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/*
* Copyright 2016-2017, Nokia Corporation
*
* 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.
*/
package org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer;
import com.google.gson.Gson;
import com.google.gson.JsonArray;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import java.util.HashMap;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.Set;
import org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.onap.core.SelfRegistrationManager;
import org.slf4j.Logger;
import org.yaml.snakeyaml.Yaml;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer.OnapVnfdBuilder.getRequirement;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.packagetransformer.OnapVnfdBuilder.indent;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.child;
import static org.onap.vfc.nfvo.driver.vnfm.svnfm.nokia.util.CbamUtils.childElement;
import static org.slf4j.LoggerFactory.getLogger;
/**
* Transforms a CBAM package into an ONAP package
*/
public class OnapR2VnfdBuilder {
public static final String DESCRIPTION = "description";
public static final String PROPERTIES = "properties";
public static final String REQUIREMENTS = "requirements";
private static Logger logger = getLogger(OnapR2VnfdBuilder.class);
private static String trimUnit(String data) {
//FIXME the unit should not be trimmed VF-C bug
return data;
//data.trim().replaceAll("[^0-9]", "");
}
/**
* @param cbamVnfd the CBAM VNFD
* @return the converted ONAP VNFD
*/
public String toOnapVnfd(String cbamVnfd) {
JsonObject root = new Gson().toJsonTree(new Yaml().load(cbamVnfd)).getAsJsonObject();
JsonObject topologyTemplate = child(root, "topology_template");
JsonObject substitution_mappings = child(topologyTemplate, "substitution_mappings");
Map<String, JsonElement> virtualLinks = new HashMap<>();
if (topologyTemplate.has("node_templates")) {
Set<Map.Entry<String, JsonElement>> nodeTemplates = child(topologyTemplate, "node_templates").entrySet();
StringBuilder body = new StringBuilder();
for (Map.Entry<String, JsonElement> node : nodeTemplates) {
String type = childElement(node.getValue().getAsJsonObject(), "type").getAsString();
if ("tosca.nodes.nfv.VDU".equals(type)) {
body.append(buildVdu(node.getKey(), substitution_mappings, node.getValue().getAsJsonObject(), nodeTemplates));
} else if ("tosca.nodes.nfv.VirtualStorage".equals(type)) {
body.append(buildVolume(node.getKey(), node.getValue().getAsJsonObject()));
} else if ("tosca.nodes.nfv.VL".equals(type)) {
virtualLinks.put(node.getKey(), node.getValue());
body.append(buildVl(node.getValue().getAsJsonObject().get(PROPERTIES).getAsJsonObject(), node.getKey()));
} else if ("tosca.nodes.nfv.ICP".equals(type)) {
body.append(buildIcp(node.getKey(), node.getValue().getAsJsonObject()));
} else if ("tosca.nodes.nfv.ECP".equals(type)) {
body.append(buildEcp(node.getKey(), node.getValue(), nodeTemplates));
} else {
logger.warn("The {} type is not converted", type);
}
}
return buildHeader(topologyTemplate, virtualLinks) + body.toString();
}
return buildHeader(topologyTemplate, virtualLinks);
}
private String buildHeader(JsonObject toplogyTemplate, Map<String, JsonElement> virtualLinks) {
JsonObject substitution_mappings = child(toplogyTemplate, "substitution_mappings");
String vnfContent = buildVnf(substitution_mappings, virtualLinks);
return "tosca_definitions_version: tosca_simple_profile_yaml_1_1\n" +
"\n" +
"topology_template:\n" +
" inputs:\n" +
" etsi_config:\n" +
" type: string\n" +
" description: The ETSI configuration\n" +
" node_templates:\n" + vnfContent;
}
private JsonElement get(String name, Set<Map.Entry<String, JsonElement>> nodes) {
for (Map.Entry<String, JsonElement> node : nodes) {
if (name.equals(node.getKey())) {
return node.getValue();
}
}
throw new NoSuchElementException("The VNFD does not have a node called " + name + " but required by an other node");
