Merge pull request #16389 from enesacikoglu

* pr/16389:
  Polish "Add support for Couchbase's role-based access"
  Add support for Couchbase's role-based access

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/couchbase/CouchbaseConfiguration.java

@@ -57,7 +57,13 @@ public class CouchbaseConfiguration {
 	@Bean
 	@Primary
 	public Cluster couchbaseCluster() {
-		return CouchbaseCluster.create(couchbaseEnvironment(), determineBootstrapHosts());
+		CouchbaseCluster couchbaseCluster = CouchbaseCluster
+				.create(couchbaseEnvironment(), determineBootstrapHosts());
+		if (isRoleBasedAccessControlEnabled()) {
+			return couchbaseCluster.authenticate(this.properties.getUsername(),
+					this.properties.getPassword());
+		}
+		return couchbaseCluster;
 	}
 
 	/**
@@ -79,10 +85,18 @@ public class CouchbaseConfiguration {
 	@Bean
 	@Primary
 	public Bucket couchbaseClient() {
+		if (isRoleBasedAccessControlEnabled()) {
+			return couchbaseCluster().openBucket(this.properties.getBucket().getName());
+		}
 		return couchbaseCluster().openBucket(this.properties.getBucket().getName(),
 				this.properties.getBucket().getPassword());
 	}
 
+	private boolean isRoleBasedAccessControlEnabled() {
+		return this.properties.getUsername() != null
+				&& this.properties.getPassword() != null;
+	}
+
 	/**
 	 * Initialize an environment builder based on the specified settings.
 	 * @param properties the couchbase properties to use

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/couchbase/CouchbaseProperties.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 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.
@@ -38,6 +38,16 @@ public class CouchbaseProperties {
 	 */
 	private List<String> bootstrapHosts;
 
+	/**
+	 * Cluster username when using role based access.
+	 */
+	private String username;
+
+	/**
+	 * Cluster password when using role based access.
+	 */
+	private String password;
+
 	private final Bucket bucket = new Bucket();
 
 	private final Env env = new Env();
@@ -50,6 +60,22 @@ public class CouchbaseProperties {
 		this.bootstrapHosts = bootstrapHosts;
 	}
 
+	public String getUsername() {
+		return this.username;
+	}
+
+	public void setUsername(String username) {
+		this.username = username;
+	}
+
+	public String getPassword() {
+		return this.password;
+	}
+
+	public void setPassword(String password) {
+		this.password = password;
+	}
+
 	public Bucket getBucket() {
 		return this.bucket;
 	}