Initial cps-nf-proxy-rest module setup in CPS project

Issue-ID: CPS-171
Change-Id: I8998dc2818b6bc07fc4fe25a2d735b4ab8b4b817
Signed-off-by: Ruslan Kashapov <ruslan.kashapov@pantheon.tech>

15 files changed, 595 insertions, 0 deletions

diff --git a/cps-bom/pom.xml b/cps-bom/pom.xml
index ab904c559..cc89de7aa 100644
--- a/cps-bom/pom.xml
+++ b/cps-bom/pom.xml
@@ -44,6 +44,11 @@
             </dependency>
             <dependency>
                 <groupId>org.onap.cps</groupId>
+                <artifactId>cps-nf-proxy-rest</artifactId>
+                <version>${project.version}</version>
+            </dependency>
+            <dependency>
+                <groupId>org.onap.cps</groupId>
                 <artifactId>cps-ri</artifactId>
                 <version>${project.version}</version>
             </dependency>
diff --git a/cps-nf-proxy-rest/docs/openapi/components.yaml b/cps-nf-proxy-rest/docs/openapi/components.yaml
new file mode 100644
index 000000000..535219983
--- /dev/null
+++ b/cps-nf-proxy-rest/docs/openapi/components.yaml
@@ -0,0 +1,70 @@
+components:
+  schemas:
+    ErrorMessage:
+      type: object
+      title: Error
+      properties:
+        status:
+          type: string
+        message:
+          type: string
+        details:
+          type: string
+    MultipartFile:
+      required:
+        - file
+      properties:
+        multipartFile:
+          type: string
+          description: multipartFile
+          format: binary
+
+  parameters:
+
+
+  responses:
+    NotFound:
+      description: The specified resource was not found
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/ErrorMessage'
+    Unauthorized:
+      description: Unauthorized
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/ErrorMessage'
+    Forbidden:
+      description: Forbidden
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/ErrorMessage'
+    BadRequest:
+      description: Bad Request
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/ErrorMessage'
+    Conflict:
+      description: Conflict
+      content:
+        application/json:
+          schema:
+            $ref: '#/components/schemas/ErrorMessage'
+    Ok:
+      description: OK
+      content:
+        application/json:
+          schema:
+            type: object
+    Created:
+      description: Created
+      content:
+        text/plain:
+          schema:
+            type: string
+    NoContent:
+      description: No Content
+      content: {}
diff --git a/cps-nf-proxy-rest/docs/openapi/openapi.yml b/cps-nf-proxy-rest/docs/openapi/openapi.yml
new file mode 100755
index 000000000..0dbab34ee
--- /dev/null
+++ b/cps-nf-proxy-rest/docs/openapi/openapi.yml
@@ -0,0 +1,13 @@
+openapi: 3.0.1
+info:
+  title: xNF to CPS Proxy API
+  description: xNF to CPS Proxy API
+  version: "1.0"
+servers:
+  - url: //localhost:8088/
+paths:
+  /v1/hello-world:
+    $ref: 'xnfProxy.yml#/helloWorld'
+  /v1/hello-error:
+    $ref: 'xnfProxy.yml#/helloError'
+
diff --git a/cps-nf-proxy-rest/docs/openapi/xnfProxy.yml b/cps-nf-proxy-rest/docs/openapi/xnfProxy.yml
new file mode 100644
index 000000000..0bb673ac3
--- /dev/null
+++ b/cps-nf-proxy-rest/docs/openapi/xnfProxy.yml
@@ -0,0 +1,31 @@
+helloWorld:
+  get:
+    tags:
+      - nf-proxy
+    summary: rest interface validation
+    operationId: helloWorld
+    responses:
+      200:
+        $ref: 'components.yaml#/components/responses/Ok'
+      400:
+        $ref: 'components.yaml#/components/responses/BadRequest'
+      401:
+        $ref: 'components.yaml#/components/responses/Unauthorized'
+      403:
+        $ref: 'components.yaml#/components/responses/Forbidden'
+
+helloError:
+  get:
+    tags:
+      - nf-proxy
+    summary: error handler validation
+    operationId: helloError
+    responses:
+      200:
+        $ref: 'components.yaml#/components/responses/Ok'
+      400:
+        $ref: 'components.yaml#/components/responses/BadRequest'
+      401:
+        $ref: 'components.yaml#/components/responses/Unauthorized'
+      403:
+        $ref: 'components.yaml#/components/responses/Forbidden'
\ No newline at end of file
diff --git a/cps-nf-proxy-rest/pom.xml b/cps-nf-proxy-rest/pom.xml
new file mode 100755
index 000000000..23adb9335
--- /dev/null
+++ b/cps-nf-proxy-rest/pom.xml
@@ -0,0 +1,119 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <parent>
+        <groupId>org.onap.cps</groupId>
+        <artifactId>cps-parent</artifactId>
+        <version>0.0.1-SNAPSHOT</version>
+        <relativePath>../cps-parent/pom.xml</relativePath>
+    </parent>
+
+    <artifactId>cps-nf-proxy-rest</artifactId>
+
+    <properties>
+        <minimum-coverage>0.44</minimum-coverage>
+    </properties>
+
+    <dependencies>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>cps-service</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>${project.groupId}</groupId>
+            <artifactId>cps-ri</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.springframework.boot</groupId>
