diff OrthancServer/Resources/Graveyard/FindRefactoringForSQLite.cpp @ 5723:b1c86368af2b find-refactoring

moved experimental code to graveyard
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 19 Jul 2024 10:19:57 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/OrthancServer/Resources/Graveyard/FindRefactoringForSQLite.cpp	Fri Jul 19 10:19:57 2024 +0200
@@ -0,0 +1,167 @@
+#if 0
+    // TODO-FIND: Remove this implementation, as it should be done by
+    // the compatibility mode implemented by "GenericFind"
+    
+    virtual void ExecuteFind(FindResponse& response,
+                             const FindRequest& request, 
+                             const std::vector<DatabaseConstraint>& normalized) ORTHANC_OVERRIDE
+    {
+#if 0
+      Compatibility::GenericFind find(*this);
+      find.Execute(response, request);
+#else
+      {
+        SQLite::Statement s(db_, SQLITE_FROM_HERE, "DROP TABLE IF EXISTS FilteredResourcesIds");
+        s.Run();
+      }
+
+      {
+
+        LookupFormatter formatter;
+
+        std::string sqlLookup;
+        LookupFormatter::Apply(sqlLookup, 
+                               formatter, 
+                               normalized, 
+                               request.GetLevel(),
+                               request.GetLabels(),
+                               request.GetLabelsConstraint(),
+                               (request.HasLimits() ? request.GetLimitsCount() : 0));  // TODO: handles since and count
+
+        {
+          // first create a temporary table that with the filtered and ordered results
+          sqlLookup = "CREATE TEMPORARY TABLE FilteredResourcesIds AS " + sqlLookup;
+
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE_DYNAMIC(sqlLookup), sqlLookup);
+          formatter.Bind(statement);
+          statement.Run();
+        }
+
+        {
+          // create the response item with the public ids only
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE, "SELECT publicId FROM FilteredResourcesIds");
+          formatter.Bind(statement);
+
+          while (statement.Step())
+          {
+            const std::string resourceId = statement.ColumnString(0);
+            response.Add(new FindResponse::Resource(request.GetLevel(), resourceId));
+          }
+        }
+
+        // request Each response content through INNER JOIN with the temporary table
+        if (request.IsRetrieveMainDicomTags())
+        {
+          // TODO-FIND: handle the case where we request tags from multiple levels
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE, 
+                                      "SELECT publicId, tagGroup, tagElement, value FROM MainDicomTags AS tags "
+                                      "  INNER JOIN FilteredResourcesIds  ON tags.id = FilteredResourcesIds.internalId");
+          formatter.Bind(statement);
+
+          while (statement.Step())
+          {
+            const std::string& resourceId = statement.ColumnString(0);
+            assert(response.HasResource(resourceId));
+            response.GetResource(resourceId).AddStringDicomTag(statement.ColumnInt(1),
+                                                               statement.ColumnInt(2),
+                                                               statement.ColumnString(3));
+          }
+        }
+
+        if (request.IsRetrieveChildrenIdentifiers())
+        {
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE, 
+                                      "SELECT filtered.publicId, childLevel.publicId AS childPublicId "
+                                      "FROM Resources as currentLevel "
+                                      "    INNER JOIN FilteredResourcesIds filtered ON filtered.internalId = currentLevel.internalId "
+                                      "    INNER JOIN Resources childLevel ON childLevel.parentId = currentLevel.internalId");
+          formatter.Bind(statement);
+
+          while (statement.Step())
+          {
+            const std::string& resourceId = statement.ColumnString(0);
+            assert(response.HasResource(resourceId));
+            response.GetResource(resourceId).AddChildIdentifier(GetChildResourceType(request.GetLevel()), statement.ColumnString(1));
+          }
+        }
+
+        if (request.IsRetrieveParentIdentifier())
+        {
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE, 
+                                      "SELECT filtered.publicId, parentLevel.publicId AS parentPublicId "
+                                      "FROM Resources as currentLevel "
+                                      "    INNER JOIN FilteredResourcesIds filtered ON filtered.internalId = currentLevel.internalId "
+                                      "    INNER JOIN Resources parentLevel ON currentLevel.parentId = parentLevel.internalId");
+
+          while (statement.Step())
+          {
+            const std::string& resourceId = statement.ColumnString(0);
+            const std::string& parentId = statement.ColumnString(1);
+            assert(response.HasResource(resourceId));
+            response.GetResource(resourceId).SetParentIdentifier(parentId);
+          }
+        }
+
+        if (request.IsRetrieveMetadata())
+        {
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE, 
+                                      "SELECT filtered.publicId, metadata.type, metadata.value "
+                                      "FROM Metadata "
+                                      "  INNER JOIN FilteredResourcesIds filtered ON filtered.internalId = Metadata.id");
+
+          while (statement.Step())
+          {
+            const std::string& resourceId = statement.ColumnString(0);
+            assert(response.HasResource(resourceId));
+            response.GetResource(resourceId).AddMetadata(static_cast<MetadataType>(statement.ColumnInt(1)),
+                                                         statement.ColumnString(2));
+          }
+        }
+
+        if (request.IsRetrieveLabels())
+        {
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE, 
+                                      "SELECT filtered.publicId, label "
+                                      "FROM Labels "
+                                      "  INNER JOIN FilteredResourcesIds filtered ON filtered.internalId = Labels.id");
+
+          while (statement.Step())
+          {
+            const std::string& resourceId = statement.ColumnString(0);
+            assert(response.HasResource(resourceId));
+            response.GetResource(resourceId).AddLabel(statement.ColumnString(1));
+          }
+        }
+
+        if (request.IsRetrieveAttachments())
+        {
+          SQLite::Statement statement(db_, SQLITE_FROM_HERE, 
+                                      "SELECT filtered.publicId, uuid, fileType, uncompressedSize, compressionType, compressedSize, "
+                                      "       uncompressedMD5, compressedMD5 "
+                                      "FROM AttachedFiles "
+                                      "  INNER JOIN FilteredResourcesIds filtered ON filtered.internalId = AttachedFiles.id");
+
+          while (statement.Step())
+          {
+            const std::string& resourceId = statement.ColumnString(0);
+            FileInfo attachment = FileInfo(statement.ColumnString(1),
+                                           static_cast<FileContentType>(statement.ColumnInt(2)),
+                                           statement.ColumnInt64(3),
+                                           statement.ColumnString(6),
+                                           static_cast<CompressionType>(statement.ColumnInt(4)),
+                                           statement.ColumnInt64(5),
+                                           statement.ColumnString(7));
+
+            assert(response.HasResource(resourceId));
+            response.GetResource(resourceId).AddAttachment(attachment);
+          };
+        }
+
+        // TODO-FIND: implement other responseContent: ResponseContent_ChildInstanceId, ResponseContent_ChildrenMetadata (later: ResponseContent_IsStable)
+
+      }
+
+#endif
+    }
+#endif
+