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This guide will show how to validate CBA velocity Templates.

...

.
├── Definitions │   └── hello_world.json
├── Templates │   └── base-config-data-velocity.json
│   └── base-config-velocity-template.vtl
│   └── default-variable-value-data.json
│   └── default-variable-value-velocity-template.vtl
├── TOSCA-Metadata │   └── TOSCA.meta ├── pom.xml

pom.

xml      

xml                                                                                                                                                                                                         

               


Expand
title
Expand
expand source
<?xml version="1.0" encoding="UTF-8"?>
<!--
~ Copyright © 2020 Bell Canada
~
~ 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.
-->
<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>

<parent>
<groupId>org.onap.ccsdk.cds.components.cba</groupId>
<artifactId>blueprint-model</artifactId>
<version>1.3.0-SNAPSHOT</version>
</parent>

<artifactId>hello_world_1.0.0-CBA</artifactId>
<packaging>pom</packaging>

<name>Components Model Catalog - Blueprints Model - hello_world_1.0.0 Parent</name>

<properties>
<kotlin.version>1.6.20-RC</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.onap.ccsdk.cds.blueprintsprocessor.modules</groupId>
<artifactId>execution-service</artifactId>
</dependency>
<dependency>
<groupId>org.onap.ccsdk.cds.blueprintsprocessor.functions</groupId>
<artifactId>resource-resolution</artifactId>
</dependency>
<dependency>
<groupId>org.onap.ccsdk.cds.blueprintsprocessor.functions</groupId>
<artifactId>netconf-executor</artifactId>
</dependency>
<dependency>
<groupId>org.onap.ccsdk.cds.blueprintsprocessor.functions</groupId>
<artifactId>restconf-executor</artifactId>
</dependency>
<dependency>
<groupId>org.onap.ccsdk.cds.blueprintsprocessor.functions</groupId>
<artifactId>cli-executor</artifactId>
</dependency>
<dependency>
<groupId>org.onap.ccsdk.cds.blueprintsprocessor.functions</groupId>
<artifactId>message-prioritization</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test-junit</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlinx</groupId>
<artifactId>kotlinx-coroutines-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13.2</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.mockk</groupId>
<artifactId>mockk</artifactId>
<version>1.10.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>3.14.0</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.13</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib-jdk8</artifactId>
<version>${kotlin.version}</version>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-test</artifactId>
<version>${kotlin.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.onap.ccsdk.cds.blueprintsprocessor.modules</groupId>
<artifactId>blueprint-core</artifactId>
<version>1.3.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testng</groupId>
<artifactId>testng</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.apache.velocity</groupId>
<artifactId>velocity</artifactId>
<version>1.5</version>
</dependency>
</dependencies>

<build>
<sourceDirectory>src/kotlin</sourceDirectory>
<resources>
<resource>
<directory>${project.basedir}/Environments</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<executions>
<execution>
<id>pre-unit-test</id>
<phase>none</phase>
</execution>
<execution>
<id>default-prepare-agent</id>
<phase>none</phase>
</execution>
<execution>
<id>post-unit-test</id>
<phase>none</phase>
</execution>
<execution>
<id>default-report</id>
<phase>none</phase>
</execution>
<execution>
<id>pre-integration-test</id>
<phase>none</phase>
</execution>
<execution>
<id>post-integration-test</id>
<phase>none</phase>
</execution>
<execution>
<id>default-check</id>
<phase>none</phase>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-plugin</artifactId>
<version>${kotlin.version}</version>
<executions>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
</execution>
</executions>
<configuration>
<jvmTarget>1.8</jvmTarget>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-site-plugin</artifactId>
<executions>
<execution>
<id>attach-descriptor</id>
<phase>none</phase>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-checkstyle-plugin</artifactId>
<executions>
<execution>
<id>check-license</id>
<phase>none</phase>
</execution>
<execution>
<id>check-style</id>
<phase>none</phase>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-assembly-plugin</artifactId>
<dependencies>
<dependency>
<groupId>org.onap.ccsdk.cds.components.cba</groupId>
<artifactId>cba-assembly-descriptor</artifactId>
<version>${ccsdk.cds.version}</version>
<exclusions>
<exclusion>
<groupId>*</groupId>
<artifactId>*</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<executions>
<execution>
<id>make-assembly</id>
<phase>package</phase>
<goals>
<goal>single</goal>
</goals>
<configuration>
<descriptorRefs>
<descriptorRef>cba_zip</descriptorRef>
</descriptorRefs>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<executions>
<execution>
<id>default</id>
<phase>none</phase>
</execution>
<execution>
<id>integration-tests</id>
<phase>none</phase>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<executions>
<execution>
<id>default-test</id>
<phase>test</phase>
<goals>
<goal>test</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>

