//******************************************************************************************************//  TimeSeriesDataService.cs - Gbtc////  Copyright © 2012, Grid Protection Alliance.  All Rights Reserved.////  Licensed to the Grid Protection Alliance (GPA) under one or more contributor license agreements. See//  the NOTICE file distributed with this work for additional information regarding copyright ownership.//  The GPA licenses this file to you under the MIT License (MIT), the "License"; you may//  not use this file except in compliance with the License. You may obtain a copy of the License at:////      http://www.opensource.org/licenses/MIT////  Unless agreed to in writing, the subject software distributed under the License is distributed on an//  "AS-IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. Refer to the//  License for the specific language governing permissions and limitations.////  Code Modification History://  ----------------------------------------------------------------------------------------------------//  09/01/2009 - Pinal C. Patel//       Generated original version of source code.//  09/10/2009 - Pinal C. Patel//       Modified the logic in ReadCurrentTimeSeriesData() overloads to remove try-catch and check for //       null reference instead.//  09/15/2009 - Stephen C. Wills//       Added new header and license agreement.//  12/15/2009 - Pinal C. Patel//       Changed the default port for the service from 5152 to 6152.//  03/30/2010 - Pinal C. Patel//       Added check to verify that the service is enabled before processing incoming requests.//  10/11/2010 - Mihir Brahmbhatt//       Updated header and license agreement.//  11/07/2010 - Pinal C. Patel//       Modified to fix breaking changes made to SelfHostingService.//  12/14/2012 - Starlynn Danyelle Gilliam//       Modified Header.////****************************************************************************************************** using System;using System.Collections.Generic;using System.ServiceModel;using System.Text;using GSF.Historian.Files; namespace GSF.Historian.DataServices{    /// <summary>    /// Represents a REST web service for time-series data.    /// </summary>    /// <seealso cref="SerializableTimeSeriesData"/>    [ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Multiple)]    public class TimeSeriesDataService : DataService, ITimeSeriesDataService    {        #region [ Constructors ]         /// <summary>        /// Initializes a new instance of the <see cref="TimeSeriesDataService"/> class.        /// </summary>        public TimeSeriesDataService()        {            Endpoints = "http.rest://localhost:6152/historian";        }         #endregion         #region [ Methods ]         /// <summary>        /// Writes <paramref name="data"/> received in <see cref="System.ServiceModel.Web.WebMessageFormat.Xml"/> format to the <see cref="DataService.Archive"/>.        /// </summary>        /// <param name="data">An <see cref="SerializableTimeSeriesData"/> object.</param>        public void WriteTimeSeriesDataAsXml(SerializableTimeSeriesData data)        {            WriteTimeSeriesData(data);        }         /// <summary>        /// Writes <paramref name="data"/> received in <see cref="System.ServiceModel.Web.WebMessageFormat.Json"/> format to the <see cref="DataService.Archive"/>.        /// </summary>        /// <param name="data">An <see cref="SerializableTimeSeriesData"/> object.</param>        public void WriteTimeSeriesDataAsJson(SerializableTimeSeriesData data)        {            WriteTimeSeriesData(data);        }         /// <summary>        /// Reads current time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Xml"/> format.        /// </summary>        /// <param name="idList">A comma or semi-colon delimited list of IDs for which current time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadSelectCurrentTimeSeriesDataAsXml(string idList)        {            return ReadCurrentTimeSeriesData(idList);        }         /// <summary>        /// Reads current time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Xml"/> format.        /// </summary>        /// <param name="fromID">Starting ID in the ID range for which current time-series data is to be read.</param>        /// <param name="toID">Ending ID in the ID range for which current time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadRangeCurrentTimeSeriesDataAsXml(string fromID, string toID)        {            return ReadCurrentTimeSeriesData(fromID, toID);        }         /// <summary>        /// Reads current time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Json"/> format.        /// </summary>        /// <param name="idList">A comma or semi-colon delimited list of IDs for which current time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadSelectCurrentTimeSeriesDataAsJson(string idList)        {            return ReadCurrentTimeSeriesData(idList);        }         /// <summary>        /// Reads current time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Json"/> format.        /// </summary>        /// <param name="fromID">Starting ID in the ID range for which current time-series data is to be read.</param>        /// <param name="toID">Ending ID in the ID range for which current time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadRangeCurrentTimeSeriesDataAsJson(string fromID, string toID)        {            return ReadCurrentTimeSeriesData(fromID, toID);        }         /// <summary>        /// Reads historic time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Xml"/> format.        /// </summary>        /// <param name="idList">A comma or semi-colon delimited list of IDs for which historic time-series data is to be read.</param>        /// <param name="startTime">Start time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <param name="endTime">End time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadSelectHistoricTimeSeriesDataAsXml(string idList, string startTime, string endTime)        {            return ReadHistoricTimeSeriesData(idList, startTime, endTime);        }         /// <summary>        /// Reads historic time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Xml"/> format.        /// </summary>        /// <param name="fromID">Starting ID in the ID range for which historic time-series data is to be read.</param>        /// <param name="toID">Ending ID in the ID range for which historic time-series data is to be read.</param>        /// <param name="startTime">Start time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <param name="endTime">End time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadRangeHistoricTimeSeriesDataAsXml(string fromID, string toID, string startTime, string endTime)        {            return ReadHistoricTimeSeriesData(fromID, toID, startTime, endTime);        }         /// <summary>        /// Reads historic time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Json"/> format.        /// </summary>        /// <param name="idList">A comma or semi-colon delimited list of IDs for which historic time-series data is to be read.</param>        /// <param name="startTime">Start time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <param name="endTime">End time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadSelectHistoricTimeSeriesDataAsJson(string idList, string startTime, string endTime)        {            return ReadHistoricTimeSeriesData(idList, startTime, endTime);        }         /// <summary>        /// Reads historic time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Json"/> format.        /// </summary>        /// <param name="fromID">Starting ID in the ID range for which historic time-series data is to be read.</param>        /// <param name="toID">Ending ID in the ID range for which historic time-series data is to be read.</param>        /// <param name="startTime">Start time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <param name="endTime">End time in <see cref="string"/> format of the timespan for which historic time-series data is to be read.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadRangeHistoricTimeSeriesDataAsJson(string fromID, string toID, string startTime, string endTime)        {            return ReadHistoricTimeSeriesData(fromID, toID, startTime, endTime);        }         /// <summary>        /// Reads historic time-series data from the <see cref="DataService.Archive"/> and sends it in <see cref="System.ServiceModel.Web.WebMessageFormat.Json"/> format.        /// </summary>        /// <param name="data">JSON serialized post request.</param>        /// <returns>An <see cref="SerializableTimeSeriesData"/> object.</returns>        public SerializableTimeSeriesData ReadSelectHistoricTimeSeriesDataAsJsonPost(SerializableReadRequestData data)        {            StringBuilder idList = new StringBuilder();             foreach (int id in data.idArray)            {                if (idList.Length > 0)                    idList.Append(',');                 idList.Append(id);            }             return ReadHistoricTimeSeriesData(idList.ToString(), data.startTime, data.endTime);        }         private void WriteTimeSeriesData(SerializableTimeSeriesData data)        {            try            {                // Abort if services is not enabled.                if (!Enabled)                    return;                 // Ensure that data archive is available.                if (Archive == null)                    throw new ArgumentNullException("Archive");                 // Write all time-series data to the archive.                foreach (SerializableTimeSeriesDataPoint point in data.TimeSeriesDataPoints)                {                    Archive.WriteData(point.Deflate());                }            }            catch (Exception ex)            {                // Notify about the encountered processing exception.                OnServiceProcessException(ex);                throw;            }        }         private SerializableTimeSeriesData ReadCurrentTimeSeriesData(string idList)        {            try            {                // Abort if services is not enabled.                if (!Enabled)                    return null;                 // Ensure that data archive is available.                if (Archive == null)                    throw new ArgumentNullException("Archive");                 // Read current time-series data from the archive.                int id = 0;                byte[] buffer = null;                StateRecord state = null;                SerializableTimeSeriesData data = new SerializableTimeSeriesData();                List<SerializableTimeSeriesDataPoint> points = new List<SerializableTimeSeriesDataPoint>();                foreach (string singleID in idList.Split(',', ';'))                {                    buffer = Archive.ReadStateData(id = int.Parse(singleID));                    if ((object)buffer == null)                    {                        // ID is invalid.                        