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Fix line endings
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@rkm
rkm committed Feb 25, 2020
1 parent 8cdc04e commit f685ef2
Showing 1 changed file with 185 additions and 185 deletions.
370 changes: 185 additions & 185 deletions src/microservices/Microservices.IdentifierMapper/Messaging/IdentifierMapperQueueConsumer.cs
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Original file line number Diff line number Diff line change
@@ -1,185 +1,185 @@
using Dicom;
using DicomTypeTranslation;
using Microservices.IdentifierMapper.Execution.Swappers;
using RabbitMQ.Client.Events;
using Smi.Common.Messages;
using Smi.Common.Messaging;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Threading;

namespace Microservices.IdentifierMapper.Messaging
{
public class IdentifierMapperQueueConsumer : Consumer
{
public bool AllowRegexMatching { get; set; }

private readonly IProducerModel _producer;
private readonly ISwapIdentifiers _swapper;

private readonly Regex _patientIdRegex = new Regex("\"00100020\":{\"vr\":\"LO\",\"Value\":\\[\"(\\d*)\"]", RegexOptions.IgnoreCase);

BlockingCollection<Tuple<DicomFileMessage,IMessageHeader,BasicDeliverEventArgs>> msgq=new BlockingCollection<Tuple<DicomFileMessage,IMessageHeader, BasicDeliverEventArgs>>();
private Thread acker;

public IdentifierMapperQueueConsumer(IProducerModel producer, ISwapIdentifiers swapper)
{
_producer = producer;
_swapper = swapper;
acker=new Thread(() =>
{
while (true)
{
List<Tuple<IMessageHeader, BasicDeliverEventArgs>> done = new List<Tuple<IMessageHeader, BasicDeliverEventArgs>>();
Tuple<DicomFileMessage, IMessageHeader, BasicDeliverEventArgs> t;
t = msgq.Take();
lock (_producer)
{
_producer.SendMessage(t.Item1, t.Item2, "");
done.Add(new Tuple<IMessageHeader, BasicDeliverEventArgs>(t.Item2, t.Item3));
while (msgq.TryTake(out t))
{
_producer.SendMessage(t.Item1, t.Item2, "");
done.Add(new Tuple<IMessageHeader, BasicDeliverEventArgs>(t.Item2, t.Item3));
}
_producer.WaitForConfirms();
foreach (var ack in done)
{
Ack(ack.Item1, ack.Item2);
}
}
}
});
acker.IsBackground = true;
acker.Start();
}

protected override void ProcessMessageImpl(IMessageHeader header, BasicDeliverEventArgs deliverArgs)
{
DicomFileMessage msg;

if (!SafeDeserializeToMessage(header, deliverArgs, out msg))
return;

string errorReason = null;
var success = false;

try
{
if (AllowRegexMatching)
{
Match match = _patientIdRegex.Match(msg.DicomDataset);

//Try to do swap using regex looking for a chi (10 digits in length)
if (match.Success)
{
string patId = match.Groups[1].Value;
if (!string.IsNullOrEmpty(patId) && patId.Trim().Length == 10)
success = SwapIdentifier(msg, patId.Trim(), out errorReason);
}
}

if (!success)
success = SwapIdentifier(msg, out errorReason);
}
catch (ApplicationException e)
{
// Catch specific exceptions we are aware of, any uncaught will bubble up to the wrapper in ProcessMessage

ErrorAndNack(header, deliverArgs, "Error while processing DicomFileMessage", e);
return;
}

if (!success)
{
Logger.Info("Could not swap identifiers for message " + header.MessageGuid + ". Reason was: " + errorReason);
ErrorAndNack(header, deliverArgs, errorReason, null);
}
else
{
// Enqueue the outgoing message. Request will be acked by the queue handling thread above.
msgq.Add(new Tuple<DicomFileMessage, IMessageHeader, BasicDeliverEventArgs>(msg, header, deliverArgs));
}
}

private bool SwapIdentifier(DicomFileMessage msg, string patientId, out string errorReason)
{
string to = _swapper.GetSubstitutionFor(patientId, out errorReason);

if (to == null)
{
errorReason = "Swapper " + _swapper + " returned null";
return false;
}

msg.DicomDataset = msg.DicomDataset.Replace(":[\"" + patientId + "\"]", ":[\"" + to + "\"]");

return true;
}

public bool SwapIdentifier(DicomFileMessage msg, out string reason)
{
DicomDataset ds;
try
{
ds = DicomTypeTranslater.DeserializeJsonToDataset(msg.DicomDataset);
}
catch (Exception e)
{
throw new ApplicationException("Failed to deserialize dataset", e);
}

if (!ds.Contains(DicomTag.PatientID))
{
reason = "Dataset did not contain PatientID";
return false;
}

var from = (string)DicomTypeTranslaterReader.GetCSharpValue(ds, DicomTag.PatientID);

if (string.IsNullOrWhiteSpace(from))
{
reason = "PatientID was blank";
return false;
}

string to = _swapper.GetSubstitutionFor(from, out reason);

if (to == null)
{
reason = "Swapper " + _swapper + " returned null";
return false;
}

// Update the JSON deserialized dicom dataset
ds.AddOrUpdate(DicomTag.PatientID, to);

string updatedJson;

try
{
updatedJson = DicomTypeTranslater.SerializeDatasetToJson(ds);
}
catch (Exception e)
{
throw new ApplicationException("Failed to serialize dataset", e);
}


