#1134 - Forward global codec settings to decoders in WebClientConfigurer.

We now use new API introduced in Spring Framework 5.2.2 to forward the global configuration settings into the hypermedia decoders we register.

src/main/java/org/springframework/hateoas/config/WebClientConfigurer.java

@@ -25,6 +25,7 @@ import org.springframework.core.codec.Encoder;
 import org.springframework.hateoas.config.EnableHypermediaSupport.HypermediaType;
 import org.springframework.http.codec.ClientCodecConfigurer;
 import org.springframework.http.codec.CodecConfigurer.CustomCodecs;
+import org.springframework.http.codec.json.AbstractJackson2Decoder;
 import org.springframework.http.codec.json.Jackson2JsonDecoder;
 import org.springframework.http.codec.json.Jackson2JsonEncoder;
 import org.springframework.util.Assert;
@@ -59,7 +60,7 @@ public class WebClientConfigurer {
 		Assert.notNull(hypermediaTypes, "HypermediaMappingInformations must not be null!");
 
 		List<Encoder<?>> encoders = new ArrayList<>();
-		List<Decoder<?>> decoders = new ArrayList<>();
+		List<AbstractJackson2Decoder> decoders = new ArrayList<>();
 
 		hypermediaTypes.forEach(hypermedia -> {
 
@@ -75,7 +76,9 @@ public class WebClientConfigurer {
 			CustomCodecs codecs = it.customCodecs();
 
 			encoders.forEach(codecs::encoder);
-			decoders.forEach(codecs::decoder);
+			decoders.stream() //
+					.peek(applyDefaultConfiguration(codecs)) //
+					.forEach(codecs::decoder);
 		};
 	}
 
@@ -103,4 +106,23 @@ public class WebClientConfigurer {
 				.exchangeStrategies(it -> it.codecs(configurer)) //
 				.build();
 	}
+
+	/**
+	 * Returns a {@link Consumer} of {@link AbstractJackson2Decoder} that will copy the default configuration of the given
+	 * {@link CustomCodecs} to a decoder.
+	 *
+	 * @param codecs must not be {@literal null}.
+	 * @return
+	 */
+	private static Consumer<AbstractJackson2Decoder> applyDefaultConfiguration(CustomCodecs codecs) {
+
+		return decoder -> codecs.withDefaultCodecConfig(config -> {
+
+			Integer maxInMemorySize = config.maxInMemorySize();
+
+			if (maxInMemorySize != null) {
+				decoder.setMaxInMemorySize(maxInMemorySize);
+			}
+		});
+	}
 }