public List<JobPost> GetJobs(FilterBag filterbag, int page, int resultsPerPage)
{
// Short circuit if there are no filters specified
if ( filterbag.IsEmpty() ) { return new List<JobPost>(); }
// Will try and build an Indeed API request from the given set of filters. Catches and logs any problems
string request = "";
try
{
// Build the request based on filters
request = builder.buildQuery(filterbag, page, resultsPerPage);
// If the request comes back empty, something bad happened
if (String.IsNullOrEmpty(request)) { throw new ArgumentException(); }
}
// The built request is, for some reason, empty or null. Return empty results list
catch (ArgumentException argex)
{
Logging.JobSaltLogger.Instance.log("(Indeed) Error in IndeedQueryBuilder caused API request string to be empty or null.");
Logging.JobSaltLogger.Instance.log(filterbag.ToString() + "\n Page=" + page + "\n resultsPerPage=" + resultsPerPage);
return new List<JobPost>();
}
// An unknown exception was thrown when trying to build the request. The request string
// is empty now, so there's no point trying to continue (since it will return an empty list anyway)
catch (Exception e)
{
Logging.JobSaltLogger.Instance.log("(Indeed) Exception caught while building Indeed Query: " + e.Message);
Logging.JobSaltLogger.Instance.log(filterbag.ToString() + "\n Page=" + page + "\n resultsPerPage=" + resultsPerPage);
return new List<JobPost>();
}
IndeedResult iResult; // Raw Indeed results
using (var client = new WebClient())
{
string json = client.DownloadString(request); // Issues a Get to the Indeed API with the request string
try
{
var serializer = new JavaScriptSerializer();
iResult = serializer.Deserialize<IndeedResult>(json); // Parses JSON result into C# Indeed data object
// The raw Indeed results are null... something very bad happened!
if (null == iResult) { throw new ArgumentException();}
// This is used to make sure that if a higher page is requested than Indeed has,
// then the last several posts don't keep getting returned (fixed bug)
int startpost = resultsPerPage * page;
return IndeedResultToJobPosts(iResult, startpost); // Parses C# Indeed data object into a list of JobPosts
}
// iResult is null, which means something went very wrong. Return an empty job list
catch (ArgumentException argex)
{
Logging.JobSaltLogger.Instance.log("(Indeed) An error occured when parsing Indeed JSON into iResult, resulting in iResult being null: " + argex.Message);
Logging.JobSaltLogger.Instance.log("(Indeed) JSON: \n" + json);
return new List<JobPost>();
}
// An unknown exception occured
catch (Exception e)
{
Logging.JobSaltLogger.Instance.log("(Indeed) An exception occured when parsing Indeed JSON into iResult: " + e.Message);
Logging.JobSaltLogger.Instance.log("(Indeed) JSON: \n" + json);
return new List<JobPost>();
}
}
}
