more hal+json optimisation

Signed-off-by: Peter Siegmund <developer@mars3142.org>

src/main/java/dev/mars3142/fhq/timezone_service/timezone/controllers/TimezoneController.java

@@ -1,5 +1,6 @@
 package dev.mars3142.fhq.timezone_service.timezone.controllers;
 
+import static org.springframework.beans.support.PagedListHolder.DEFAULT_PAGE_SIZE;
 import static org.springframework.hateoas.server.mvc.WebMvcLinkBuilder.linkTo;
 
 import dev.mars3142.fhq.timezone_service.timezone.domain.model.response.LocationResponse;
@@ -7,6 +8,7 @@ import dev.mars3142.fhq.timezone_service.timezone.domain.model.response.Timezone
 import dev.mars3142.fhq.timezone_service.timezone.service.TimezoneService;
 import lombok.RequiredArgsConstructor;
 import lombok.val;
+import org.springdoc.core.converters.models.Pageable;
 import org.springframework.http.HttpStatus;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.PathVariable;
@@ -25,8 +27,8 @@ public class TimezoneController {
   @GetMapping
   @ResponseStatus(HttpStatus.OK)
   public TimezoneResponse getTimeZone(
-      @RequestHeader(value = "X-Forwarded-For", defaultValue = "127.0.0.1") String header) {
+      @RequestHeader(value = "X-Forwarded-For", defaultValue = "127.0.0.1") String header_ip) {
-    val clientIp = header.split(",")[0];
+    val clientIp = header_ip.split(",")[0];
     val ip = timeZoneService.getExternalIp(clientIp);
     val timezoneInfo = timeZoneService.getTimeZoneInfoByIp(ip);
     val posix = timeZoneService.getPosixTimeZone(timezoneInfo.timezone());
@@ -41,7 +43,10 @@ public class TimezoneController {
   @ResponseStatus(HttpStatus.OK)
   public LocationResponse getLocations(@PathVariable String area) {
     val locations = timeZoneService.getLocations(area);
-    return new LocationResponse(locations.size(), locations);
+    val result = new LocationResponse();
+    result.setLocations(locations);
+    result.add(linkTo(TimezoneController.class).slash(area).withSelfRel());
+    return result;
   }
 
   @GetMapping("{area}/{location}")

src/main/java/dev/mars3142/fhq/timezone_service/timezone/domain/model/response/LocationResponse.java

@@ -1,7 +1,17 @@
 package dev.mars3142.fhq.timezone_service.timezone.domain.model.response;
 
 import java.util.List;
+import lombok.Getter;
+import org.springframework.hateoas.RepresentationModel;
 
-public record LocationResponse(int count, List<String> locations) {
+@Getter
+public class LocationResponse extends RepresentationModel<LocationResponse> {
 
+  private int count;
+  private List<String> locations;
+
+  public void setLocations(List<String> locations) {
+    this.count = locations.size();
+    this.locations = locations;
+  }
 }

src/main/java/dev/mars3142/fhq/timezone_service/timezone/domain/model/response/TimezoneResponse.java

@@ -1,13 +1,11 @@
 package dev.mars3142.fhq.timezone_service.timezone.domain.model.response;
 
 import lombok.Getter;
-import lombok.RequiredArgsConstructor;
 import lombok.Setter;
 import org.springframework.hateoas.RepresentationModel;
 
 @Getter
 @Setter
-@RequiredArgsConstructor
 public class TimezoneResponse extends RepresentationModel<TimezoneResponse> {
 
   private String timezone;