2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright © 2017-2018 AT&T Intellectual Property. All rights reserved.
6 * Copyright © 2017-2018 European Software Marketing Ltd.
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END=========================================================
22 package org.onap.aai.babel.csar.vnfcatalog;
24 import java.io.IOException;
25 import java.nio.file.Files;
26 import java.nio.file.Path;
27 import java.util.Collection;
28 import java.util.Collections;
29 import java.util.List;
31 import java.util.Map.Entry;
32 import java.util.Objects;
33 import java.util.stream.Collectors;
34 import java.util.stream.Stream;
35 import org.apache.commons.io.FileUtils;
36 import org.apache.commons.lang3.time.StopWatch;
37 import org.onap.aai.babel.logging.ApplicationMsgs;
38 import org.onap.aai.babel.logging.LogHelper;
39 import org.onap.aai.babel.parser.ToscaParser;
40 import org.onap.aai.babel.service.data.BabelArtifact;
41 import org.onap.sdc.tosca.parser.api.ISdcCsarHelper;
42 import org.onap.sdc.tosca.parser.enums.SdcTypes;
43 import org.onap.sdc.tosca.parser.exceptions.SdcToscaParserException;
44 import org.onap.sdc.tosca.parser.impl.SdcToscaParserFactory;
45 import org.onap.sdc.toscaparser.api.NodeTemplate;
47 import javax.ws.rs.core.Response;
50 * This class is responsible for extracting Virtual Network Function (VNF) information from a TOSCA 1.1 CSAR package.
53 * CSAR is a compressed format that stores multiple TOSCA files. Each TOSCA file may define Topology Templates and/or
54 * Node Templates along with other model data.
58 * A VNF is a virtualized functional capability (e.g. a Router) that may be defined by an external Vendor. Within the
59 * model defined by the TOSCA files the VNF is considered to be a Resource (part of a Service).
63 * A VNF is specified by a Topology Template. Because this TOSCA construct does not allow properties to be defined
64 * directly, Node Templates are defined (identified by a VNF type value) storing the VNF metadata and properties.
68 * A VNF may be composed of multiple images, each running on its own Virtual Machine. The function of a deployed image
69 * is designated the Virtual Function Component (VFC). A VFC is a sub-component of the VNF. A VFC may have different
70 * "Flavors" (see the Deployment Flavors description below).
74 * An individual VNF (template) may be deployed with varying configuration values, according to
75 * environment/customer/business needs. For example, a VNF deployed in a testing environment would typically use fewer
76 * computational resources than in a production setting.
80 * A Vendor may define one or more "Deployment Flavors". A Deployment Flavor describes a set of pre-determined
81 * parameterised values for a specific aspect of the model. Within the TOSCA model there is a DeploymentFlavor
82 * definition, which has its own data types, and also an ImageInfo definition.
85 public class VnfVendorImageExtractor {
87 private static LogHelper applicationLogger = LogHelper.INSTANCE;
89 // The following constants describe the expected naming conventions for TOSCA Node Templates which
90 // store the VNF configuration and the VFC data items.
92 // The name of the property (for a VNF Configuration type) storing the Images Information
93 private static final String IMAGES = "images";
95 // Name of property key that contains the value of the software version
96 private static final String SOFTWARE_VERSION = "software_version";
98 // The name of the property (for a VNF Configuration type) storing the Vendor Information
99 private static final String VNF_CONF_TYPE_PROPERTY_VENDOR_INFO_CONTAINER = "allowed_flavors";
101 // Name of property key that contains the Vendor Information
102 private static final String VENDOR_INFO = "vendor_info";
104 // Name of property key that contains the value of model of the Vendor application
105 private static final String VENDOR_MODEL = "vendor_model";
108 * This method is responsible for parsing the vnfConfiguration entity in the same topology_template (there's an
109 * assumption that there's only one per file, awaiting verification).
112 * It is possible that CSAR file does not contain a vnfConfiguration and this is valid.
116 * Where multiple vnfConfigurations are found an exception will be thrown.
