C# IUServiceContext类代码示例

        /// <summary>
        /// Obtains the ArgumentsList contained in a IUServiceContext.
        /// </summary>
        /// <param name="context">Context the list is obtained from.</param>
        /// <returns>ArgumentsList contained in the context.</returns>
        private static ArgumentsList GetArgumentListFromArgumentInfoContext(IUServiceContext context)
        {
            Dictionary<string, ModelType> largumentTypes = null;
            ArgumentsList lResult = null;

            largumentTypes = Logics.Logic.GetInboundArgumentTypes(context.ClassName, context.ContainerName);
            if (largumentTypes != null)
            {
                lResult = GetArgumentListFromArgumentInfoContext(context.InputFields, largumentTypes);
            }

            largumentTypes = Logics.Logic.GetOutboundArgumentTypes(context.ClassName, context.ContainerName);
            if (largumentTypes != null)
            {
                if (context.OutputFields != null && context.OutputFields.Count > 0)
                {
                    foreach (KeyValuePair<string, ModelType> largumentType in largumentTypes)
                    {
                        object argumentInfo = context.OutputFields[largumentType.Key];

                        if (argumentInfo != null)
                        {
                            if (largumentType.Value == ModelType.Oid)
                            {
                                List<Oid> lOids = argumentInfo as List<Oid>;
                                if (lOids != null && lOids.Count == 1)
                                {
                                    lResult.Add(largumentType.Key, largumentType.Value, lOids[0], lOids[0].ClassName);
                                }
                            }
                            else
                            {
                                if (argumentInfo != null)
                                {
                                lResult.Add(largumentType.Key, largumentType.Value, argumentInfo, string.Empty);
                                }
                            }
                        }
                    }
                }
            }

            if (lResult != null)
            {
                return lResult;
            }

            return null;
        }

        /// <summary>
        /// Initialize the inbound arguments based in the context information.
        /// </summary>
        /// <param name="context">Current service context.</param>
        public static void ExecuteLoadFromContext(IUServiceContext context)
        {
            int depRulesCounter  = Properties.Settings.Default.DependencyRulesCounter;
            DependencyRulesCache depRulesCache = new DependencyRulesCache();

            // If Exchange information does not exist, none initialization can be done.
            if (context == null || context.ExchangeInformation == null)
            {
                return;
            }

            // Argument previous value. Common for all of them.
            object previousValue;

            #region Aggregation relationships initializations
            // Obtain data from the last navigation, in order to initialize object-valued arguments that represent aggregation relationships.
            string lLastNavigationRole = context.ExchangeInformation.GetLastNavigationRole();

            if (lLastNavigationRole != "")
            {

            }
            #endregion Aggregation relationships initializations

            #region Manual initializations
            // Search in context for initializations done by programmers, in order to achieve special behaviours.
            foreach(KeyValuePair<string,object> argument in context.ExchangeInformation.CustomData)
            {
                previousValue = context.GetInputFieldValue(argument.Key);

                object lCustomArgumentValue = argument.Value;

                context.SetInputFieldValue(argument.Key, lCustomArgumentValue);
                // Check SetValue dependency rules
                context.SelectedInputField = argument.Key;
                ExecuteDependencyRules(context, previousValue, DependencyRulesEventLogic.SetValue, DependencyRulesAgentLogic.Internal, ref depRulesCounter, depRulesCache);
                context.SelectedInputField = string.Empty;
            }
            #endregion Manual initializations

            #region Arguments initializations taking into account context information
            #endregion Arguments initializations taking into account context information
        }

 /// <summary>
 /// Solves the validation of inbound arguments of 'create_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 public static void ExecuteValidateValue(IUServiceContext context)
 {
     switch (context.SelectedInputField)
     {
         case "p_atrid_NaveNodriza":
             ExecuteValidateValuep_atrid_NaveNodriza(context.Agent, context.GetInputFieldValue("p_atrid_NaveNodriza") as int?);
             break;
         case "p_atrNombre_NaveNodriza":
             ExecuteValidateValuep_atrNombre_NaveNodriza(context.Agent, context.GetInputFieldValue("p_atrNombre_NaveNodriza") as string);
             break;
         default:
             break;
     }
 }

