public Models.ServiceDescriptionNStatusInterMed allServices(int token)
{
string status;
Models.ServiceDescriptionNStatusInterMed serviceDescription = new Models.ServiceDescriptionNStatusInterMed();
//creating a connection with the Authenticator via static AuthenticatorAccessInterface.remoteConnection()
authenticateInterface = Models.AuthenticatorAccessInterface.remoteConnection();
//fetch result provided by the authenticator
status = authenticateInterface.validate(token);
//If token funtion return result is "validated" will return all services
if (status.Equals("validated"))
{
List <Models.ServiceDescriptionIntermed> services = new List <Models.ServiceDescriptionIntermed>();
//Read all text in appropriate json text file
String allServicesJson = File.ReadAllText(SOA_Utilities.Constants.pathForServiceReg);
//Deserialize all services in json string to List<Models.ServiceDescriptionIntermed> object
services = JsonConvert.DeserializeObject <List <Models.ServiceDescriptionIntermed> >(allServicesJson);
//assigning to object of return type
serviceDescription.Services = services;
serviceDescription.Status = "Access Guranteed!";
serviceDescription.Reason = "Validated";
return(serviceDescription);
}
//If token funtion return result is not validated return authentication error
else if (status.Equals("not validated"))//invalid token
{
serviceDescription.Reason = "Authentication Error";
serviceDescription.Status = "Denied";
return(serviceDescription);
}
//If token funtion return result is not either "not validated" or "validated" means there is a internal code error
//could be a business logic error in the in the authenticator class
else
{
serviceDescription.Reason = "Logic Error";
serviceDescription.Reason = "Authentication return error !";
return(serviceDescription);
}
}
/*
*
* This function searches for services in the registry
* @param query which is the query
* @returns Models.ServiceDescriptionNStatusInterMed which contains a list of services and the status of the function invocation
*
* References: Lab 3
* ReadAllLines and WriteAllText : https://docs.microsoft.com/en-us/dotnet/api/system.io.file.readalllines?view=net-5.0
* Uri.UnescapeDataString and EscapeDataString: https://docs.microsoft.com/en-us/dotnet/api/system.uri.unescapedatastring?view=net-5.0
* https://docs.microsoft.com/en-us/dotnet/api/system.text.regularexpressions.regex.unescape?view=net-5.0
* ASP.NET Web API Tutorial for Beginners _ ASP.NET Web API Crash Course 2020 (720p) : https://www.youtube.com/watch?v=iaeHaydhatE
* Creating A REST Webservice With C# And Visual Studio (360p) : https://www.youtube.com/watch?v=LXZnuJY0dGI
* Intro to WebAPI - One of the most powerful project types in C# (720p) : https://www.youtube.com/watch?v=vN9NRqv7xmY&t=1186s
* C# Tutorial - How to create and Parse JSON Data : https://www.youtube.com/watch?v=NX3Um9E-AY0
* Stackover flow : https://stackoverflow.com/questions/9854917/how-can-i-find-a-specific-element-in-a-listt
* Search query : https://docs.microsoft.com/en-us/powerapps/developer/data-platform/org-service/linq-query-examples
*/
public Models.ServiceDescriptionNStatusInterMed search(String query, int token)
{
string tokenStatus;
//create connection with the authenticator
authenticateInterface = Models.AuthenticatorAccessInterface.remoteConnection();
//fetch token status
tokenStatus = authenticateInterface.validate(token);
Models.ServiceDescriptionNStatusInterMed descriptionNStatusInterMed = new Models.ServiceDescriptionNStatusInterMed();
List <Models.ServiceDescriptionIntermed> serviceDescriptionsList = new List <Models.ServiceDescriptionIntermed>();
Models.ServiceDescriptionIntermed service = new Models.ServiceDescriptionIntermed();
//checking if token is "validated"
if (tokenStatus.Equals("validated"))
{
//Checking if file exists
if (File.Exists(SOA_Utilities.Constants.pathForServiceReg))
{
//Read all text and deserialise
string allServicesJSONFormat = File.ReadAllText(SOA_Utilities.Constants.pathForServiceReg);
serviceDescriptionsList = JsonConvert.DeserializeObject <List <Models.ServiceDescriptionIntermed> >(allServicesJSONFormat);
//Search query in the deserialized list and fetch it in an IEnumerable list
var fetch =
from serviceDescription in serviceDescriptionsList
//where servicedescrition name = query
where serviceDescription.name.Contains(query)
select serviceDescription;
//To list converts to a list format, assign to the model class list(this can only be done as the list is IEnumerable)
serviceDescriptionsList = fetch.ToList();
//has to be assigned to ServiceDescriptionNStatusInterMed as the return type needs both the status and the list
descriptionNStatusInterMed.Services = serviceDescriptionsList;
return(descriptionNStatusInterMed);
}
else //There are no services as no json file so return no services status
{
descriptionNStatusInterMed.Status = "No services!";
descriptionNStatusInterMed.Reason = "No JSON file!";
return(descriptionNStatusInterMed);
}
}
//if token not validated
else if (tokenStatus.Equals("not validated"))
{
descriptionNStatusInterMed.Reason = "Authentication Error";
descriptionNStatusInterMed.Status = "Denied";
return(descriptionNStatusInterMed);
}
//login error in the authenticator class
else
{
descriptionNStatusInterMed.Reason = "Logic Error";
descriptionNStatusInterMed.Status = "Terminated";
return(descriptionNStatusInterMed);
}
}