}
private String buildVdu(String name, JsonObject vnf, JsonObject vdu, Set<Map.Entry<String, JsonElement>> nodes) {
String memorySize = "";
String cpuCount = "";
StringBuilder body = new StringBuilder();
JsonArray vduRequirements = childElement(vdu.getAsJsonObject(), REQUIREMENTS).getAsJsonArray();
for (int i = 0; i < vduRequirements.size(); i++) {
JsonObject requirement = vduRequirements.get(i).getAsJsonObject();
Map.Entry<String, JsonElement> next = requirement.entrySet().iterator().next();
String s = next.getKey();
if ("virtual_compute".equals(s)) {
JsonObject virtualCompute = get(next.getValue().getAsString(), nodes).getAsJsonObject();
cpuCount = childElement(child(child(virtualCompute, PROPERTIES), "virtual_cpu"), "num_virtual_cpu").getAsString();
memorySize = trimUnit(childElement(child(child(virtualCompute, PROPERTIES), "virtual_memory"), "virtual_mem_size").getAsString());
} else if ("virtual_storage".equals(s)) {
String item = indent(
"- virtual_storage:\n" +
" capability: tosca.capabilities.nfv.VirtualStorage\n" +
" node: " + next.getValue().getAsString() + "\n", 4);
body.append(item);
}
next.getValue();
}
JsonObject flavourProperties = child(child(child(vnf, "capabilities"), "deployment_flavour"), "properties");
JsonObject vduSizes = child(child(flavourProperties, "vdu_profile"), name);
String header = indent(name + ":\n" +
" type: tosca.nodes.nfv.Vdu.Compute\n" +
" properties:\n" +
" name: " + name + "\n" +
" description: " + childElement(child(vdu, PROPERTIES), "description").getAsString() + "\n" +
" configurable_properties:\n" +
" vdu_profile:\n" +
" min_number_of_instances: " + childElement(vduSizes, "min_number_of_instances").getAsString() + "\n" +
" max_number_of_instances: " + childElement(vduSizes, "max_number_of_instances").getAsString() + "\n" +
" capabilities:\n" +
" virtual_compute:\n" +
indent(
"properties:\n" +
" virtual_memory:\n" +
" virtual_mem_size: " + trimUnit(memorySize) + "\n" +
" virtual_cpu:\n" +
" num_virtual_cpu: " + cpuCount + "\n", 3) +
" " + REQUIREMENTS + ":\n", 2);
return header + body.toString();
}
private String buildEcp(String name, JsonElement ecp, Set<Map.Entry<String, JsonElement>> nodes) {
if (ecp.getAsJsonObject().has(REQUIREMENTS)) {
String icpName = getRequirement(ecp.getAsJsonObject().get(REQUIREMENTS).getAsJsonArray(), "internal_connection_point");
if (icpName != null) {
return buildEcpInternal(name, icpName, nodes);
} else {
logger.warn("The {} ecp does not have an internal connection point", name);
}
} else {
logger.warn("The {} ecp does not have an requirements section", name);
}
return "";
}
private String buildVnf(JsonObject vnf, Map<String, JsonElement> virtualLinks) {
JsonObject vnfProperties = child(vnf, PROPERTIES);
JsonObject flavourProperties = child(child(child(vnf, "capabilities"), "deployment_flavour"), "properties");
StringBuilder vlContent = new StringBuilder();
for (Map.Entry<String, JsonElement> virtualLink : virtualLinks.entrySet()) {
vlContent.append(indent("- virtual_link:\n" +
" capability: tosca.capabilities.nfv.VirtualLinkable\n" +
" node: " + virtualLink.getKey() + "\n", 4));
}
return indent("VNF:\n" +
" type: tosca.nodes.nfv.VNF\n" +
" " + PROPERTIES + ":\n" +
" descriptor_id: " + childElement(vnfProperties, "descriptor_id").getAsString() + "\n" +
" descriptor_version: " + childElement(vnfProperties, "descriptor_version").getAsString() + "\n" +
" provider: " + childElement(vnfProperties, "provider").getAsString() + "\n" +
" product_name: " + childElement(vnfProperties, "product_name").getAsString() + "\n" +
" software_version: " + childElement(vnfProperties, "software_version").getAsString() + "\n" +
" product_info_name: " + childElement(vnfProperties, "product_info_name").getAsString() + "\n" +
(vnfProperties.has("product_info_description") ?