 /// <summary>
 /// Solves the dependency rules of 'edit_instance' inbound arguments, updating the context received as parameter.
 /// </summary>
 /// <param name="context">Current context.</param>
 /// <param name="oldValue">Old value of the modified argument.</param>
 /// <param name="dependencyRulesEvent">Event that has been thrown (SetValue, SetEnabled).</param>
 /// <param name="dependencyRulesAgent">Agent that has thrown the event (User, Internal).</param>
 public static void ExecuteDependencyRules(IUServiceContext context, object oldValue, DependencyRulesEventLogic dependencyRulesEvent, DependencyRulesAgentLogic dependencyRulesAgent)
 {
     int lDependencyRulesCounter = Properties.Settings.Default.DependencyRulesCounter;
     DependencyRulesCache depRulesCache = new DependencyRulesCache();
     ExecuteDependencyRules(context, oldValue, dependencyRulesEvent, dependencyRulesAgent, ref lDependencyRulesCounter, depRulesCache);
 }

 /// <summary>
 /// Solve the conditional navigation of 'edit_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 /// <returns>A ExchangeInfoConditionalNavigation object indicating the target scenario and its initializations.</returns>
 public static ExchangeInfoConditionalNavigation ExecuteConditionalNavigation(IUServiceContext context)
 {
     return null; // No conditional navigations are defined for this service IU.
 }

 /// <summary>
 /// Solves the validation of inbound arguments of 'edit_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 public static void ExecuteValidateValue(IUServiceContext context)
 {
     switch (context.SelectedInputField)
     {
         case "p_thisPasajero":
             ExecuteValidateValuep_thisPasajero(context.Agent, context.GetInputFieldValue("p_thisPasajero") as List<Oid>);
             break;
         default:
             break;
     }
 }

 /// <summary>
 /// Gets the effect type of 'create_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 /// <returns>Effect type of the service (Creation, Destruction, Modification).</returns>
 public static ServiceEffectType GetServiceEffectType(IUServiceContext context)
 {
     // ServiceType = C.
     return ServiceEffectType.Creation;
 }

        /// <summary>
        /// Solve the conditional navigation of a service.
        /// </summary>
        /// <param name="context">Current context.</param>
        /// <returns>A ExchangeInfo object indicating the target scenario and its initializations.</returns>
        public static ExchangeInfoConditionalNavigation ExecuteConditionalNavigation(IUServiceContext context)
        {
            // Parameter values.
            object[] lParameters = new object[1];
            lParameters[0] = context;

            // Parameter types.
            Type[] lTypes = new Type[1];
            lTypes[0] = typeof(IUServiceContext);

            return ExecuteMethod(GetServiceTypeName(context.ClassName, context.ServiceName), "ExecuteConditionalNavigation", lTypes, lParameters) as ExchangeInfoConditionalNavigation;
        }

        /// <summary>
        /// Process the Display Service execute event
        /// </summary>
        protected virtual void ProcessExecuteServiceTriggered(object sender, TriggerEventArgs e)
        {
            // Before executing the DisplaySet Service it is needed to check for pending changes in associated Service IU.
            IUQueryController queryController = Parent as IUQueryController;
            if (queryController != null && !queryController.CheckPendingChanges(false, true))
            {
                return;
            }
            if (CurrentDisplaySet.ServiceInfo == null)
            {
                return;
            }

            // Gets modified rows from the viewer
            DataTable modifiedRows = Viewer.GetModifiedRows();
            if (modifiedRows == null)
            {
                return;
            }

            // Validate the modified data
            if (!ValidateModifiedRows(modifiedRows))
            {
                return;
            }

            // Error datatable
            DataTable errorReport = new DataTable();
            // Column for the OID
            string instanceColumnsName = CurrentDisplaySet.ServiceInfo.SelectedInstanceArgumentAlias;
            errorReport.Columns.Add(instanceColumnsName);
            // Column for the error message
            string lReportMessage = CultureManager.TranslateString(LanguageConstantKeys.L_MULTIEXE_EXECUTION, LanguageConstantValues.L_MULTIEXE_EXECUTION);
            errorReport.Columns.Add(lReportMessage);

