/// <summary>
        /// Parse Protocol
        /// </summary>
        public static Hl7.Fhir.Model.Protocol ParseProtocol(IFhirReader reader, ErrorList errors, Hl7.Fhir.Model.Protocol existingInstance = null)
        {
            Hl7.Fhir.Model.Protocol result = existingInstance != null ? existingInstance : new Hl7.Fhir.Model.Protocol();
            try
            {
                string currentElementName = reader.CurrentElementName;
                reader.EnterElement();

                while (reader.HasMoreElements())
                {
                    // Parse element extension
                    if (ParserUtils.IsAtFhirElement(reader, "extension"))
                    {
                        result.Extension = new List <Hl7.Fhir.Model.Extension>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "extension"))
                        {
                            result.Extension.Add(ExtensionParser.ParseExtension(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    // Parse element language
                    else if (ParserUtils.IsAtFhirElement(reader, "language"))
                    {
                        result.Language = CodeParser.ParseCode(reader, errors);
                    }

                    // Parse element text
                    else if (ParserUtils.IsAtFhirElement(reader, "text"))
                    {
                        result.Text = NarrativeParser.ParseNarrative(reader, errors);
                    }

                    // Parse element contained
                    else if (ParserUtils.IsAtFhirElement(reader, "contained"))
                    {
                        result.Contained = new List <Hl7.Fhir.Model.Resource>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "contained"))
                        {
                            result.Contained.Add(ParserUtils.ParseContainedResource(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    // Parse element _id
                    else if (ParserUtils.IsAtFhirElement(reader, "_id"))
                    {
                        result.LocalId = Id.Parse(reader.ReadPrimitiveContents("id"));
                    }

                    // Parse element title
                    else if (ParserUtils.IsAtFhirElement(reader, "title"))
                    {
                        result.Title = FhirStringParser.ParseFhirString(reader, errors);
                    }

                    // Parse element type
                    else if (ParserUtils.IsAtFhirElement(reader, "type"))
                    {
                        result.Type = CodeParser.ParseCode <Hl7.Fhir.Model.Protocol.ProtocolType>(reader, errors);
                    }

                    // Parse element status
                    else if (ParserUtils.IsAtFhirElement(reader, "status"))
                    {
                        result.Status = CodeParser.ParseCode <Hl7.Fhir.Model.Protocol.ProtocolStatus>(reader, errors);
                    }

                    // Parse element author
                    else if (ParserUtils.IsAtFhirElement(reader, "author"))
                    {
                        result.Author = ResourceReferenceParser.ParseResourceReference(reader, errors);
                    }

                    // Parse element purpose
                    else if (ParserUtils.IsAtFhirElement(reader, "purpose"))
                    {
                        result.Purpose = FhirStringParser.ParseFhirString(reader, errors);
                    }

                    // Parse element subject
                    else if (ParserUtils.IsAtFhirElement(reader, "subject"))
                    {
                        result.Subject = ResourceReferenceParser.ParseResourceReference(reader, errors);
                    }

                    // Parse element group
                    else if (ParserUtils.IsAtFhirElement(reader, "group"))
                    {
                        result.Group = ResourceReferenceParser.ParseResourceReference(reader, errors);
                    }

                    // Parse element step
                    else if (ParserUtils.IsAtFhirElement(reader, "step"))
                    {
                        result.Step = new List <Hl7.Fhir.Model.Protocol.ProtocolStepComponent>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "step"))
                        {
                            result.Step.Add(ProtocolParser.ParseProtocolStepComponent(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    else
                    {
                        errors.Add(String.Format("Encountered unknown element {0} while parsing {1}", reader.CurrentElementName, currentElementName), reader);
                        reader.SkipSubElementsFor(currentElementName);
                        result = null;
                    }
                }

                reader.LeaveElement();
            }
            catch (Exception ex)
            {
                errors.Add(ex.Message, reader);
            }
            return(result);
        }
        /// <summary>
        /// Parse ProtocolStepNextComponent
        /// </summary>
        public static Hl7.Fhir.Model.Protocol.ProtocolStepNextComponent ParseProtocolStepNextComponent(IFhirReader reader, ErrorList errors, Hl7.Fhir.Model.Protocol.ProtocolStepNextComponent existingInstance = null)
        {
            Hl7.Fhir.Model.Protocol.ProtocolStepNextComponent result = existingInstance != null ? existingInstance : new Hl7.Fhir.Model.Protocol.ProtocolStepNextComponent();
            try
            {
                string currentElementName = reader.CurrentElementName;
                reader.EnterElement();

                while (reader.HasMoreElements())
                {
                    // Parse element extension
                    if (ParserUtils.IsAtFhirElement(reader, "extension"))
                    {
                        result.Extension = new List <Hl7.Fhir.Model.Extension>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "extension"))
                        {
                            result.Extension.Add(ExtensionParser.ParseExtension(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    // Parse element _id
                    else if (ParserUtils.IsAtFhirElement(reader, "_id"))
                    {
                        result.LocalId = Id.Parse(reader.ReadPrimitiveContents("id"));
                    }

