Polish "Allow to customize OkHttpClient.Builder"

Closes gh-9669

spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/influx/InfluxDbAutoConfiguration.java

@@ -18,7 +18,7 @@ package org.springframework.boot.autoconfigure.influx;
 
 import okhttp3.OkHttpClient;
 import org.influxdb.InfluxDB;
-import org.influxdb.InfluxDBFactory;
+import org.influxdb.impl.InfluxDBImpl;
 
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
@@ -28,7 +28,6 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.util.StringUtils;
 
 /**
  * {@link EnableAutoConfiguration Auto-configuration} for InfluxDB.
@@ -50,29 +49,15 @@ public class InfluxDbAutoConfiguration {
 	public InfluxDbAutoConfiguration(InfluxDbProperties properties,
 			ObjectProvider<OkHttpClient.Builder> builder) {
 		this.properties = properties;
-		this.builder = builder.getIfAvailable();
+		this.builder = builder.getIfAvailable(OkHttpClient.Builder::new);
 	}
 
 	@Bean
 	@ConditionalOnMissingBean
 	@ConditionalOnProperty("spring.influx.url")
 	public InfluxDB influxDb() {
-		if (hasCredentials() && this.builder != null) {
-			return InfluxDBFactory.connect(this.properties.getUrl(),
-					this.properties.getUser(), this.properties.getUrl(), this.builder);
-		}
-		else if (hasCredentials()) {
-			return InfluxDBFactory.connect(this.properties.getUrl(),
-					this.properties.getUser(), this.properties.getPassword());
-		}
-		else if (this.builder != null) {
-			return InfluxDBFactory.connect(this.properties.getUrl(), this.builder);
-		}
-		return InfluxDBFactory.connect(this.properties.getUrl());
+		return new InfluxDBImpl(this.properties.getUrl(), this.properties.getUser(),
+				this.properties.getPassword(), this.builder);
 	}
 
-	private boolean hasCredentials() {
-		return StringUtils.hasText(this.properties.getUser())
-				&& StringUtils.hasText(this.properties.getPassword());
-	}
 }

spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/influx/InfluxDbAutoConfigurationTests.java

@@ -20,16 +20,15 @@ import java.util.concurrent.TimeUnit;
 
 import okhttp3.OkHttpClient;
 import org.influxdb.InfluxDB;
-import org.influxdb.impl.InfluxDBImpl;
 import org.junit.After;
 import org.junit.Test;
 import retrofit2.Retrofit;
 
+import org.springframework.beans.DirectFieldAccessor;
 import org.springframework.boot.test.util.TestPropertyValues;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
@@ -91,10 +90,10 @@ public class InfluxDbAutoConfigurationTests {
 
 	private int getReadTimeoutProperty() {
 		InfluxDB influxDB = this.context.getBean(InfluxDB.class);
-		Retrofit retrofit = (Retrofit) ReflectionTestUtils.getField(influxDB,
-				InfluxDBImpl.class, "retrofit");
-		OkHttpClient callFactory = (OkHttpClient) ReflectionTestUtils.getField(retrofit,
-				Retrofit.class, "callFactory");
+		Retrofit retrofit = (Retrofit) new DirectFieldAccessor(influxDB)
+				.getPropertyValue("retrofit");
+		OkHttpClient callFactory = (OkHttpClient) new DirectFieldAccessor(retrofit)
+				.getPropertyValue("callFactory");
 		return callFactory.readTimeoutMillis();
 	}