+                    <artifactId>spring-boot-starter-tomcat</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-jetty</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-actuator</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.swagger.core.v3</groupId>
+            <artifactId>swagger-annotations</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>io.springfox</groupId>
+            <artifactId>springfox-boot-starter</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.commons</groupId>
+            <artifactId>commons-lang3</artifactId>
+        </dependency>
+        <!-- T E S T   D E P E N D E N C I E S -->
+        <dependency>
+            <groupId>org.codehaus.groovy</groupId>
+            <artifactId>groovy</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.spockframework</groupId>
+            <artifactId>spock-core</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.spockframework</groupId>
+            <artifactId>spock-spring</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>cglib</groupId>
+            <artifactId>cglib-nodep</artifactId>
+            <scope>test</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-test</artifactId>
+            <scope>test</scope>
+            <exclusions>
+                <exclusion>
+                    <groupId>org.junit.vintage</groupId>
+                    <artifactId>junit-vintage-engine</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
+    </dependencies>
+
+    <build>
+        <plugins>
+            <plugin>
+                <groupId>org.springframework.boot</groupId>
+                <artifactId>spring-boot-maven-plugin</artifactId>
+            </plugin>
+            <!-- Swagger code generation. -->
+            <plugin>
+                <groupId>io.swagger.codegen.v3</groupId>
+                <artifactId>swagger-codegen-maven-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <goals>
+                            <goal>generate</goal>
+                        </goals>
+                        <configuration>
+                            <inputSpec>${project.basedir}/docs/openapi/openapi.yml</inputSpec>
+                            <invokerPackage>org.onap.cps.nfproxy.rest.controller</invokerPackage>
+                            <modelPackage>org.onap.cps.nfproxy.rest.model</modelPackage>
+                            <apiPackage>org.onap.cps.nfproxy.rest.api</apiPackage>
+                            <language>spring</language>
+                            <generateSupportingFiles>false</generateSupportingFiles>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
+</project>
diff --git a/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/Application.java b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/Application.java
new file mode 100644
index 000000000..abad806e0
--- /dev/null
+++ b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/Application.java
@@ -0,0 +1,30 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Pantheon.tech
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.nfproxy;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Application {
+    public static void main(final String[] args) {
+        SpringApplication.run(Application.class, args);
+    }
+}
diff --git a/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/config/NfProxyConfig.java b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/config/NfProxyConfig.java
new file mode 100755
index 000000000..3bdedc363
--- /dev/null
+++ b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/config/NfProxyConfig.java
@@ -0,0 +1,44 @@
+/*-
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Pantheon.tech
+ * ================================================================================
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.nfproxy.config;
+
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import springfox.documentation.builders.PathSelectors;
+import springfox.documentation.builders.RequestHandlerSelectors;
+import springfox.documentation.spi.DocumentationType;
+import springfox.documentation.spring.web.plugins.Docket;
+
+@Configuration
+public class NfProxyConfig {
+
+    /**
+     * Swagger-ui configuration.
+     */
+    @Bean
+    public Docket api() {
+        return new Docket(DocumentationType.OAS_30).select()
+            .apis(RequestHandlerSelectors.any())
+            .paths(PathSelectors.any())
+            .build();
+    }
+
+}
\ No newline at end of file
diff --git a/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/rest/controller/NfProxyController.java b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/rest/controller/NfProxyController.java
new file mode 100644
index 000000000..8125c5aed
--- /dev/null
+++ b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/rest/controller/NfProxyController.java
@@ -0,0 +1,42 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Pantheon.tech
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.nfproxy.rest.controller;
