/**
* Set up properties for the given virtual application object representing a NetScaler loading
* balance. and its discovery extension. Create the GslbServiceAgent to capture the lbvserver and
* app services that are configured on this target and are bound to the specified GSLB. Also
* create the transaction commodity sold by the vApp.
*
* @param gslb VirtualApplication for the load balancing server
* @param specificTarget NetScaler appliance target
* @param vServerExt NetScalerGslbVirtualAppDiscExt Discovery extension for the virtual
* application
* @param localName gslb server name to be set as local name in the discovery extension
* @param vAppUuid UUID created for the virtual application
* @param vAppType load balancing service protocol
* @param classname static string "gslbvserver" to set as class name in the discovery extension
* @param lbvServers list of lbvservers configured on the gslb on this target
* @return modified vApp object
*/
private VirtualApplication createGslbVirtualApplication(
VirtualApplication gslb,
VMTTarget specificTarget,
NetScalerGslbVirtualAppDiscExt vServerExt,
String localName,
String vAppUuid,
String vAppType,
String classname,
List<String> lbvServers) {
// set properties in the virtual app and the discovery extension
// and create the transaction commodity sold
gslb =
createVirtualApplication(
gslb,
specificTarget,
vServerExt,
localName, // service name as the local name
"", // there is no IP and port associated with the GSLB
0, // there is no port for the GSLB service
vAppUuid, // uuid for the gslb vapp containing its service name only
vAppType, // service type
NetScalerUtil.GSLB_VSERVER // class name for the poller
);
// agent to represent this service on this target
String agentName =
NetScalerUtil.GSLB_AGENT_PREFIX + gslb.getName() + "-" + target.getNameOrAddress();
GslbServiceAgent lbAgent =
(GslbServiceAgent)
createObject(MediationPackage.eINSTANCE.getGslbServiceAgent(), agentName);
lbAgent.setDisplayName(gslb.getName() + "-" + target.getNameOrAddress());
// discovery extension for the agent
NetScalerGslbServiceAgentDiscExt agentDiscExt =
(NetScalerGslbServiceAgentDiscExt)
lbAgent.createExtension(
DiscoveryExtensionsPackage.eINSTANCE.getNetScalerGslbServiceAgentDiscExt());
// we set the GSLB server name as the local name
setExtProps(
agentDiscExt,
specificTarget,
NetScalerUtil.LB_VSERVER, // class name attribute in the extension used during polling
agentName, // display name attribute in the extension
localName, // local name attribute
localName, // id attribute
logPrefix);
// attach to the vApp
gslb.getAgents().add(lbAgent);
agentDiscExt.getLbvServers().addAll(lbvServers);
if (logger.isDebugEnabled())
logger.debug(
logPrefix
+ gslb.toVMTString()
+ " : create glsb agent on target "
+ target.getNameOrAddress());
return gslb;
}
/**
* Update the Gslb Agent attached to the Gslb application that the lbvserver is bound to
*
* @param vServerIP
*/
private void updateGslbVAppAgent(String vServerIP, Integer vServerPort) {
// the gslb vApp that this lbvserver is bound to
VirtualApplication gslb = lbvServerVIPToGslbVAppMap.get(vServerIP);
// if (logger.isDebugEnabled())
logger.info(
logPrefix
+ "LB virtual server at VIP "
+ vServerIP
+ " on target "
+ target.getNameOrAddress()
+ " is bound to GSLB "
+ gslb.toVMTString());
// port for the GSLB service
gslb.setPort(vServerPort);
// gslb agent for this target
GslbServiceAgent lbAgent = NetScalerUtil.getTargetAgent(gslb, target);
if (lbAgent == null) {
logger.warn("null gslb service agent for gslb " + gslb.toVMTString());
// TODO: create it ?
}
NetScalerGslbServiceAgentDiscExt lbAgentDiscExt =
(NetScalerGslbServiceAgentDiscExt) lbAgent.getDiscoveryExtension();
Map<String, String> vipToServiceName = lbAgentDiscExt.getVipToLbServiceName();
if (vipToServiceName == null) {
vipToServiceName = new HashMap<String, String>();
lbAgentDiscExt.setVipToLbServiceName(vipToServiceName);
}
vipToServiceName.put(vServerIP, lbvserver_ip2serviceName.get(vServerIP));
Map<String, Map<String, String>> vipToAppServices = lbAgentDiscExt.getVipToAppServices();
if (vipToAppServices == null) {
vipToAppServices = new HashMap<String, Map<String, String>>();
lbAgentDiscExt.setVipToAppServices(vipToAppServices);
}
vipToAppServices.put(vServerIP, ip2NameIPPort);
if (logger.isDebugEnabled()) {
logger.debug(
logPrefix
+ " added vipToServiceName Map : "
+ lbAgentDiscExt.getVipToLbServiceName()
+ " for "
+ lbAgent.toVMTString());
logger.debug(
logPrefix
+ " added vipToAppServices Map : "
+ lbAgentDiscExt.getVipToAppServices()
+ " for "
+ lbAgent.toVMTString());
}
// create IP objects for the app service endpoints.
for (String ip : ip2NameIPPort.keySet()) {
IP serviceIP = DiscoveryUtil.createOrGetIPObj(ip, logPrefix);
if (logger.isDebugEnabled())
logger.debug(
target.getNameOrAddress()
+ " created IP : "
+ serviceIP.toVMTString()
+ " for "
+ ip
+ " :: Name/IP/Port : "
+ ip2NameIPPort.get(ip));
}
}