Jinja template for Blueprint template service

Change-Id: Iec777e4500c2a040faccc8375b1d2dd24c27cb7f
Issue-ID: CCSDK-1193
Signed-off-by: Steve Siani <alphonse.steve.siani.djissitchi@ibm.com>

17 files changed, 388 insertions, 104 deletions

diff --git a/ms/controllerblueprints/modules/blueprint-core/load/model_type/artifact_type/artifact-mapping-resource.json b/ms/controllerblueprints/modules/blueprint-core/load/model_type/artifact_type/artifact-mapping-resource.json
index 9123efd1d..f50562890 100644
--- a/ms/controllerblueprints/modules/blueprint-core/load/model_type/artifact_type/artifact-mapping-resource.json
+++ b/ms/controllerblueprints/modules/blueprint-core/load/model_type/artifact_type/artifact-mapping-resource.json
@@ -1,5 +1,5 @@
 {
-  "description": " Velocity Template Resource Mapping File used along with Configuration template",
+  "description": " Velocity and jinja Templates Resource Mapping File used along with Configuration template",
   "version": "1.0.0",
   "file_ext": [
     "json"
diff --git a/ms/controllerblueprints/modules/blueprint-core/load/model_type/artifact_type/artifact-template-jinja.json b/ms/controllerblueprints/modules/blueprint-core/load/model_type/artifact_type/artifact-template-jinja.json
new file mode 100644
index 000000000..e32da5ef0
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/load/model_type/artifact_type/artifact-template-jinja.json
@@ -0,0 +1,8 @@
+{
+  "description": "Jinja Template used for Configuration",
+  "version": "1.0.0",
+  "file_ext": [
+    "jinja"
+  ],
+  "derived_from": "tosca.artifacts.Implementation"
+}
\ No newline at end of file
diff --git a/ms/controllerblueprints/modules/blueprint-core/load/model_type/node_type/artifact-config-template.json b/ms/controllerblueprints/modules/blueprint-core/load/model_type/node_type/artifact-config-template.json
index 057038fd2..142066121 100644
--- a/ms/controllerblueprints/modules/blueprint-core/load/model_type/node_type/artifact-config-template.json
+++ b/ms/controllerblueprints/modules/blueprint-core/load/model_type/node_type/artifact-config-template.json
@@ -1,5 +1,5 @@
 {
-	"description": "This is Configuration Velocity Template",
+	"description": "This is Configuration Velocity and Jinja Template",
 	"version": "1.0.0",
 	"properties": {
 		"action-names": {
diff --git a/ms/controllerblueprints/modules/blueprint-core/pom.xml b/ms/controllerblueprints/modules/blueprint-core/pom.xml
index 3342e3677..524a42f17 100644
--- a/ms/controllerblueprints/modules/blueprint-core/pom.xml
+++ b/ms/controllerblueprints/modules/blueprint-core/pom.xml
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
   ~ Copyright © 2017-2018 AT&T Intellectual Property.
-  ~ Modifications Copyright © 2018 IBM.
+  ~ Modifications Copyright © 2018 - 2019 IBM, Bell Canada
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.
@@ -50,6 +50,10 @@
             <groupId>org.apache.velocity</groupId>
             <artifactId>velocity</artifactId>
         </dependency>
+        <dependency>
+            <groupId>com.hubspot.jinjava</groupId>
+            <artifactId>jinjava</artifactId>
+        </dependency>
         <!--Testing dependencies-->
         <dependency>
             <groupId>org.jetbrains.kotlin</groupId>
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/BluePrintConstants.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/BluePrintConstants.kt
index 23c52b4b3..9a652fb92 100644
--- a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/BluePrintConstants.kt
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/BluePrintConstants.kt
@@ -1,6 +1,6 @@
 /*
  * Copyright © 2017-2018 AT&T Intellectual Property.
- * Modifications Copyright © 2018 IBM.
+ * Modifications Copyright © 2018 - 2019 IBM, Bell Canada
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -180,5 +180,6 @@ object BluePrintConstants {
     const val PROPERTY_CURRENT_IMPLEMENTATION = "current-implementation"
     const val PROPERTY_EXECUTION_REQUEST = "execution-request"
 
