[3011] | 1 | #region License Information
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[1132] | 2 | /* HeuristicLab
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| 3 | * Copyright (C) 2002-2008 Heuristic and Evolutionary Algorithms Laboratory (HEAL)
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| 4 | *
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| 5 | * This file is part of HeuristicLab.
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| 6 | *
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| 7 | * HeuristicLab is free software: you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation, either version 3 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * HeuristicLab is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with HeuristicLab. If not, see <http://www.gnu.org/licenses/>.
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| 19 | */
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| 20 | #endregion
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| 21 |
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| 22 | using System;
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[923] | 23 | using System.Collections.Generic;
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| 24 | using System.Linq;
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| 25 | using System.Text;
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| 26 | using System.ServiceModel;
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| 27 | using HeuristicLab.Hive.Contracts.Interfaces;
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| 28 | using HeuristicLab.Hive.Contracts;
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| 29 | using HeuristicLab.Hive.Contracts.BusinessObjects;
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| 30 | using HeuristicLab.Hive.Client.Common;
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[993] | 31 | using HeuristicLab.Hive.Client.Communication.ServerService;
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[1450] | 32 | using HeuristicLab.PluginInfrastructure;
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[1939] | 33 | using System.IO;
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| 34 | using System.Runtime.Serialization.Formatters.Binary;
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[3578] | 35 | using HeuristicLab.Tracing;
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[923] | 36 |
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| 37 | namespace HeuristicLab.Hive.Client.Communication {
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[1132] | 38 | /// <summary>
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| 39 | /// WcfService class is implemented as a Singleton and works as a communication Layer with the Server
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| 40 | /// </summary>
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[923] | 41 | public class WcfService {
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| 42 | private static WcfService instance;
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[1132] | 43 | /// <summary>
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| 44 | /// Getter for the Instance of the WcfService
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| 45 | /// </summary>
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| 46 | /// <returns>the Instance of the WcfService class</returns>
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[923] | 47 | public static WcfService Instance {
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[3578] | 48 | get {
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[923] | 49 | if (instance == null) {
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[3578] | 50 | Logger.Debug("New WcfService Instance created");
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[923] | 51 | instance = new WcfService();
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| 52 | }
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| 53 | return instance;
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| 54 | }
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| 55 | }
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| 56 |
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[932] | 57 | public DateTime ConnectedSince { get; private set; }
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| 58 | public NetworkEnum.WcfConnState ConnState { get; private set; }
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| 59 | public string ServerIP { get; private set; }
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| 60 | public int ServerPort { get; private set; }
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[923] | 61 |
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[924] | 62 | public event EventHandler ConnectionRestored;
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[1081] | 63 | public event EventHandler ServerChanged;
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| 64 | public event EventHandler Connected;
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[924] | 65 |
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[1939] | 66 | public ClientFacadeClient proxy = null;
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[923] | 67 |
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[1132] | 68 | /// <summary>
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| 69 | /// Constructor
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| 70 | /// </summary>
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[923] | 71 | private WcfService() {
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[949] | 72 | ConnState = NetworkEnum.WcfConnState.Disconnected;
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[923] | 73 | }
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[1132] | 74 |
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| 75 | /// <summary>
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| 76 | /// Connects with the Server, registers the events and fires the Connected (and quiet possibly the ConnectionRestored) Event.
