NKC/NKC_WF/Controllers/PrintQueueController.cs

using AppData;
using Newtonsoft.Json;
using NKC_SDK;
using SteamWare;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Web.Http;

namespace NKC_WF.Controllers
{
    public class PrintQueueController : ApiController
    {
        #region classi gestione PJQ

        /// <summary>
        /// chaive redis x cache conteggio coda PJQ
        /// </summary>
        internal static string redQueueCount = "NKC:SERV:PJQ";
        /// <summary>
        /// Conteggio elementi in attesa stsampa da DB
        /// </summary>
        protected int countWaitingDb
        {
            get
            {
                int answ = 0;
                // resetto conteggio in redis...
                DS_Report.PrintJobQueueDataTable nextJob = DataLayer.man.taPJQ.getWaiting();
                if (nextJob != null)
                {
                    answ = nextJob.Count;
                }
                return answ;
            }
        }
        /// <summary>
        /// Carica i dati richiesti dal report dalla StoredProcedure (filtrando quindi...) e restituisce Dictionary [nome RDS / tab RDS]
        /// </summary>
        /// <param name="tipoReport"></param>
        /// <param name="keyParam">cod UDC</param>
        /// <returns>tabella dati</returns>
        private Dictionary<string, DataTable> caricaDati(reportRichiesto tipoReport, string keyParam)
        {
            int intIdx = 0;
            Dictionary<string, DataTable> answ = new Dictionary<string, DataTable>();
            DataTable tab = new DataTable();
            switch (tipoReport)
            {
                case reportRichiesto.bunkLabel:
                    int.TryParse(keyParam, out intIdx);
                    tab = (DataTable)DataLayer.man.taRepStack.GetData(intIdx);
                    answ.Add("stp_prt_StackLabel", tab);
                    break;
                case reportRichiesto.cartLabel:
                    //  int.TryParse(keyParam, out intIdx);
                    //  tab = (DataTable)DataLayer.man.taRepStack.GetData(intIdx);
                    break;
                case reportRichiesto.offlineLabel:
                    //  int.TryParse(keyParam, out intIdx);
                    //  tab = (DataTable)DataLayer.man.taRepStack.GetData(intIdx);
                    break;
                case reportRichiesto.paintLabelPre:
                    //  int.TryParse(keyParam, out intIdx);
                    //  tab = (DataTable)DataLayer.man.taRepStack.GetData(intIdx);
                    break;
                case reportRichiesto.paintLabelPost:
                    //  int.TryParse(keyParam, out intIdx);
                    //  tab = (DataTable)DataLayer.man.taRepStack.GetData(intIdx);
                    break;
                case reportRichiesto.partLabel:
                    int.TryParse(keyParam, out intIdx);
                    tab = (DataTable)DataLayer.man.taIL.getByKey(intIdx);
                    answ.Add("stp_prt_PartLabel", tab);
                    break;
                default:
                    break;
            }
            tab.Dispose();
            return answ;
        }


        protected reportRichiesto reportByTipo(string tipo)
        {
            reportRichiesto report = reportRichiesto.bunkLabel;
            switch (tipo)
            {
                case "docStack":
                    report = reportRichiesto.bunkLabel;
                    break;
                case "docBinPre":
                    report = reportRichiesto.paintLabelPre;
                    break;
                case "docBinPost":
                    report = reportRichiesto.paintLabelPost;
                    break;
                case "docCart":
                    report = reportRichiesto.cartLabel;
                    break;
                case "docPart":
                    report = reportRichiesto.partLabel;
                    break;
                case "docOffline":
                    report = reportRichiesto.offlineLabel;
                    break;
                default:
                    break;
            }
            return report;
        }

        #endregion

        #region REST api call

        /// <summary>
        /// Restituisce numero jobs aperti (stato = 0...), se 0 = NESSUNO
        /// GET: api/PrintQueue
        /// </summary>
        /// <returns></returns>
        public int Get()
        {
            // restituisco...
            int answ = 0;
            string redVal = memLayer.ML.getRSV(redQueueCount);
            // cerco in redis se ci sia chiave..
            if (!string.IsNullOrEmpty(redVal))
            {
                // recupero
                int.TryParse(redVal, out answ);
            }
            else
            {
                // recupero da dbe e salvo
                answ = countWaitingDb;
                memLayer.ML.setRSV(redQueueCount, answ.ToString(), 30);
            }
            return answ;
        }

        /// <summary>
        /// Elenco dei jobs aperti per la coda indicata
        /// GET: api/PrintQueue/queue_01
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public List<reportData> Get(string id)
        {
            List<reportData> answ = new List<reportData>();
            // recupero da DB...
            DS_Report.PrintJobQueueDataTable tabPJQ = DataLayer.man.taPJQ.getByQueue(id);
            if (tabPJQ.Count > 0)
            {
                reportData currReport = new reportData();
                Dictionary<string, DataTable> currRdsData;
                // ciclo!
                foreach (var pjReq in tabPJQ)
                {
                    currRdsData = caricaDati(reportByTipo(pjReq.TipoReport), pjReq.KeyParam);
                    // in base alla coda --> recupero i dati
                    currReport = new reportData()
                    {
                        ticketNum = pjReq.IdxPrintJob.ToString(),
                        rdsData = currRdsData
                    };
                    answ.Add(currReport);
                }
            }
            // compongo risposta...
            return answ;
        }

        /// <summary>
        /// Processa una chiamata POST per l'invio in blocco del risultato dell'elaborazione
        /// POST: api/PrintQueue
        /// </summary>
        /// <returns></returns>
        [HttpPost]
        public string Post()
        {
            string answ = "UNKN";
            // questa classe è derivata da Controller.Response... x cui recupero lo stream in altro modo...
            string content = "";
            System.Web.HttpContext.Current.Request.InputStream.Position = 0;
            using (var reader = new StreamReader(System.Web.HttpContext.Current.Request.InputStream, System.Text.Encoding.UTF8, true, 4096, true))
            {
                content = reader.ReadToEnd();
            }
            //Rest
            System.Web.HttpContext.Current.Request.InputStream.Position = 0;
            // procedo a deserializzare in blocco l'oggetto...
            try
            {
                // deserializzo.
                printTask printAnsw = JsonConvert.DeserializeObject<printTask>(content);
                // verifico se mi abbia dato esito 1 --> aggiorno DB!
                if (printAnsw != null)
                {
                    int idxPJQ = 0;
                    int.TryParse(printAnsw.ticketNum, out idxPJQ);
                    DataLayer.man.taPJQ.updateStato(idxPJQ, printAnsw.newStatus);
                    // resetto conteggio in redis...
                    memLayer.ML.setRSV(redQueueCount, countWaitingDb.ToString(), 30);
                    answ = "OK";
                }
            }
            catch
            { }
            // restituisco esito!
            return answ;
        }

        #endregion

    }
}