-
+    const val ARTIFACT_VELOCITY_TYPE_NAME = "artifact-template-velocity"
+    const val ARTIFACT_JINJA_TYPE_NAME = "artifact-template-jinja"
 }
\ No newline at end of file
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/interfaces/BlueprintTemplateService.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/interfaces/BlueprintTemplateService.kt
new file mode 100644
index 000000000..ec1542cd3
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/interfaces/BlueprintTemplateService.kt
@@ -0,0 +1,56 @@
+/*
+ * Copyright © 2019 IBM, 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.
+ */
+package org.onap.ccsdk.cds.controllerblueprints.core.interfaces
+
+import com.fasterxml.jackson.core.io.CharTypes
+import com.fasterxml.jackson.databind.node.JsonNodeFactory
+import com.fasterxml.jackson.databind.node.TextNode
+
+interface BlueprintTemplateService {
+
+    /**
+     * Generate dynamique content using Velocity Template or Jinja template
+     *
+     * @param template template string content
+     * @param json json string content
+     * @param ignoreJsonNull Ignore Null value in the JSON content
+     * @param additionalContext (Key, value) mutable map for additional variables
+     * @return Content result
+     *
+     **/
+    suspend fun generateContent(template: String, json: String = "", ignoreJsonNull: Boolean = false,
+                        additionalContext: MutableMap<String, Any> = mutableMapOf()): String
+}
+
+/**
+ * Customise JsonNodeFactory and TextNode, Since it introduces quotes for string data.
+ */
+open class BluePrintJsonNodeFactory : JsonNodeFactory() {
+    override fun textNode(text: String): TextNode {
+        return BluePrintTextNode(text)
+    }
+}
+
+open class BluePrintTextNode(v: String) : TextNode(v) {
+    override fun toString(): String {
+        var len = this._value.length
+        len = len + 2 + (len shr 4)
+        val sb = StringBuilder(len)
+        CharTypes.appendQuoted(sb, this._value)
+        return sb.toString()
+    }
+
+}
\ No newline at end of file
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintJinjaTemplateService.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintJinjaTemplateService.kt
new file mode 100644
index 000000000..f835cbe52
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintJinjaTemplateService.kt
@@ -0,0 +1,52 @@
+/*
+ * Copyright © 2019 IBM, 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.
+ */
+
+package org.onap.ccsdk.cds.controllerblueprints.core.service
+
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.ObjectMapper
+import com.hubspot.jinjava.Jinjava
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
+import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintJsonNodeFactory
+import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BlueprintTemplateService
+import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
+
+
+object BluePrintJinjaTemplateService: BlueprintTemplateService {
+
+    override suspend fun generateContent(template: String, json: String, ignoreJsonNull: Boolean,
+                                 additionalContext: MutableMap<String, Any>): String {
+        // Load template
+        val jinJava = Jinjava()
+        val mapper = ObjectMapper()
+        val nodeFactory = BluePrintJsonNodeFactory()
+        mapper.nodeFactory = nodeFactory
+
+        // Add the JSON Data to the context
+        if (json.isNotEmpty()) {
+            val jsonNode = mapper.readValue<JsonNode>(json, JsonNode::class.java)
+                    ?: throw BluePrintProcessorException("couldn't get json node from json")
+            if (ignoreJsonNull)
+                JacksonUtils.removeJsonNullNode(jsonNode)
+            jsonNode.fields().forEach { entry ->
+                additionalContext[entry.key] = entry.value
+            }
+        }
+
+        return jinJava.render(template, additionalContext.toMap())
+    }
+}
+
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintTemplateService.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintTemplateService.kt
deleted file mode 100644
index 4e2184d3f..000000000
--- a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintTemplateService.kt
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright © 2017-2018 AT&T Intellectual Property.
- *
- * 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.
- */
-
-package org.onap.ccsdk.cds.controllerblueprints.core.service
