IStorageDataAccessAgent7 Interface

Summary

Provides members for managing orphaned database records.

Syntax

C++/CLI

public interface IStorageDataAccessAgent7 : IStorageDataAccessAgent6, IStorageDataAccessAgent5, IStorageDataAccessAgent4, IStorageDataAccessAgent3, IStorageDataAccessAgent2, IStorageDataAccessAgent

public: 
   interface class IStorageDataAccessAgent7 abstract : IStorageDataAccessAgent6, IStorageDataAccessAgent5,  
    IStorageDataAccessAgent4, IStorageDataAccessAgent3, IStorageDataAccessAgent2,  
    IStorageDataAccessAgent

Remarks

The IStorageDataAccessAgent7 interface derives from these interfaces:

The functionality in the IStorageDataAccessAgent7 interface that is not a part of the derived interfaces is related to managing orphaned database records.

A production PACS Storage Server database frequent database activity (inserts, updates, deletes, queries). The inserts and deletes can result in orphaned records.

An orphaned record is a record whose foreign key value references a non-existent primary key value.

In the Medical Storage Server database, the Patient, Study, Series, and Instance tables are linked by foreign keys. This allows the tables to exhibit a one-to-many relationship:

One Patient record can have multiple corresponding Study records.
One study record can have multiple corresponding Series records.
One series record can have multiple corresponding Instance records.

As a simple example, one patient may have five instances:

1 Patient record
1 Study record
1 Series record
5 Instance records

Deleting the 5 instance records would result in the Patient, Study, and Series records being orphaned. The Patient, Study, and Series records still exist in the database, but there is no corresponding instance.

Example

This example shows how to use IStorageDataAccessAgent7 members to remove orphaned database records in several different ways.

using Leadtools.Dicom; 
using Leadtools.DicomDemos; 
using Leadtools.Medical.DataAccessLayer; 
using Leadtools.Medical.DataAccessLayer.Catalog; 
using Leadtools.Medical.Storage.DataAccessLayer; 
using Leadtools.Medical.Storage.DataAccessLayer.Configuration; 
 
 
public static IStorageDataAccessAgent7 GetStorageDataAccessAgent7() 
{ 
   // Before running this sample, follow these steps: 
   // 1. Run CSPacsDatabaseConfigurationDemo.exe to create the databases 
   // 2. Run CSPACSConfigDemo.exe to create the DICOM services 
   // 3. Set 'serviceDirectory' to the DICOM service folder 
   string serviceDirectory = @"d:\LEADTOOLS22\Bin\Dotnet4\x64\L22_PACS_SCP64"; 
   string productName = "StorageServer"; 
   string serviceName = "L22_PACS_SCP64"; 
   System.Configuration.Configuration configuration = DicomDemoSettingsManager.GetGlobalPacsAddinsConfiguration(serviceDirectory); 
 
   StorageDataAccessConfigurationView view = new StorageDataAccessConfigurationView(configuration, productName, serviceName); 
   IStorageDataAccessAgent7 agent = DataAccessFactory.GetInstance(view).CreateDataAccessAgent<IStorageDataAccessAgent7>(); 
   return agent; 
} 
 
public static void InsertDicomFile(IStorageDataAccessAgent7 agent, string filename) 
{ 
   using (DicomDataSet ds = new DicomDataSet()) 
   { 
      ds.Load(filename, DicomDataSetLoadFlags.None); 
      agent.StoreDicom(ds, filename, string.Empty, null, true, true, true, true); 
   } 
} 
 
public static void RemoveInstance(IStorageDataAccessAgent7 agent, string sopInstanceUid, bool removeOrphanedRecords) 
{ 
   ICatalogEntity instanceEntity = RegisteredEntities.GetInstanceEntity(sopInstanceUid); 
   MatchingParameterCollection mpc = new MatchingParameterCollection(); 
   MatchingParameterList mpl = new MatchingParameterList(); 
   mpl.Add(instanceEntity); 
   mpc.Add(mpl); 
 
   agent.DeleteInstance(mpc, removeOrphanedRecords); 
} 
 
public static void AddDicomImages(IStorageDataAccessAgent7 agent) 
{ 
   // Clear the database 
   agent.EmptyTable(Table.Patient); 
   agent.EmptyTable(Table.Study); 
   agent.EmptyTable(Table.Series); 
   agent.EmptyTable(Table.Instance); 
 
