/**
* Copyright 2013, Big Switch Networks, Inc.
*
* 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 net.floodlightcontroller.loadbalancer;
import java.io.IOException;
import java.util.Collection;
import net.floodlightcontroller.packet.IPv4;
import com.fasterxml.jackson.core.JsonParseException;
import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonToken;
import com.fasterxml.jackson.databind.MappingJsonFactory;
import org.restlet.resource.Delete;
import org.restlet.resource.Get;
import org.restlet.resource.Post;
import org.restlet.resource.Put;
import org.restlet.resource.ServerResource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class VipsResource extends ServerResource {
protected static Logger log = LoggerFactory.getLogger(VipsResource.class);
@Get("json")
public Collection <LBVip> retrieve() {
ILoadBalancerService lbs =
(ILoadBalancerService)getContext().getAttributes().
get(ILoadBalancerService.class.getCanonicalName());
String vipId = (String) getRequestAttributes().get("vip");
if (vipId!=null)
return lbs.listVip(vipId);
else
return lbs.listVips();
}
@Put
@Post
public LBVip createVip(String postData) {
LBVip vip=null;
try {
vip=jsonToVip(postData);
} catch (IOException e) {
log.error("Could not parse JSON {}", e.getMessage());
}
ILoadBalancerService lbs =
(ILoadBalancerService)getContext().getAttributes().
get(ILoadBalancerService.class.getCanonicalName());
String vipId = (String) getRequestAttributes().get("vip");
if (vipId != null)
return lbs.updateVip(vip);
else
return lbs.createVip(vip);
}
@Delete
public int removeVip() {
String vipId = (String) getRequestAttributes().get("vip");
ILoadBalancerService lbs =
(ILoadBalancerService)getContext().getAttributes().
get(ILoadBalancerService.class.getCanonicalName());
return lbs.removeVip(vipId);
}
protected LBVip jsonToVip(String json) throws IOException {
if (json==null) return null;
MappingJsonFactory f = new MappingJsonFactory();
JsonParser jp;
LBVip vip = new LBVip();
try {
jp = f.createJsonParser(json);
} catch (JsonParseException e) {
throw new IOException(e);
}
jp.nextToken();
if (jp.getCurrentToken() != JsonToken.START_OBJECT) {
throw new IOException("Expected START_OBJECT");
}
while (jp.nextToken() != JsonToken.END_OBJECT) {
if (jp.getCurrentToken() != JsonToken.FIELD_NAME) {
throw new IOException("Expected FIELD_NAME");
}
String n = jp.getCurrentName();
jp.nextToken();
if (jp.getText().equals(""))
continue;
if (n.equals("id")) {
vip.id = jp.getText();
continue;
}
if (n.equals("tenant_id")) {
vip.tenantId = jp.getText();
continue;
}
if (n.equals("name")) {
vip.name = jp.getText();
continue;
}
if (n.equals("network_id")) {
vip.netId = jp.getText();
continue;
}
if (n.equals("protocol")) {
String tmp = jp.getText();
if (tmp.equalsIgnoreCase("TCP")) {
vip.protocol = IPv4.PROTOCOL_TCP;
} else if (tmp.equalsIgnoreCase("UDP")) {
vip.protocol = IPv4.PROTOCOL_UDP;
} else if (tmp.equalsIgnoreCase("ICMP")) {
vip.protocol = IPv4.PROTOCOL_ICMP;
}
continue;
}
if (n.equals("address")) {
vip.address = IPv4.toIPv4Address(jp.getText());
continue;
}
if (n.equals("port")) {
vip.port = Short.parseShort(jp.getText());
continue;
}
if (n.equals("pool_id")) {
vip.pools.add(jp.getText());
continue;
}
log.warn("Unrecognized field {} in " +
"parsing Vips",
jp.getText());
}
jp.close();
return vip;
}
}