continue;                    }                    else                    {                        // Add to resultset.                        state = new StateRecord(id, buffer, 0, buffer.Length);                        points.Add(new SerializableTimeSeriesDataPoint(state.CurrentData));                    }                }                data.TimeSeriesDataPoints = points.ToArray();                 return data;            }            catch (Exception ex)            {                // Notify about the encountered processing exception.                OnServiceProcessException(ex);                throw;            }        }         private SerializableTimeSeriesData ReadCurrentTimeSeriesData(string fromID, string toID)        {            try            {                // Abort if services is not enabled.                if (!Enabled)                    return null;                 // Ensure that data archive is available.                if (Archive == null)                    throw new ArgumentNullException("Archive");                 // Read current time-series data from the archive.                byte[] buffer = null;                StateRecord state = null;                SerializableTimeSeriesData data = new SerializableTimeSeriesData();                List<SerializableTimeSeriesDataPoint> points = new List<SerializableTimeSeriesDataPoint>();                for (int id = int.Parse(fromID); id <= int.Parse(toID); id++)                {                    buffer = Archive.ReadStateData(id);                    if ((object)buffer == null)                    {                        // ID is invalid.                        continue;                    }                    else                    {                        // Add to resultset.                        state = new StateRecord(id, buffer, 0, buffer.Length);                        points.Add(new SerializableTimeSeriesDataPoint(state.CurrentData));                    }                }                data.TimeSeriesDataPoints = points.ToArray();                 return data;            }            catch (Exception ex)            {                // Notify about the encountered processing exception.                OnServiceProcessException(ex);                throw;            }        }         private SerializableTimeSeriesData ReadHistoricTimeSeriesData(string idList, string startTime, string endTime)        {            try            {                // Abort if services is not enabled.                if (!Enabled)                    return null;                 // Ensure that data archive is available.                if (Archive == null)                    throw new ArgumentNullException("Archive");                 // Read historic time-series data from the archive.                int id = 0;                SerializableTimeSeriesData data = new SerializableTimeSeriesData();                List<SerializableTimeSeriesDataPoint> points = new List<SerializableTimeSeriesDataPoint>();                List<int> historianIDs = new List<int>();                 foreach (string singleID in idList.Split(',', ';'))                {                    if (int.TryParse(singleID, out id))                        historianIDs.Add(id);                }                 foreach (IDataPoint point in Archive.ReadData(historianIDs, startTime, endTime))                {                    points.Add(new SerializableTimeSeriesDataPoint(point));                }                 data.TimeSeriesDataPoints = points.ToArray();                 return data;            }            catch (Exception ex)            {                // Notify about the encountered processing exception.                OnServiceProcessException(ex);                throw;            }        }         private SerializableTimeSeriesData ReadHistoricTimeSeriesData(string fromID, string toID, string startTime, string endTime)        {            try            {                // Abort if services is not enabled.                if (!Enabled)                    return null;                 // Ensure that data archive is available.                if (Archive == null)                    throw new ArgumentNullException("Archive");                 // Read historic time-series data from the archive.                SerializableTimeSeriesData data = new SerializableTimeSeriesData();                List<SerializableTimeSeriesDataPoint> points = new List<SerializableTimeSeriesDataPoint>();                List<int> historianIDs = new List<int>();                 for (int id = int.Parse(fromID); id <= int.Parse(toID); id++)                {                    historianIDs.Add(id);                }                 foreach (IDataPoint point in Archive.ReadData(historianIDs, startTime, endTime))                {                    points.Add(new SerializableTimeSeriesDataPoint(point));                }                 data.TimeSeriesDataPoints = points.ToArray();                 return data;            }            catch (Exception ex)            {                // Notify about the encountered processing exception.                OnServiceProcessException(ex);                throw;            }        }         #endregion    }}