-
-import com.fasterxml.jackson.core.io.CharTypes
-import com.fasterxml.jackson.databind.JsonNode
-import com.fasterxml.jackson.databind.ObjectMapper
-import com.fasterxml.jackson.databind.node.JsonNodeFactory
-import com.fasterxml.jackson.databind.node.TextNode
-import org.apache.commons.lang3.BooleanUtils
-import org.apache.commons.lang3.StringUtils
-import org.apache.velocity.VelocityContext
-import org.apache.velocity.app.Velocity
-import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
-import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
-import java.io.StringWriter
-
-open class BluePrintTemplateService {
-
-    companion object {
-
-        /**
-         * Generate Content from Velocity Template and JSON Content or property map.
-         */
-        fun generateContent(template: String, json: String = "",
-                            ignoreJsonNull: Boolean = false,
-                            additionalContext: Map<String, Any> = hashMapOf()): String {
-            Velocity.init()
-            val mapper = ObjectMapper()
-            val nodeFactory = BluePrintJsonNodeFactory()
-            mapper.nodeFactory = nodeFactory
-
-            val velocityContext = VelocityContext()
-            velocityContext.put("StringUtils", StringUtils::class.java)
-            velocityContext.put("BooleanUtils", BooleanUtils::class.java)
-
-            // Add the Custom Velocity Context API
-            additionalContext.forEach { name, value -> velocityContext.put(name, value) }
-
-            // Add the JSON Data to the context
-            if (json.isNotEmpty()) {
-                val jsonNode = mapper.readValue<JsonNode>(json, JsonNode::class.java)
-                    ?: throw BluePrintProcessorException("couldn't get json node from json")
-                if (ignoreJsonNull)
-                    JacksonUtils.removeJsonNullNode(jsonNode)
-                jsonNode.fields().forEach { entry ->
-                    velocityContext.put(entry.key, entry.value)
-                }
-            }
-
-            val stringWriter = StringWriter()
-            Velocity.evaluate(velocityContext, stringWriter, "TemplateData", template)
-            stringWriter.flush()
-            return stringWriter.toString()
-        }
-    }
-}
-
-/**
- * Customise JsonNodeFactory adn TextNode, Since it introduces quotes for string data.
- */
-open class BluePrintJsonNodeFactory : JsonNodeFactory() {
-    override fun textNode(text: String): TextNode {
-        return BluePrintTextNode(text)
-    }
-}
-
-open class BluePrintTextNode(v: String) : TextNode(v) {
-    override fun toString(): String {
-        var len = this._value.length
-        len = len + 2 + (len shr 4)
-        val sb = StringBuilder(len)
-        CharTypes.appendQuoted(sb, this._value)
-        return sb.toString()
-    }
-
-}
-
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintVelocityTemplateService.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintVelocityTemplateService.kt
new file mode 100644
index 000000000..4b6905bff
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintVelocityTemplateService.kt
@@ -0,0 +1,69 @@
+/*
+ * Copyright © 2017-2018 AT&T Intellectual Property.
+ *
+ * Modifications Copyright © 2019 IBM, 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.
+ */
+
+package org.onap.ccsdk.cds.controllerblueprints.core.service
+
+import com.fasterxml.jackson.databind.JsonNode
+import com.fasterxml.jackson.databind.ObjectMapper
+import org.apache.commons.lang3.BooleanUtils
+import org.apache.commons.lang3.StringUtils
+import org.apache.velocity.VelocityContext
+import org.apache.velocity.app.Velocity
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
+import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BluePrintJsonNodeFactory
+import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BlueprintTemplateService
+import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
+import java.io.StringWriter
+
+object BluePrintVelocityTemplateService: BlueprintTemplateService {
+
+    /**
+     * Generate Content from Velocity Template and JSON Content or property map.
+     */
+    override suspend fun generateContent(template: String, json: String, ignoreJsonNull: Boolean, additionalContext:
+    MutableMap<String, Any>): String {
+        Velocity.init()
+        val mapper = ObjectMapper()