+
+import org.onap.cps.nfproxy.rest.api.NfProxyApi;
+import org.onap.cps.spi.exceptions.CpsException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+@RestController
+@RequestMapping("${rest.api.base-path}")
+public class NfProxyController implements NfProxyApi {
+
+    @Override
+    public ResponseEntity<Object> helloWorld() {
+        return new ResponseEntity<>("Hello World!", HttpStatus.OK);
+    }
+
+    @Override
+    public ResponseEntity<Object> helloError() {
+        throw new CpsException("Example error Message", "Example error description");
+    }
+}
diff --git a/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/rest/exceptions/NfProxyRestExceptionHandler.java b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/rest/exceptions/NfProxyRestExceptionHandler.java
new file mode 100644
index 000000000..96a1cb267
--- /dev/null
+++ b/cps-nf-proxy-rest/src/main/java/org/onap/cps/nfproxy/rest/exceptions/NfProxyRestExceptionHandler.java
@@ -0,0 +1,78 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Pantheon.tech
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.nfproxy.rest.exceptions;
+
+import lombok.AccessLevel;
+import lombok.NoArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.exception.ExceptionUtils;
+import org.onap.cps.nfproxy.rest.controller.NfProxyController;
+import org.onap.cps.nfproxy.rest.model.ErrorMessage;
+import org.onap.cps.spi.exceptions.CpsException;
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+/**
+ * Exception handler with error message return.
+ */
+@Slf4j
+@NoArgsConstructor(access = AccessLevel.PRIVATE)
+@RestControllerAdvice(assignableTypes = {NfProxyController.class})
+public class NfProxyRestExceptionHandler {
+
+    /**
+     * Default exception handler.
+     *
+     * @param exception the exception to handle
+     * @return response with response code 500.
+     */
+    @ExceptionHandler
+    public static ResponseEntity<Object> handleInternalServerErrorExceptions(
+        final Exception exception) {
+        return buildErrorResponse(HttpStatus.INTERNAL_SERVER_ERROR, exception);
+    }
+
+    @ExceptionHandler({CpsException.class})
+    public static ResponseEntity<Object> handleAnyOtherCpsExceptions(final CpsException exception) {
+        return buildErrorResponse(HttpStatus.INTERNAL_SERVER_ERROR, exception.getMessage(), extractDetails(exception));
+    }
+
+    private static ResponseEntity<Object> buildErrorResponse(final HttpStatus status, final Exception exception) {
+        return buildErrorResponse(status, exception.getMessage(), ExceptionUtils.getStackTrace(exception));
+    }
+
+    private static ResponseEntity<Object> buildErrorResponse(final HttpStatus status, final String message,
+        final String details) {
+        log.error("An error has occurred : {} Status: {} Details: {}", message, status, details);
+        final ErrorMessage errorMessage = new ErrorMessage();
+        errorMessage.setStatus(status.toString());
+        errorMessage.setMessage(message);
+        errorMessage.setDetails(details);
+        return new ResponseEntity<>(errorMessage, status);
+    }
+
+    private static String extractDetails(final CpsException exception) {
+        return exception.getCause() == null
+            ? exception.getDetails()
+            : ExceptionUtils.getStackTrace(exception.getCause());
+    }
+}
diff --git a/cps-nf-proxy-rest/src/main/resources/application.yml b/cps-nf-proxy-rest/src/main/resources/application.yml
new file mode 100644
index 000000000..06c0fd1ea
--- /dev/null
+++ b/cps-nf-proxy-rest/src/main/resources/application.yml
@@ -0,0 +1,46 @@
+server:
+    port: 8080
+
+rest:
+    api:
+        base-path: /cps-nf-proxy/api
+
+spring:
+    main:
+        banner-mode: "off"
+# for POC only, later this should move to cpi-ri module
+    jpa:
+        ddl-auto: create
+        open-in-view: false
+        properties:
+            hibernate:
+                enable_lazy_load_no_trans: true
+                dialect: org.hibernate.dialect.PostgreSQLDialect
+
+    datasource:
+        url: jdbc:postgresql://${DB_HOST}:5432/cpsdb
+        username: ${DB_USERNAME}
+        password: ${DB_PASSWORD}
+        driverClassName: org.postgresql.Driver
+        initialization-mode: always
+
+# Actuator
+management:
+    endpoints:
+        web:
+            base-path: /manage
+        exposure:
+            include: info,health,loggers
+    endpoint:
+        health:
+            show-details: always
+            # kubernetes probes: liveness and readiness
+            probes:
+                enabled: true
+        loggers:
+            enabled: true
+
+logging:
+    level:
+        org:
+            springframework: INFO
diff --git a/cps-nf-proxy-rest/src/main/resources/openapi-configuration.json b/cps-nf-proxy-rest/src/main/resources/openapi-configuration.json
new file mode 100644
index 000000000..efc2f9778
--- /dev/null
+++ b/cps-nf-proxy-rest/src/main/resources/openapi-configuration.json
