Restructure aai-client

and get rid of common-dependency module

Issue-ID: DCAEGEN2-1792
Change-Id: Ifcc69a917b2aec02615df93d10979d6c38a25ff2
Signed-off-by: Joanna Jeremicz <joanna.jeremicz@nokia.com>

16 files changed, 177 insertions, 36 deletions

diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/config/AaiClientConfiguration.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/AaiClientConfiguration.java
index ff74f9b7..ce8c155c 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/config/AaiClientConfiguration.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/AaiClientConfiguration.java
@@ -18,7 +18,7 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.config;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api;
 
 import java.io.Serializable;
 import java.util.Map;
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/AaiHttpClient.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/AaiHttpClient.java
index 317fab2c..442eea22 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/AaiHttpClient.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/AaiHttpClient.java
@@ -18,7 +18,7 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api;
 
 import reactor.core.publisher.Mono;
 
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/Request.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/Request.java
index cbe3b205..3c0e55e6 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/Request.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/Request.java
@@ -18,7 +18,7 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api;
 
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpMethod;
 
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/Transaction.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/Transaction.java
index 902282be..a32132bf 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/Transaction.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/Transaction.java
@@ -18,12 +18,13 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api;
 
 import com.google.gson.JsonObject;
 import com.google.gson.annotations.SerializedName;
 import org.immutables.gson.Gson;
 import org.immutables.value.Value;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.Transactions;
 
 /**
  * @see Transactions
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/Transactions.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/Transactions.java
index a21c5617..e4058ef7 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/Transactions.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/Transactions.java
@@ -18,7 +18,7 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api;
 
 import static org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpMethod.POST;
 
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/get/AaiGetServiceInstanceClient.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/get/AaiGetServiceInstanceClient.java
index 6d623ff5..dd53bfc2 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/get/AaiGetServiceInstanceClient.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/get/AaiGetServiceInstanceClient.java
@@ -18,20 +18,20 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.get;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.get;
 
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiRequests.createAaiGetRequest;
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.AaiHttpClientFactory.createRequestDiagnosticContext;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.impl.AaiRequests.createAaiGetRequest;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.main.AaiHttpClientFactory.createRequestDiagnosticContext;
 
 import io.vavr.collection.HashMap;
 import io.vavr.collection.Map;
 import org.apache.commons.text.StringSubstitutor;
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.config.AaiClientConfiguration;
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiHttpClient;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiClientConfiguration;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiHttpClient;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpRequest;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpResponse;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClient;
-import org.onap.dcaegen2.services.sdk.rest.services.model.AaiServiceInstanceQueryModel;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.AaiServiceInstanceQueryModel;
 import org.onap.dcaegen2.services.sdk.rest.services.uri.URI;
 import reactor.core.publisher.Mono;
 
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/get/AaiHttpGetClient.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/get/AaiHttpGetClient.java
index 8fa59543..6041a7c1 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/get/AaiHttpGetClient.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/get/AaiHttpGetClient.java
@@ -18,17 +18,17 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.get;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.get;
 
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiRequests.createAaiGetRequest;
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.AaiHttpClientFactory.createRequestDiagnosticContext;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.impl.AaiRequests.createAaiGetRequest;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.main.AaiHttpClientFactory.createRequestDiagnosticContext;
 
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.config.AaiClientConfiguration;
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiHttpClient;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiClientConfiguration;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiHttpClient;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpRequest;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpResponse;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClient;
-import org.onap.dcaegen2.services.sdk.rest.services.model.AaiModel;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.AaiModel;
 import org.onap.dcaegen2.services.sdk.rest.services.uri.URI;
 import reactor.core.publisher.Mono;
 
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/patch/AaiHttpPatchClient.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/patch/AaiHttpPatchClient.java
index 63e4e2b4..4979855e 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/patch/AaiHttpPatchClient.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/patch/AaiHttpPatchClient.java
@@ -18,20 +18,20 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.patch;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.patch;
 
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiRequests.createAaiPatchRequest;
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.AaiHttpClientFactory.createRequestDiagnosticContext;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.impl.AaiRequests.createAaiPatchRequest;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.main.AaiHttpClientFactory.createRequestDiagnosticContext;
 
 import io.vavr.collection.HashMap;
 import io.vavr.collection.Map;
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.config.AaiClientConfiguration;
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiHttpClient;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiClientConfiguration;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiHttpClient;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpRequest;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpResponse;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClient;
-import org.onap.dcaegen2.services.sdk.rest.services.model.AaiModel;
-import org.onap.dcaegen2.services.sdk.rest.services.model.JsonBodyBuilder;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.AaiModel;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.JsonBodyBuilder;
 import org.onap.dcaegen2.services.sdk.rest.services.uri.URI;
 import reactor.core.publisher.Mono;
 
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/put/AaiHttpPutClient.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/put/AaiHttpPutClient.java
index 821d07ef..a33370c2 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/put/AaiHttpPutClient.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/api/put/AaiHttpPutClient.java
@@ -19,18 +19,18 @@
  */
 
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.put;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.put;
 
