Proposal of enhanced DMaaP API

Change-Id: Ia941489aaa3ee34c42cedd719a957ec2a2ea7181
Issue-ID: DCAEGEN2-1368
Signed-off-by: Piotr Jaszczyk <piotr.jaszczyk@nokia.com>

12 files changed, 499 insertions, 0 deletions

diff --git a/rest-services/dmaap-client/pom.xml b/rest-services/dmaap-client/pom.xml
index 52e9f0ac..bad855bd 100644
--- a/rest-services/dmaap-client/pom.xml
+++ b/rest-services/dmaap-client/pom.xml
@@ -24,6 +24,12 @@
       <version>${project.version}</version>
     </dependency>
     <dependency>
+      <groupId>org.onap.dcaegen2.services.sdk.rest.services</groupId>
+      <artifactId>model
+      </artifactId>
+      <version>${project.version}</version>
+    </dependency>
+    <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
     </dependency>
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/DmaapClientFactory.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/DmaapClientFactory.java
new file mode 100644
index 00000000..48e6f5d1
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/DmaapClientFactory.java
@@ -0,0 +1,42 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api;
+
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+public final class DmaapClientFactory {
+
+    private DmaapClientFactory() {
+    }
+
+    public static MessageRouterPublisher createMessageRouterPublisher() {
+        throw new UnsupportedOperationException("not implemented yet");
+    }
+
+    public static MessageRouterSubscriber createMessageRouterSubscriber() {
+        throw new UnsupportedOperationException("not implemented yet");
+    }
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterPublisher.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterPublisher.java
new file mode 100644
index 00000000..c205f472
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterPublisher.java
@@ -0,0 +1,36 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api;
+
+import com.google.gson.JsonElement;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterPublishRequest;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterPublishResponse;
+import reactor.core.publisher.Flux;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+public interface MessageRouterPublisher {
+    Flux<MessageRouterPublishResponse> put(MessageRouterPublishRequest request, Flux<? extends JsonElement> items);
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterSubscriber.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterSubscriber.java
new file mode 100644
index 00000000..a063f66c
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterSubscriber.java
@@ -0,0 +1,53 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api;
+
+import com.google.gson.JsonElement;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeRequest;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeResponse;
+import reactor.core.publisher.Flux;
+import reactor.core.publisher.Mono;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+public interface MessageRouterSubscriber {
+
+    Mono<MessageRouterSubscribeResponse> get(MessageRouterSubscribeRequest request);
+
+    default Flux<JsonElement> getElements(MessageRouterSubscribeRequest request) {
+        return get(request)
+                .doOnNext(response -> {
+                    if (response.failed()) {
+                        throw new IllegalStateException(response.failReason());
+                    }
+                })
+                .filter(MessageRouterSubscribeResponse::hasElements)
+                .flatMapMany(response -> Flux.fromIterable(response.items()));
+    }
+
+    default Flux<JsonElement> subscribeForElements(MessageRouterSubscribeRequest request) {
+        return getElements(request).repeat();
+    }
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/DmaapRequest.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/DmaapRequest.java
new file mode 100644
index 00000000..f2a7193e
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/DmaapRequest.java
@@ -0,0 +1,38 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model;
+
+import org.immutables.value.Value;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+public interface DmaapRequest {
+    @Value.Default
+    default RequestDiagnosticContext diagnosticContext() {
+        return RequestDiagnosticContext.create();
+    }
+
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/DmaapResponse.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/DmaapResponse.java
new file mode 100644
index 00000000..8b4d41e2
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/DmaapResponse.java
@@ -0,0 +1,45 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model;
+
+import org.immutables.value.Value;
+import org.jetbrains.annotations.Nullable;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+public interface DmaapResponse {
+
+    @Nullable String failReason();
+
+    @Value.Derived
+    default boolean successful() {
+        return failReason() == null;
+    }
+
+    @Value.Derived
+    default boolean failed() {
+        return !successful();
+    }
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterPublishRequest.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterPublishRequest.java
new file mode 100644
index 00000000..0d507865
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterPublishRequest.java
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model;
+
+import org.immutables.value.Value;
+import org.onap.dcaegen2.services.sdk.model.streams.dmaap.MessageRouterSink;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+@Value.Immutable
+public interface MessageRouterPublishRequest extends DmaapRequest {
+
+    MessageRouterSink sinkDefinition();
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterPublishResponse.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterPublishResponse.java
new file mode 100644
index 00000000..62175e09
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterPublishResponse.java
@@ -0,0 +1,35 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model;
+
+
+import org.immutables.value.Value;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+@Value.Immutable
