public static void DataThread(object obj)
{
AsyncData adata = obj as AsyncData;
adata.semaphore.WaitOne();
try
{
WebRequest request = WebRequest.Create(adata.url);
WebResponse response = request.GetResponse();
using (Stream stream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream);
String responseString = reader.ReadToEnd();
if (adata.index < 0)
{
Study study = new Study();
study.study = responseString;
lock (adata.studies)
{
adata.studies.Add(study);
}
}
else
{
lock (adata.studies[adata.index].patient)
{
adata.studies[adata.index].patient = responseString;
}
}
}
response.Close();
}
catch (Exception e)
{
Log.WriteLog(e.Message);
}
adata.semaphore.Release();
}
protected string StudiesList(string host)
{
int simultaneousNum = config.GetConfigInt("simultaneousThreads", 10);
int period = 0;
try
{
period = int.Parse(Request.QueryString["period"]);
}
catch
{
}
string[] studyIDs = new string[0];
try
{
studyIDs = JArray.Parse(Study.GetStudiesIDs(host, period)).ToObject <string[]>();
}
catch
{
Log.WriteLog("Failed to get studies' IDs");
}
Semaphore semaphore = new Semaphore(simultaneousNum, simultaneousNum);
List <Study> list = new List <Study>(studyIDs.Length);
List <Thread> threads = new List <Thread>(studyIDs.Length);
foreach (string item in studyIDs)
{
try
{
AsyncData ad = new AsyncData();
ad.semaphore = semaphore;
ad.url = host + "studies/" + item;
ad.studies = list;
ad.index = -1;
Thread thread = new Thread(Study.DataThread);
threads.Add(thread);
thread.Start(ad);
}
catch (Exception e)
{
Log.WriteLog("Failed to get study " + item + ": " + e.Message);
}
}
bool allDone = false;
while (!allDone)
{
bool join = true;
foreach (Thread thread in threads)
{
join = thread.Join(30);
if (!join)
{
break;
}
}
allDone = join;
}
threads.Clear();
semaphore = new Semaphore(simultaneousNum, simultaneousNum);
threads = new List <Thread>(studyIDs.Length);
for (int i = 0; i < list.Count; i++)
{
string parent = "";
try
{
AsyncData ad = new AsyncData();
ad.semaphore = semaphore;
parent = (string)JObject.Parse(list[i].study)["ParentPatient"];
ad.url = host + "patients/" + parent;
ad.studies = list;
ad.index = i;
Thread thread = new Thread(Study.DataThread);
threads.Add(thread);
thread.Start(ad);
}
catch (Exception e)
{
Log.WriteLog("Failed to get study's parent patient " + parent + ": " + e.Message);
}
}
allDone = false;
while (!allDone)
{
bool join = true;
foreach (Thread thread in threads)
{
join = thread.Join(30);
if (!join)
{
break;
}
}
allDone = join;
}
//append description
Hashtable ht = IDDesc.Load(config.GetConfigSourceOption("dataDrive") + "\\");
try
{
for (int i = 0; i < list.Count; i++)
{
try
{
JObject jpatient = JObject.Parse(list[i].patient);
//string id = (string)jpatient["MainDicomTags"]["PatientID"];
string id = (string)jpatient["ID"];
if (ht.ContainsKey(id))
{
string escid = JsonConvert.ToString(ht[id]);
list[i].patient = list[i].patient.Insert(list[i].patient.LastIndexOf('}'), ",\"iddesc\":" + escid);
}
}
catch
{
}
}
}
catch
{
}
StringBuilder json = new StringBuilder();
json.Append("[");
if (list.Count > 0)
{
json.Append(list[0].GetJSON());
}
for (int i = 1; i < list.Count; i++)
{
json.Append("," + list[i].GetJSON());
}
json.Append("]");
return(json.ToString());
}