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/*******************************************************************************
* Copyright (c) 2018 Politecnico di Torino and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Apache License, Version 2.0
* which accompanies this distribution, and is available at
* http://www.apache.org/licenses/LICENSE-2.0
*******************************************************************************/
package it.polito.verigraph.tosca.converter.yaml;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.databind.InjectableValues;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
import it.polito.neo4j.jaxb.FunctionalTypes;
import it.polito.verigraph.exception.BadRequestException;
import it.polito.verigraph.model.Graph;
import it.polito.verigraph.model.Neighbour;
import it.polito.verigraph.model.Node;
import it.polito.verigraph.tosca.deserializer.YamlConfigurationDeserializer;
import it.polito.verigraph.tosca.yaml.beans.AntispamConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.AntispamNode;
import it.polito.verigraph.tosca.yaml.beans.CacheConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.CacheNode;
import it.polito.verigraph.tosca.yaml.beans.ConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.DpiConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.DpiNode;
import it.polito.verigraph.tosca.yaml.beans.EndhostConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.EndhostNode;
import it.polito.verigraph.tosca.yaml.beans.EndpointConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.EndpointNode;
import it.polito.verigraph.tosca.yaml.beans.FieldModifierConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.FieldModifierNode;
import it.polito.verigraph.tosca.yaml.beans.FirewallConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.FirewallNode;
import it.polito.verigraph.tosca.yaml.beans.MailClientConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.MailClientNode;
import it.polito.verigraph.tosca.yaml.beans.MailServerConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.MailServerNode;
import it.polito.verigraph.tosca.yaml.beans.NatConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.NatNode;
import it.polito.verigraph.tosca.yaml.beans.NodeTemplateYaml;
import it.polito.verigraph.tosca.yaml.beans.RelationshipTemplateYaml;
import it.polito.verigraph.tosca.yaml.beans.ServiceTemplateYaml;
import it.polito.verigraph.tosca.yaml.beans.TopologyTemplateYaml;
import it.polito.verigraph.tosca.yaml.beans.VpnAccessConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.VpnAccessNode;
import it.polito.verigraph.tosca.yaml.beans.VpnExitConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.VpnExitNode;
import it.polito.verigraph.tosca.yaml.beans.WebClientConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.WebClientNode;
import it.polito.verigraph.tosca.yaml.beans.WebServerConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.WebServerNode;
public class GraphToYaml {
public static ServiceTemplateYaml mapGraphYaml(Graph graph) {
ServiceTemplateYaml serviceTemplate = new ServiceTemplateYaml();
TopologyTemplateYaml topologyTemplate = new TopologyTemplateYaml();
topologyTemplate.setNode_templates(new HashMap<String,NodeTemplateYaml>());
topologyTemplate.setRelationship_templates(new HashMap<String,RelationshipTemplateYaml>());
serviceTemplate.setMetadata(new HashMap<String,String>());
//Neighbour does not have a neighbourID!
//RelationshipTemplate does, so it is an incremental number for each node
long i = 0; //This counter will act as a fake incremental id of relationships
for(Node node : graph.getNodes().values()) {
NodeTemplateYaml nodeTemplate;
try {
nodeTemplate = mapNodeYaml(node);
} catch (IOException e) {
throw new BadRequestException("Error while mapping a Node in Yaml object.");
}
topologyTemplate.getNode_templates().put(String.valueOf(node.getId()), nodeTemplate);
//shall we catch NumberFormatException?
Map<Long,Neighbour> neighMap = node.getNeighbours();
for (Map.Entry<Long, Neighbour> myentry : neighMap.entrySet()) {
Neighbour neigh = myentry.getValue();
if (graph.getNodes().containsKey(neigh.getId())) {
// I have to check that because if I'm mapping a path (and not a graph)
//I could have as neighbour a node which is not in the path
RelationshipTemplateYaml relat = mapRelationshipYaml(node, neigh);
topologyTemplate.getRelationship_templates().put(String.valueOf(i), relat);
i++;
}
}
}
serviceTemplate.getMetadata().put("template_id", String.valueOf(graph.getId()));
serviceTemplate.setTopology_template(topologyTemplate);
return serviceTemplate;
}
private static NodeTemplateYaml mapNodeYaml(Node node) throws JsonParseException, JsonMappingException, IOException {
ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
JsonNode configNode = node.getConfiguration().getConfiguration();
SimpleModule module = new SimpleModule();
//Passing the configuration type to the Deserializer context
module.addDeserializer(ConfigurationYaml.class, new YamlConfigurationDeserializer());
mapper.registerModule(module);
//Here we use the custom deserializer to convert the JsonNode into a Yaml bean
//The injectable value allows to provide an additional info to the deserializer that will be able to
//know that it is parsing a certain type of Configuration.
