Add method chaining for AuthorizeExchangeBuilder

Fixes gh-4345

config/src/main/java/org/springframework/security/config/web/server/AuthorizeExchangeBuilder.java

@@ -63,29 +63,30 @@ public class AuthorizeExchangeBuilder extends AbstractServerWebExchangeMatcherRe
 
 	public final class Access {
 
-		public void permitAll() {
-			access( (a,e) -> Mono.just(new AuthorizationDecision(true)));
+		public AuthorizeExchangeBuilder permitAll() {
+			return access( (a,e) -> Mono.just(new AuthorizationDecision(true)));
 		}
 
-		public void denyAll() {
-			access( (a,e) -> Mono.just(new AuthorizationDecision(false)));
+		public AuthorizeExchangeBuilder denyAll() {
+			return access( (a,e) -> Mono.just(new AuthorizationDecision(false)));
 		}
 
-		public void hasRole(String role) {
-			access(AuthorityAuthorizationManager.hasRole(role));
+		public AuthorizeExchangeBuilder hasRole(String role) {
+			return access(AuthorityAuthorizationManager.hasRole(role));
 		}
 
-		public void hasAuthority(String authority) {
-			access(AuthorityAuthorizationManager.hasAuthority(authority));
+		public AuthorizeExchangeBuilder hasAuthority(String authority) {
+			return access(AuthorityAuthorizationManager.hasAuthority(authority));
 		}
 
-		public void authenticated() {
-			access(AuthenticatedAuthorizationManager.authenticated());
+		public AuthorizeExchangeBuilder authenticated() {
+			return access(AuthenticatedAuthorizationManager.authenticated());
 		}
 
-		public void access(ReactiveAuthorizationManager<AuthorizationContext> manager) {
+		public AuthorizeExchangeBuilder access(ReactiveAuthorizationManager<AuthorizationContext> manager) {
 			managerBldr.add(matcher, manager);
 			matcher = null;
+			return AuthorizeExchangeBuilder.this;
 		}
 	}
 }

samples/javaconfig/hellowebflux/src/main/java/sample/SecurityConfig.java

@@ -21,7 +21,6 @@ package sample;
 import org.springframework.context.annotation.Bean;
 import org.springframework.security.authorization.AuthorizationDecision;
 import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
-import org.springframework.security.config.web.server.AuthorizeExchangeBuilder;
 import org.springframework.security.config.web.server.HttpSecurity;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.web.server.authorization.AuthorizationContext;
@@ -39,10 +38,11 @@ public class SecurityConfig {
 	WebFilter springSecurityFilterChain(HttpSecurity http) throws Exception {
 		http.httpBasic();
 
-		AuthorizeExchangeBuilder authorize = http.authorizeExchange();
-		authorize.antMatchers("/admin/**").hasRole("ADMIN");
-		authorize.antMatchers("/users/{user}/**").access(this::currentUserMatchesPath);
-		authorize.anyExchange().authenticated();
+		http.authorizeExchange()
+			.antMatchers("/admin/**").hasRole("ADMIN")
+			.antMatchers("/users/{user}/**").access(this::currentUserMatchesPath)
+			.anyExchange().authenticated();
+
 		return http.build();
 	}
 

samples/javaconfig/hellowebfluxfn/src/main/java/sample/SecurityConfig.java

@@ -21,7 +21,6 @@ package sample;
 import org.springframework.context.annotation.Bean;
 import org.springframework.security.authorization.AuthorizationDecision;
 import org.springframework.security.config.annotation.web.reactive.EnableWebFluxSecurity;
-import org.springframework.security.config.web.server.AuthorizeExchangeBuilder;
 import org.springframework.security.config.web.server.HttpSecurity;
 import org.springframework.security.core.Authentication;
 import org.springframework.security.web.server.authorization.AuthorizationContext;
@@ -39,10 +38,11 @@ public class SecurityConfig {
 	WebFilter springSecurityFilterChain(HttpSecurity http) throws Exception {
 		http.httpBasic();
 
-		AuthorizeExchangeBuilder authorize = http.authorizeExchange();
-		authorize.antMatchers("/admin/**").hasRole("ADMIN");
-		authorize.antMatchers("/users/{user}/**").access(this::currentUserMatchesPath);
-		authorize.anyExchange().authenticated();
+		http.authorizeExchange()
+			.antMatchers("/admin/**").hasRole("ADMIN")
+			.antMatchers("/users/{user}/**").access(this::currentUserMatchesPath)
+			.anyExchange().authenticated();
+
 		return http.build();
 	}