diff options
Diffstat (limited to 'so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/nsd/parser/NetworkServiceDescriptorParser.java')
-rw-r--r-- | so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/nsd/parser/NetworkServiceDescriptorParser.java | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/nsd/parser/NetworkServiceDescriptorParser.java b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/nsd/parser/NetworkServiceDescriptorParser.java new file mode 100644 index 0000000000..7df2e6973d --- /dev/null +++ b/so-etsi-nfvo/so-etsi-nfvo-ns-lcm/so-etsi-nfvo-ns-lcm-bpmn-flows/src/main/java/org/onap/so/etsi/nfvo/ns/lcm/bpmn/flows/nsd/parser/NetworkServiceDescriptorParser.java @@ -0,0 +1,213 @@ +/*- + * ============LICENSE_START======================================================= + * Copyright (C) 2020 Nordix Foundation. + * ================================================================================ + * 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. + * + * SPDX-License-Identifier: Apache-2.0 + * ============LICENSE_END========================================================= + */ +package org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.parser; + +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.Map.Entry; +import java.util.Optional; +import java.util.zip.ZipEntry; +import java.util.zip.ZipInputStream; +import org.apache.commons.io.IOUtils; +import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.FileEntry; +import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.NetworkServiceDescriptor; +import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.ToscaMetadata; +import org.onap.so.etsi.nfvo.ns.lcm.bpmn.flows.nsd.VirtualNetworkFunction; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.stereotype.Service; + +/** + * @author Waqas Ikram (waqas.ikram@est.tech) + * + */ +@Service +public class NetworkServiceDescriptorParser { + public static final String NS_NODE_TYPE = "tosca.nodes.nfv.NS"; + private static final String NODE_TYPE = "node_type"; + private static final String SUBSTITUTION_MAPPINGS = "substitution_mappings"; + private static final Logger logger = LoggerFactory.getLogger(NetworkServiceDescriptorParser.class); + private static final String VNF_TYPE = "tosca.nodes.nfv.VNF"; + private static final String PROPERTIES = "properties"; + private static final String TYPE = "type"; + private static final String NODE_TEMPLATES = "node_templates"; + private static final String TOPOLOGY_TEMPLATE = "topology_template"; + private static final String ENTRY_DEFINITIONS = "Entry-Definitions"; + private static final String TOSCA_META_PATH_FILE_NAME = "TOSCA-Metadata/TOSCA.meta"; + private final ToscaMetadataParser toscaMetadataParser; + private final FileParser fileParser; + + @Autowired + public NetworkServiceDescriptorParser(final ToscaMetadataParser toscaMetadataParser, final FileParser fileParser) { + this.toscaMetadataParser = toscaMetadataParser; + this.fileParser = fileParser; + } + + public Optional<NetworkServiceDescriptor> parse(final byte[] zipBytes) { + try { + final Map<String, FileEntry> files = getZipContent(zipBytes); + if (isMetaFilePresent(files)) { + final Optional<ToscaMetadata> optional = + toscaMetadataParser.parse(files.get(TOSCA_META_PATH_FILE_NAME)); + if (optional.isPresent()) { + final ToscaMetadata toscaMetadata = optional.get(); + logger.info("Parsed ToscaMetadata {}", toscaMetadata); + final String entryDefinitionFile = toscaMetadata.getEntry(ENTRY_DEFINITIONS); + if (entryDefinitionFile != null && files.containsKey(entryDefinitionFile)) { + final Map<String, Object> fileContent = + fileParser.getFileContent(files.get(entryDefinitionFile)); + final Map<String, Object> topologyTemplates = getTopologyTemplates(fileContent); + final Map<String, Object> nodeTemplates = getNodeTemplates(topologyTemplates); + + final Optional<NetworkServiceDescriptor> nsdOptional = + getNetworkServiceDescriptor(topologyTemplates); + if (nsdOptional.isPresent()) { + final NetworkServiceDescriptor networkServiceDescriptor = nsdOptional.get(); + networkServiceDescriptor.setVnfs(getVirtualNetworkFunctions(nodeTemplates)); + return Optional.of(networkServiceDescriptor); + } + + } + } + + } + + logger.error("Unable to find {} file in {}", TOSCA_META_PATH_FILE_NAME, files); + } catch (final Exception exception) { + logger.error("Unable to parse nsd zip