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| 77 | /// </summary>
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[923] | 78 | public void Connect() {
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| 79 | try {
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[3578] | 80 | Logger.Debug("Starting the Connection Process");
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[2025] | 81 | if (String.Empty.Equals(ServerIP) || ServerPort == 0) {
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[3578] | 82 | Logger.Info("No Server IP or Port set!");
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[2025] | 83 | return;
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| 84 | }
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[3578] | 85 |
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| 86 | Logger.Debug("Creating the new connection proxy");
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[1939] | 87 | proxy = new ClientFacadeClient(
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| 88 | WcfSettings.GetStreamedBinding(),
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[1081] | 89 | new EndpointAddress("net.tcp://" + ServerIP + ":" + ServerPort + "/HiveServer/ClientCommunicator")
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| 90 | );
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[3578] | 91 | Logger.Debug("Created the new connection proxy");
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[923] | 92 |
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[3578] | 93 | Logger.Debug("Registring new Events");
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[923] | 94 | proxy.LoginCompleted += new EventHandler<LoginCompletedEventArgs>(proxy_LoginCompleted);
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[1939] | 95 | proxy.SendStreamedJobCompleted += new EventHandler<SendStreamedJobCompletedEventArgs>(proxy_SendStreamedJobCompleted);
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| 96 | proxy.StoreFinishedJobResultStreamedCompleted += new EventHandler<StoreFinishedJobResultStreamedCompletedEventArgs>(proxy_StoreFinishedJobResultStreamedCompleted);
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| 97 | proxy.ProcessSnapshotStreamedCompleted += new EventHandler<ProcessSnapshotStreamedCompletedEventArgs>(proxy_ProcessSnapshotStreamedCompleted);
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[1366] | 98 | proxy.ProcessHeartBeatCompleted += new EventHandler<ProcessHeartBeatCompletedEventArgs>(proxy_ProcessHeartBeatCompleted);
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[3578] | 99 | Logger.Debug("Registered new Events");
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| 100 | Logger.Debug("Opening the Connection");
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[1082] | 101 | proxy.Open();
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[3578] | 102 | Logger.Debug("Opened the Connection");
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[1082] | 103 |
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[932] | 104 | ConnState = NetworkEnum.WcfConnState.Connected;
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[1097] | 105 | ConnectedSince = DateTime.Now;
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[3578] | 106 |
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| 107 | if (Connected != null) {
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| 108 | Logger.Debug("Calling the connected Event");
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| 109 | Connected(this, new EventArgs());
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| 110 | //Todo: This won't be hit. EVER
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| 111 | }
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[1097] | 112 | if (ConnState == NetworkEnum.WcfConnState.Failed)
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| 113 | ConnectionRestored(this, new EventArgs());
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[923] | 114 | }
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[1371] | 115 | catch (Exception ex) {
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| 116 | HandleNetworkError(ex);
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[923] | 117 | }
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| 118 | }
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| 119 |
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[1379] | 120 |
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[1132] | 121 | /// <summary>
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| 122 | /// Changes the Connectionsettings (serverIP & serverPort) and reconnects
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| 123 | /// </summary>
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| 124 | /// <param name="serverIP">current Server IP</param>
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| 125 | /// <param name="serverPort">current Server Port</param>
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[932] | 126 | public void Connect(String serverIP, int serverPort) {
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[3578] | 127 | Logger.Debug("Called Connected with " + serverIP + ":" + serverPort);
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[993] | 128 | String oldIp = this.ServerIP;
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| 129 | int oldPort = this.ServerPort;
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[932] | 130 | this.ServerIP = serverIP;
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[944] | 131 | this.ServerPort = serverPort;
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[923] | 132 | Connect();
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[993] | 133 | if (oldIp != serverIP || oldPort != ServerPort)
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[1036] | 134 | if(ServerChanged != null)
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| 135 | ServerChanged(this, new EventArgs());
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[923] | 136 | }
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[2025] | 137 |
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| 138 | public void SetIPAndPort(String serverIP, int serverPort) {
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[3578] | 139 | Logger.Debug("Called with " + serverIP + ":" + serverPort);
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[2025] | 140 | this.ServerIP = serverIP;
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| 141 | this.ServerPort = serverPort;
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| 142 | }
