Resource Server Configurer

So far, this is a draft on what may be the Resource Server
Configuration DSL. Feedback is welcome!

Issue: spring-projects/spring-security#5226

Author: jzheaux

oauth2/oauth2-resource-server/src/main/java/org/springframework/security/config/annotation/web/configurers/oauth2/resourceserver/OAuth2ResourceServerConfigurer.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2002-2018 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.security.config.annotation.web.configurers.oauth2.resourceserver;
+
+import org.springframework.security.config.annotation.web.HttpSecurityBuilder;
+import org.springframework.security.config.annotation.web.configurers.AbstractHttpConfigurer;
+import org.springframework.security.oauth2.core.OAuth2TokenVerifier;
+import org.springframework.security.oauth2.resourceserver.web.BearerTokenResolver;
+
+public class OAuth2ResourceServerConfigurer<B extends HttpSecurityBuilder<B>> extends
+		AbstractHttpConfigurer<OAuth2ResourceServerConfigurer<B>, B> {
+
+	public OAuth2ResourceServerConfigurer<B> bearerTokenResolver(BearerTokenResolver resolver) {
+		return this;
+	}
+
+	public OAuth2ResourceServerConfigurer<B> accessTokenVerifier(OAuth2TokenVerifier... verifiers) {
+		return this;
+	}
+
+	public JwtConfigurer jwt() {
+		return null;
+	}
+
+	public class JwtConfigurer {
+		public JwtConfigurer jwkSetUrl(String location) {
+			return this;
+		}
+
+		public OAuth2ResourceServerConfigurer<B> and() {
+			return OAuth2ResourceServerConfigurer.this;
+		}
+	}
+}