//public Estat.Nsi.DataRetriever.Model.DataRetrievalInfoSeries infos; /// <summary> /// Initializes a new instance of the <see cref="DelayedDataWriterEngine" /> class. /// </summary> /// <param name="dataWriterEngine">The data writer engine.</param> /// <param name="actions">The actions.</param> public DsplDelayedDataWriterEngine(IDsplDataWriterEngine dataWriterEngine, Queue<Action> actions) { if (dataWriterEngine == null) { throw new ArgumentNullException("DspldataWriterEngine"); } this._dataWriterEngine = dataWriterEngine; this._actions = actions ?? new Queue<Action>(); }
/// <summary> /// Retrieve data from a DDB and write it to the specified <paramref name="writer"/> This is the main public method of the DataRetriever class. It is called with a populated QueryBean (containing essentially an SDMX-ML Query) and a database Connection to a "Mapping Store" database. This method is responsible for: /// <list type="bullet"> /// <item> /// Retrieving the <see cref="MappingSetEntity"/> (the class containing the performed mappings), according to the provided Dataflow ID, from the "Mapping Store". Mapping Sets are defined on a Dataflow basis. Thus, this method checks the input QueryBean for the Dataflow that data are requested and fetches the appropriate /// <see cref="MappingSetEntity"/>. If no <see cref="MappingSetEntity"/> exists, an exception (<see cref="DataRetrieverException"/>) is thrown. /// </item> /// <item> /// Calling the method generating the appropriate SQL for the dissemination database. /// </item> /// <item> /// Calling the method that executes the generated SQL and uses the /// <paramref name="writer"/> /// to write the output. /// </item> /// </list> /// <note type="note"> /// The "Data Retriever" expects exactly one Dataflow clause under the DataWhere clause, exactly one /// DataFlowBean within the DataWhereBean (which in turn resides inside the incoming QueryBean). /// </note> /// </summary> /// <exception cref="DataRetrieverException"> /// See the /// <see cref="ErrorTypes"/> /// for more details /// </exception> /// <exception cref="System.ArgumentNullException"> /// <paramref name="query"/> /// is null /// -or- /// <paramref name="writer"/> /// is null /// </exception> /// <param name="query"> /// The query bean for which data will be requested /// </param> /// <param name="writer"> /// The <see cref="ISeriesWriter"/> (e.g. Compact, Generic) writer /// </param> /// <example> /// An example using this method in C# with <see cref="CompactWriter"/> /// <code source="ReUsingExamples\DataRetriever\ReUsingDataRetriever.cs" lang="cs"> /// </code> /// An example using this method in C# with <see cref="GenericDataWriter"/> /// <code source="ReUsingExamples\DataRetriever\ReUsingDataRetrieverGeneric.cs" lang="cs"> /// </code> /// </example> public void GetData(IDataQuery dataQuery, IDsplDataWriterEngine dataWriter) { if (dataQuery == null) { throw new ArgumentNullException("query"); } if (dataWriter == null) { throw new ArgumentNullException("writer"); } try { Logger.Info(Resources.InfoDataRetrieverBBInvoked); Logger.Info(Resources.InfoOutput + dataWriter.GetType().Name); // validate input and initialize the mappingset entitiy MappingSetEntity mappingSet = this.Initialize(dataQuery); var info = new DataRetrievalInfoSeries(mappingSet, dataQuery, this._connectionStringSettings, dataWriter, this._sdmxSchemaVersion) { DefaultHeader = this._defaultHeader }; ValidateMappingSet(info); //Pietro 27/01 //this.WriteHeader(dataWriter, info); //(SRA-345) //DR the info from I*DataQuery. DimensionAtObservation to IDataWriterEngine.StartDataSet IDatasetStructureReference dsr = new DatasetStructureReferenceCore("", dataQuery.DataStructure.AsReference, null, null, dataQuery.DimensionAtObservation); IDatasetHeader header = new DatasetHeaderCore(this._defaultHeader.DatasetId, this._defaultHeader.Action, dsr); //info.MappingSet.DataSet.Description.ToString() //info.MappingSet.Dataflow.Dsd.Id.ToString() dataWriter.SetDsdOrder(dataQuery.DataStructure); dataWriter.StartDataset(info.MappingSet.DataSet.Description.ToString(), dataQuery.Dataflow, dataQuery.DataStructure, header, null); // Generate sql query