//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 CsvZipDelayedDataWriterEngine(ICsvZipDataWriterEngine dataWriterEngine, Queue<Action> actions)
{
if (dataWriterEngine == null)
{
throw new ArgumentNullException("CsvZipdataWriterEngine");
}
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, ICsvZipDataWriterEngine 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()
//Pietro 02/02/15 CSV
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, ICsvZipDataWriterEngine 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();
}
