/*
* Delete an LB
*/
@DELETE
@Path("/{id}")
@Produces("application/json")
public void deleteLb(@PathParam("id") String id) {
// delete the LB, send worker delete, finally clear device when worker responds ( not here )
logger.info("DELETE loadbalancer : " + id);
LoadBalancerDataModel model = new LoadBalancerDataModel();
Integer lbId = new Integer(id);
LoadBalancer lb = model.getLoadBalancer(lbId);
if (lb == null) {
throw new LBaaSException("could not find id : " + id, 404); // not found
}
int deleteCount = model.deleteLoadBalancer(lbId);
if (deleteCount == 0) {
throw new LBaaSException("could not find id on delete: " + id, 404); // not found
}
// have the device process the job
try {
lbaasTaskManager.sendJob(lb.getDevice(), LbToJson(lb, ACTION_DELETE));
} catch (JSONException jsone) {
throw new LBaaSException(
"internal server error JSON exception :" + jsone.toString(), 500); // internal error
}
}
/*
* Utility method for JSON'izing a single LB
*/
protected String LbToJson(LoadBalancer lb, String action) throws JSONException {
JSONObject jsonResponseObject = new JSONObject();
try {
// internal fields for worker IPC only
if (action != null) {
jsonResponseObject.put(HPCS_REQUESTID, ++requestId);
jsonResponseObject.put(HPCS_ACTION, action);
jsonResponseObject.put(HPCS_DEVICE, lb.getDevice());
}
jsonResponseObject.put("name", lb.getName());
jsonResponseObject.put("id", lb.getId());
jsonResponseObject.put("protocol", lb.getProtocol());
jsonResponseObject.put("port", lb.getPort());
jsonResponseObject.put("algorithm", lb.getAlgorithm());
jsonResponseObject.put("status", lb.getStatus());
jsonResponseObject.put("created", lb.getCreated());
jsonResponseObject.put("updated", lb.getUpdated());
// vips
JSONArray jsonVipArray = new JSONArray();
VirtualIps vips = lb.getVirtualIps();
if (vips != null) {
List<VirtualIp> vipslist = vips.getVirtualIps();
if (vipslist != null)
for (int x = 0; x < vipslist.size(); x++) {
JSONObject jsonVIP = new JSONObject();
jsonVIP.put("address", vipslist.get(x).getAddress());
jsonVIP.put("id", vipslist.get(x).getId());
jsonVIP.put("type", vipslist.get(x).getType());
jsonVIP.put("ipVersion", vipslist.get(x).getIpVersion());
jsonVipArray.put(jsonVIP);
}
}
jsonResponseObject.put("virtualIps", jsonVipArray);
// nodes
JSONArray jsonNodeArray = new JSONArray();
Nodes nodes = lb.getNodes();
if (nodes != null) {
List<Node> nodeList = nodes.getNodes();
for (int y = 0; y < nodeList.size(); y++) {
JSONObject jsonNode = new JSONObject();
jsonNode.put("address", nodeList.get(y).getAddress());
jsonNode.put("id", nodeList.get(y).getId());
jsonNode.put("port", nodeList.get(y).getPort());
jsonNode.put("status", nodeList.get(y).getStatus());
jsonNodeArray.put(jsonNode);
}
}
jsonResponseObject.put("nodes", jsonNodeArray);
return jsonResponseObject.toString();
} catch (JSONException jsone) {
throw jsone;
}
}
/*
* Create a new LB
*/
@POST
@Consumes("application/json")
@Produces("application/json")
public String post(String content) {
logger.info("POST loadbalancers");
Device device = null;
// process POSTed body
LoadBalancerDataModel lbModel = new LoadBalancerDataModel();
LoadBalancer lb = new LoadBalancer();
Integer lbId = 0;
int x = 0;
try {
JSONObject jsonObject = new JSONObject(content);
String name = (String) jsonObject.get("name");
lb.setName(name);
logger.info(" name = " + name);
// minimally request needs nodes
if (!jsonObject.has("nodes")) {
throw new LBaaSException("nodes are required", 400); // bad request
}
// check to ensure protocol is supported
if (jsonObject.has("protocol")) {
String protocol = (String) jsonObject.get("protocol");
if (!ProtocolHandler.exists(protocol)) {
throw new LBaaSException(
"protocol specified not supported : " + protocol, 400); // bad request
} else {
logger.info(" protocol = " + protocol);
lb.setProtocol(protocol);
lb.setPort(ProtocolHandler.getPort(protocol));
logger.info(" port = " + lb.getPort());
}
}
// nodes
Nodes nodes = new Nodes();
JSONArray jsonNodesArray = (JSONArray) jsonObject.get("nodes");
for (x = 0; x < jsonNodesArray.length(); x++) {
Node node = new Node();
// logger.info("node["+x+"] = "+ jsonNodesArray.getJSONObject(x));
JSONObject jsonNode = jsonNodesArray.getJSONObject(x);
String address = (String) jsonNode.get("address");