                    // Parse element description
                    else if (ParserUtils.IsAtFhirElement(reader, "description"))
                    {
                        result.Description = FhirStringParser.ParseFhirString(reader, errors);
                    }

                    // Parse element id
                    else if (ParserUtils.IsAtFhirElement(reader, "id"))
                    {
                        result.Id = IdRefParser.ParseIdRef(reader, errors);
                    }

                    // Parse element condition
                    else if (ParserUtils.IsAtFhirElement(reader, "condition"))
                    {
                        result.Condition = ProtocolParser.ParseProtocolStepPreconditionComponent(reader, errors);
                    }

                    else
                    {
                        errors.Add(String.Format("Encountered unknown element {0} while parsing {1}", reader.CurrentElementName, currentElementName), reader);
                        reader.SkipSubElementsFor(currentElementName);
                        result = null;
                    }
                }

                reader.LeaveElement();
            }
            catch (Exception ex)
            {
                errors.Add(ex.Message, reader);
            }
            return(result);
        }
        /// <summary>
        /// Parse ProtocolStepActivityComponent
        /// </summary>
        public static Hl7.Fhir.Model.Protocol.ProtocolStepActivityComponent ParseProtocolStepActivityComponent(IFhirReader reader, ErrorList errors, Hl7.Fhir.Model.Protocol.ProtocolStepActivityComponent existingInstance = null)
        {
            Hl7.Fhir.Model.Protocol.ProtocolStepActivityComponent result = existingInstance != null ? existingInstance : new Hl7.Fhir.Model.Protocol.ProtocolStepActivityComponent();
            try
            {
                string currentElementName = reader.CurrentElementName;
                reader.EnterElement();

                while (reader.HasMoreElements())
                {
                    // Parse element extension
                    if (ParserUtils.IsAtFhirElement(reader, "extension"))
                    {
                        result.Extension = new List <Hl7.Fhir.Model.Extension>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "extension"))
                        {
                            result.Extension.Add(ExtensionParser.ParseExtension(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    // Parse element _id
                    else if (ParserUtils.IsAtFhirElement(reader, "_id"))
                    {
                        result.LocalId = Id.Parse(reader.ReadPrimitiveContents("id"));
                    }

                    // Parse element alternative
                    else if (ParserUtils.IsAtFhirElement(reader, "alternative"))
                    {
                        result.Alternative = new List <Hl7.Fhir.Model.IdRef>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "alternative"))
                        {
                            result.Alternative.Add(IdRefParser.ParseIdRef(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    // Parse element component
                    else if (ParserUtils.IsAtFhirElement(reader, "component"))
                    {
                        result.Component = new List <Hl7.Fhir.Model.Protocol.ProtocolStepActivityComponentComponent>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "component"))
                        {
                            result.Component.Add(ProtocolParser.ParseProtocolStepActivityComponentComponent(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    // Parse element following
                    else if (ParserUtils.IsAtFhirElement(reader, "following"))
                    {
                        result.Following = new List <Hl7.Fhir.Model.IdRef>();
                        reader.EnterArray();

                        while (ParserUtils.IsAtArrayElement(reader, "following"))
                        {
                            result.Following.Add(IdRefParser.ParseIdRef(reader, errors));
                        }

                        reader.LeaveArray();
                    }

                    // Parse element wait
                    else if (ParserUtils.IsAtFhirElement(reader, "wait"))
                    {
                        result.Wait = DurationParser.ParseDuration(reader, errors);
                    }

                    // Parse element detail
                    else if (ParserUtils.IsAtFhirElement(reader, "detail"))
                    {
                        result.Detail = ActivityDefinitionParser.ParseActivityDefinition(reader, errors);
                    }

                    else
                    {
                        errors.Add(String.Format("Encountered unknown element {0} while parsing {1}", reader.CurrentElementName, currentElementName), reader);
                        reader.SkipSubElementsFor(currentElementName);
                        result = null;
                    }
                }

                reader.LeaveElement();
            }
            catch (Exception ex)
            {
                errors.Add(ex.Message, reader);
            }
            return(result);
        }