Import of CSV-Data and data structure

src/main/java/de/etecture/ga/service/MDServiceService.java

@@ -0,0 +1,39 @@
+package de.etecture.ga.service;
+
+import java.security.InvalidParameterException;
+
+import org.apache.commons.lang3.StringUtils;
+import org.springframework.stereotype.Service;
+import org.springframework.util.Assert;
+
+import de.etecture.ga.model.MDService;
+import de.etecture.ga.repository.MDServiceRepository;
+import lombok.AllArgsConstructor;
+
+@Service
+@AllArgsConstructor
+public class MDServiceService {
+
+	private final MDServiceRepository serviceRepository;
+
+	public MDService storeMDService(String serviceCode) {
+
+		if (StringUtils.isBlank(serviceCode))
+			throw new InvalidParameterException("serviceCode should not been empty");
+
+		MDService service = serviceRepository.findByCode(serviceCode).orElse(new MDService().code(serviceCode));
+
+		return serviceRepository.save(service);
+	}
+
+	public MDService storeMDService(MDService serviceToSafe) {
+
+		Assert.notNull(serviceToSafe, "Service must not be null");
+		Assert.notNull(serviceToSafe.code(), "Service code must not be null");
+		Assert.isTrue(serviceToSafe.duration().isPositive(), "Service duration must must be bigger then 0");
+
+		MDService service = serviceRepository.findByCode(serviceToSafe.code()).orElse(serviceToSafe);
+
+		return serviceRepository.save(service);
+	}
+}