content", exception); + } + return Optional.empty(); + } + + @SuppressWarnings("unchecked") + private Optional<NetworkServiceDescriptor> getNetworkServiceDescriptor( + final Map<String, Object> topologyTemplates) { + final Map<String, Object> substitutionMappings = + (Map<String, Object>) topologyTemplates.get(SUBSTITUTION_MAPPINGS); + final Object nodeType = substitutionMappings.get(NODE_TYPE); + if (substitutionMappings != null && nodeType != null && NS_NODE_TYPE.equals(nodeType)) { + final NetworkServiceDescriptor networkServiceDescriptor = new NetworkServiceDescriptor(); + networkServiceDescriptor.setType(nodeType.toString()); + networkServiceDescriptor.setProperties((Map<String, Object>) substitutionMappings.get(PROPERTIES)); + return Optional.of(networkServiceDescriptor); + } + logger.error("No {} found in fileContent: {}", SUBSTITUTION_MAPPINGS, topologyTemplates); + + return Optional.empty(); + } + + private List<VirtualNetworkFunction> getVirtualNetworkFunctions(final Map<String, Object> nodeTemplates) { + final List<VirtualNetworkFunction> vnfs = new ArrayList<>(); + for (final Entry<String, Object> entry : nodeTemplates.entrySet()) { + @SuppressWarnings("unchecked") + final Map<String, Object> entryValue = (Map<String, Object>) entry.getValue(); + final Object type = entryValue.get(TYPE); + if (type != null && type.equals(VNF_TYPE)) { + @SuppressWarnings("unchecked") + final Map<String, Object> vnfProperties = (Map<String, Object>) entryValue.get(PROPERTIES); + final VirtualNetworkFunction vnf = new VirtualNetworkFunction(); + vnf.setVnfName(entry.getKey()); + + if (vnfProperties != null && !vnfProperties.isEmpty()) { + final Object vnfDescriptorId = vnfProperties.get("descriptor_id"); + @SuppressWarnings("unchecked") + final List<String> vnfmInfoList = (List<String>) vnfProperties.get("vnfm_info"); + if (vnfDescriptorId != null && vnfmInfoList != null) { + vnf.setVnfmInfoList(vnfmInfoList); + vnf.setVnfdId(vnfDescriptorId.toString()); + vnf.setProperties(vnfProperties); + vnfs.add(vnf); + } else { + logger.warn("descriptor_id missing {}", entryValue); + } + } + } + + } + return vnfs; + } + + private Map<String, Object> getNodeTemplates(final Map<String, Object> topologyTemplates) { + @SuppressWarnings("unchecked") + final Map<String, Object> nodeTemplates = (Map<String, Object>) topologyTemplates.get(NODE_TEMPLATES); + if (nodeTemplates != null) { + logger.debug("Found nodeTemplates: {}", topologyTemplates); + return nodeTemplates; + } + logger.error("No {} found in fileContent: {}", NODE_TEMPLATES, topologyTemplates); + return Collections.emptyMap(); + } + + private Map<String, Object> getTopologyTemplates(final Map<String, Object> fileContent) { + @SuppressWarnings("unchecked") + final Map<String, Object> topologyTemplates = (Map<String, Object>) fileContent.get(TOPOLOGY_TEMPLATE); + if (topologyTemplates != null) { + logger.debug("Found {}: {}", TOPOLOGY_TEMPLATE, topologyTemplates); + + return topologyTemplates; + } + logger.error("No {} found in fileContent: {}", TOPOLOGY_TEMPLATE, fileContent); + return Collections.emptyMap(); + } + + private boolean isMetaFilePresent(final Map<String, FileEntry> files) { + return files.containsKey(TOSCA_META_PATH_FILE_NAME); + } + + private Map<String, FileEntry> getZipContent(final byte[] zipBytes) { + final Map<String, FileEntry> files = new HashMap<>(); + try (final ZipInputStream inputZipStream = new ZipInputStream(new ByteArrayInputStream(zipBytes));) { + ZipEntry zipEntry; + while ((zipEntry = inputZipStream.getNextEntry()) != null) { + logger.info("{} : {}", zipEntry.getName(), zipEntry.isDirectory()); + if (files.get(zipEntry.getName()) != null) { + logger.warn("{} File entry already exists ...", zipEntry.getName()); + } else { + final FileEntry fileEntry = new FileEntry().filePath(zipEntry.getName()) + .fileContent(getBytes(inputZipStream)).isDirectory(zipEntry.isDirectory()); + files.put(zipEntry.getName(), fileEntry); + + } + + } + return files; + } catch (final Exception exception) { + logger.error("Unable to parse nsd zip content", exception); + return Collections.emptyMap(); + } + } + + private byte[] getBytes(final ZipInputStream inputZipStream) throws IOException { + try { + return IOUtils.toByteArray(inputZipStream); + } catch (final IOException exception) { + logger.error("Could not read bytes from file", exception); + throw exception; + } + } + + +} |