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.annotations.VisibleForTesting;
20 import com.google.gson.Gson;
21 import com.google.gson.JsonArray;
22 import com.google.gson.JsonElement;
23 import com.google.gson.JsonObject;
25 import java.util.NoSuchElementException;
27 import java.util.regex.Pattern;
28 import org.slf4j.Logger;
29 import org.yaml.snakeyaml.Yaml;
31 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.child;
32 import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.childElement;
33 import static org.slf4j.LoggerFactory.getLogger;
36 * Transforms a CBAM package into an ONAP package
38 public class OnapVnfdBuilder {
39 public static final String DESCRIPTION = "description";
40 public static final String PROPERTIES = "properties";
41 public static final String REQUIREMENTS = "requirements";
42 private static Logger logger = getLogger(OnapVnfdBuilder.class);
45 static String indent(String content, int prefixSize) {
46 StringBuilder sb = new StringBuilder();
47 for (int i = 0; i < prefixSize; i++) {
50 Pattern pattern = Pattern.compile("^(.*)$", Pattern.MULTILINE);
51 return pattern.matcher(content).replaceAll(sb.toString() + "$1");
55 * @param cbamVnfd the CBAM VNFD
56 * @return the converted ONAP VNFD
58 public String toOnapVnfd(String cbamVnfd) {
59 JsonObject root = new Gson().toJsonTree(new Yaml().load(cbamVnfd)).getAsJsonObject();
60 JsonObject topologyTemplate = child(root, "topology_template");
61 if (topologyTemplate.has("node_templates")) {
62 Set<Map.Entry<String, JsonElement>> nodeTemplates = child(topologyTemplate, "node_templates").entrySet();
63 StringBuilder body = new StringBuilder();
64 for (Map.Entry<String, JsonElement> node : nodeTemplates) {
65 String type = childElement(node.getValue().getAsJsonObject(), "type").getAsString();
66 if ("tosca.nodes.nfv.VDU".equals(type)) {
67 body.append(buildVdu(node.getKey(), node.getValue().getAsJsonObject(), nodeTemplates));
68 } else if ("tosca.nodes.nfv.VirtualStorage".equals(type)) {
69 body.append(buildVolume(node.getKey(), node.getValue().getAsJsonObject()));
70 } else if ("tosca.nodes.nfv.VL".equals(type)) {
71 body.append(buildVl(node.getKey()));
72 } else if ("tosca.nodes.nfv.ICP".equals(type)) {
73 body.append(buildIcp(node.getKey(), node.getValue().getAsJsonObject()));
74 } else if ("tosca.nodes.nfv.ECP".equals(type)) {
75 body.append(buildEcp(node.getKey(), node.getValue(), nodeTemplates));
77 logger.warn("The {} type is not converted", type);
80 return buildHeader(topologyTemplate) + body.toString();
82 return buildHeader(topologyTemplate);
85 private String buildHeader(JsonObject toplogyTemplate) {
86 JsonObject properties = child(child(toplogyTemplate, "substitution_mappings"), PROPERTIES);
87 String descriptorVersion = properties.get("descriptor_version").getAsString();
88 return "tosca_definitions_version: tosca_simple_yaml_1_0\n" +
92 " csarVersion: " + descriptorVersion + "\n" +
93 " csarProvider: " + properties.get("provider").getAsString() + "\n" +
95 " version: " + properties.get("software_version").getAsString() + "\n" +
97 " name: " + properties.get("product_name").getAsString() + "\n" +
98 " vnfdVersion: " + descriptorVersion + "\n\n" +
99 "topology_template:\n" +
100 " node_templates:\n";
103 private JsonElement get(String name, Set<Map.Entry<String, JsonElement>> nodes) {
104 for (Map.Entry<String, JsonElement> node : nodes) {
105 if (name.equals(node.getKey())) {
106 return node.getValue();
109 throw new NoSuchElementException("The VNFD does not have a node called " + name + " but required by an other node");
112 private String buildVdu(String name, JsonObject vdu, Set<Map.Entry<String, JsonElement>> nodes) {
113 String memorySize = "";
114 String cpuCount = "";
115 StringBuilder body = new StringBuilder();
116 JsonArray vduRequirements = childElement(vdu.getAsJsonObject(), REQUIREMENTS).getAsJsonArray();
117 for (int i = 0; i < vduRequirements.size(); i++) {
118 JsonObject requirement = vduRequirements.get(i).getAsJsonObject();
119 Map.Entry<String, JsonElement> next = requirement.entrySet().iterator().next();
120 String s = next.getKey();
121 if ("virtual_compute".equals(s)) {
122 JsonObject virtualCompute = get(next.getValue().getAsString(), nodes).getAsJsonObject();
123 cpuCount = childElement(child(child(virtualCompute, PROPERTIES), "virtual_cpu"), "num_virtual_cpu").getAsString();
124 memorySize = childElement(child(child(virtualCompute, PROPERTIES), "virtual_memory"), "virtual_mem_size").getAsString();
126 } else if ("virtual_storage".equals(s)) {
127 String item = indent(
128 "- virtual_storage:\n" +