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[1132] | 143 |
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| 144 | /// <summary>
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| 145 | /// Disconnects the Client from the Server
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| 146 | /// </summary>
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[932] | 147 | public void Disconnect() {
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| 148 | ConnState = NetworkEnum.WcfConnState.Disconnected;
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| 149 | }
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| 150 |
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[1132] | 151 | /// <summary>
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| 152 | /// Network communication Error Handler - Every network error gets logged and the connection switches to faulted state
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| 153 | /// </summary>
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| 154 | /// <param name="e">The Exception</param>
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[1371] | 155 | private void HandleNetworkError(Exception e) {
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[932] | 156 | ConnState = NetworkEnum.WcfConnState.Failed;
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[3578] | 157 | Logger.Error("Network exception occurred: " + e);
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[923] | 158 | }
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| 159 |
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[1132] | 160 |
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| 161 |
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| 162 | /// <summary>
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| 163 | /// Methods for the Server Login
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| 164 | /// </summary>
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[923] | 165 | #region Login
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| 166 | public event System.EventHandler<LoginCompletedEventArgs> LoginCompleted;
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[3011] | 167 | public void LoginAsync(ClientDto clientInfo) {
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[3578] | 168 | if (ConnState == NetworkEnum.WcfConnState.Connected) {
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| 169 | Logger.Debug("STARTED: Login Async");
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[923] | 170 | proxy.LoginAsync(clientInfo);
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[3578] | 171 | }
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[923] | 172 | }
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| 173 | private void proxy_LoginCompleted(object sender, LoginCompletedEventArgs e) {
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[3578] | 174 | if (e.Error == null) {
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| 175 | Logger.Debug("ENDED: Login Async");
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[923] | 176 | LoginCompleted(sender, e);
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[3578] | 177 | } else
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[1371] | 178 | HandleNetworkError(e.Error.InnerException);
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[923] | 179 | }
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[1097] | 180 |
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[3011] | 181 | public void LoginSync(ClientDto clientInfo) {
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[1097] | 182 | try {
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| 183 | if (ConnState == NetworkEnum.WcfConnState.Connected) {
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[3578] | 184 | Logger.Debug("STARTED: Login Sync");
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[1097] | 185 | Response res = proxy.Login(clientInfo);
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[1959] | 186 | if (!res.Success) {
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[3578] | 187 | Logger.Error("FAILED: Login Failed! " + res.StatusMessage);
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| 188 | throw new Exception(res.StatusMessage);
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[1959] | 189 | } else {
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[3578] | 190 | Logger.Info("ENDED: Login succeeded" + res.StatusMessage);
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| 191 | ConnState = NetworkEnum.WcfConnState.Loggedin;
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[1959] | 192 | }
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[1097] | 193 | }
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| 194 | }
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| 195 | catch (Exception e) {
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[1371] | 196 | HandleNetworkError(e);
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[1097] | 197 | }
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| 198 | }
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| 199 |
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[923] | 200 | #endregion
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| 201 |
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[1132] | 202 | /// <summary>
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| 203 | /// Pull a Job from the Server
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| 204 | /// </summary>
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[923] | 205 | #region PullJob
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[1367] | 206 | public event System.EventHandler<SendJobCompletedEventArgs> SendJobCompleted;
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| 207 | public void SendJobAsync(Guid guid) {
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[3578] | 208 | if (ConnState == NetworkEnum.WcfConnState.Loggedin) {
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| 209 | Logger.Debug("STARTED: Fetching of Jobs from Server for Client");
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[1939] | 210 | proxy.SendStreamedJobAsync(guid);
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[3578] | 211 | }
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[923] | 212 | }
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[1939] | 213 |
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| 214 | void proxy_SendStreamedJobCompleted(object sender, SendStreamedJobCompletedEventArgs e) {
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| 215 | if (e.Error == null) {
