClassName(OdbClassUtil.GetFullName(type.GetDefaultInstanciationClass())); } aoi = moi; } } else { if (type.IsEnum()) { System.Enum enumObject = (System.Enum)o; if (enumObject == null) { aoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.NullNativeObjectInfo(type.GetSize( )); } else { Type t = enumObject.GetType(); string enumClassName = enumObject == null ? null : OdbClassUtil.GetFullName(enumObject.GetType()); // Here we must check if the enum is already in the meta model. Enum must be stored in the meta // model to optimize its storing as we need to keep track of the enum class // for each enum stored. So instead of storing the enum class name, we can store enum class id, a long // instead of the full enum class name string NeoDatis.Odb.Core.Layers.Layer2.Meta.ClassInfo ci = GetClassInfo(enumClassName); string enumValue = enumObject == null ? null : enumObject.ToString(); aoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.EnumNativeObjectInfo(ci, enumValue ); } } } } } } return(aoi); }
private NeoDatis.Odb.Core.Layers.Layer2.Meta.ArrayObjectInfo IntrospectArray(object array, bool introspect, System.Collections.Generic.IDictionary <object, NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo > alreadyReadObjects, NeoDatis.Odb.Core.Layers.Layer2.Meta.ODBType valueType, NeoDatis.Odb.Core.Layers.Layer1.Introspector.IIntrospectionCallback callback) { int length = NeoDatis.Tool.Wrappers.OdbReflection.GetArrayLength(array); System.Type elementType = array.GetType().GetElementType(); NeoDatis.Odb.Core.Layers.Layer2.Meta.ODBType type = NeoDatis.Odb.Core.Layers.Layer2.Meta.ODBType .GetFromClass(elementType); if (type.IsAtomicNative()) { return(IntropectAtomicNativeArray(array, type)); } if (!introspect) { return(new NeoDatis.Odb.Core.Layers.Layer2.Meta.ArrayObjectInfo((object[])array)); } object[] arrayCopy = new object[length]; for (int i = 0; i < length; i++) { object o = NeoDatis.Tool.Wrappers.OdbReflection.GetArrayElement(array, i); NeoDatis.Odb.Core.Layers.Layer2.Meta.ClassInfo ci = null; if (o != null) { ci = GetClassInfo(OdbClassUtil.GetFullName(o.GetType())); NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo aoi = GetObjectInfo(o, ci , introspect, alreadyReadObjects, callback); arrayCopy[i] = aoi; } else { arrayCopy[i] = new NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeNullObjectInfo(); } } NeoDatis.Odb.Core.Layers.Layer2.Meta.ArrayObjectInfo arrayOfAoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.ArrayObjectInfo (arrayCopy, valueType, type.GetId()); return(arrayOfAoi); }
/// <summary> /// Build a meta representation of an object /// <pre> /// warning: When an object has two fields with the same name (a private field with the same name in a parent class, the deeper field (of the parent) is ignored!) /// </pre> /// </summary> /// <param name="o"></param> /// <param name="ci"></param> /// <param name="recursive"></param> /// <returns>The ObjectInfo</returns> protected virtual NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo GetObjectInfoInternal (NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo nnoi, object o, NeoDatis.Odb.Core.Layers.Layer2.Meta.ClassInfo ci, bool recursive, System.Collections.Generic.IDictionary <object, NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo > alreadyReadObjects, NeoDatis.Odb.Core.Layers.Layer1.Introspector.IIntrospectionCallback callback) { object value = null; if (o == null) { return(NeoDatis.Odb.Core.Layers.Layer2.Meta.NullNativeObjectInfo.GetInstance()); } System.Type clazz = o.GetType(); NeoDatis.Odb.Core.Layers.Layer2.Meta.ODBType type = NeoDatis.Odb.Core.Layers.Layer2.Meta.ODBType .GetFromClass(clazz); string className = OdbClassUtil.GetFullName(clazz); if (type.IsNative()) { return(GetNativeObjectInfoInternal(type, o, recursive, alreadyReadObjects, callback)); } // sometimes the clazz.getName() may not match the ci.getClassName() // It happens when the attribute is an interface or superclass of the // real attribute class // In this case, ci must be updated to the real class info if (ci != null && !clazz.FullName.Equals(ci.GetFullClassName())) { ci = GetClassInfo(className); nnoi = null; } NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo mainAoi = (NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo )nnoi; bool isRootObject = false; if (alreadyReadObjects == null) { alreadyReadObjects = new NeoDatis.Tool.Wrappers.Map.OdbHashMap <object, NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeObjectInfo >(); isRootObject = true; } if (o != null) { NonNativeObjectInfo cachedNnoi = null; alreadyReadObjects.TryGetValue(o, out cachedNnoi); if (cachedNnoi != null) { ObjectReference or = new ObjectReference(cachedNnoi); return(or); } if (callback != null) { callback.ObjectFound(o); } } if (mainAoi == null) { mainAoi = BuildNnoi(o, ci, null, null, null, alreadyReadObjects); } alreadyReadObjects[o] = mainAoi; NeoDatis.Tool.Wrappers.List.IOdbList <System.Reflection.FieldInfo> fields = classIntrospector.GetAllFields(className); NeoDatis.Odb.Core.Layers.Layer2.Meta.AbstractObjectInfo aoi = null; int attributeId = -1; // For all fields for (int i = 0; i < fields.Count; i++) { System.Reflection.FieldInfo field = fields[i]; try { value = field.GetValue(o); attributeId = ci.GetAttributeId(field.Name); if (attributeId == -1) { throw new ODBRuntimeException(NeoDatisError.ObjectIntrospectorNoFieldWithName.AddParameter(ci.GetFullClassName()).AddParameter(field.Name)); } ODBType valueType = null; if (value == null) { // If value is null, take the type from the field type // declared in the class valueType = ODBType.GetFromClass(field.FieldType); } else { // Else take the real attribute type! valueType = ODBType.GetFromClass(value.GetType()); } // for native fields if (valueType.IsNative()) { aoi = GetNativeObjectInfoInternal(valueType, value, recursive, alreadyReadObjects, callback); mainAoi.SetAttributeValue(attributeId, aoi); } else { //callback.objectFound(value); // Non Native Objects if (value == null) { ClassInfo clai = GetClassInfo(OdbClassUtil.GetFullName(field.GetType())); aoi = new NeoDatis.Odb.Core.Layers.Layer2.Meta.NonNativeNullObjectInfo(clai); mainAoi.SetAttributeValue(attributeId, aoi); } else { ClassInfo clai = GetClassInfo(OdbClassUtil.GetFullName(value.GetType())); if (recursive) { aoi = GetObjectInfoInternal(null, value, clai, recursive, alreadyReadObjects, callback ); mainAoi.SetAttributeValue(attributeId, aoi); } else { // When it is not recursive, simply add the object // values.add(value); throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.InternalError .AddParameter("Should not enter here - ObjectIntrospector - 'simply add the object'" )); } } } } catch (System.ArgumentException e) { throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.InternalError .AddParameter("in getObjectInfoInternal"), e); } catch (System.MemberAccessException e) { throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.InternalError .AddParameter("getObjectInfoInternal"), e); } } if (isRootObject) { alreadyReadObjects.Clear(); alreadyReadObjects = null; } return(mainAoi); }
protected virtual void Init() { CheckRuntimeCompatibility(); isClosed = false; isLocal = baseIdentification.IsLocal(); // The check if it is a new Database must be executed before object // writer initialization. Because Object Writer Init // Creates the file so the check (which is based on the file existence // would always return false*/ bool isNewDatabase = IsNewDatabase(); commitListeners = new OdbArrayList<ICommitListener>(); classIntrospector = provider.GetClassIntrospector(); ISession session = BuildDefaultSession(); // Object Writer must be created before object Reader objectWriter = BuildObjectWriter(); // Object writer is a two Phase init object objectWriter.Init2(); objectReader = BuildObjectReader(); AddSession(session, false); // If the file does not exist, then a default header must be created if (isNewDatabase) { objectWriter.CreateEmptyDatabaseHeader(OdbTime.GetCurrentTimeInMs(), baseIdentification.GetUserName(), baseIdentification.GetPassword()); } else { try { GetObjectReader().ReadDatabaseHeader(baseIdentification.GetUserName(), baseIdentification.GetPassword()); } catch (ODBAuthenticationRuntimeException e) { Close(); throw; } } objectWriter.AfterInit(); objectIntrospector = BuildObjectIntrospector(); this.triggerManager = BuildTriggerManager(); // This forces the initialization of the meta model MetaModel metaModel = GetMetaModel(); if (OdbConfiguration.CheckModelCompatibility()) { CheckMetaModelCompatibility(classIntrospector.Instrospect(metaModel.GetAllClasses())); } // logically locks access to the file (only for this Virtual machine) FileMutex.GetInstance().OpenFile(GetStorageDeviceName()); // Updates the Transaction Id in the file objectWriter.WriteLastTransactionId(GetCurrentTransactionId()); this.objectWriter.SetTriggerManager(this.triggerManager); this.introspectionCallbackForInsert = new DefaultInstrumentationCallbackForStore(this, triggerManager, false); this.introspectionCallbackForUpdate = new DefaultInstrumentationCallbackForStore(this, triggerManager, true); }