Merge pull request #8843 from herau:neo4j-auto-index-configuration

* pr/8843:
  Polish "Support of Neo4j auto-index configuration"
  Support of Neo4j auto-index configuration

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/data/neo4j/Neo4jProperties.java

@@ -16,6 +16,7 @@
 
 package org.springframework.boot.autoconfigure.data.neo4j;
 
+import org.neo4j.ogm.config.AutoIndexMode;
 import org.neo4j.ogm.config.Configuration;
 import org.neo4j.ogm.config.Configuration.Builder;
 
@@ -31,6 +32,7 @@ import org.springframework.util.ClassUtils;
  * @author Stephane Nicoll
  * @author Michael Hunger
  * @author Vince Bickers
+ * @author Aurélien Leboulanger
  * @since 1.4.0
  */
 @ConfigurationProperties(prefix = "spring.data.neo4j")
@@ -59,6 +61,11 @@ public class Neo4jProperties implements ApplicationContextAware {
 	 */
 	private String password;
 
+	/**
+	 * Auto index mode.
+	 */
+	private AutoIndexMode autoIndex = AutoIndexMode.NONE;
+
 	private final Embedded embedded = new Embedded();
 
 	private ClassLoader classLoader = Neo4jProperties.class.getClassLoader();
@@ -87,6 +94,14 @@ public class Neo4jProperties implements ApplicationContextAware {
 		this.password = password;
 	}
 
+	public AutoIndexMode getAutoIndex() {
+		return this.autoIndex;
+	}
+
+	public void setAutoIndex(AutoIndexMode autoIndex) {
+		this.autoIndex = autoIndex;
+	}
+
 	public Embedded getEmbedded() {
 		return this.embedded;
 	}
@@ -116,6 +131,7 @@ public class Neo4jProperties implements ApplicationContextAware {
 		if (this.username != null && this.password != null) {
 			builder.credentials(this.username, this.password);
 		}
+		builder.autoIndex(this.getAutoIndex().getName());
 	}
 
 	private void configureUriWithDefaults(Builder builder) {

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/data/neo4j/Neo4jPropertiesTests.java

@@ -22,6 +22,7 @@ import java.net.URLClassLoader;
 import com.hazelcast.util.Base64;
 import org.junit.After;
 import org.junit.Test;
+import org.neo4j.ogm.config.AutoIndexMode;
 import org.neo4j.ogm.config.Configuration;
 import org.neo4j.ogm.config.Credentials;
 
@@ -106,6 +107,20 @@ public class Neo4jPropertiesTests {
 		assertCredentials(configuration, "user", "secret");
 	}
 
+	@Test
+	public void autoIndexNoneByDefault() {
+		Neo4jProperties properties = load(true);
+		Configuration configuration = properties.createConfiguration();
+		assertThat(configuration.getAutoIndex()).isEqualTo(AutoIndexMode.NONE);
+	}
+
+	@Test
+	public void autoIndexCanBeConfigured() {
+		Neo4jProperties properties = load(true, "spring.data.neo4j.auto-index=validate");
+		Configuration configuration = properties.createConfiguration();
+		assertThat(configuration.getAutoIndex()).isEqualTo(AutoIndexMode.VALIDATE);
+	}
+
 	@Test
 	public void embeddedModeDisabledUseBoltUri() {
 		Neo4jProperties properties = load(true,

spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -613,6 +613,7 @@ content into your application; rather pick only the properties that you need.
 	spring.data.redis.repositories.enabled=true # Enable Redis repositories.
 
 	# NEO4J ({sc-spring-boot-autoconfigure}/neo4j/Neo4jProperties.{sc-ext}[Neo4jProperties])
+	spring.data.neo4j.auto-index=none # Auto index mode.
 	spring.data.neo4j.embedded.enabled=true # Enable embedded mode if the embedded driver is available.
 	spring.data.neo4j.open-in-view=false # Register OpenSessionInViewInterceptor. Binds a Neo4j Session to the thread for the entire processing of the request.
 	spring.data.neo4j.password= # Login password of the server.