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiRequests.createAaiPutRequest;
-import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.AaiHttpClientFactory.createRequestDiagnosticContext;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.impl.AaiRequests.createAaiPutRequest;
+import static org.onap.dcaegen2.services.sdk.rest.services.aai.client.main.AaiHttpClientFactory.createRequestDiagnosticContext;
 
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.config.AaiClientConfiguration;
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http.AaiHttpClient;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiClientConfiguration;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiHttpClient;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpRequest;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpResponse;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClient;
-import org.onap.dcaegen2.services.sdk.rest.services.model.AaiModel;
-import org.onap.dcaegen2.services.sdk.rest.services.model.JsonBodyBuilder;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.AaiModel;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.JsonBodyBuilder;
 import reactor.core.publisher.Mono;
 
 public class AaiHttpPutClient implements AaiHttpClient<AaiModel, HttpResponse> {
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/AaiRequests.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/impl/AaiRequests.java
index 9a40dc57..d46873aa 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/http/AaiRequests.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/impl/AaiRequests.java
@@ -17,7 +17,7 @@
  * limitations under the License.
  * ============LICENSE_END=========================================================
  */
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service.http;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.impl;
 
 import io.vavr.collection.HashMap;
 import java.util.Map;
@@ -25,8 +25,8 @@ import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpMethod;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.HttpRequest;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.ImmutableHttpRequest;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RequestBody;
-import org.onap.dcaegen2.services.sdk.rest.services.model.ClientModel;
-import org.onap.dcaegen2.services.sdk.rest.services.model.JsonBodyBuilder;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.ClientModel;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.model.JsonBodyBuilder;
 import org.onap.dcaegen2.services.sdk.rest.services.model.logging.RequestDiagnosticContext;
 
 public final class AaiRequests {
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/AaiHttpClientFactory.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/main/AaiHttpClientFactory.java
index 4d0d952c..743fa44d 100644
--- a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/service/AaiHttpClientFactory.java
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/main/AaiHttpClientFactory.java
@@ -18,11 +18,11 @@
  * ============LICENSE_END=========================================================
  */
 
-package org.onap.dcaegen2.services.sdk.rest.services.aai.client.service;
+package org.onap.dcaegen2.services.sdk.rest.services.aai.client.main;
 
 import java.nio.file.Paths;
 import java.util.UUID;
-import org.onap.dcaegen2.services.sdk.rest.services.aai.client.config.AaiClientConfiguration;
+import org.onap.dcaegen2.services.sdk.rest.services.aai.client.api.AaiClientConfiguration;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClient;
 import org.onap.dcaegen2.services.sdk.rest.services.adapters.http.RxHttpClientFactory;
 import org.onap.dcaegen2.services.sdk.rest.services.model.logging.ImmutableRequestDiagnosticContext;
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/AaiModel.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/AaiModel.java
new file mode 100644
index 00000000..eb96031e
--- /dev/null
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/AaiModel.java
@@ -0,0 +1,27 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.aai.client.model;
+
+@FunctionalInterface
+public interface AaiModel extends ClientModel {
+
+    String getCorrelationId();
+}
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/AaiServiceInstanceQueryModel.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/AaiServiceInstanceQueryModel.java
new file mode 100644
index 00000000..a0135a99
--- /dev/null
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/AaiServiceInstanceQueryModel.java
@@ -0,0 +1,31 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.aai.client.model;
+
+import org.immutables.value.Value;
+
+@Value.Style(stagedBuilder = true)
+@Value.Immutable
+public interface AaiServiceInstanceQueryModel extends ClientModel {
+    String customerId();
+    String serviceType();
+    String serviceInstanceId();
+}
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/ClientModel.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/ClientModel.java
new file mode 100644
index 00000000..d4457c6f
--- /dev/null
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/ClientModel.java
@@ -0,0 +1,24 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.aai.client.model;
+
+public interface ClientModel {
+}
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/DmaapModel.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/DmaapModel.java
new file mode 100644
index 00000000..7cae908d
--- /dev/null
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/DmaapModel.java
@@ -0,0 +1,24 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.aai.client.model;
+
+public interface DmaapModel extends ClientModel {
+}
diff --git a/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/JsonBodyBuilder.java b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/JsonBodyBuilder.java
new file mode 100644
index 00000000..4b674aaf
--- /dev/null
+++ b/rest-services/aai-client/src/main/java/org/onap/dcaegen2/services/sdk/rest/services/aai/client/model/JsonBodyBuilder.java
@@ -0,0 +1,34 @@
+/*
+ * ============LICENSE_START=======================================================
+ * DCAEGEN2-SERVICES-SDK
+ * ================================================================================
+ * Copyright (C) 2018 NOKIA Intellectual Property. 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.aai.client.model;
+
+@FunctionalInterface
+public interface JsonBodyBuilder<T extends ClientModel> {
+
+    /**
+     * Method for serialization object by GSON.
+     *
+     * @param t - object which will be serialized
+     * @return string from serialization
+     */
+
+     String createJsonBody(T t);
+}
\ No newline at end of file