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[3578] | 216 | Logger.Debug("ENDED: Fetching of Jobs from Server for Client");
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[2117] | 217 | Stream stream = null;
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[2122] | 218 | MemoryStream memStream = null;
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[1939] | 219 |
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[2117] | 220 | try {
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| 221 | stream = (Stream)e.Result;
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| 222 |
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| 223 | //first deserialize the response
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| 224 | BinaryFormatter formatter =
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| 225 | new BinaryFormatter();
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| 226 | ResponseJob response =
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| 227 | (ResponseJob)formatter.Deserialize(stream);
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| 228 |
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| 229 | //second deserialize the BLOB
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[2122] | 230 | memStream = new MemoryStream();
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| 231 |
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[2117] | 232 | byte[] buffer = new byte[3024];
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| 233 | int read = 0;
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| 234 | while ((read = stream.Read(buffer, 0, buffer.Length)) > 0) {
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| 235 | memStream.Write(buffer, 0, read);
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| 236 | }
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| 237 |
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[2122] | 238 | memStream.Close();
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| 239 |
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[2117] | 240 | SendJobCompletedEventArgs completedEventArgs =
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| 241 | new SendJobCompletedEventArgs(new object[] { response, memStream.GetBuffer() }, e.Error, e.Cancelled, e.UserState);
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| 242 | SendJobCompleted(sender, completedEventArgs);
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[3578] | 243 | } catch (Exception ex) {
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| 244 | Logger.Error(ex);
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| 245 | } finally {
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[2117] | 246 | if(stream != null)
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| 247 | stream.Dispose();
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[2122] | 248 |
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| 249 | if (memStream != null)
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| 250 | memStream.Dispose();
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[2117] | 251 | }
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[1939] | 252 | } else
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[1371] | 253 | HandleNetworkError(e.Error);
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[923] | 254 | }
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[1939] | 255 |
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[923] | 256 | #endregion
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| 257 |
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[1132] | 258 | /// <summary>
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| 259 | /// Send back finished Job Results
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| 260 | /// </summary>
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[923] | 261 | #region SendJobResults
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[1379] | 262 | public event System.EventHandler<StoreFinishedJobResultCompletedEventArgs> StoreFinishedJobResultCompleted;
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[1449] | 263 | public void StoreFinishedJobResultAsync(Guid clientId, Guid jobId, byte[] result, double percentage, Exception exception, bool finished) {
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[2117] | 264 | if (ConnState == NetworkEnum.WcfConnState.Loggedin) {
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[3578] | 265 | Logger.Debug("STARTED: Sending back the finished job results");
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| 266 | Logger.Debug("Building stream");
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[2117] | 267 | Stream stream =
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| 268 | GetStreamedJobResult(clientId, jobId, result, percentage, exception);
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[3578] | 269 | Logger.Debug("Builded stream");
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| 270 | Logger.Debug("Making the call");
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[2117] | 271 | proxy.StoreFinishedJobResultStreamedAsync(stream, stream);
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| 272 | }
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| 273 | }
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[1939] | 274 | private void proxy_StoreFinishedJobResultStreamedCompleted(object sender, StoreFinishedJobResultStreamedCompletedEventArgs e) {
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[3578] | 275 | Logger.Debug("Finished storing the job");
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[2117] | 276 | Stream stream =
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| 277 | (Stream)e.UserState;
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[3578] | 278 | if (stream != null) {
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| 279 | Logger.Debug("Stream not null, disposing it");
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[2117] | 280 | stream.Dispose();
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[3578] | 281 | }
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[1939] | 282 | if (e.Error == null) {
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| 283 | StoreFinishedJobResultCompletedEventArgs args =
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| 284 | new StoreFinishedJobResultCompletedEventArgs(
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| 285 | new object[] { e.Result }, e.Error, e.Cancelled, e.UserState);