129 " capability: tosca.capabilities.nfv.VirtualStorage\n" +
130 " node: " + next.getValue().getAsString() + "\n", 4);
136 String header = indent(name + ":\n" +
137 " type: tosca.nodes.nfv.VDU.Compute\n" +
139 " virtual_compute:\n" +
142 " virtual_memory:\n" +
143 " virtual_mem_size: " + memorySize + "\n" +
145 " num_virtual_cpu: " + cpuCount + "\n", 3) +
146 " " + REQUIREMENTS + ":\n", 2);
147 return header + body.toString();
150 private String buildEcp(String name, JsonElement ecp, Set<Map.Entry<String, JsonElement>> nodes) {
151 if (ecp.getAsJsonObject().has(REQUIREMENTS)) {
152 String icpName = getIcpName(ecp.getAsJsonObject().get(REQUIREMENTS).getAsJsonArray());
153 if (icpName != null) {
154 return buildEcpInternal(name, icpName, nodes);
156 logger.warn("The {} ecp does not have an internal connection point", name);
159 logger.warn("The {} ecp does not have an requirements section", name);
164 private String buildEcpInternal(String ecpName, String icpName, Set<Map.Entry<String, JsonElement>> nodes) {
165 JsonObject icpNode = get(icpName, nodes).getAsJsonObject();
166 if (icpNode.has(REQUIREMENTS)) {
167 String vdu = getVduOfIcp(icpNode.getAsJsonObject().get(REQUIREMENTS).getAsJsonArray());
168 //internal connection point is bound to VDU
170 return buildVduCpd(ecpName, vdu, child(icpNode, PROPERTIES));
172 logger.warn("The {} internal connection point of the {} ecp does not have a VDU", icpName, ecpName);
175 logger.warn("The {} internal connection point of the {} ecp does not have a requirements section", icpName, ecpName);
180 private String getVduOfIcp(JsonArray icpRequirements) {
182 for (int i = 0; i < icpRequirements.size(); i++) {
183 JsonElement requirement = icpRequirements.get(i);
184 Map.Entry<String, JsonElement> next = requirement.getAsJsonObject().entrySet().iterator().next();
185 String s = next.getKey();
186 if ("virtual_binding".equals(s)) {
187 vdu = next.getValue().getAsString();
193 private String getIcpName(JsonArray requirements) {
194 String icpName = null;
195 for (int i = 0; i < requirements.size(); i++) {
196 JsonElement requirement = requirements.get(i);
197 Map.Entry<String, JsonElement> next = requirement.getAsJsonObject().entrySet().iterator().next();
198 String s = next.getKey();
199 if ("internal_connection_point".equals(s)) {
200 icpName = next.getValue().getAsString();
206 private String buildIcp(String name, JsonObject icp) {
207 if (icp.has(REQUIREMENTS)) {
208 JsonArray requirements = icp.get(REQUIREMENTS).getAsJsonArray();
211 for (int i = 0; i < requirements.size(); i++) {
212 JsonElement requirement = requirements.get(i);
213 Map.Entry<String, JsonElement> next = requirement.getAsJsonObject().entrySet().iterator().next();
214 String s = next.getKey();
215 if ("virtual_binding".equals(s)) {
216 vdu = next.getValue().getAsString();
217 } else if ("virtual_link".equals(s)) {
218 vl = next.getValue().getAsString();
222 logger.warn("The {} internal connection point does not have a VDU", name);
223 } else if (vl == null) {
224 logger.warn("The {} internal connection point does not have a VL", name);
226 JsonObject properties = child(icp, PROPERTIES);
227 return indent(name + ":\n" +
228 " type: tosca.nodes.nfv.VduCpd\n" +
229 " " + PROPERTIES + ":\n" +
230 " layer_protocol: " + childElement(properties, "layer_protocol").getAsString() + "\n" +
231 " role: leaf\n" + (properties.has(DESCRIPTION) ?
232 " description: " + childElement(properties, DESCRIPTION).getAsString() + "\n" : "") +
234 " - virtual_binding: " + vdu + "\n" +
235 " - virtual_link: " + vl + "\n", 2);
238 logger.warn("The {} internal connection point does not have a requirements section", name);
243 private String buildVduCpd(String name, String vdu, JsonObject properties) {
244 return indent(name + ":\n" +
245 " type: tosca.nodes.nfv.VduCpd\n" +
246 " " + PROPERTIES + ":\n" +
247 " layer_protocol: " + childElement(properties, "layer_protocol").getAsString() + "\n" +
249 (properties.has(DESCRIPTION) ?
250 " description: " + childElement(properties, DESCRIPTION).getAsString() + "\n" : "") +
252 " - virtual_binding: " + vdu + "\n", 2);
255 private String buildVolume(String nodeName, JsonObject volume) {
256 return indent(nodeName + ":\n" +
257 " type: tosca.nodes.nfv.VDU.VirtualStorage\n" +
259 " id: " + nodeName + "\n" +
260 " type_of_storage: volume\n" +
261 " size_of_storage: " + childElement(child(volume, PROPERTIES), "size_of_storage").getAsString() + "\n", 2);
264 private String buildVl(String name) {
265 return indent(name + ":\n" +
266 " type: tosca.nodes.nfv.VnfVirtualLinkDesc\n" +
270 " flavourId: notUsed\n", 2);