this.GenerateSql(info, _sqlBuilder); this.GenerateSql(info, SeriesDataSetSqlBuilder.Instance); this.GenerateSql(info, SeriesGroupSqlBuilder.Instance); // execute sql query this.ExecuteSql(info, SeriesQueryEngineManager.Instance.GetQueryEngine(info)); // close output dataWriter.Close(); Logger.Info(Resources.InfoEndDataRetrieverBBInvoked); } catch (DataRetrieverException) { throw; } catch (SdmxException) { throw; } catch (DbException ex) { Logger.Error(ex.ToString()); throw new DataRetrieverException(ex, SdmxErrorCode.GetFromEnum(SdmxErrorCodeEnumType.InternalServerError), Resources.DataRetriever_ExecuteSqlQuery_Error_executing_generated_SQL_and_populating_SDMX_model); } catch (OutOfMemoryException) { throw; } catch (Exception ex) { Logger.Error(ex.ToString()); throw new DataRetrieverException(ex, SdmxErrorCode.GetFromEnum(SdmxErrorCodeEnumType.InternalServerError), Resources.DataRetriever_ExecuteSqlQuery_Error_during_writing_responce); } }
/// <summary> /// Initializes a new instance of the <see cref="DataRetrievalInfoSeries" /> class. /// </summary> /// <param name="mappingSet">The mapping set of the dataflow found in the sdmx query</param> /// <param name="query">The current SDMX Query object</param> /// <param name="connectionStringSettings">The Mapping Store connection string settings</param> /// <param name="seriesWriter">The series Writer.</param> /// <param name="sdmxSchemaVersion">The SDMX schema version.</param> public DataRetrievalInfoSeries(MappingSetEntity mappingSet, IDataQuery query, ConnectionStringSettings connectionStringSettings, IDsplDataWriterEngine seriesWriter, SdmxSchemaEnumType sdmxSchemaVersion) : base(mappingSet, query, connectionStringSettings, sdmxSchemaVersion) { this._seriesWriter = seriesWriter; this._seriesObsComponents = new List<IComponentMapping>(); this._dataSetAttributes = new List<IComponentMapping>(); this._groups = new Dictionary<GroupEntity, GroupInformation>(); this._useDataSetSqlQuery = mappingSet.Dataflow.Dsd.Groups.Count > 0; this.BuildSeriesMappings(); // add dimension mappings to groups this.BuildTimeSeriesGroupMappings(); }
/// <summary> /// Write a DataMessage in XmlWriter /// </summary> /// <param name="writer">Stream Destination</param> public override void WriteDataMessage(IFlyWriter writer) { try { using (TextWriter tw = new StreamWriter(new MemoryStream())) { DsplTextWriter dsplTextWriter = new DsplTextWriter(tw); IDsplDataWriterEngine dataWriterEngine = null; switch (MessageType) { case MessageTypeEnum.Dspl: dataWriterEngine = new DsplBaseDataWriter(dsplTextWriter); break; } try { if (dataWriterEngine == null) { throw new SdmxException(this, FlyExceptionObject.FlyExceptionTypeEnum.InternalError, new Exception("No Type Message recognized")); } DataStructureObjectImpl dsd = _retrievalManager._dsd; IHeader header = FlyConfiguration.HeaderSettings.GetHeader(); dataWriterEngine.WriteHeader(header); // start dataset dataWriterEngine.SetDsdOrder(dsd.Immutated); dataWriterEngine.StartDataset(_retrievalManager.GetDataflowFromSdmxObject(), dsd.Immutated, new DsplBaseDataWriter.RetreiveCodelistDelegate(GetCodelist)); dataWriterEngine.StartSeries(null); List <DataMessageObject> dmo = _tableResponse.GetNext(); do { if (dmo == null) { break; } foreach (DataMessageObject seriesKey in dmo.FindAll(dim => OnlySeriesKey(dim))) { dataWriterEngine.WriteSeriesKeyValue(seriesKey.ColImpl.ConceptObjectCode, seriesKey.Val.ToString()); } //OBSERVATION DataMessageObject val = dmo.Find(dimV => dimV.ColImpl.ConceptType == ConceptTypeEnum.Attribute && ((IAttributeConcept)dimV.ColImpl).IsValueAttribute); DataMessageObject time = dmo.Find(dimT => dimT.ColImpl.ConceptType == ConceptTypeEnum.Dimension && ((IDimensionConcept)dimT.ColImpl).DimensionType == DimensionTypeEnum.Time); dataWriterEngine.WriteObservation(time.Val.ToString(), val.Val.ToString()); dmo = _tableResponse.GetNext(); } while (dmo != null); dataWriterEngine.CloseAndZip(writer.__DsplJSONTextWriter); writer.__DsplJSONTextWriter.Flush(); } catch (Exception ex) { throw new SdmxException(this, FlyExceptionObject.FlyExceptionTypeEnum.ErrorWriteFlatData, ex); } finally { dataWriterEngine.ClearTempFolder(); } } } catch (SdmxException) { throw; } catch (Exception ex) { throw new SdmxException(this, FlyExceptionObject.FlyExceptionTypeEnum.ErrorWriteDataMessage, ex); } }