+        val nodeFactory = BluePrintJsonNodeFactory()
+        mapper.nodeFactory = nodeFactory
+
+        val velocityContext = VelocityContext()
+        velocityContext.put("StringUtils", StringUtils::class.java)
+        velocityContext.put("BooleanUtils", BooleanUtils::class.java)
+
+        // Add the Custom Velocity Context API
+        additionalContext.forEach { name, value -> velocityContext.put(name, value) }
+
+        // Add the JSON Data to the context
+        if (json.isNotEmpty()) {
+            val jsonNode = mapper.readValue<JsonNode>(json, JsonNode::class.java)
+                    ?: throw BluePrintProcessorException("couldn't get json node from json")
+            if (ignoreJsonNull)
+                JacksonUtils.removeJsonNullNode(jsonNode)
+            jsonNode.fields().forEach { entry ->
+                velocityContext.put(entry.key, entry.value)
+            }
+        }
+
+        val stringWriter = StringWriter()
+        Velocity.evaluate(velocityContext, stringWriter, "TemplateData", template)
+        stringWriter.flush()
+        return stringWriter.toString()
+    }
+}
+
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BlueprintTemplateService.kt b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BlueprintTemplateService.kt
new file mode 100644
index 000000000..73457b986
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/src/main/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BlueprintTemplateService.kt
@@ -0,0 +1,49 @@
+/*
+ *  Copyright © 2019 IBM, 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.
+ */
+package org.onap.ccsdk.cds.controllerblueprints.core.service
+
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintConstants
+import org.onap.ccsdk.cds.controllerblueprints.core.BluePrintProcessorException
+import org.onap.ccsdk.cds.controllerblueprints.core.interfaces.BlueprintTemplateService
+import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
+
+class BluePrintTemplateService(val bluePrintRuntimeService: BluePrintRuntimeService<*>,
+                               val nodeTemplateName: String, val artifactName: String):
+        BlueprintTemplateService {
+
+    override suspend fun generateContent(template: String, json: String, ignoreJsonNull: Boolean, additionalContext: MutableMap<String, Any>): String {
+        val artifactDefinition = bluePrintRuntimeService.resolveNodeTemplateArtifactDefinition(nodeTemplateName, artifactName)
+        val templateType = artifactDefinition.type
+        return when (templateType) {
+            BluePrintConstants.ARTIFACT_JINJA_TYPE_NAME -> {
+                BluePrintJinjaTemplateService.generateContent(template, json, ignoreJsonNull, additionalContext)
+            }
+            BluePrintConstants.ARTIFACT_VELOCITY_TYPE_NAME -> {
+                BluePrintVelocityTemplateService.generateContent(template, json, ignoreJsonNull, additionalContext)
+            }
+            else -> {
+                throw BluePrintProcessorException("Unknown Artifact type, expecting ${BluePrintConstants.ARTIFACT_JINJA_TYPE_NAME}" +
+                        "or ${BluePrintConstants.ARTIFACT_VELOCITY_TYPE_NAME}")
+            }
+        }
+    }
+
+    suspend fun generateContentFromFiles(templatePath: String, jsonPath: String, ignoreJsonNull: Boolean, additionalContext: MutableMap<String, Any>): String {
+        val json = JacksonUtils.getClassPathFileContent(jsonPath)
+        val template = JacksonUtils.getClassPathFileContent(templatePath)
+        return generateContent(template, json, ignoreJsonNull, additionalContext)
+    }
+}
\ No newline at end of file
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/test/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintTemplateServiceTest.kt b/ms/controllerblueprints/modules/blueprint-core/src/test/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintTemplateServiceTest.kt
index 6a193c37e..e4227180b 100644
--- a/ms/controllerblueprints/modules/blueprint-core/src/test/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintTemplateServiceTest.kt
+++ b/ms/controllerblueprints/modules/blueprint-core/src/test/kotlin/org/onap/ccsdk/cds/controllerblueprints/core/service/BluePrintTemplateServiceTest.kt
@@ -1,6 +1,8 @@
 /*
  * Copyright © 2017-2018 AT&T Intellectual Property.
  *
+ * Modifications Copyright © 2019 IBM, 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
@@ -16,20 +18,85 @@
 
