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/*
* 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.removeNullNode
object BluePrintJinjaTemplateService {
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)
jsonNode.removeNullNode()
jsonNode.fields().forEach { entry ->
additionalContext[entry.key] = entry.value
}
}
return jinJava.render(template, additionalContext.toMap())
}
}
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