This is an interesting problem, and I will do my best to explain. If you have any questions, please ask.
I have written a WCF service that is suppose to communicate with a JAVA client. This service was created via contract first from a WSDL. Now, according to the WCF test client everything works, even testing on a PHP client works as well. But when it comes to the Java client, the request messages and subsequent response messages fail to return: I get a null object SOAP fault. Here is were I think the problem lies:
According to the XSD and WSDL, I have a DateTime value that I am suppose to take in. This dateTime value from the client is of form: 2012-01-01T12:00:00.00Z. Unfortunately, this input is not valid with the built in .NET datetime. So, to get around this, I changed my code to take in a string datatype, convert that string to a Datetime to send it to the database, get a response from the database in that dateTime and convert it back to a string for the response to return a value that is like the one that was inputted.
I built a logger to check to see if the messages were being sent to and from my wcf service. From that, I have identified that messages from the client were not being received. My only guess is that it is because of the datetime issue.
Is there a way to take in a dateTime datatype in the format: 2012-01-01T12:00:00.000Z? If i can, then that will mean that the request will match my datatype and maybe it will work.
Here is some code:
public partial class findSeatsRequest
{
[MessageBodyMemberAttribute(Namespace="http://soa.cs.uwf.edu/airlineData", Order=0, Name="departAirport")]
public string DepartAirport;
[MessageBodyMemberAttribute(Namespace="http://soa.cs.uwf.edu/airlineData", Order=1, Name="arriveAirport")]
public string ArriveAirport;
[MessageBodyMemberAttribute(Namespace="http://soa.cs.uwf.edu/airlineMessage", Order=2, Name="earliestDepartTime")]
public string EarliestDepartTime;
[MessageBodyMemberAttribute(Namespace="http://soa.cs.uwf.edu/airlineMessage", Order=3, Name="latestDepartTime")]
public string LatestDepartTime;
[MessageBodyMemberAttribute(Namespace="http://soa.cs.uwf.edu/airlineMessage", Order=4, Name="minimumSeatsAvailable")]
public int MinimumSeatsAvailable;
[MessageBodyMemberAttribute(Namespace="http://soa.cs.uwf.edu/airlineMessage", Order=5, Name="maximumFlightsToReturn")]
public int MaximumFlightsToReturn;
public findSeatsRequest()
{
}
public findSeatsRequest(string departAirport, string arriveAirport, string earliestDepartTime, string latestDepartTime, int minimumSeatsAvailable, int maximumFlightsToReturn)
{
this.DepartAirport = departAirport;
this.ArriveAirport = arriveAirport;
this.EarliestDepartTime = earliestDepartTime;
this.LatestDepartTime = latestDepartTime;
this.MinimumSeatsAvailable = minimumSeatsAvailable;
this.MaximumFlightsToReturn = maximumFlightsToReturn;
}
}
public partial class findSeatsResponse
{
[MessageBodyMemberAttribute(Namespace="http://soa.cs.uwf.edu/airlineData", Order=0, Name="flight")]
[XmlElementAttribute("flight")]
public System.Collections.Generic.List<flightType> Flight;
public findSeatsResponse()
{
}
public findSeatsResponse(System.Collections.Generic.List<flightType> flight)
{
this.Flight = flight;
}
}
public virtual findSeatsResponse findSeats(findSeatsRequest request)
{
string departAirport = request.DepartAirport;
string arriveAirport = request.ArriveAirport;
string earliestDepartTime = request.EarliestDepartTime;
string latestDepartTime = request.LatestDepartTime;
int minimumSeatsAvailable = request.MinimumSeatsAvailable;
int maximumFlightsToReturn = request.MaximumFlightsToReturn;
SqlCommand cmd = null;
DataSet ds = new DataSet();
List<flightType> flight = new List<flightType>();
EventLogger log = new EventLogger();
findSeatsRequest inValue = new findSeatsRequest();
inValue.DepartAirport = departAirport;
inValue.ArriveAirport = arriveAirport;
inValue.EarliestDepartTime = earliestDepartTime;
inValue.LatestDepartTime = latestDepartTime;
inValue.MinimumSeatsAvailable = minimumSeatsAvailable;
inValue.MaximumFlightsToReturn = maximumFlightsToReturn;
string latestT = inValue.LatestDepartTime.Replace("T", " ");
string latestZ = latestT.Replace("Z", "");
DateTime _latestDepartTime = DateTime.ParseExact(latestZ, "yyyy-MM-dd HH:mm:ss.fff", CultureInfo.InvariantCulture);
string earliestT = inValue.EarliestDepartTime.Replace("T", " ");
string earliestZ = earliestT.Replace("Z", "");
DateTime _earliestDepartTime = DateTime.ParseExact(earliestZ, "yyyy-MM-dd HH:mm:ss.fff", CultureInfo.InvariantCulture);
log.WriteToDataBase(DateTime.Now, "FindSeats", 1, "This is the request: " + inValue);
//Check Maximum Flights
if (inValue.MaximumFlightsToReturn > 100 | inValue.MaximumFlightsToReturn < 0)
{
throw new FaultException(
"You cannot select more than 100 flights to return, or the maximum flights to return is negative.",
new FaultCode("OutOfRange"));
}
// Check Minimum Seats Available.
