2 * Copyright 2016-2017, Nokia Corporation
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer;
19 import com.google.common.collect.Sets;
20 import com.google.gson.*;
21 import java.util.HashMap;
24 import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.vnfm.LifecycleManager;
25 import org.slf4j.Logger;
26 import org.yaml.snakeyaml.Yaml;
28 import static java.util.stream.Collectors.toSet;
30 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.*;
31 import static org.slf4j.LoggerFactory.getLogger;
34 * Transforms a CBAM package into an ONAP package
36 public class OnapR2HeatPackageBuilder {
37 public static final String ETSI_MODIFIABLE_ATTRIBUTES_EXTENSTION = "etsi_modifiable_attributes_extenstion_";
38 public static final String IMAGE_NAME = "_image_name";
39 public static final String FLAVOR_NAME = "_flavor_name";
40 public static final String NET_ID = "_net_id";
41 private static Logger logger = getLogger(OnapR2HeatPackageBuilder.class);
42 public static final String BASE_ENV_FILE_NAME = "base.env";
43 public static final String BASE_YAML_FILE_NAME = "base.yaml";
45 private Set<String> autoManagedExtensions = Sets.newHashSet(LifecycleManager.ONAP_CSAR_ID, LifecycleManager.EXTERNAL_VNFM_ID);
47 Map<String, String> processVnfd(String cbamVnfd) {
48 Map<String, String> files = new HashMap<>();
49 JsonObject root = new Gson().toJsonTree(new Yaml().load(cbamVnfd)).getAsJsonObject();
50 JsonObject topologyTemplate = child(root, "topology_template");
51 JsonObject substitutionMappings = child(topologyTemplate, "substitution_mappings");
52 JsonObject capabilities = child(substitutionMappings, "capabilities");
53 JsonObject deploymentFlavour = child(capabilities, "deployment_flavour");
54 JsonArray policies = childElement(topologyTemplate, "policies").getAsJsonArray();
55 JsonObject manifest = new JsonObject();
56 manifest.addProperty("name", "ONAP VNF package");
57 manifest.addProperty("description", "");
58 JsonArray data = new JsonArray();
59 manifest.add("data", data);
60 JsonObject deploymentFlavorProperties = child(deploymentFlavour, "properties");
61 if (deploymentFlavorProperties.has("scaling_aspects")) {
62 JsonObject scalingAspects = child(deploymentFlavorProperties, "scaling_aspects");
63 for (Map.Entry<String, JsonElement> scalingAspect : scalingAspects.entrySet()) {
64 processAspect(files, data, policies, scalingAspect.getKey(), childElement(scalingAspect.getValue().getAsJsonObject(), "max_scale_level").getAsLong());
67 processBaseIncrement(topologyTemplate, files, policies, data);
68 files.put("MANIFEST.json", new GsonBuilder().setPrettyPrinting().create().toJson(manifest));
72 private void processBaseIncrement(JsonObject topologyTemplate, Map<String, String> files, JsonArray policies, JsonArray data) {
73 StringBuilder envContent = prepareEvnContent();
74 StringBuilder yamlContent = prepareYamlContent();
75 if (topologyTemplate.has("node_templates")) {
76 JsonObject nodeTemplates = child(topologyTemplate, "node_templates");
77 processEcps(nodeTemplates, envContent, yamlContent);
78 for (Map.Entry<String, JsonElement> vdu : filterType(nodeTemplates, "tosca.nodes.nfv.VDU")) {
79 addImageAndFlavor(envContent, yamlContent, vdu);
82 processModifiableAttributes(topologyTemplate, envContent, yamlContent);
83 data.add(buildManifestEntry(BASE_ENV_FILE_NAME, BASE_YAML_FILE_NAME, true));
84 files.put(BASE_ENV_FILE_NAME, envContent.toString());
85 files.put(BASE_YAML_FILE_NAME, yamlContent.toString());
88 private void processModifiableAttributes(JsonObject topologyTemplate, StringBuilder envContent, StringBuilder yamlContent) {
89 JsonObject capabilities = child(child(topologyTemplate, "substitution_mappings"), "capabilities");
90 if (capabilities.has("vnf")) {
91 JsonObject vnf = child(capabilities, "vnf");
92 if (vnf.has("properties")) {
93 JsonObject properties = child(vnf, "properties");
94 if (properties.has("modifiable_attributes")) {
95 JsonObject modifiableAttributes = child(properties, "modifiable_attributes");
96 if (modifiableAttributes.has("extensions")) {
97 JsonObject extensions = child(modifiableAttributes, "extensions");
98 for (Map.Entry<String, JsonElement> extension : extensions.entrySet()) {
99 if (!autoManagedExtensions.contains(extension.getKey())) {
100 addParameter(yamlContent, envContent, ETSI_MODIFIABLE_ATTRIBUTES_EXTENSTION + extension.getKey(), "Modifiable attribute", "Modifiable attribute for " + extension.getKey());
109 public static Set<Map.Entry<String, JsonElement>> filterType(JsonObject nodeTemplates, String type) {
110 return nodeTemplates.entrySet().stream().filter(e -> e.getValue().getAsJsonObject().get("type").equals(type)).collect(toSet());
113 private void processEcps(JsonObject nodeTemplates, StringBuilder envContent, StringBuilder yamlContent) {