<profiles>
<profile>
<id>deploy-cba</id>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.gmaven</groupId>
<artifactId>groovy-maven-plugin</artifactId>
<dependencies>
<dependency>
<groupId>com.squareup.okhttp3</groupId>
<artifactId>okhttp</artifactId>
<version>3.14.0</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>${commons-io-version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<id>deploy-cba</id>
<phase>install</phase>
<goals>
<goal>execute</goal>
</goals>
<configuration>
<source>
import okhttp3.Credentials
import okhttp3.MediaType
import okhttp3.MultipartBody
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.RequestBody
import org.apache.commons.io.IOUtils

import java.io.File

target = "${basedir.absolutePath}/target"
userName = throwIfPropMissing('cds.username')
password = throwIfPropMissing('cds.password')
protocol = properties['cds.protocol'] ?: 'http'
host = properties['cds.host'] ?: 'localhost'
port = properties['cds.port'] ?: '8081'

def cba = "${project.artifact.artifactId}-${project.artifact.version}-cba.zip"
def enrichedCba = "${project.artifact.artifactId}-${project.artifact.version}-enriched-cba.zip"
def enrichEndpoint = properties['cds.enrich.endpoint'] ?: 'api/v1/blueprint-model/enrich'
def publishEndpoint = properties['cds.publish.endpoint'] ?: 'api/v1/blueprint-model/publish'

def throwIfPropMissing(prop) {
value = properties[prop]
if (!value || "".equals(value)) {
throw new RuntimeException("Property missing: $prop")
}
return value
}

def buildRequest(endpoint, fileName) {
body = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("file",
fileName,
RequestBody.create(MediaType.parse('application/zip'), new File(target, fileName)))
.build()

return new Request.Builder()
.url("$protocol://$host:$port/$endpoint")
.addHeader('Authorization', Credentials.basic(userName, password))
.post(body)
.build()
}

def logAndThrow(msg) {
if(response) {
log.error(response.body().string())
}
throw new RuntimeException(msg)
}

response = null
try {
def client = new OkHttpClient()

response = client.newCall(buildRequest(enrichEndpoint, cba)).execute()
if (!response || !response.isSuccessful()) {
logAndThrow("Failed to enrich CBA")
}

IOUtils.copy(
response.body().byteStream(),
new FileOutputStream(new File(target, enrichedCba))
)
log.info("Created enriched cba: $enrichedCba")

response = client.newCall(buildRequest(publishEndpoint, enrichedCba)).execute()
if (!response || !response.isSuccessful()) {
logAndThrow("Failed to publish CBA")
}

log.info("CBA Deployed")
log.info(response.body().string())
} finally {
if (response) {
response.close()
}
}
</source>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
</project>



Run tests with maven
mvn clean test


Build zip file

# This will build /target/your-cba-name-1.0.0-SNAPSHOT-cba.zip
mvn clean install

Add Unit tests

.
├── Definitions
│    └── hello_world.json
├── Templates
│    └── base-config-data-velocity.json
│   └── base-config-velocity-template.vtl
│   └── default-variable-value-data.json
│   └── default-variable-value-velocity-template.vtl
├── Tests
│     └── kotlin
│          └── BlueprintVelocityTemplateTest.kt
│          └── default-variable-value-data.txt
├── TOSCA-Metadata
│     └── TOSCA.meta
├── pom.xml

Kotlin unit tests should be added under /Tests/kotlin as show above. Test files must contain "Test" in the filename,
for example BlueprintVelocityTemplateTest.kt
 or TestBlueprintVelocityTemplate.kt


Example project:
hello_world-1.0.0-CBA.zip

Testing

After the pom is added, the CBA can be used in IntelliJ as a maven project.

Create a new empty project

Image Added


Give it a name

Image Added


Click the + symbol and select import module

Image Added


Select the pom.xml in your CBA directory

Image Added


CBA with JSON & Templates

Inorder to Validate the Templates we require JSON file where we include variable values, so that it maps to the VTL

For each variable in base-config-template.vtl we have  base-config-velocity.json which has variable values

Image Added


Similarly, we have default-variable-value-data.json which has only one variable value for default-variable-value-template.vtl

Image Added


You should now be able to write, run  unit tests

Create BlueprintVelocityTemplateTest class , Under Test directory to implement unit tests

Image Added


Here we use the existing class BlueprintVelocityTemplateService whichis in CDS container by importing it to project ,where

it has Velocity Engine implementation

Image Added


You can  implement following methods to test the templates

First  we use  assertNotNull() method means "passed parameter must not be null ": if it is null then the test case fails

Image Added


Second, assertEquals  can be used to check if two objects is equally defined or not 

Image Added


Third , we take the Expected value variable from a file

Image Added


Then we write tests

Image Added


Once you include Test code, Make sure your CBA is working properly, then run the below command in the terminal

Image Added


we get Build Success 

Image Added


Then, Modify run configuration add Environmental variables

 Image Added


Once you run the BlueprintVelocityTemplateTest class, then we get the result

Image Added