120 * The ASDC model anticipates the following permutations of vnfConfiguration and multiflavorVFC:
124 * <li>Single vnfConfiguration, single multiFlavorVFC with multiple images.</li>
125 * <li>Single vnfConfiguration, multi multiFlavorVFC with single images.</li>
129 * All ImageInfo sections found apply to all "Deployment Flavors", therefore we can apply a cross product of
130 * "Deployment Flavors" x "ImageInfo"
134 * compressed format that stores multiple TOSCA files and in particular a vnfConfiguration
135 * @return BabelArtifact VendorImageConfiguration objects created during processing represented as the Babel service
136 * public data structure
137 * @throws ToscaToCatalogException
138 * if the CSAR content is not valid
140 public BabelArtifact extract(byte[] csar) throws ToscaToCatalogException {
141 StopWatch stopwatch = new StopWatch();
144 Objects.requireNonNull(csar, "A CSAR file must be supplied");
145 applicationLogger.info(ApplicationMsgs.DISTRIBUTION_EVENT, "Extracting VNF Configuration data");
147 List<VendorImageConfiguration> vendorImageConfigurations;
151 path = createTempFile(csar);
152 vendorImageConfigurations = createVendorImageConfigurations(path.toAbsolutePath().toString());
153 } catch (InvalidNumberOfNodesException | IOException | SdcToscaParserException e) {
154 throw new ToscaToCatalogException(
155 "An error occurred trying to get the VNF Catalog from a CSAR file. " + e.getLocalizedMessage(), e);
158 FileUtils.deleteQuietly(path.toFile());
162 applicationLogger.info(ApplicationMsgs.DISTRIBUTION_EVENT, vendorImageConfigurations.toString());
164 return ConfigurationsToBabelArtifactConverter.convert(vendorImageConfigurations);
168 * Creates a temporary file to store the CSAR content.
172 * @return Path to a temporary file containing the CSAR bytes
173 * @throws IOException
174 * if an I/O error occurs or the temporary-file directory does not exist
176 private Path createTempFile(byte[] bytes) throws IOException {
177 Path path = Files.createTempFile("temp", ".csar");
178 applicationLogger.debug("Created temp file " + path);
179 Files.write(path, bytes);
184 * Build VNF Vendor Image Configurations for the VNF Configuration node (if present) in the CSAR file referenced by
187 * @param csarFilepath
188 * the path to the CSAR file
189 * @return a List of Vendor Image Configurations
190 * @throws SdcToscaParserException
191 * if the SDC TOSCA parser determines that the CSAR is invalid
192 * @throws ToscaToCatalogException
193 * if there are no software versions defined for an image
194 * @throws InvalidNumberOfNodesException
195 * if multiple VNF configuration nodes are found in the CSAR
197 private List<VendorImageConfiguration> createVendorImageConfigurations(String csarFilepath)
198 throws SdcToscaParserException, ToscaToCatalogException, InvalidNumberOfNodesException {
199 ISdcCsarHelper csarHelper = SdcToscaParserFactory.getInstance().getSdcCsarHelper(csarFilepath);
201 List<NodeTemplate> serviceVfList = ToscaParser.getServiceNodeTemplates(csarHelper)
202 .filter(ToscaParser.filterOnType(SdcTypes.VF)).collect(Collectors.toList());
204 List<NodeTemplate> vnfConfigs = serviceVfList.stream()
205 .flatMap(vf -> vf.getSubMappingToscaTemplate().getNodeTemplates().stream()
206 .filter(ToscaParser.filterOnType(SdcTypes.VFC)) //
207 .filter(vfc -> vfc.getType().endsWith("VnfConfiguration")))
208 .filter(Objects::nonNull) //
209 .collect(Collectors.toList());
211 if (!vnfConfigs.isEmpty()) {
212 NodeTemplate vnfConfigurationNode = vnfConfigs.get(0);
214 applicationLogger.info(ApplicationMsgs.DISTRIBUTION_EVENT,
215 String.format("Found VNF Configuration node \"%s\"", vnfConfigurationNode));
217 if (vnfConfigs.size() > 1) {
218 throw new InvalidNumberOfNodesException("Only one VNF configuration node is allowed however "
219 + vnfConfigs.size() + " nodes were found in the CSAR.");
223 return createVendorImageConfigurations(serviceVfList, vnfConfigurationNode);
224 } catch (IllegalArgumentException e) {
225 applicationLogger.setContextValue(LogHelper.MdcParameter.RESPONSE_CODE, String.valueOf(Response.Status.BAD_REQUEST.getStatusCode()));
