예제 #1
0
        public Exceptional<ResultType> RebuildIndex(String myIndexName, String myIndexEdition, GraphDBType myDBTypeStream, IndexSetStrategy myIndexSetStrategy)
        {
            var objectLocation = new ObjectLocation(myDBTypeStream.ObjectLocation, DBConstants.DBObjectsLocation);
            IEnumerable<String> allDBOLocations = null;

            try
            {
                allDBOLocations = _DBContext.DBObjectManager.GetAllStreamsRecursive(objectLocation, DBConstants.DBOBJECTSTREAM);
            }
            catch (Exception e)
            {
                return new Exceptional<ResultType>(new Error_RebuildIndexFailed(myIndexName, myIndexEdition, e.Message));

            }

            try
            {

                var index = myDBTypeStream.GetAttributeIndex(myIndexName, myIndexEdition);

                index.ClearAndRemoveFromDisc(this);

                    foreach (var loc in allDBOLocations)
                    {
                        var dbo = _DBContext.DBObjectManager.LoadDBObject(new ObjectLocation(myDBTypeStream.ObjectLocation, DBConstants.DBObjectsLocation, _DBContext.DBObjectManager.GetDBObjectStreamShard(myDBTypeStream, new ObjectUUID(loc)), loc));

                        if (dbo.Failed())
                        {
                            return new Exceptional<ResultType>(dbo);
                        }

                        if (!dbo.Value.ObjectLocation.Contains(loc))
                        {
                            //NLOG: temporarily commented
                            ////_Logger.Error("Could not found the correct DBObject for Location " + loc + " the ObjectUUID is now " + dbo.Value.ObjectUUID.ToString());
                        }
                        else
                        {
                            if (dbo.Value.HasAtLeastOneAttribute(index.IndexKeyDefinition.IndexKeyAttributeUUIDs, myDBTypeStream, null))
                            {
                                var insertResult = index.Insert(dbo.Value, myIndexSetStrategy, myDBTypeStream, _DBContext);
                                if (!insertResult.Success())
                                {
                                    return new Exceptional<ResultType>(insertResult);
                                }
                            }
                        }

                }
            }
            catch (GraphDBException pe)
            {
                var _Exceptional = new Exceptional<ResultType>();
                foreach (var _ex in pe.GraphDBErrors)
                    _Exceptional.PushIError(_ex);
                return _Exceptional;
            }
            catch (GraphFSException_IndexKeyAlreadyExist)
            {
                //NLOG: temporarily commented
                ////_Logger.ErrorException("GraphFSException_IndexKeyAlreadyExist", ikae);
                return new Exceptional<ResultType>(new Error_UniqueConstrainViolation(myDBTypeStream.Name, myIndexName));
            }
            catch
            {
                return new Exceptional<ResultType>(new Error_IndexDoesNotExist(myIndexName, myIndexEdition));
            }

            return new Exceptional<ResultType>(ResultType.Successful);
        }
예제 #2
0
        /// <summary>
        /// Loads an index from a corresponding type.
        /// </summary>
        /// <param name="myAttribute">The interesting attribute.</param>
        /// <param name="dbContext">The TypeManager of the database.</param>
        /// <param name="myType">The type of the interesing attribute.</param>
        /// <returns></returns>
        protected IEnumerable<Tuple<GraphDBType, AAttributeIndex>> GetIndex(TypeAttribute myAttribute, DBContext dbContext, GraphDBType myType, Object myExtraordinary)
        {
            #region INPUT EXCEPTIONS

            if (myType == null || myAttribute == null || dbContext == null)
            {
                throw new ArgumentNullException();
            }

            #endregion

            if (myExtraordinary == null)
            {
                #region eventual speedup

