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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.deserializer;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.core.ObjectCodec;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.JsonNode;
import it.polito.verigraph.tosca.yaml.beans.AntispamConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.CacheConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.ConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.DpiConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.EndhostConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.EndpointConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.FieldModifierConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.FirewallConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.MailClientConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.MailServerConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.NatConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.VpnAccessConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.VpnExitConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.WebClientConfigurationYaml;
import it.polito.verigraph.tosca.yaml.beans.WebServerConfigurationYaml;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
public class YamlConfigurationDeserializer extends JsonDeserializer<ConfigurationYaml> {
@Override
public ConfigurationYaml deserialize(JsonParser jp, DeserializationContext ctxt)
throws IOException, JsonProcessingException {
ObjectCodec oc = jp.getCodec();
JsonNode node = oc.readTree(jp);
ConfigurationYaml deserialized;
boolean emptyConfig = false;
try {
//Get the content from the array wrapping the JSON configuration
final Iterator<JsonNode> elements = node.elements();
if(!elements.hasNext()) {
//System.out.println("The provided configuration is empty.");
emptyConfig = true;
}
switch ((String)ctxt.findInjectableValue("type", null, null)) {
case "antispam":
if(emptyConfig) {
deserialized = new AntispamConfigurationYaml();
break;
}
AntispamConfigurationYaml antispam = new AntispamConfigurationYaml();
antispam.setSources(new ArrayList<String>());
while (elements.hasNext()) {
antispam.getSources().add(elements.next().asText());
}
deserialized = antispam;
break;
case "cache":
if(emptyConfig) {
deserialized = new CacheConfigurationYaml();
break;
}
CacheConfigurationYaml cache = new CacheConfigurationYaml();
cache.setResources(new ArrayList<String>());
while(elements.hasNext()) {
cache.getResources().add(elements.next().asText());
}
deserialized = cache;
break;
case "dpi":
if(emptyConfig) {
deserialized = new DpiConfigurationYaml();
break;
}
DpiConfigurationYaml dpi = new DpiConfigurationYaml();
dpi.setNotAllowedList(new ArrayList<String>());
while(elements.hasNext()) {
dpi.getNotAllowedList().add(elements.next().asText());
}
deserialized = dpi;
break;
case "endhost":
if(emptyConfig) {
deserialized = new EndhostConfigurationYaml();
break;
}
EndhostConfigurationYaml endhost = new EndhostConfigurationYaml();
JsonNode thisnode = elements.next();
if(thisnode.has("body"))
endhost.setBody(thisnode.findValue("body").asText());
if(thisnode.has("sequence"))
endhost.setSequence(Integer.valueOf(thisnode.findValue("sequence").asText()));
if(thisnode.has("protocol"))
endhost.setProtocol(thisnode.findValue("protocol").asText());
if(thisnode.has("email_from"))
endhost.setEmail_from(thisnode.findValue("email_from").asText());
if(thisnode.has("options"))
endhost.setOptions(thisnode.findValue("options").asText());
if(thisnode.has("url"))
endhost.setUrl(thisnode.findValue("url").asText());
if(thisnode.has("destination"))
endhost.setDestination(thisnode.findValue("destination").asText());
deserialized = endhost;
break;
case "endpoint":
if(emptyConfig) {
deserialized = new EndpointConfigurationYaml();
break;
}
EndpointConfigurationYaml endpoint = new EndpointConfigurationYaml();
deserialized = endpoint;
break;
case "fieldmodifier":
if(emptyConfig) {
deserialized = new FieldModifierConfigurationYaml();
break;
}
FieldModifierConfigurationYaml fieldmodifier = new FieldModifierConfigurationYaml();
deserialized = fieldmodifier;
break;
case "firewall":
if(emptyConfig) {
deserialized = new FirewallConfigurationYaml();
break;
}
FirewallConfigurationYaml firewall = new FirewallConfigurationYaml();
firewall.setElements(new HashMap<String,String>());
JsonNode current = elements.next();
Iterator<Map.Entry<String, JsonNode>> iter = current.fields();
while (iter.hasNext()) {
Map.Entry<String, JsonNode> entry = iter.next();
firewall.getElements().put(entry.getKey(), entry.getValue().asText());
}
deserialized = firewall;
break;
case "mailclient":
if(emptyConfig) {
deserialized = new MailClientConfigurationYaml();
break;
}
MailClientConfigurationYaml mailclient = new MailClientConfigurationYaml();
mailclient.setMailserver(elements.next().findValue("mailserver").asText());
deserialized = mailclient;
break;
case "mailserver":
if(emptyConfig) {
deserialized = new MailServerConfigurationYaml();
break;
}
MailServerConfigurationYaml mailserver = new MailServerConfigurationYaml();
deserialized = mailserver;
break;
case "nat":
if(emptyConfig) {
deserialized = new NatConfigurationYaml();
break;
}
NatConfigurationYaml nat = new NatConfigurationYaml();
nat.setSources(new ArrayList<String>());
while(elements.hasNext()) {
nat.getSources().add(elements.next().asText());
}
deserialized = nat;
break;
case "vpnaccess":
if(emptyConfig) {
deserialized = new VpnAccessConfigurationYaml();
break;
}
VpnAccessConfigurationYaml vpnaccess = new VpnAccessConfigurationYaml();
vpnaccess.setVpnexit(elements.next().findValue("vpnexit").asText());
deserialized = vpnaccess;
break;
case "vpnexit":
if(emptyConfig) {
deserialized = new VpnExitConfigurationYaml();
break;
}
VpnExitConfigurationYaml vpnexit = new VpnExitConfigurationYaml();
vpnexit.setVpnaccess(elements.next().findValue("vpnaccess").asText());
deserialized = vpnexit;
break;
case "webclient":
if(emptyConfig) {
deserialized = new WebClientConfigurationYaml();
break;
}
WebClientConfigurationYaml webclient = new WebClientConfigurationYaml();
webclient.setNameWebServer(elements.next().findValue("webserver").asText());
deserialized = webclient;
break;
case "webserver":
if(emptyConfig) {
deserialized = new WebServerConfigurationYaml();
break;
}
WebServerConfigurationYaml webserver = new WebServerConfigurationYaml();
deserialized = webserver;
break;
default:
deserialized = new FieldModifierConfigurationYaml();
break;
}
} catch (Exception e) {
// TODO Auto-generated catch block
//System.err.println("Error converting the Json to YamlConfiguration");
e.printStackTrace();
return new FieldModifierConfigurationYaml();
}
return deserialized;
}
}
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