From 5adb5a0ec3b6158da30bc1ca20ea89fbeb6f7691 Mon Sep 17 00:00:00 2001
From: Emmanuel Bruno <emmanuel.bruno@univ-tln.fr>
Date: Thu, 18 Mar 2021 18:15:55 +0100
Subject: [PATCH] produces links header only when not empty.
---
.../security/filter/response/PaginationLinkFilter.java | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/main/java/fr/univtln/bruno/samples/jaxrs/security/filter/response/PaginationLinkFilter.java b/src/main/java/fr/univtln/bruno/samples/jaxrs/security/filter/response/PaginationLinkFilter.java
index 50fe23b..3ca3ff7 100644
--- a/src/main/java/fr/univtln/bruno/samples/jaxrs/security/filter/response/PaginationLinkFilter.java
+++ b/src/main/java/fr/univtln/bruno/samples/jaxrs/security/filter/response/PaginationLinkFilter.java
@@ -13,7 +13,6 @@ import lombok.extern.java.Log;
import java.util.ArrayList;
import java.util.List;
-import java.util.stream.Collector;
import java.util.stream.Collectors;
@Provider
@@ -40,7 +39,7 @@ public class PaginationLinkFilter implements ContainerResponseFilter {
UriInfo uriInfo = requestContext.getUriInfo();
Page entity = (Page) responseContext.getEntity();
- if (entity.getPageNumber()>entity.getPageTotal())
+ if (entity.getPageNumber() > entity.getPageTotal())
throw new WebApplicationException(Response.Status.NOT_FOUND);
//We replace the entity by the content of the page (we remove the envelope).
@@ -76,7 +75,8 @@ public class PaginationLinkFilter implements ContainerResponseFilter {
.build());
}
- responseContext.getHeaders().add("Link", linksList.stream().map(l->l.toString()).collect(Collectors.joining(",")));
+ if (!linksList.isEmpty())
+ responseContext.getHeaders().add("Link", linksList.stream().map(l -> l.toString()).collect(Collectors.joining(",")));
//We add pagination metadata in the header
responseContext.getHeaders().add(JAXRS_SAMPLE_TOTAL_COUNT, entity.getElementTotal());
responseContext.getHeaders().add(JAXRS_SAMPLE_PAGE_COUNT, entity.getPageTotal());
--
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