226 applicationLogger.setContextValue(LogHelper.MdcParameter.RESPONSE_DESCRIPTION, "Invalid Csar");
227 applicationLogger.error(ApplicationMsgs.INVALID_CSAR_FILE, e);
228 throw new ToscaToCatalogException(e.getMessage());
232 return Collections.emptyList();
236 * Build VNF Vendor Image Configurations for each Service VF, using the flavors of the specified VNF Configuration
239 * @param serviceVfList
240 * the Service level VF node templates
241 * @param vnfConfigurationNode
242 * the VNF node template
243 * @return a new List of Vendor Image Configurations
245 private List<VendorImageConfiguration> createVendorImageConfigurations(List<NodeTemplate> serviceVfList,
246 NodeTemplate vnfConfigurationNode) throws IllegalArgumentException{
247 List<VendorImageConfiguration> vendorImageConfigurations = Collections.emptyList();
249 Object allowedFlavorProperties =
250 vnfConfigurationNode.getPropertyValue(VNF_CONF_TYPE_PROPERTY_VENDOR_INFO_CONTAINER);
252 if (allowedFlavorProperties instanceof Map) {
253 @SuppressWarnings("unchecked")
254 Collection<Map<String, Map<String, String>>> flavorMaps =
255 ((Map<?, Map<String, Map<String, String>>>) allowedFlavorProperties).values();
257 vendorImageConfigurations = serviceVfList.stream() //
258 .flatMap(node -> buildVendorImageConfigurations(flavorMaps, node)) //
259 .collect(Collectors.toList());
261 applicationLogger.info(ApplicationMsgs.DISTRIBUTION_EVENT,
262 "Built " + vendorImageConfigurations.size() + " Vendor Image Configurations");
265 return vendorImageConfigurations;
269 * Builds the Vendor Image configurations.
272 * the collection of flavors and the properties for those flavors
273 * @param vfNodeTemplate
274 * the node template for the VF
276 * @return a stream of VendorImageConfiguration objects
277 * @throws IllegalArgumentException
278 * if the VF has no child node templates which contain images (complex properties) that have software
281 Stream<VendorImageConfiguration> buildVendorImageConfigurations(
282 Collection<Map<String, Map<String, String>>> flavorMaps, NodeTemplate vfNodeTemplate) throws IllegalArgumentException {
283 String resourceVendor = vfNodeTemplate.getMetaData().getValue("resourceVendor");
284 applicationLogger.debug("Resource Vendor " + resourceVendor);
286 List<String> softwareVersions =
287 extractSoftwareVersions(vfNodeTemplate.getSubMappingToscaTemplate().getNodeTemplates());
288 applicationLogger.debug("Software Versions: " + softwareVersions);
290 if (softwareVersions.isEmpty()) {
291 throw new IllegalArgumentException("No software versions could be found for this CSAR file");
294 return flavorMaps.stream() //
295 .map(value -> value.entrySet().stream() //
296 .filter(entry -> VENDOR_INFO.equals(entry.getKey())) //
297 .map(e -> e.getValue().get(VENDOR_MODEL)) //
299 .flatMap(vendorModel -> softwareVersions.stream().map(
300 version -> new VendorImageConfiguration(vendorModel.orElse(null), resourceVendor, version)));
304 * Extract Image software versions from node templates.
306 * @param nodeTemplates
307 * the node templates to search for software versions
308 * @return a List of Software Version Strings
310 @SuppressWarnings("unchecked")
311 List<String> extractSoftwareVersions(Collection<NodeTemplate> nodeTemplates) {
312 return nodeTemplates.stream() //
313 .filter(nodeTemplate -> nodeTemplate.getPropertyValue(IMAGES) != null) //
314 .flatMap(imagesNode -> ((Map<String, Object>) imagesNode.getPropertyValue(IMAGES)).entrySet().stream())
315 .map(property -> findSoftwareVersion((Map<String, Object>) property.getValue()))
316 .collect(Collectors.toList());
320 * Get the first software_version value from the properties Map.
323 * the properties map containing the software_version key
324 * @return the software_version value as a String, or else null
326 private String findSoftwareVersion(Map<String, Object> properties) {
327 applicationLogger.debug("Finding " + SOFTWARE_VERSION + " from " + properties);
329 return properties.entrySet().stream() //
330 .filter(entry -> SOFTWARE_VERSION.equals(entry.getKey())) //
331 .map(Entry::getValue).findFirst() //
332 .map(Object::toString).orElse(null);