                //direct match of idx
                if (myType.HasAttributeIndices(myAttribute.UUID))
                {
                    yield return new Tuple<GraphDBType, AAttributeIndex>(myType, myType.GetAttributeIndex(dbContext, new IndexKeyDefinition(myAttribute.UUID), null).Value);
                }
                else
                {
                    //no direct match... lets try the subtypes
                    foreach (var aSubType in dbContext.DBTypeManager.GetAllSubtypes(myType, true))
                    {
                        if (aSubType.HasAttributeIndices(myAttribute.UUID))
                        {
                            yield return new Tuple<GraphDBType, AAttributeIndex>(aSubType, aSubType.GetAttributeIndex(dbContext, new IndexKeyDefinition(myAttribute.UUID), null).Value);
                        }
                        else
                        {
                            yield return new Tuple<GraphDBType, AAttributeIndex>(aSubType, aSubType.GetUUIDIndex(dbContext));
                        }
                    }
                }

                #endregion
            }
            else
            {
                var checkResult = myType.HasAttributeIndices(myExtraordinary as IDChainDefinition);
                if (checkResult.Failed())
                {
                    throw new GraphDBException(checkResult.IErrors);
                }
                if (checkResult.Value)
                {
                    yield return new Tuple<GraphDBType, AAttributeIndex>(myType, myType.GetAttributeIndex(dbContext, myExtraordinary as IDChainDefinition).Value);
                }
                else
                {
                    foreach (var aSubType in dbContext.DBTypeManager.GetAllSubtypes(myType, true))
                    {
                        yield return new Tuple<GraphDBType, AAttributeIndex>(aSubType, aSubType.GetUUIDIndex(dbContext));
                    }
                }
            }

            yield break;
        }
예제 #3
0
        public Exceptional<ResultType> RebuildIndex(String myIndexName, String myIndexEdition, GraphDBType myDBTypeStream, IndexSetStrategy myIndexSetStrategy)
        {
            var objectLocation = new ObjectLocation(myDBTypeStream.ObjectLocation, DBConstants.DBObjectsLocation);
            var allDBOLocations = _IGraphFSSession.GetFilteredDirectoryListing(objectLocation, null, null, null, new List<String>(new String[] { DBConstants.DBOBJECTSTREAM }), null, null, null, null, null, null);

            if (allDBOLocations.Failed() && allDBOLocations.IErrors.First().GetType() != typeof(GraphFSError_ObjectLocatorNotFound))
                return new Exceptional<ResultType>(allDBOLocations);

            try
            {

                var index = myDBTypeStream.GetAttributeIndex(myIndexName, myIndexEdition);

                index.ClearAndRemoveFromDisc(this);

                if (allDBOLocations.Value != null)
                {
                    foreach (var loc in allDBOLocations.Value)
                    {
                        var dbo = _DBContext.DBObjectManager.LoadDBObject(new ObjectLocation(myDBTypeStream.ObjectLocation, DBConstants.DBObjectsLocation, loc));

                        if (dbo.Failed())
                        {
                            return new Exceptional<ResultType>(dbo);
                        }

                        if (!dbo.Value.ObjectLocation.Contains(loc))
                        {
                            //NLOG: temporarily commented
                            ////_Logger.Error("Could not found the correct DBObject for Location " + loc + " the ObjectUUID is now " + dbo.Value.ObjectUUID.ToString());
                        }
                        else
                        {
                            if (dbo.Value.HasAtLeastOneAttribute(index.IndexKeyDefinition.IndexKeyAttributeUUIDs, myDBTypeStream, null))
                            {
                                var insertResult = index.Insert(dbo.Value, myIndexSetStrategy, myDBTypeStream, _DBContext);
                                if (!insertResult.Success())
                                {
                                    return new Exceptional<ResultType>(insertResult);
                                }
                            }
                        }
                    }
                }
            }
            catch (GraphDBException pe)
            {
                var _Exceptional = new Exceptional<ResultType>();
                foreach (var _ex in pe.GraphDBErrors)
                    _Exceptional.PushIError(_ex);
                return _Exceptional;
            }
            catch (GraphFSException_IndexKeyAlreadyExist)
            {
                //NLOG: temporarily commented
                ////_Logger.ErrorException("GraphFSException_IndexKeyAlreadyExist", ikae);
                return new Exceptional<ResultType>(new Error_UniqueConstrainViolation(myDBTypeStream.Name, myIndexName));
            }
            catch
            {
                return new Exceptional<ResultType>(new Error_IndexDoesNotExist(myIndexName, myIndexEdition));
            }

            return new Exceptional<ResultType>(ResultType.Successful);
        }