   // Add four DICOM Images, all the same Patient, Study, and Series 
   InsertDicomFile(agent, @"D:\LEADTOOLS22\Resources\Images\DICOM\MG\mg1.dcm"); 
   InsertDicomFile(agent, @"D:\LEADTOOLS22\Resources\Images\DICOM\MG\mg2.dcm"); 
   InsertDicomFile(agent, @"D:\LEADTOOLS22\Resources\Images\DICOM\MG\mg3.dcm"); 
   InsertDicomFile(agent, @"D:\LEADTOOLS22\Resources\Images\DICOM\MG\mg4.dcm"); 
 
   // Add another image that will not have orphans 
   InsertDicomFile(agent, @"D:\LEADTOOLS22\Resources\Images\DICOM\image2.dcm"); 
} 
 
public static void CreatePatientStudySeriesOrphan(IStorageDataAccessAgent7 agent) 
{ 
   AddDicomImages(agent); 
 
   MatchingParameterCollection mc = new MatchingParameterCollection(); 
   DataSet ds = agent.QueryPatients(mc); 
 
   // Remove the four SOPInstanceUID without removing orphans 
   bool removeOrphanedRecords = false; 
   RemoveInstance(agent, "1.2.840.114257.1.9.1245.56421.20124.5464751.12465.120.3", removeOrphanedRecords); 
   RemoveInstance(agent, "1.2.840.114257.1.9.1245.56421.52314.14567.124.2124", removeOrphanedRecords); 
   RemoveInstance(agent, "1.2.840.114257.1.9.1245.56421.52314.5647.124.2124.1", removeOrphanedRecords); 
   RemoveInstance(agent, "1.2.840.114257.1.9.1245.56421.7124.1245.1245.9542.1245", removeOrphanedRecords); 
} 
 
public static void StorageDatAccessOrphanExample() 
{ 
   try 
   { 
      DicomEngine.Startup(); 
 
      IStorageDataAccessAgent7 agent = GetStorageDataAccessAgent7(); 
 
      // This creates orphans: 
      //    1 Patient  orphan 
      //    1 Study    orphan 
      //    1 Series   orphan 
      //    1 Instance orphan 
      CreatePatientStudySeriesOrphan(agent); 
 
      // Test 1 
      // Remove all orphans in the database 
      agent.RemoveOrphanRecords(null, OrphanTables.All); 
 
      // Create the 3 orphans again 
      CreatePatientStudySeriesOrphan(agent); 
 
      // Test 2 
      // This time remove only orphan records for a particular patient 
      MatchingParameterCollection mc = new MatchingParameterCollection(); 
      MatchingParameterList mpl = new MatchingParameterList(); 
 
      string patientId = "656421"; 
      ICatalogEntity patientEntity = RegisteredEntities.GetPatientEntity(patientId); 
      mpl.Add(patientEntity); 
      mc.Add(mpl); 
 
      try 
      { 
         // Set diagnostic level to 1 to see debug messages in an application like DebugView 
         agent.DiagnosticLevel = 1; 
         agent.RemoveOrphanRecords(mc, OrphanTables.Series); 
         agent.RemoveOrphanRecords(mc, OrphanTables.Study); 
         agent.RemoveOrphanRecords(mc, OrphanTables.Patient); 
      } 
      finally 
      { 
         // Set diagnostic level back to 0 to stop showing debug messages 
         agent.DiagnosticLevel = 0; 
      } 
 
      // Test 3 
      // Add DICOM images, and then delete instances, studies, patients while removing orphans 
      AddDicomImages(agent); 
      agent.DeleteInstance(null, true); 
 
      // Test 4 
      // Add DICOM images, delete series removing all orphans. 
      AddDicomImages(agent); 
      agent.DeleteSeries(null, true); 
 
      // Test 5 
      // Add DICOM images. delete study removing all orphans. 
      AddDicomImages(agent); 
      agent.DeleteStudy(null, true); 
   } 
   finally 
   { 
      DicomEngine.Shutdown(); 
   } 
 
   Console.WriteLine("Finished"); 
}

Requirements

Target Platforms

Reference

Leadtools.Medical.Storage.DataAccessLayer Namespace

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Help Version 23.0.2024.5.1

Leadtools.Medical.Storage.DataAccessLayer Assembly

Introduction

Getting Started

Namespaces

Leadtools.Medical.Storage.DataAccessLayer Namespace

Leadtools.Medical.Storage.DataAccessLayer.Configuration Namespace

Leadtools.Medical.Storage.DataAccessLayer.Interface Namespace

Leadtools.Medical.Storage.DataAccessLayer.MatchingParameters Namespace

Assemblies