node.setAddress(address);
String port = (String) jsonNode.get("port");
node.setPort(Integer.valueOf(port));
node.setStatus("ONLINE");
node.setId(new Integer(x + 1));
logger.info(" Node[" + x + "]");
logger.info(" address = " + address);
logger.info(" port = " + port);
logger.info(" status = " + node.getStatus());
nodes.getNodes().add(node);
}
lb.setNodes(nodes);
// vips
VirtualIps virtualIps = new VirtualIps();
if (jsonObject.has("virtualIps")) {
JSONArray jsonVIPArray = (JSONArray) jsonObject.get("virtualIps");
for (x = 0; x < jsonVIPArray.length(); x++) {
VirtualIp virtualIp = new VirtualIp();
// logger.info("vip["+x+"] = "+ jsonVIPArray.getJSONObject(x));
JSONObject jsonVip = jsonVIPArray.getJSONObject(x);
String address = (String) jsonVip.get("address");
virtualIp.setAddress(address);
if (jsonVip.get("ipVersion").toString().equalsIgnoreCase("IPV4"))
virtualIp.setIpVersion(IpVersion.IPV_4);
else virtualIp.setIpVersion(IpVersion.IPV_6);
if (jsonVip.get("type").toString().equalsIgnoreCase("public"))
virtualIp.setType(VipType.PUBLIC);
else virtualIp.setType(VipType.PRIVATE);
virtualIp.setId(new Integer(x + 1));
logger.info(" VIP[" + x + "]");
logger.info(" address = " + virtualIp.getAddress());
logger.info(" ipversion = " + virtualIp.getIpVersion().toString());
logger.info(" type = " + virtualIp.getType().toString());
virtualIps.getVirtualIps().add(virtualIp);
}
lb.setVirtualIps(virtualIps);
}
// find free device to use
DeviceDataModel deviceModel = new DeviceDataModel();
device = deviceModel.findFreeDevice();
if (device == null) {
throw new LBaaSException("cannot find free device available", 503); // not available
}
logger.info("found free device at id : " + device.getId().toString());
// create new LB
lb.setDevice(device.getId()); // set lb device id
lbId = lbModel.createLoadBalancer(lb); // write it to datamodel
// set device lb and write it back to data model
device.setLbId(lbId);
deviceModel.setDevice(device);
} catch (JSONException e) {
return e.toString();
}
// read LB back from data model, it will now have valid id
LoadBalancer lbResponse = lbModel.getLoadBalancer(lbId);
// have the device process the request
try {
lbaasTaskManager.sendJob(lbResponse.getDevice(), LbToJson(lb, ACTION_CREATE));
} catch (JSONException jsone) {
throw new LBaaSException(
"internal server error JSON exception :" + jsone.toString(), 500); // internal error
}
// respond with JSON
try {
return LbToJson(lbResponse, null);
} catch (JSONException jsone) {
throw new LBaaSException(
"internal server error JSON exception :" + jsone.toString(), 500); // internal error
}
}
/*
* Update a specific LB
* only allows changing name or algorithm
*/
@PUT
@Path("/{id}")
@Consumes("application/json")
public void updateLb(@PathParam("id") String id, String content) {
logger.info("PUT loadbalancer : " + id);
LoadBalancerDataModel model = new LoadBalancerDataModel();
// attempt to read lb top be updated
Integer lbId = new Integer(id);
LoadBalancer lb = model.getLoadBalancer(lbId);
if (lb == null) {
throw new LBaaSException("could not find id : " + id, 404); // not found
}
String name, algorithm;
JSONObject jsonObject = null;
// decode JSON
try {
jsonObject = new JSONObject(content);
} catch (JSONException e) {
throw new LBaaSException("bad json request", 400); // bad request
}
// look for name
try {
name = (String) jsonObject.get("name");
lb.setName(name);
logger.info(" name = " + name);
} catch (JSONException e) {
name = null;
}
// look for algorithm
try {
algorithm = (String) jsonObject.get("algorithm");
lb.setName(name);
logger.info(" algorithm = " + algorithm);
} catch (JSONException e) {
algorithm = null;
}
// must have one of these fields
if ((name == null) && (algorithm == null)) {
throw new LBaaSException("name and algorithm missing", 400); // bad request
}
if (name != null) lb.setName(name);
if (algorithm != null) lb.setAlgorithm(algorithm);
// mark as change pending
lb.setStatus(LoadBalancer.STATUS_PENDING_UPDATE);
// write changes to DB
model.setLoadBalancer(lb);
// have the device process the job
try {
lbaasTaskManager.sendJob(lb.getDevice(), LbToJson(lb, ACTION_UPDATE));
} catch (JSONException jsone) {
throw new LBaaSException(
"internal server error JSON exception :" + jsone.toString(), 500); // internal error
}
}