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[3578] | 286 | Logger.Debug("calling the Finished Job Event");
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[1939] | 287 | StoreFinishedJobResultCompleted(sender, args);
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[3578] | 288 | Logger.Debug("ENDED: Sending back the finished job results");
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[1939] | 289 | } else
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[1371] | 290 | HandleNetworkError(e.Error);
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[923] | 291 | }
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| 292 |
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| 293 | #endregion
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| 294 |
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[1379] | 295 | #region Processsnapshots
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| 296 | public event System.EventHandler<ProcessSnapshotCompletedEventArgs> ProcessSnapshotCompleted;
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[1449] | 297 | public void ProcessSnapshotAsync(Guid clientId, Guid jobId, byte[] result, double percentage, Exception exception, bool finished) {
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[2117] | 298 | if (ConnState == NetworkEnum.WcfConnState.Loggedin) {
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| 299 | Stream stream = GetStreamedJobResult(
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| 300 | clientId, jobId, result, percentage, exception);
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| 301 |
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| 302 | proxy.ProcessSnapshotStreamedAsync(stream, stream);
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| 303 | }
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[1379] | 304 | }
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[1939] | 305 | void proxy_ProcessSnapshotStreamedCompleted(object sender, ProcessSnapshotStreamedCompletedEventArgs e) {
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[2117] | 306 | Stream stream =
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| 307 | (Stream)e.UserState;
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| 308 | if (stream != null)
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| 309 | stream.Dispose();
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| 310 |
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[1939] | 311 | if (e.Error == null) {
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| 312 | ProcessSnapshotCompletedEventArgs args =
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| 313 | new ProcessSnapshotCompletedEventArgs(
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| 314 | new object[] { e.Result }, e.Error, e.Cancelled, e.UserState);
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| 315 |
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| 316 | ProcessSnapshotCompleted(sender, args);
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| 317 | } else
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[1379] | 318 | HandleNetworkError(e.Error);
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| 319 | }
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| 320 |
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| 321 | #endregion
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[2107] | 322 |
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[1132] | 323 | /// <summary>
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| 324 | /// Methods for sending the periodically Heartbeat
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| 325 | /// </summary>
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[923] | 326 | #region Heartbeat
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| 327 |
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[1366] | 328 | public event System.EventHandler<ProcessHeartBeatCompletedEventArgs> SendHeartBeatCompleted;
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[923] | 329 | public void SendHeartBeatAsync(HeartBeatData hbd) {
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[1255] | 330 | if (ConnState == NetworkEnum.WcfConnState.Loggedin)
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[3578] | 331 | Logger.Debug("STARTING: sending heartbeat");
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[1366] | 332 | proxy.ProcessHeartBeatAsync(hbd);
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[923] | 333 | }
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| 334 |
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[1366] | 335 | private void proxy_ProcessHeartBeatCompleted(object sender, ProcessHeartBeatCompletedEventArgs e) {
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[3578] | 336 | if (e.Error == null && e.Result.Success == true) {
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[923] | 337 | SendHeartBeatCompleted(sender, e);
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[3578] | 338 | Logger.Debug("ENDED: sending heartbeats");
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| 339 | } else {
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[2107] | 340 | try {
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[3578] | 341 | Logger.Error("Error: " + e.Result.StatusMessage);
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[2107] | 342 | }
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[3578] | 343 | catch (Exception ex) {
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| 344 | Logger.Error("Error: ", ex);
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| 345 | }
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[1371] | 346 | HandleNetworkError(e.Error);
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[2063] | 347 | }
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[923] | 348 | }
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| 349 |
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[1097] | 350 | #endregion
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[1271] | 351 |
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| 352 | /// <summary>
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| 353 | /// Send back finished and Stored Job Results
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| 354 | /// </summary>
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[1939] | 355 | private Stream GetStreamedJobResult(Guid clientId, Guid jobId, byte[] result, double percentage, Exception exception) {
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[2117] | 356 | JobResult jobResult =
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| 357 | new JobResult();