+public interface MessageRouterPublishResponse extends DmaapResponse {
+
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterSubscribeRequest.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterSubscribeRequest.java
new file mode 100644
index 00000000..49dca603
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterSubscribeRequest.java
@@ -0,0 +1,38 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model;
+
+import org.immutables.value.Value;
+import org.onap.dcaegen2.services.sdk.model.streams.dmaap.MessageRouterSource;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
+
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+@Value.Immutable
+public interface MessageRouterSubscribeRequest extends DmaapRequest {
+
+    MessageRouterSource sourceDefinition();
+}
diff --git a/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterSubscribeResponse.java b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterSubscribeResponse.java
new file mode 100644
index 00000000..2e826784
--- /dev/null
+++ b/rest-services/dmaap-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/model/MessageRouterSubscribeResponse.java
@@ -0,0 +1,47 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model;
+
+
+import com.google.gson.JsonArray;
+import org.immutables.value.Value;
+import org.onap.dcaegen2.services.sdk.rest.services.annotations.ExperimentalApi;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since 1.1.4
+ */
+@ExperimentalApi
+@Value.Immutable
+public interface MessageRouterSubscribeResponse extends DmaapResponse {
+
+    JsonArray items();
+
+    @Value.Derived
+    default boolean hasElements() {
+        return items().size() > 0;
+    }
+
+    @Value.Derived
+    default boolean isEmpty() {
+        return !hasElements();
+    }
+}
diff --git a/rest-services/dmaap-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterPublisherTest.java b/rest-services/dmaap-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterPublisherTest.java
new file mode 100644
index 00000000..9656ae86
--- /dev/null
+++ b/rest-services/dmaap-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterPublisherTest.java
@@ -0,0 +1,57 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api;
+
+import static org.mockito.Mockito.mock;
+
+import com.google.gson.JsonPrimitive;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.Disabled;
+import org.onap.dcaegen2.services.sdk.model.streams.dmaap.MessageRouterSink;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.ImmutableMessageRouterPublishRequest;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterPublishRequest;
+import reactor.core.publisher.Flux;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+@Disabled
+class MessageRouterPublisherTest {
+
+    private final MessageRouterPublisher cut = mock(MessageRouterPublisher.class);
+    private final MessageRouterSink sinkDefinition = mock(MessageRouterSink.class);
+    private final MessageRouterPublishRequest request = ImmutableMessageRouterPublishRequest.builder()
+            .sinkDefinition(sinkDefinition).build();
+
+    @Test
+    void apiShouldBeUsableWithTransform() {
+        Flux.just(1, 2, 3)
+                .map(JsonPrimitive::new)
+                .transform(input -> cut.put(request, input));
+    }
+
+    @Test
+    void apiShouldBeUsableWithSingleCall() {
+        final Flux<JsonPrimitive> input = Flux.just(1, 2, 3).map(JsonPrimitive::new);
+        cut.put(request, input);
+    }
+}
\ No newline at end of file
diff --git a/rest-services/dmaap-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterSubscriberTest.java b/rest-services/dmaap-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterSubscriberTest.java
new file mode 100644
index 00000000..b8bcde92
--- /dev/null
+++ b/rest-services/dmaap-client/src/test/java/org/onap/dcaegen2/services/sdk/rest/services/dmaap/client/api/MessageRouterSubscriberTest.java
@@ -0,0 +1,65 @@
+/*
+ * ============LICENSE_START====================================
+ * DCAEGEN2-SERVICES-SDK
+ * =========================================================
+ * Copyright (C) 2019 Nokia. All rights reserved.
+ * =========================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *       http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=====================================
+ */
+
+package org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.api;
+
+import static org.mockito.Mockito.mock;
+
+import com.google.gson.JsonPrimitive;
+import org.junit.jupiter.api.Disabled;
+import org.junit.jupiter.api.Test;
+import org.onap.dcaegen2.services.sdk.model.streams.dmaap.MessageRouterSink;
+import org.onap.dcaegen2.services.sdk.model.streams.dmaap.MessageRouterSource;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.DmaapResponse;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.ImmutableMessageRouterPublishRequest;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.ImmutableMessageRouterSubscribeRequest;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterPublishRequest;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeRequest;
+import org.onap.dcaegen2.services.sdk.rest.services.dmaap.client.model.MessageRouterSubscribeResponse;
+import reactor.core.publisher.Flux;
+
+/**
+ * @author <a href="mailto:piotr.jaszczyk@nokia.com">Piotr Jaszczyk</a>
+ * @since March 2019
+ */
+@Disabled
+class MessageRouterSubscriberTest {
+
+    private final MessageRouterSubscriber cut = mock(MessageRouterSubscriber.class);
+    private final MessageRouterSource sinkDefinition = mock(MessageRouterSource.class);
+    private final MessageRouterSubscribeRequest request = ImmutableMessageRouterSubscribeRequest.builder()
+            .sourceDefinition(sinkDefinition)
+            .build();
+
+    @Test
+    void getShouldBeUsable() {
+        cut.get(request)
+                .filter(DmaapResponse::successful)
+                .map(MessageRouterSubscribeResponse::items)
+                .subscribe(System.out::println);
+    }
+
+    @Test
+    void getElementsShouldBeUsable() {
+        cut.getElements(request)
+                .collectList()
+                .subscribe(System.out::println);
+    }
+}
\ No newline at end of file