            IUServiceContext lServiceContext = null;
            // For every modified row do...
            foreach (DataRow rowValues in modifiedRows.Rows)
            {
                // Create new IUServiceContext.
                lServiceContext = new IUServiceContext(null, CurrentDisplaySet.ServiceInfo.ClassServiceName, CurrentDisplaySet.ServiceInfo.ServiceName, null);
                // Add argunment this to the service context.
                List<Oid> instanceOIDs = new List<Oid>();
                Oid instanceOID = Adaptor.ServerConnection.GetOid(modifiedRows, rowValues);
                instanceOIDs.Add(instanceOID);
                lServiceContext.InputFields.Add(CurrentDisplaySet.ServiceInfo.SelectedInstanceArgumentName, new IUContextArgumentInfo(CurrentDisplaySet.ServiceInfo.SelectedInstanceArgumentName, instanceOIDs, true, null));

                // Fill the collections for the other inbound arguments.
                foreach (DisplaySetServiceArgumentInfo argumentInfo in CurrentDisplaySet.ServiceInfo.ArgumentDisplaySetPairs.Values)
                {
                    object value = rowValues[argumentInfo.DSElementName];
                    if (value.GetType() == typeof(System.DBNull))
                    {
                        value = null;
                    }
                    //Add input arguments with context.
                    lServiceContext.InputFields.Add(argumentInfo.Name, new IUContextArgumentInfo(argumentInfo.Name, value, true, null));
                }
                try
                {
                    // Execute service.
                    Logic.ExecuteService(lServiceContext);
                }
                catch (Exception exc)
                {
                    string lAlternateKeyName = CurrentDisplaySet.ServiceInfo.SelectedInstanceArgumentAlternateKeyName;
                    if (lAlternateKeyName != string.Empty)
                    {
                        instanceOID = Logic.GetAlternateKeyFromOid(instanceOID, lAlternateKeyName);
                    }

                    // Add a new row in the error datatable.
                    DataRow newReportRow = errorReport.NewRow();
                    newReportRow[lReportMessage] = exc.Message;
                    newReportRow[instanceColumnsName] = UtilFunctions.OidFieldsToString(instanceOID, ' ');
                    errorReport.Rows.Add(newReportRow);
                }
            }

            // If errors have been found, show them
            if (errorReport.Rows.Count > 0)
            {
                // Show error message to the user
                ScenarioManager.LaunchMultiExecutionReportScenario(errorReport, CurrentDisplaySet.ServiceInfo.ServiceAlias, null, null);
            }

            // Remove the Pending changes mark
            PendingChanges = false;

            // Refresh the data
            OnExecuteCommand(new ExecuteCommandRefreshEventArgs(null));
        }

 /// <summary>
 /// Solves the validation of inbound arguments of 'create_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 public static void ExecuteValidateValue(IUServiceContext context)
 {
     switch (context.SelectedInputField)
     {
         case "p_agrPasajeroAeronave":
             ExecuteValidateValuep_agrPasajeroAeronave(context.Agent, context.GetInputFieldValue("p_agrPasajeroAeronave") as List<Oid>);
             break;
         case "p_agrRevision":
             ExecuteValidateValuep_agrRevision(context.Agent, context.GetInputFieldValue("p_agrRevision") as List<Oid>);
             break;
         case "p_atrid_RevisionPasajero":
             ExecuteValidateValuep_atrid_RevisionPasajero(context.Agent, context.GetInputFieldValue("p_atrid_RevisionPasajero") as int?);
             break;
         default:
             break;
     }
 }

 /// <summary>
 /// Method that solves the execution of 'create_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 public static void ExecuteService(IUServiceContext context)
 {
     context.OutputFields = ExecuteService(context.Agent, context.GetInputFieldValue("p_agrPasajeroAeronave") as List<Oid>, context.GetInputFieldValue("p_agrRevision") as List<Oid>, context.GetInputFieldValue("p_atrid_RevisionPasajero") as int?);
 }

