refactoring

src/main/java/it/eng/dome/billing/proxy/controller/BillingController.java

@@ -23,13 +23,28 @@ public class BillingController {
 
 	@Autowired
 	protected BillingProxyService billing;
+
+	 /**
+	 * The POST /billing/previewPrice REST API is invoked to calculate the price preview (i.e., prices and taxes) of a ProcuctOrder (TMF622-v4).
+	 * 
+	 * @param orderJson The ProductOrder (TMF622-v4) as a Json string for which the prices and taxes must be calculated
+	 * @return The ProductOrder as a Json string with prices and taxes
+	 * @throws Throwable If an error occurs during the calculation of the product order's price preview
+	 */ 
 
 	@RequestMapping(value = "/pricePreview", method = RequestMethod.POST, produces = "application/json", consumes = "application/json")
 	public ResponseEntity<String> calculatePricePreview(@RequestBody String orderJson) throws Throwable {
 		logger.info("Received request to calculate price preview");
 		return billing.pricePreview(orderJson);
 	}
 
+	 /**
+     * The POST /billing/bill REST API is invoked to calculate the bill of a Product (TMF637-v4) without taxes.
+     * 
+     * @param BillingRequestDTO The DTO contains information about the Product (TMF637-v4), the TimePeriod (TMF678-v4) and the list of ProductPrice (TMF637-v4) for which the bill must be calculated.
+     * @return The list of AppliedCustomerBillingRate as a Json without taxes
+     * @throws Throwable If an error occurs during the calculation of the bill for the Product
+     */
 
 	@RequestMapping(value = "/bill", method = RequestMethod.POST, produces = "application/json", consumes = "application/json")
 	public ResponseEntity<String> calculateBill(@RequestBody BillingRequestDTO billRequestDTO) throws Throwable {
@@ -41,6 +56,13 @@ public ResponseEntity<String> calculateBill(@RequestBody BillingRequestDTO billR
 		return billing.bill(json);
 	}
 
+	 /**
+     * The POST /billing/bill REST API is invoked to calculate the bill of a Product (TMF637-v4) without taxes.
+     * 
+     * @param BillingRequestDTO The DTO contains information about the Product (TMF637-v4), the TimePeriod (TMF678-v4) and the list of ProductPrice (TMF637-v4) for which the bill must be calculated.
+     * @return The list of AppliedCustomerBillingRate as a Json without taxes
+     * @throws Throwable If an error occurs during the calculation of the bill for the Product
+     */
 	private String getBillRequestDTOtoJson(BillingRequestDTO billRequestDTO) {
 		// product
 		String productJson = billRequestDTO.getProduct().toJson();

src/main/java/it/eng/dome/billing/proxy/service/BillingProxyService.java

@@ -23,14 +23,13 @@ public class BillingProxyService implements IProxyService {
 	public String billinEngine;
 
 
-	public ResponseEntity<String> pricePreview(String appliedCustomerBillingRates) {
+	public ResponseEntity<String> previewPrice(String order) {
 		HttpHeaders headers = new HttpHeaders();
 		headers.setContentType(MediaType.APPLICATION_JSON);
-		HttpEntity<String> request = new HttpEntity<>(appliedCustomerBillingRates, headers);
+		HttpEntity<String> request = new HttpEntity<>(order, headers);
 
-		logger.debug("Payload received:\n" + appliedCustomerBillingRates);
-		//TODO replace in the future ....  /billing/pricePreview
-		ResponseEntity<String> response = restTemplate.postForEntity(billinEngine + "/price/order", request, String.class);
+		logger.debug("Payload received:\n" + order);
+		ResponseEntity<String> response = restTemplate.postForEntity(billinEngine + "/billing/previewPrice", request, String.class);
 
 		logger.debug("Headers: " + response.getHeaders().toString());
 		logger.debug("Body:\n" + response.getBody().toString());
@@ -45,4 +44,5 @@ public ResponseEntity<String> bill(String billRequest) {
 		//logger.debug("Payload received:\n" + billRequest);
 		return restTemplate.postForEntity(billinEngine + "/billing/bill", request, String.class);
 	}
+
 }

src/main/java/it/eng/dome/billing/proxy/service/IProxyService.java

@@ -4,7 +4,7 @@
 
 public interface IProxyService {
 
-	public ResponseEntity<String> pricePreview(String appliedCustomerBillingRates);
+	public ResponseEntity<String> previewPrice(String order);
 
 	public ResponseEntity<String> bill(String billRequest);