114 for (Map.Entry<String, JsonElement> node : filterType(nodeTemplates, "tosca.nodes.nfv.ECP")) {
115 envContent.append(" " + node.getKey() + NET_ID + ": PUT YOUR NETWORK ID HERE\n");
116 addYamlParameter(yamlContent, node.getKey() + NET_ID, "Network id", "Network identifier for " + node.getKey() + " ECP");
120 private StringBuilder prepareYamlContent() {
121 StringBuilder yamlContent = new StringBuilder();
122 yamlContent.append("heat_template_version: 2013-05-23\n");
123 yamlContent.append("parameters:\n");
127 private void processAspect(Map<String, String> files, JsonArray data, JsonArray policies, String aspectName, long maxScaleLevel) {
128 JsonObject aspect = locateAspect(locateHeatPolicy(policies), aspectName);
129 StringBuilder envContent = prepareEvnContent();
130 StringBuilder yamlContent = prepareYamlContent();
131 if (aspect.has("vdus")) {
132 processMapping(aspect, envContent, yamlContent);
134 if (maxScaleLevel > 1001) {
135 throw buildFatalFailure(logger, "Refusing to create more than 1001 scaling levels");
137 envContent.append(" etsi.scalingAspectId: "+ aspectName + "\n");
138 for (int scaleIndex = 0; scaleIndex < maxScaleLevel; scaleIndex++) {
139 String envFileName = "module_" + aspectName + "_" + scaleIndex + ".env";
140 files.put(envFileName, envContent.toString());
141 String yamlFileName = "module_" + aspectName + "_" + scaleIndex + ".yaml";
142 files.put(yamlFileName, yamlContent.toString());
143 data.add(buildManifestEntry(envFileName, yamlFileName, false));
147 private StringBuilder prepareEvnContent() {
148 StringBuilder envContent = new StringBuilder();
149 envContent.append("parameters:\n");
153 private JsonObject buildManifestEntry(String envFileName, String yamlFileName, boolean base) {
154 JsonObject manifestEntry = new JsonObject();
155 manifestEntry.addProperty("file", yamlFileName);
156 manifestEntry.addProperty("type", "HEAT");
157 manifestEntry.addProperty("isBase", Boolean.toString(base));
158 JsonArray envEntries = new JsonArray();
159 manifestEntry.add("data", envEntries);
160 JsonObject envEntry = new JsonObject();
161 envEntries.add(envEntry);
162 envEntry.addProperty("file", envFileName);
163 envEntry.addProperty("type", "HEAT_ENV");
164 return manifestEntry;
167 private void processMapping(JsonObject mapping, StringBuilder envContent, StringBuilder yamlContent) {
168 for (Map.Entry<String, JsonElement> vdusElement : child(mapping, "vdus").entrySet()) {
169 addImageAndFlavor(envContent, yamlContent, vdusElement);
171 if (mapping.has("externalConnectionPoints")) {
172 for (Map.Entry<String, JsonElement> externalConnectionPoints : child(mapping, "externalConnectionPoints").entrySet()) {
173 addParameter(yamlContent, envContent, externalConnectionPoints.getKey() + "_net_id", "Network id", "Network to be used for " + externalConnectionPoints.getKey() + " ECP");
174 addParameter(yamlContent, envContent, externalConnectionPoints.getKey() + "_subnet_id", "Subnet id", "Subnet to be used for " + externalConnectionPoints.getKey() + " ECP");
179 private void addImageAndFlavor(StringBuilder envContent, StringBuilder yamlContent, Map.Entry<String, JsonElement> vdusElement) {
180 String vdu = vdusElement.getKey();
181 addParameter(yamlContent, envContent, vdu + IMAGE_NAME, "Image name or identifier", "Image to be used for " + vdu + " VDU");
182 addParameter(yamlContent, envContent, vdu + FLAVOR_NAME, "Flavor name or identifier", "Flavor to be used for " + vdu + " VDU");
185 private void addParameter(StringBuilder yamlContent, StringBuilder envContent, String key, String label, String description) {
186 addYamlParameter(yamlContent, key, label, description);
187 envContent.append(" " + key + ": PUT YOUR " + label.toUpperCase() + " HERE\n");
190 private void addYamlParameter(StringBuilder yamlContent, String key, String label, String description) {
191 yamlContent.append(" " + key + ":\n");
192 yamlContent.append(" type: string\n");
193 yamlContent.append(" label: " + label + "\n");
194 yamlContent.append(" description: " + description + "\n");
197 private JsonObject locateHeatPolicy(JsonArray policies) {
198 for (int index = 0; index < policies.size(); index++) {
199 JsonObject c = policies.get(index).getAsJsonObject();
200 JsonObject policy = c.getAsJsonObject().entrySet().iterator().next().getValue().getAsJsonObject();
201 if ("tosca.policies.nfv.HeatMapping".equals(childElement(policy, "type").getAsString())) {
205 throw buildFatalFailure(logger, "The heat_mapping section is missing from VNFD");
208 private JsonObject locateAspect(JsonObject policy, String aspectName) {
209 for (Map.Entry<String, JsonElement> aspect : child(child(policy, "properties"), "aspects").entrySet()) {
210 if (aspect.getKey().equals(aspectName)) {
211 return aspect.getValue().getAsJsonObject();
214 throw buildFatalFailure(logger, "Unable to locate " + aspectName + " in heat policy");