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[1939] | 358 | jobResult.ClientId = clientId;
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| 359 | jobResult.JobId = jobId;
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| 360 | jobResult.Percentage = percentage;
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| 361 | jobResult.Exception = exception;
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| 362 |
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[2117] | 363 | MultiStream stream =
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| 364 | new MultiStream();
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[2099] | 365 |
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[2117] | 366 | //first send result
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| 367 | stream.AddStream(
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| 368 | new StreamedObject<JobResult>(jobResult));
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[1939] | 369 |
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[2117] | 370 | //second stream the job binary data
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| 371 | MemoryStream memStream =
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| 372 | new MemoryStream(result, false);
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| 373 | stream.AddStream(memStream);
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[1939] | 374 |
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| 375 | return stream;
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| 376 | }
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| 377 |
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[1812] | 378 | public ResponseResultReceived SendStoredJobResultsSync(Guid clientId, Guid jobId, byte[] result, double percentage, Exception exception, bool finished) {
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[1939] | 379 | return proxy.StoreFinishedJobResultStreamed(
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| 380 | GetStreamedJobResult(clientId, jobId, result, percentage, exception));
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[1271] | 381 | }
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[1450] | 382 |
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[1959] | 383 | public Response IsJobStillNeeded(Guid jobId) {
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| 384 | try {
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[3578] | 385 | Logger.Debug("STARTING: Sync call: IsJobStillNeeded");
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| 386 | Response res = proxy.IsJobStillNeeded(jobId);
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| 387 | Logger.Debug("ENDED: Sync call: IsJobStillNeeded");
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| 388 | return res;
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[1959] | 389 | }
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| 390 | catch (Exception e) {
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| 391 | HandleNetworkError(e);
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| 392 | return null;
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| 393 | }
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| 394 |
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| 395 | }
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| 396 |
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[1812] | 397 | public ResponseResultReceived ProcessSnapshotSync(Guid clientId, Guid jobId, byte[] result, double percentage, Exception exception) {
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[3578] | 398 | try {
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[1939] | 399 | return proxy.ProcessSnapshotStreamed(
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| 400 | GetStreamedJobResult(clientId, jobId, result, percentage, exception));
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[1812] | 401 | }
|
---|
| 402 | catch (Exception e) {
|
---|
| 403 | HandleNetworkError(e);
|
---|
| 404 | return null;
|
---|
| 405 | }
|
---|
| 406 | }
|
---|
| 407 |
|
---|
[3011] | 408 | public List<CachedHivePluginInfoDto> RequestPlugins(List<HivePluginInfoDto> requestedPlugins) {
|
---|
[1450] | 409 | try {
|
---|
[3578] | 410 | Logger.Debug("STARTED: Requesting Plugins for Job");
|
---|
| 411 | Logger.Debug("STARTED: Getting the stream");
|
---|
[1939] | 412 | Stream stream = proxy.SendStreamedPlugins(requestedPlugins.ToArray());
|
---|
[3578] | 413 | Logger.Debug("ENDED: Getting the stream");
|
---|
[1939] | 414 | BinaryFormatter formatter =
|
---|
| 415 | new BinaryFormatter();
|
---|
[3578] | 416 | Logger.Debug("STARTED: Deserializing the stream");
|
---|
[1939] | 417 | ResponsePlugin response = (ResponsePlugin)formatter.Deserialize(stream);
|
---|
[3578] | 418 | Logger.Debug("ENDED: Deserializing the stream");
|
---|
| 419 | if (stream != null)
|
---|
| 420 | stream.Dispose();
|
---|
[1635] | 421 | return response.Plugins;
|
---|
[1450] | 422 | }
|
---|
| 423 | catch (Exception e) {
|
---|
| 424 | HandleNetworkError(e);
|
---|
| 425 | return null;
|
---|
| 426 | }
|
---|
| 427 | }
|
---|
| 428 |
|
---|
[1635] | 429 | public void Logout(Guid guid) {
|
---|
| 430 | try {
|
---|
[3578] | 431 | Logger.Debug("STARTED: Logout");
|
---|
[1635] | 432 | proxy.Logout(guid);
|
---|
[3578] | 433 | Logger.Debug("ENDED: Logout");
|
---|
[1635] | 434 | }
|
---|
| 435 | catch (Exception e) {
|
---|
| 436 | HandleNetworkError(e);
|
---|
| 437 | }
|
---|
| 438 | }
|
---|
[3203] | 439 |
|
---|
| 440 | public ResponseCalendar GetCalendarSync(Guid clientId) {
|
---|
| 441 | try {
|
---|
[3578] | 442 | Logger.Debug("STARTED: Syncing Calendars");
|
---|
| 443 | ResponseCalendar cal = proxy.GetCalendar(clientId);
|
---|
| 444 | Logger.Debug("ENDED: Syncing Calendars");
|
---|
| 445 | return cal;
|
---|
[3203] | 446 | }
|
---|
| 447 | catch (Exception e) {
|
---|
| 448 | HandleNetworkError(e);
|
---|
| 449 | return null;
|
---|
| 450 | }
|
---|
| 451 | }
|
---|
| 452 |
|
---|
| 453 | public Response SetCalendarStatus (Guid clientId, CalendarState state) {
|
---|
| 454 | try {
|
---|
[3578] | 455 | Logger.Debug("STARTED: Setting Calendar status to: " + state);
|
---|
| 456 | Response resp = proxy.SetCalendarStatus(clientId, state);
|
---|
| 457 | Logger.Debug("ENDED: Setting Calendar status to: " + state);
|
---|
| 458 | return resp;
|
---|
[3203] | 459 | } catch (Exception e) {
|
---|
| 460 | HandleNetworkError(e);
|
---|
| 461 | return null;
|
---|
| 462 | }
|
---|
| 463 | }
|
---|
| 464 |
|
---|
[923] | 465 | }
|
---|
| 466 | }
|
---|