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/*-
* ============LICENSE_START=======================================================
* ONAP CLAMP
* ================================================================================
* Copyright (C) 2017 AT&T 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============================================
* ===================================================================
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
*/
package org.onap.clamp.clds.client.req;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import com.fasterxml.jackson.databind.node.ArrayNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.dataformat.yaml.snakeyaml.Yaml;
import java.util.HashMap;
import java.util.Map;
import org.onap.clamp.clds.exception.TcaRequestFormatterException;
import org.onap.clamp.clds.model.prop.ModelProperties;
import org.onap.clamp.clds.model.prop.Tca;
import org.onap.clamp.clds.model.prop.TcaItem;
import org.onap.clamp.clds.model.prop.TcaThreshold;
import org.onap.clamp.clds.model.refprop.RefProp;
/**
* Construct the requests for TCA policy and SDC.
*
*/
public class TcaRequestFormatter {
protected static final EELFLogger logger = EELFManager.getInstance().getLogger(TcaRequestFormatter.class);
protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
/**
* Hide the default constructor.
*/
private TcaRequestFormatter() {
}
/**
* Format Tca Policy JSON request.
*
* @param refProp
* The refProp generally created by Spring, it's an access on the
* clds-references.properties file
* @param modelProperties
* The Model Prop created from BPMN JSON and BPMN properties JSON
* @return The Json string containing that should be sent to policy
*/
public static String createPolicyJson(RefProp refProp, ModelProperties modelProperties) {
try {
String service = modelProperties.getGlobal().getService();
Tca tca = modelProperties.getType(Tca.class);
modelProperties.setCurrentModelElementId(tca.getId());
ObjectNode rootNode = (ObjectNode) refProp.getJsonTemplate("tca.policy.template", service);
String policyName = modelProperties.getCurrentPolicyScopeAndPolicyName();
((ObjectNode) rootNode).put("policyName", policyName);
((ObjectNode) rootNode).put("description", "MicroService vCPE Policy");
((ObjectNode) rootNode.get("content")).replace("tca_policy", createPolicyContent(refProp, modelProperties, service, policyName, tca));
String tcaPolicyReq = rootNode.toString();
logger.info("tcaPolicyReq=" + tcaPolicyReq);
return tcaPolicyReq;
} catch (Exception e) {
throw new TcaRequestFormatterException("Exception caught when attempting to create the policy JSON", e);
}
}
/**
* Format Tca Policy Content JSON
*
* @param refProp
* The refProp generally created by Spring, it's an access on the
* clds-references.properties file
* @param modelProperties
* The Model Prop created from BPMN JSON and BPMN properties JSON
* @return The Json string containing that should be sent to policy
*/
public static JsonNode createPolicyContent(RefProp refProp, ModelProperties modelProperties, String service, String policyName, Tca tca) {
try {
if (null == service) {
service = modelProperties.getGlobal().getService();
}
if (null == tca){
tca = modelProperties.getType(Tca.class);
modelProperties.setCurrentModelElementId(tca.getId());
}
if (null == policyName) {
policyName = modelProperties.getCurrentPolicyScopeAndPolicyName();
}
ObjectNode rootNode = (ObjectNode) refProp.getJsonTemplate("tca.template", service);
((ObjectNode) rootNode.get("metricsPerEventName").get(0)).put("eventName", tca.getTcaItem().getEventName());
((ObjectNode) rootNode.get("metricsPerEventName").get(0)).put("policyName", policyName);
((ObjectNode) rootNode.get("metricsPerEventName").get(0)).put("controlLoopSchemaType", tca.getTcaItem().getControlLoopSchemaType());
ObjectNode thresholdsParent = ((ObjectNode) rootNode.get("metricsPerEventName").get(0));
addThresholds(refProp, service, thresholdsParent, tca.getTcaItem(), modelProperties);
logger.info("tcaPolicyContent=" + rootNode.toString());
return (JsonNode) rootNode;
} catch (Exception e) {
throw new TcaRequestFormatterException("Exception caught when attempting to create the policy content JSON", e);
}
}
/**
* Add threshold values to the existing policy JSON.
*
* @param refProp
* The refProp generally created by Spring, it's an access on the
* clds-references.properties file
* @param service
* The Service value extracted from Global section of the Bpmn
* Properties JSON
* @param appendToNode
* The JSON structure from where the thresholds section must be
* added
* @param tcaItem
* The TCA item contained in the Tca object
* @param modelProperties
* The Model Properties created from BPMN JSON and BPMN
* properties JSON
*/
private static void addThresholds(RefProp refProp, String service, ObjectNode appendToNode, TcaItem tcaItem,
ModelProperties modelProperties) {
try {
ArrayNode tcaNodes = appendToNode.withArray("thresholds");
ObjectNode tcaNode = (ObjectNode) refProp.getJsonTemplate("tca.thresholds.template", service);
for (TcaThreshold tcaThreshold : tcaItem.getTcaThresholds()) {
tcaNode.put("closedLoopControlName", modelProperties.getControlNameAndPolicyUniqueId());
tcaNode.put("fieldPath", tcaThreshold.getFieldPath());
tcaNode.put("thresholdValue", tcaThreshold.getThreshold());
tcaNode.put("direction", tcaThreshold.getOperator());
tcaNode.put("closedLoopEventStatus", tcaThreshold.getClosedLoopEventStatus());
tcaNodes.add(tcaNode);
}
} catch (Exception e) {
throw new TcaRequestFormatterException("Exception caught when attempting to create the thresholds JSON", e);
}
}
/**
* This method updates the blueprint that is received in the UI with the TCA
* Json.
*
* @param refProp
* * The refProp generally created by Spring, it's an access on
* the clds-references.properties file
* @param modelProperties
* The Model Prop created from BPMN JSON and BPMN properties JSON
* @param yamlValue
* The yaml string received from the UI
* @return The updated YAML as a string
*/
public static String updatedBlueprintWithConfiguration(RefProp refProp, ModelProperties modelProperties,
String yamlValue) {
try {
String jsonPolicy = ((ObjectNode) createPolicyContent(refProp, modelProperties, null, null, null)).toString();
logger.info("Yaml that will be updated:" + yamlValue);
Yaml yaml = new Yaml();
Map<String, Object> loadedYaml = (Map<String, Object>) yaml.load(yamlValue);
Map<String, Object> nodeTemplates = (Map<String, Object>) loadedYaml.get("node_templates");
//add policy_0 section in blueprint
Map<String, Object> policyObject = new HashMap<String, Object> ();
Map<String, Object> policyIdObject = new HashMap<String, Object> ();
String policyPrefix = refProp.getStringValue("tca.policyid.prefix");
policyIdObject.put("policy_id", policyPrefix + modelProperties.getCurrentPolicyScopeAndPolicyName());
policyObject.put("type", "dcae.nodes.policy");
policyObject.put("properties", policyIdObject);
nodeTemplates.put("policy_0", policyObject);
Map<String, Object> tcaObject = (Map<String, Object>) nodeTemplates.get("tca_tca");
Map<String, Object> propsObject = (Map<String, Object>) tcaObject.get("properties");
Map<String, Object> appPreferences = (Map<String, Object>) propsObject.get("app_preferences");
appPreferences.put("tca_policy", jsonPolicy);
String blueprint = yaml.dump(loadedYaml);
logger.info("Yaml updated:" + blueprint);
return blueprint;
} catch (Exception e) {
throw new TcaRequestFormatterException("Exception caught when attempting to update the blueprint", e);
}
}
}
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