 package org.onap.ccsdk.cds.controllerblueprints.core.service
 
+import kotlinx.coroutines.runBlocking
 import org.junit.Test
+import org.junit.runner.RunWith
+import org.onap.ccsdk.cds.controllerblueprints.core.utils.BluePrintMetadataUtils
 import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
+import org.springframework.test.context.junit4.SpringRunner
+import kotlin.test.BeforeTest
 import kotlin.test.assertNotNull
 
+@RunWith(SpringRunner::class)
 class BluePrintTemplateServiceTest {
 
+    lateinit var blueprintRuntime: BluePrintRuntimeService<*>
+
+    @BeforeTest
+    fun setup() {
+        val blueprintBasePath: String = ("./../../../../components/model-catalog/blueprint-model/test-blueprint/baseconfiguration")
+        blueprintRuntime = BluePrintMetadataUtils.getBluePrintRuntime("1234", blueprintBasePath)
+    }
+
     @Test
-    fun testGenerateContent() {
+    fun testVelocityGeneratedContent() {
+       runBlocking {
+           val template = JacksonUtils.getClassPathFileContent("templates/base-config-velocity-template.vtl")
+           val json = JacksonUtils.getClassPathFileContent("templates/base-config-data-velocity.json")
 
-        val template = JacksonUtils.getClassPathFileContent("templates/base-config-template.vtl")
-        val json = JacksonUtils.getClassPathFileContent("templates/base-config-data.json")
+           val content = BluePrintVelocityTemplateService.generateContent(template, json)
+           assertNotNull(content, "failed to generate content for velocity template")
+       }
 
-        val content = BluePrintTemplateService.generateContent(template, json)
-        assertNotNull(content, "failed to generate content for velocity template")
+    }
+
+    @Test
+    fun testJinjaGeneratedContent() {
+        runBlocking {
+            val template = JacksonUtils.getClassPathFileContent("templates/base-config-jinja-template.jinja")
+            val json = JacksonUtils.getClassPathFileContent("templates/base-config-data-jinja.json")
+
+            var element: MutableMap<String, Any> = mutableMapOf()
+            element["additional_array"] = arrayListOf(hashMapOf("name" to "Element1", "location" to "Region0"), hashMapOf("name" to "Element2", "location" to "Region1"))
+
+            val content = BluePrintJinjaTemplateService.generateContent(template, json, false, element)
+            assertNotNull(content, "failed to generate content for velocity template")
+        }
 