" product_info_description: " + childElement(vnfProperties, "product_info_description").getAsString() + "\n" : "") +
" vnfm_info: [ " + SelfRegistrationManager.SERVICE_NAME + " ]\n" +
" flavour_id: " + childElement(flavourProperties, "flavour_id").getAsString() + "\n" +
" flavour_description: " + childElement(flavourProperties, "description").getAsString() + "\n", 2) +
" " + REQUIREMENTS + ":\n" +
vlContent.toString();
}
private String buildEcpInternal(String ecpName, String icpName, Set<Map.Entry<String, JsonElement>> nodes) {
JsonObject icpNode = get(icpName, nodes).getAsJsonObject();
if (icpNode.has(REQUIREMENTS)) {
String vdu = getRequirement(icpNode.getAsJsonObject().get(REQUIREMENTS).getAsJsonArray(), "virtual_binding");
//internal connection point is bound to VDU
if (vdu != null) {
return buildVduCpd(ecpName, vdu, child(icpNode, PROPERTIES));
} else {
logger.warn("The {} internal connection point of the {} ecp does not have a VDU", icpName, ecpName);
}
} else {
logger.warn("The {} internal connection point of the {} ecp does not have a requirements section", icpName, ecpName);
}
return "";
}
private String buildIcp(String name, JsonObject icp) {
if (icp.has(REQUIREMENTS)) {
JsonArray requirements = icp.get(REQUIREMENTS).getAsJsonArray();
String vdu = getRequirement(requirements, "virtual_binding");
String vl = getRequirement(requirements, "virtual_link");
if (vdu == null) {
logger.warn("The {} internal connection point does not have a VDU", name);
} else if (vl == null) {
logger.warn("The {} internal connection point does not have a VL", name);
} else {
JsonObject properties = child(icp, PROPERTIES);
return indent(name + ":\n" +
" type: tosca.nodes.nfv.VduCp\n" +
" " + PROPERTIES + ":\n" +
" layer_protocol: [ " + childElement(properties, "layer_protocol").getAsString() + " ]\n" +
(properties.has(DESCRIPTION) ?
" description: " + childElement(properties, DESCRIPTION).getAsString() + "\n" : "") +
" protocol_data: []\n" +
" trunk_mode: false\n" +
" requirements:\n" +
" - virtual_binding: " + vdu + "\n" +
" - virtual_link: " + vl + "\n", 2);
}
} else {
logger.warn("The {} internal connection point does not have a requirements section", name);
}
return "";
}
private String buildVduCpd(String name, String vdu, JsonObject properties) {
return indent(name + ":\n" +
" type: tosca.nodes.nfv.VduCp\n" +
" " + PROPERTIES + ":\n" +
" layer_protocol: [ " + childElement(properties, "layer_protocol").getAsString() + " ]\n" +
" protocol_data: [ ]\n" +
" trunk_mode: false\n" +
(properties.has(DESCRIPTION) ?
" description: " + childElement(properties, DESCRIPTION).getAsString() + "\n" : "") +
" requirements:\n" +
" - virtual_binding: " + vdu + "\n", 2);
}
private String buildVolume(String nodeName, JsonObject volume) {
return indent(nodeName + ":\n" +
" type: tosca.nodes.nfv.Vdu.VirtualStorage\n" +
" properties:\n" +
" type_of_storage: volume\n" +
" size_of_storage: " + trimUnit(childElement(child(volume, PROPERTIES), "size_of_storage").getAsString()) + "\n", 2);
}
private String buildVl(JsonObject vlProperties, String name) {
return indent(name + ":\n" +
" type: tosca.nodes.nfv.VnfVirtualLink\n" +
" properties:\n" +
" connectivity_type:\n" +
" layer_protocol: [ " + childElement(child(vlProperties, "connectivity_type"), "layer_protocol").getAsString() + " ]\n" +
" flow_pattern: " + childElement(child(vlProperties, "connectivity_type"), "flow_pattern").getAsString() + "\n" +
" vl_profile:\n" +
" max_bit_rate_requirements:\n" +
" root: " + Integer.MAX_VALUE + "\n" + //FIXME GAP IN CBAM TEMPLATE
" leaf: " + Integer.MAX_VALUE + "\n" + //FIXME GAP IN CBAM TEMPLATE
" min_bit_rate_requirements:\n" +
" root: 0\n" + //FIXME GAP IN CBAM TEMPLATE
" leaf: 0\n", 2); //FIXME GAP IN CBAM TEMPLATE
}
}
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