ConfigurationYaml yamlConfig = mapper
.reader(new InjectableValues.Std().addValue("type", node.getFunctional_type().toLowerCase()))
.forType(ConfigurationYaml.class).readValue(configNode);
FunctionalTypes nodeType = FunctionalTypes.valueOf(node.getFunctional_type().toUpperCase());
switch(nodeType) {
case ANTISPAM:
AntispamNode antispamNode = new AntispamNode();
antispamNode.setName(node.getName());
antispamNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
antispamNode.setProperties((AntispamConfigurationYaml) yamlConfig);
return antispamNode;
case CACHE:
CacheNode cacheNode = new CacheNode();
cacheNode.setName(node.getName());
cacheNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
cacheNode.setProperties((CacheConfigurationYaml) yamlConfig);
return cacheNode;
case DPI:
DpiNode dpiNode = new DpiNode();
dpiNode.setName(node.getName());
dpiNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
dpiNode.setProperties((DpiConfigurationYaml) yamlConfig);
return dpiNode;
case ENDHOST:
EndhostNode endhostNode = new EndhostNode();
endhostNode.setName(node.getName());
endhostNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
endhostNode.setProperties((EndhostConfigurationYaml) yamlConfig);
return endhostNode;
case ENDPOINT:
EndpointNode endpointNode = new EndpointNode();
endpointNode.setName(node.getName());
endpointNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
endpointNode.setProperties((EndpointConfigurationYaml) yamlConfig);
return endpointNode;
case FIELDMODIFIER:
FieldModifierNode fieldmodifierNode = new FieldModifierNode();
fieldmodifierNode.setName(node.getName());
fieldmodifierNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
fieldmodifierNode.setProperties((FieldModifierConfigurationYaml) yamlConfig);
return fieldmodifierNode;
case FIREWALL:
FirewallNode firewallNode = new FirewallNode();
firewallNode.setName(node.getName());
firewallNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
firewallNode.setProperties((FirewallConfigurationYaml) yamlConfig);
return firewallNode;
case MAILCLIENT:
MailClientNode mailclientNode = new MailClientNode();
mailclientNode.setName(node.getName());
mailclientNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
mailclientNode.setProperties((MailClientConfigurationYaml) yamlConfig);
return mailclientNode;
case MAILSERVER:
MailServerNode mailserverNode = new MailServerNode();
mailserverNode.setName(node.getName());
mailserverNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
mailserverNode.setProperties((MailServerConfigurationYaml) yamlConfig);
return mailserverNode;
case NAT:
NatNode natNode = new NatNode();
natNode.setName(node.getName());
natNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
natNode.setProperties((NatConfigurationYaml) yamlConfig);
return natNode;
case VPNACCESS:
VpnAccessNode vpnaccessNode = new VpnAccessNode();
vpnaccessNode.setName(node.getName());
vpnaccessNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
vpnaccessNode.setProperties((VpnAccessConfigurationYaml) yamlConfig);
return vpnaccessNode;
case VPNEXIT:
VpnExitNode vpnexitNode = new VpnExitNode();
vpnexitNode.setName(node.getName());
vpnexitNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
vpnexitNode.setProperties((VpnExitConfigurationYaml) yamlConfig);
return vpnexitNode;
case WEBCLIENT:
WebClientNode webclientNode = new WebClientNode();
webclientNode.setName(node.getName());
webclientNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
webclientNode.setProperties((WebClientConfigurationYaml) yamlConfig);
return webclientNode;
case WEBSERVER:
WebServerNode webserverNode = new WebServerNode();
webserverNode.setName(node.getName());
webserverNode.setType("verigraph.nodeTypes." +
node.getFunctional_type().substring(0, 1).toUpperCase() +
node.getFunctional_type().substring(1));
webserverNode.setProperties((WebServerConfigurationYaml) yamlConfig);
return webserverNode;
default:
FieldModifierNode defaultNode = new FieldModifierNode();
defaultNode.setName(node.getName());
defaultNode.setType("verigraph.nodeTypes.Fieldmodifier");
defaultNode.setProperties(new FieldModifierConfigurationYaml());
return defaultNode;
}
}
private static RelationshipTemplateYaml mapRelationshipYaml(Node sourceNode, Neighbour neigh) {
RelationshipTemplateYaml relationship = new RelationshipTemplateYaml();
relationship.setProperties(new HashMap<String,String>());
relationship.setType("verigraph.relationshipType.generic");
relationship.getProperties().put("source_id", String.valueOf(sourceNode.getId())); //to be catched?
relationship.getProperties().put("target_id", String.valueOf(neigh.getId()));
relationship.getProperties().put("name", sourceNode.getName()+"to"+neigh.getName());
return relationship;
}
}
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