@@ -0,0 +1,28 @@
+{
+    "resourcePackages": [
+        "org.onap.cps.nfproxy.rest.controller"
+    ],
+    "prettyPrint": true,
+    "cacheTTL": 0,
+    "openAPI": {
+        "info": {
+            "title": "ONAP Open API v3 CPS xNF Proxy Spec",
+            "description": "The API Description may be multiline, and GitHub Flavored Markdown, GFM syntax, can be used for rich text representation.",
+            "x-logo": {
+                "url": "logo.png"
+            },
+            "contact": {
+                "name": "ONAP",
+                "url": "https://onap.readthedocs.io",
+                "email": "onap-discuss@lists.onap.org"
+            },
+            "license": {
+                "name": "Apache 2.0",
+                "url": "http://www.apache.org/licenses/LICENSE-2.0"
+            },
+            "version": "1.2.34",
+            "x-planned-retirement-date": "202207",
+            "x-component": "Modeling"
+        }
+    }
+}
diff --git a/cps-nf-proxy-rest/src/test/groovy/org/onap/cps/nfproxy/config/NfProxyConfigSpec.groovy b/cps-nf-proxy-rest/src/test/groovy/org/onap/cps/nfproxy/config/NfProxyConfigSpec.groovy
new file mode 100644
index 000000000..3eb42d777
--- /dev/null
+++ b/cps-nf-proxy-rest/src/test/groovy/org/onap/cps/nfproxy/config/NfProxyConfigSpec.groovy
@@ -0,0 +1,32 @@
+/*
+ * ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Pantheon.tech
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+package org.onap.cps.nfproxy.config
+
+
+import spock.lang.Specification
+import springfox.documentation.spring.web.plugins.Docket
+
+class NfProxyConfigSpec extends Specification {
+    def objectUnderTest = new NfProxyConfig()
+
+    def 'xNF Proxy configuration has a Docket API'() {
+        expect: 'the CPS configuration has a Docket API'
+            objectUnderTest.api() instanceof Docket
+    }
+}
diff --git a/cps-nf-proxy-rest/src/test/groovy/org/onap/cps/nfproxy/rest/controller/NfProxyControllerSpec.groovy b/cps-nf-proxy-rest/src/test/groovy/org/onap/cps/nfproxy/rest/controller/NfProxyControllerSpec.groovy
new file mode 100644
index 000000000..d1c3b1648
--- /dev/null
+++ b/cps-nf-proxy-rest/src/test/groovy/org/onap/cps/nfproxy/rest/controller/NfProxyControllerSpec.groovy
@@ -0,0 +1,54 @@
+/*
+ *  ============LICENSE_START=======================================================
+ *  Copyright (C) 2021 Pantheon.tech
+ *  ================================================================================
+ *  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.
+ *
+ *  SPDX-License-Identifier: Apache-2.0
+ *  ============LICENSE_END=========================================================
+ */
+
+package org.onap.cps.nfproxy.rest.controller
+
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.beans.factory.annotation.Value
+import org.springframework.boot.test.autoconfigure.web.servlet.WebMvcTest
+import org.springframework.http.HttpStatus
+import org.springframework.test.web.servlet.MockMvc
+import org.springframework.test.web.servlet.request.MockMvcRequestBuilders
+import spock.lang.Specification
+
+@WebMvcTest
+class NfProxyControllerSpec extends Specification {
+
+    @Autowired
+    MockMvc mvc
+
+    @Value('${rest.api.base-path}')
+    def basePath
+
+    def 'Hello world method invocation.'(){
+        when: 'hello-world request performed'
+            def response = mvc.perform(MockMvcRequestBuilders.get("$basePath/v1/hello-world")).andReturn().response
+        then: 'success response returned'
+            response.status == HttpStatus.OK.value()
+            response.getContentAsString().contains("Hello World!")
+    }
+
+    def 'Example error handling.'(){
+        when: 'hello-error request performed'
+            def response = mvc.perform(MockMvcRequestBuilders.get("$basePath/v1/hello-error")).andReturn().response
+        then: 'error response returned'
+            response.status == HttpStatus.INTERNAL_SERVER_ERROR.value()
+            response.getContentAsString().contains("Example error")
+    }
+}
diff --git a/cps-parent/pom.xml b/cps-parent/pom.xml
index c3b61541f..b8f8975a6 100755
--- a/cps-parent/pom.xml
+++ b/cps-parent/pom.xml
@@ -43,6 +43,8 @@
             ../cps-service/target/site/jacoco-aggregate/jacoco.xml,
             ../cps-rest/target/site/jacoco-ut/jacoco.xml,
             ../cps-rest/target/site/jacoco-aggregate/jacoco.xml,
+            ../cps-nf-proxy-rest/target/site/jacoco-ut/jacoco.xml,
+            ../cps-nf-proxy-rest/target/site/jacoco-aggregate/jacoco.xml,
         </sonar.coverage.jacoco.xmlReportPaths>
     </properties>
 
diff --git a/pom.xml b/pom.xml
index 2ff88c11b..eaa388cc1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -32,6 +32,7 @@
         <module>cps-parent</module>

         <module>cps-service</module>

         <module>cps-rest</module>

+        <module>cps-nf-proxy-rest</module>

         <module>cps-ri</module>

         <module>checkstyle</module>

         <module>spotbugs</module>