 /// <summary>
 /// Method that solves the execution of 'create_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 public static void ExecuteService(IUServiceContext context)
 {
     context.OutputFields = ExecuteService(context.Agent, context.GetInputFieldValue("p_agrAeronave") as List<Oid>, context.GetInputFieldValue("p_agrPasajero") as List<Oid>, context.GetInputFieldValue("p_atrid_PasajeroAeronave") as int?, context.GetInputFieldValue("p_atrNombreAeronave") as string, context.GetInputFieldValue("p_atrNombrePasajero") as string);
 }

 /// <summary>
 /// Method that solves the execution of 'create_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 public static void ExecuteService(IUServiceContext context)
 {
     context.OutputFields = ExecuteService(context.Agent, context.GetInputFieldValue("p_agrPasajeroAeronave") as List<Oid>, context.GetInputFieldValue("p_atrid_Aeronave") as int?, context.GetInputFieldValue("p_atrNombre") as string, context.GetInputFieldValue("p_atrMaximoPasajeros") as int?, context.GetInputFieldValue("p_atrOrigen") as string, context.GetInputFieldValue("p_atrDestino") as string);
 }

        /// <summary>
        /// Solves the dependency rules of a service.
        /// </summary>
        /// <param name="context">Current context.</param>
        /// <param name="lastValue">Old value of the modified argument.</param>
        /// <param name="dependencyRulesEvent">Event that has been thrown (SetValue, SetEnabled).</param>
        /// <param name="dependencyRulesAgent">Agent that has thrown the event (User, Internal).</param>
        public static void ExecuteDependencyRules(IUServiceContext context, object lastValue, DependencyRulesEventLogic dependencyRulesEvent, DependencyRulesAgentLogic dependencyRulesAgent)
        {
            // Parameter values.
            object[] lParameters = new object[4];
            lParameters[0] = context;
            lParameters[1] = lastValue;
            lParameters[2] = dependencyRulesEvent;
            lParameters[3] = dependencyRulesAgent;

            // Parameter types.
            Type[] lTypes = new Type[4];
            lTypes[0] = typeof(IUServiceContext);
            lTypes[1] = typeof(object);
            lTypes[2] = typeof(DependencyRulesEventLogic);
            lTypes[3] = typeof(DependencyRulesAgentLogic);

            ExecuteMethod(GetServiceTypeName(context.ClassName, context.ServiceName), "ExecuteDependencyRules", lTypes, lParameters);
        }

 /// <summary>
 /// Solves the validation of inbound arguments of 'create_instance' service.
 /// </summary>
 /// <param name="context">Current context.</param>
 public static void ExecuteValidateValue(IUServiceContext context)
 {
     switch (context.SelectedInputField)
     {
         case "p_agrPasajeroAeronave":
             ExecuteValidateValuep_agrPasajeroAeronave(context.Agent, context.GetInputFieldValue("p_agrPasajeroAeronave") as List<Oid>);
             break;
         case "p_atrid_Aeronave":
             ExecuteValidateValuep_atrid_Aeronave(context.Agent, context.GetInputFieldValue("p_atrid_Aeronave") as int?);
             break;
         case "p_atrNombre":
             ExecuteValidateValuep_atrNombre(context.Agent, context.GetInputFieldValue("p_atrNombre") as string);
             break;
         case "p_atrMaximoPasajeros":
             ExecuteValidateValuep_atrMaximoPasajeros(context.Agent, context.GetInputFieldValue("p_atrMaximoPasajeros") as int?);
             break;
         case "p_atrOrigen":
             ExecuteValidateValuep_atrOrigen(context.Agent, context.GetInputFieldValue("p_atrOrigen") as string);
             break;
         case "p_atrDestino":
             ExecuteValidateValuep_atrDestino(context.Agent, context.GetInputFieldValue("p_atrDestino") as string);
             break;
         default:
             break;
     }
 }