if (inValue.MinimumSeatsAvailable < 0)
{
throw new FaultException(
"You minimum seats available cannot be negative.",
new FaultCode("OutOfRange"));
}
// Check for valid Departure Airport
if (departAirport != null && departAirport != "ANY")
{
try
{
string strConn = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
SqlConnection conn = new SqlConnection(strConn);
conn.Open();
string check = "SELECT DepartAirport FROM Flight WHERE DepartAirport='" + departAirport + "'";
cmd = new SqlCommand(check, conn);
cmd.CommandText = check;
SqlDataReader depAirport;
depAirport = cmd.ExecuteReader();
if (depAirport.HasRows == false)
{
throw new FaultException(
"Invalid Airport code used.",
new FaultCode("Invalid Text Entry"));
}
}
finally
{
if (cmd != null)
cmd.Dispose();
}
}
// Check for valid Arrival Airport
if (arriveAirport != null && arriveAirport != "ANY")
{
try
{
string strConn = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
SqlConnection conn = new SqlConnection(strConn);
conn.Open();
string check = "SELECT ArriveAirport FROM Flight WHERE ArriveAirport='" + arriveAirport + "'";
cmd = new SqlCommand(check, conn);
cmd.CommandText = check;
SqlDataReader arrAirport;
arrAirport = cmd.ExecuteReader();
if (arrAirport.HasRows == false)
{
throw new FaultException(
"Invalid Airport code used.",
new FaultCode("Invalid Text Entry"));
}
}
finally
{
if (cmd != null)
cmd.Dispose();
}
}
try
{
string strConn = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
SqlConnection conn = new SqlConnection(strConn);
conn.Open();
cmd = new SqlCommand("usp_NewFindSeats", conn);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@DepartureAirport", inValue.DepartAirport));
cmd.Parameters.Add(new SqlParameter("@ArrivalAirport", inValue.ArriveAirport));
cmd.Parameters.Add(new SqlParameter("@EarliestDepTime", _earliestDepartTime));
cmd.Parameters.Add(new SqlParameter("@LatestDepTime", _latestDepartTime));
cmd.Parameters.Add(new SqlParameter("@minSeatsAvailable", inValue.MinimumSeatsAvailable));
cmd.Parameters.Add(new SqlParameter("@maxFlightsRequested", inValue.MaximumFlightsToReturn));
using (SqlDataReader sqlReader = cmd.ExecuteReader())
{
while (sqlReader.Read())
{
flightType Flight = new flightType();
Flight.FlightId = sqlReader.GetString(0);
Flight.DepartAirport = sqlReader.GetString(1);
Flight.ArriveAirport = sqlReader.GetString(2);
Flight.DepartTime = sqlReader.GetDateTime(3).ToString("yyyy-MM-ddTHH:mm:ss.fffZ");
Flight.ArriveTime = sqlReader.GetDateTime(4).ToString("yyyy-MM-ddTHH:mm:ss.fffZ");
Flight.FlightSeatsAvailable = sqlReader.GetInt32(5);
Flight.FlightSeatPriceUSD = sqlReader.GetDouble(6);
flight.Add(Flight);
}
}
For this particular problem, the issue wasn’t anything I thought it was in the beginning. Firstly, had to use WrapperNames in my C# code’s request operations and the names I used were incorrect.
Secondly, I needed to specify SOAP Body encoding which I had to do within my Interface layer.