     }
-}
\ No newline at end of file
+
+    @Test
+    fun testVelocityGeneratedContentFromFiles() {
+        runBlocking {
+            val bluePrintTemplateService = BluePrintTemplateService(blueprintRuntime,
+                    "resource-assignment", "baseconfig-template")
+            val templateFile = "templates/base-config-velocity-template.vtl"
+            val jsonFile = "templates/base-config-data-velocity.json"
+
+            val content = bluePrintTemplateService.generateContentFromFiles(
+                    templateFile, jsonFile, false, mutableMapOf())
+            assertNotNull(content, "failed to generate content for velocity template")
+        }
+
+    }
+
+    @Test
+    fun testJinjaGeneratedContentFromFiles() {
+        runBlocking {
+            var element: MutableMap<String, Any> = mutableMapOf()
+            element["additional_array"] = arrayListOf(hashMapOf("name" to "Element1", "location" to "Region0"), hashMapOf("name" to "Element2", "location" to "Region1"))
+
+            val bluePrintTemplateService = BluePrintTemplateService(blueprintRuntime,
+                    "resource-assignment", "another-template")
+
+            val templateFile = "templates/base-config-jinja-template.jinja"
+            val jsonFile = "templates/base-config-data-jinja.json"
+
+            val content = bluePrintTemplateService.generateContentFromFiles(
+                    templateFile,
+                    jsonFile, false, element)
+            assertNotNull(content, "failed to generate content for velocity template")
+        }
+    }
+}
+
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-data-jinja.json b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-data-jinja.json
new file mode 100644
index 000000000..bbfb38d80
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-data-jinja.json
@@ -0,0 +1,16 @@
+{
+  "node_hostname": "sdnc-host",
+  "node_backup_router_address": "2001:1890:1253::192:168:100:1",
+  "node_backup_router_d_address": "2011:1090:1253::112:158:100:1",
+  "servers": [
+    "Server1",
+    "Server2",
+    "Server3"
+  ],
+  "classes": [
+    "superuser-class",
+    "tacacs-adv-class",
+    "tacacs-base-class"
+  ],
+  "system_password": "teamops-system-password"
+}
\ No newline at end of file
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-data.json b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-data-velocity.json
index 2acc6fcdd..2acc6fcdd 100755
--- a/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-data.json
+++ b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-data-velocity.json
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-jinja-template.jinja b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-jinja-template.jinja
new file mode 100755
index 000000000..db900bc8b
--- /dev/null
+++ b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-jinja-template.jinja
@@ -0,0 +1,42 @@
+<configuration xmlns="http://xml.juniper.net/xnm/1.1/xnm"
+xmlns:a="http://xml.juniper.net/junos/15.1X49/junos">
+	<version>15.1X49-D50.3</version>
+	<groups>
+		<name>node0</name>
+		<system>
+        {%- for server in servers %}
+            <server-host-name>{{ server }}</server-host-name>
+        {%- endfor %}
+        </system>
+		<system>
+			<host-name>{{ node_hostname }}</host-name>
+			<backup-router>
+				<address>{{ node_backup_router_address }}</address>
+				<destination>{{ node_backup_router_d_address }}</destination>
+			</backup-router>
+			<login>
+				<message>ONAP information assets</message>
+				{%- for class in classes %}
+                <class>
+                    {{ class }}
+                </class>
+				{%- endfor %}
+				<user>
+					<name>readwrite</name>
+					<full-name>Read - Write Account Access</full-name>
+					<uid>1002</uid>
+					<class>tacacs-adv-class</class>
+					<authentication>
+						<encrypted-password>{{ system_password }}</encrypted-password>
+					</authentication>
+				</user>
+			</login>
+			{%- for element in additional_array %}
+			<additionalArray>
+                <name>{{ element.name }}</name>
+                <location>{{ element.location }}</location>
+            </additionalArray>
+            {%- endfor %}
+		</system>
+	</groups>
+</configuration>
\ No newline at end of file
diff --git a/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-template.vtl b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-velocity-template.vtl
index f7b1269b3..f7b1269b3 100755
--- a/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-template.vtl
+++ b/ms/controllerblueprints/modules/blueprint-core/src/test/resources/templates/base-config-velocity-template.vtl
diff --git a/ms/controllerblueprints/modules/service/pom.xml b/ms/controllerblueprints/modules/service/pom.xml
index f47a5b467..40a5c259d 100644
--- a/ms/controllerblueprints/modules/service/pom.xml
+++ b/ms/controllerblueprints/modules/service/pom.xml
@@ -4,6 +4,8 @@
   ~
   ~ Modifications Copyright © 2018 IBM.
   ~
+  ~ Modifications Copyright © 2019 IBM, 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
@@ -52,6 +54,10 @@
             <artifactId>velocity</artifactId>
         </dependency>
         <dependency>
+            <groupId>com.hubspot.jinjava</groupId>
+            <artifactId>jinjava</artifactId>
+        </dependency>
+        <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-webflux</artifactId>
         </dependency>
diff --git a/ms/controllerblueprints/parent/pom.xml b/ms/controllerblueprints/parent/pom.xml
index 50cfae197..276c4001b 100644
--- a/ms/controllerblueprints/parent/pom.xml
+++ b/ms/controllerblueprints/parent/pom.xml
@@ -2,7 +2,7 @@
 <!--
   ~ Copyright © 2017-2018 AT&T Intellectual Property.
   ~
-  ~ Modifications Copyright © 2018 IBM.
+  ~ Modifications Copyright © 2018 - 2019 IBM, Bell Canada
   ~
   ~ Licensed under the Apache License, Version 2.0 (the "License");
   ~ you may not use this file except in compliance with the License.
@@ -43,6 +43,7 @@
         <onap.logger.slf4j>1.2.2</onap.logger.slf4j>
         <powermock.version>1.7.4</powermock.version>
         <mockk.version>1.9</mockk.version>
+        <jinja.version>2.5.0</jinja.version>
     </properties>
     <dependencyManagement>
         <dependencies>
@@ -105,6 +106,11 @@
                 <version>1.7</version>
             </dependency>
             <dependency>
+                <groupId>com.hubspot.jinjava</groupId>
+                <artifactId>jinjava</artifactId>
+                <version>${jinja.version}</version>
+            </dependency>
+            <dependency>
                 <groupId>com.google.guava</groupId>
                 <artifactId>guava</artifactId>
                 <version>${guava.version}</version>