#13771 - Add Epipulse export functionality for Measles disease

Author: roldy

sormas-api/src/main/java/de/symeda/sormas/api/epipulse/EpipulseLaboratoryMapper.java

@@ -123,9 +123,13 @@ public static String normalizeGenotypeForEpipulse(String genotypeText) {
 
 		String normalized = genotypeText.trim().toUpperCase();
 
-		// If already in MEASV_ format, return as-is
+		// If already in MEASV_ format, validate the suffix and return if valid
 		if (normalized.startsWith("MEASV_")) {
-			return normalized;
+			String suffix = normalized.substring(6); // Extract part after "MEASV_"
+			if (isValidMeaslesGenotype(suffix)) {
+				return normalized;
+			}
+			return null;
 		}
 
 		// Try to parse formats like "A", "B1", "D10", etc. and add MEASV_ prefix
@@ -137,14 +141,28 @@ public static String normalizeGenotypeForEpipulse(String genotypeText) {
 		// Try to extract genotype from common formats with delimiters
 		// Matches patterns like "MeV-A", "Genotype-B1", "MV/A", "MEASLES-D4"
 		String extracted = extractGenotypeFromDelimitedFormat(normalized);
-		if (extracted != null) {
+		if (isValidMeaslesGenotype(extracted)) {
 			return "MEASV_" + extracted;
 		}
 
 		// Return null for ambiguous or unparseable inputs
 		return null;
 	}
 
+	/**
+	 * Validates if a genotype code matches the known measles genotype pattern.
+	 *
+	 * @param genotype
+	 *            Genotype code without MEASV_ prefix (e.g., "A", "B1", "D10")
+	 * @return true if the genotype is a valid measles genotype, false otherwise
+	 */
+	private static boolean isValidMeaslesGenotype(String genotype) {
+		if (genotype == null) {
+			return false;
+		}
+		return genotype.matches("^(A|B[1-3]|C[1-2]|D(1[0-1]|[1-9])|E|F|G[1-3]|H[1-2])$");
+	}
+
 	/**
 	 * Extracts genotype code from delimited formats like "MeV-A", "Genotype B1", etc.
 	 * Uses strict pattern matching to avoid false positives.

sormas-backend/src/main/java/de/symeda/sormas/backend/epipulse/EpipulseCsvExportOrchestrator.java

@@ -76,6 +76,8 @@ public class EpipulseCsvExportOrchestrator {
 	public void orchestrateExport(String uuid, ExportFunction exportFunction, CsvExportStrategy csvStrategy) {
 
 		CSVWriter writer = null;
+		FileOutputStream fos = null;
+		OutputStreamWriter osw = null;
 		EpipulseExport epipulseExport = null;
 		EpipulseExportStatus exportStatus = EpipulseExportStatus.FAILED;
 		boolean shouldUpdateStatus = false;
@@ -117,10 +119,10 @@ public void orchestrateExport(String uuid, ExportFunction exportFunction, CsvExp
 			EpipulseDiseaseExportResult exportResult = exportFunction.execute(exportDto, serverCountryCode, serverCountryName);
 			totalRecords = exportResult.getExportEntryList().size();
 
-			// Setup CSV writer
-			writer = CSVUtils.createCSVWriter(
-				new OutputStreamWriter(new FileOutputStream(exportFilePath), StandardCharsets.UTF_8),
-				configFacadeEjb.getCsvSeparator());
+			// Setup CSV writer with explicit stream management
+			fos = new FileOutputStream(exportFilePath);
+			osw = new OutputStreamWriter(fos, StandardCharsets.UTF_8);
+			writer = CSVUtils.createCSVWriter(osw, configFacadeEjb.getCsvSeparator());
 
 			// Build column names using strategy
 			List<String> columnNames = csvStrategy.buildColumnNames(exportResult);
@@ -140,14 +142,28 @@ public void orchestrateExport(String uuid, ExportFunction exportFunction, CsvExp
 			exportStatus = EpipulseExportStatus.FAILED;
 			logger.error("Error during export with uuid " + uuid + ": " + e.getMessage(), e);
 		} finally {
-			// Close writer
+			// Close resources in reverse order
 			if (writer != null) {
 				try {
 					writer.close();
 				} catch (Exception e) {
 					logger.error("CRITICAL: Failed to close CSVWriter for uuid " + uuid + ": " + e.getMessage(), e);
 				}
 			}
+			if (osw != null) {
+				try {
+					osw.close();
+				} catch (Exception e) {
+					logger.error("CRITICAL: Failed to close OutputStreamWriter for uuid " + uuid + ": " + e.getMessage(), e);
+				}
+			}
+			if (fos != null) {
+				try {
+					fos.close();
+				} catch (Exception e) {
+					logger.error("CRITICAL: Failed to close FileOutputStream for uuid " + uuid + ": " + e.getMessage(), e);
+				}
+			}
 
 			// Calculate file size after writer is closed
 			if (exportFilePath != null && exportStatus == EpipulseExportStatus.COMPLETED) {