// Unlikely, but should still check
if (updatedJson == null)
{
reason = "Updated json string was null";
return false;
}

// Override the message DicomDataset with the new serialized dataset
msg.DicomDataset = updatedJson;

return true;
}
}
}
using Dicom;
using DicomTypeTranslation;
using Microservices.IdentifierMapper.Execution.Swappers;
using RabbitMQ.Client.Events;
using Smi.Common.Messages;
using Smi.Common.Messaging;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using System.Threading;

namespace Microservices.IdentifierMapper.Messaging
{
public class IdentifierMapperQueueConsumer : Consumer
{
public bool AllowRegexMatching { get; set; }

private readonly IProducerModel _producer;
private readonly ISwapIdentifiers _swapper;

private readonly Regex _patientIdRegex = new Regex("\"00100020\":{\"vr\":\"LO\",\"Value\":\\[\"(\\d*)\"]", RegexOptions.IgnoreCase);

BlockingCollection<Tuple<DicomFileMessage,IMessageHeader,BasicDeliverEventArgs>> msgq=new BlockingCollection<Tuple<DicomFileMessage,IMessageHeader, BasicDeliverEventArgs>>();
private Thread acker;

public IdentifierMapperQueueConsumer(IProducerModel producer, ISwapIdentifiers swapper)
{
_producer = producer;
_swapper = swapper;
acker=new Thread(() =>
{
while (true)
{
List<Tuple<IMessageHeader, BasicDeliverEventArgs>> done = new List<Tuple<IMessageHeader, BasicDeliverEventArgs>>();
Tuple<DicomFileMessage, IMessageHeader, BasicDeliverEventArgs> t;
t = msgq.Take();
lock (_producer)
{
_producer.SendMessage(t.Item1, t.Item2, "");
done.Add(new Tuple<IMessageHeader, BasicDeliverEventArgs>(t.Item2, t.Item3));
while (msgq.TryTake(out t))
{
_producer.SendMessage(t.Item1, t.Item2, "");
done.Add(new Tuple<IMessageHeader, BasicDeliverEventArgs>(t.Item2, t.Item3));
}
_producer.WaitForConfirms();
foreach (var ack in done)
{
Ack(ack.Item1, ack.Item2);
}
}
}
});
acker.IsBackground = true;
acker.Start();
}

protected override void ProcessMessageImpl(IMessageHeader header, BasicDeliverEventArgs deliverArgs)
{
DicomFileMessage msg;

if (!SafeDeserializeToMessage(header, deliverArgs, out msg))
return;

string errorReason = null;
var success = false;

try
{
if (AllowRegexMatching)
{
Match match = _patientIdRegex.Match(msg.DicomDataset);

//Try to do swap using regex looking for a chi (10 digits in length)
if (match.Success)
{
string patId = match.Groups[1].Value;
if (!string.IsNullOrEmpty(patId) && patId.Trim().Length == 10)
success = SwapIdentifier(msg, patId.Trim(), out errorReason);
}
}

if (!success)
success = SwapIdentifier(msg, out errorReason);
}
catch (ApplicationException e)
{
// Catch specific exceptions we are aware of, any uncaught will bubble up to the wrapper in ProcessMessage

ErrorAndNack(header, deliverArgs, "Error while processing DicomFileMessage", e);
return;
}

if (!success)
{
Logger.Info("Could not swap identifiers for message " + header.MessageGuid + ". Reason was: " + errorReason);
ErrorAndNack(header, deliverArgs, errorReason, null);
}
else
{
// Enqueue the outgoing message. Request will be acked by the queue handling thread above.
msgq.Add(new Tuple<DicomFileMessage, IMessageHeader, BasicDeliverEventArgs>(msg, header, deliverArgs));
}
}

private bool SwapIdentifier(DicomFileMessage msg, string patientId, out string errorReason)
{
string to = _swapper.GetSubstitutionFor(patientId, out errorReason);

if (to == null)
{
errorReason = "Swapper " + _swapper + " returned null";
return false;
}

msg.DicomDataset = msg.DicomDataset.Replace(":[\"" + patientId + "\"]", ":[\"" + to + "\"]");

return true;
}

public bool SwapIdentifier(DicomFileMessage msg, out string reason)
{
DicomDataset ds;
try
{
ds = DicomTypeTranslater.DeserializeJsonToDataset(msg.DicomDataset);
}
catch (Exception e)
{
throw new ApplicationException("Failed to deserialize dataset", e);
}

if (!ds.Contains(DicomTag.PatientID))
{
reason = "Dataset did not contain PatientID";
return false;
}

var from = (string)DicomTypeTranslaterReader.GetCSharpValue(ds, DicomTag.PatientID);

if (string.IsNullOrWhiteSpace(from))
{
reason = "PatientID was blank";
return false;
}

string to = _swapper.GetSubstitutionFor(from, out reason);

if (to == null)
{
reason = "Swapper " + _swapper + " returned null";
return false;
}

// Update the JSON deserialized dicom dataset
ds.AddOrUpdate(DicomTag.PatientID, to);

string updatedJson;

try
{
updatedJson = DicomTypeTranslater.SerializeDatasetToJson(ds);
}
catch (Exception e)
{
throw new ApplicationException("Failed to serialize dataset", e);
}


// Unlikely, but should still check
if (updatedJson == null)
{
reason = "Updated json string was null";
return false;
}

// Override the message DicomDataset with the new serialized dataset
msg.DicomDataset = updatedJson;

return true;
}
}
}

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