feat: upgrade dependencies

Author: rhajek

client-reactive/src/main/java/com/influxdb/client/reactive/InfluxDBClientReactive.java

@@ -27,7 +27,7 @@
 import com.influxdb.client.InfluxDBClient;
 import com.influxdb.client.domain.HealthCheck;
 
-import io.reactivex.rxjava3.core.Single;
+import org.reactivestreams.Publisher;
 
 /**
  *  The reference RxJava client for the <a href="https://github.com/influxdata/influxdb">InfluxDB 2.0</a>
@@ -68,7 +68,7 @@ public interface InfluxDBClientReactive extends AutoCloseable {
      * @return health of an instance
      */
     @Nonnull
-    Single<HealthCheck> health();
+    Publisher<HealthCheck> health();
 
     /**
      * @return the {@link LogLevel} that is used for logging requests and responses

client-reactive/src/main/java/com/influxdb/client/reactive/internal/InfluxDBClientReactiveImpl.java

@@ -36,7 +36,8 @@
 import com.influxdb.client.service.WriteService;
 import com.influxdb.utils.Arguments;
 
-import io.reactivex.rxjava3.core.Single;
+import io.reactivex.rxjava3.core.Flowable;
+import org.reactivestreams.Publisher;
 import retrofit2.adapter.rxjava3.RxJava3CallAdapterFactory;
 
 /**
@@ -72,9 +73,9 @@ public WriteReactiveApi getWriteReactiveApi(@Nonnull final WriteOptionsReactive
 
     @Nonnull
     @Override
-    public Single<HealthCheck> health() {
+    public Publisher<HealthCheck> health() {
 
-        return Single.fromCallable(() -> health(healthService.getHealth(null)));
+        return Flowable.fromCallable(() -> health(healthService.getHealth(null)));
     }
 
     @Nonnull

client-reactive/src/test/java/com/influxdb/client/reactive/ITInfluxDBReactiveClient.java

@@ -29,6 +29,7 @@
 import org.junit.jupiter.api.Test;
 import org.junit.platform.runner.JUnitPlatform;
 import org.junit.runner.RunWith;
+import org.reactivestreams.Publisher;
 
 /**
  * @author Jakub Bednar (bednar@github) (20/11/2018 08:06)
@@ -51,9 +52,9 @@ void writeClient() {
     @Test
     void health() {
 
-        Single<HealthCheck> check = influxDBClient.health();
+        Publisher<HealthCheck> check = influxDBClient.health();
 
-        check
+        Single.fromPublisher(check)
                 .test()
                 .assertNoErrors()
                 .assertValue(it -> {
@@ -67,22 +68,22 @@ void health() {
     }
 
     @Test
-    void healthNotRunningInstance() throws Exception {
+    void healthNotRunningInstance() {
 
         InfluxDBClientReactive clientNotRunning = InfluxDBClientReactiveFactory.create("http://localhost:8099");
-        Single<HealthCheck> health = clientNotRunning.health();
+        Publisher<HealthCheck> health = clientNotRunning.health();
 
-        health
-                .test()
-                .assertNoErrors()
-                .assertValue(it -> {
+        Single.fromPublisher(health)
+            .test()
+            .assertNoErrors()
+            .assertValue(it -> {
 
-                    Assertions.assertThat(it).isNotNull();
-                    Assertions.assertThat(it.getStatus()).isEqualTo(HealthCheck.StatusEnum.FAIL);
-                    Assertions.assertThat(it.getMessage()).startsWith("Failed to connect to");
+                Assertions.assertThat(it).isNotNull();
+                Assertions.assertThat(it.getStatus()).isEqualTo(HealthCheck.StatusEnum.FAIL);
+                Assertions.assertThat(it.getMessage()).startsWith("Failed to connect to");
 
-                    return true;
-                });
+                return true;
+            });
 
         clientNotRunning.close();
     }