/**
* This method queries the Vmware vCenter server for sensor data.
*
* @param svc the monitored service
* @param parameters the parameter map
* @return the poll status for this system
*/
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
OnmsNode onmsNode = m_nodeDao.get(svc.getNodeId());
// retrieve the assets and
String vmwareManagementServer = onmsNode.getAssetRecord().getVmwareManagementServer();
String vmwareManagedEntityType = onmsNode.getAssetRecord().getVmwareManagedEntityType();
String vmwareManagedObjectId = onmsNode.getForeignId();
TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
PollStatus serviceStatus = PollStatus.unknown();
for (tracker.reset();
tracker.shouldRetry() && !serviceStatus.isAvailable();
tracker.nextAttempt()) {
VmwareViJavaAccess vmwareViJavaAccess = null;
try {
vmwareViJavaAccess = new VmwareViJavaAccess(vmwareManagementServer);
} catch (MarshalException e) {
logger.warn(
"Error initialising VMware connection to '{}': '{}'",
vmwareManagementServer,
e.getMessage());
return PollStatus.unavailable(
"Error initialising VMware connection to '" + vmwareManagementServer + "'");
} catch (ValidationException e) {
logger.warn(
"Error initialising VMware connection to '{}': '{}'",
vmwareManagementServer,
e.getMessage());
return PollStatus.unavailable(
"Error initialising VMware connection to '" + vmwareManagementServer + "'");
} catch (IOException e) {
logger.warn(
"Error initialising VMware connection to '{}': '{}'",
vmwareManagementServer,
e.getMessage());
return PollStatus.unavailable(
"Error initialising VMware connection to '" + vmwareManagementServer + "'");
}
try {
vmwareViJavaAccess.connect();
} catch (MalformedURLException e) {
logger.warn(
"Error connecting VMware management server '{}': '{}'",
vmwareManagementServer,
e.getMessage());
return PollStatus.unavailable(
"Error connecting VMware management server '" + vmwareManagementServer + "'");
} catch (RemoteException e) {
logger.warn(
"Error connecting VMware management server '{}': '{}'",
vmwareManagementServer,
e.getMessage());
return PollStatus.unavailable(
"Error connecting VMware management server '" + vmwareManagementServer + "'");
}
if (!vmwareViJavaAccess.setTimeout(tracker.getConnectionTimeout())) {
logger.warn(
"Error setting connection timeout for VMware management server '{}'",
vmwareManagementServer);
}
String powerState = "unknown";
if ("HostSystem".equals(vmwareManagedEntityType)) {
HostSystem hostSystem =
vmwareViJavaAccess.getHostSystemByManagedObjectId(vmwareManagedObjectId);
if (hostSystem == null) {
return PollStatus.unknown("hostSystem=null");
} else {
HostRuntimeInfo hostRuntimeInfo = hostSystem.getRuntime();
if (hostRuntimeInfo == null) {
return PollStatus.unknown("hostRuntimeInfo=null");
} else {
HostSystemPowerState hostSystemPowerState = hostRuntimeInfo.getPowerState();
if (hostSystemPowerState == null) {
return PollStatus.unknown("hostSystemPowerState=null");
} else {
powerState = hostSystemPowerState.toString();
}
}
}
} else {
if ("VirtualMachine".equals(vmwareManagedEntityType)) {
VirtualMachine virtualMachine =
vmwareViJavaAccess.getVirtualMachineByManagedObjectId(vmwareManagedObjectId);
if (virtualMachine == null) {
return PollStatus.unknown("virtualMachine=null");
} else {
VirtualMachineRuntimeInfo virtualMachineRuntimeInfo = virtualMachine.getRuntime();
if (virtualMachineRuntimeInfo == null) {
return PollStatus.unknown("virtualMachineRuntimeInfo=null");
} else {
VirtualMachinePowerState virtualMachinePowerState =
virtualMachineRuntimeInfo.getPowerState();
if (virtualMachinePowerState == null) {
return PollStatus.unknown("virtualMachinePowerState=null");
} else {
powerState = virtualMachinePowerState.toString();
}
}
}
} else {
logger.warn(
"Error getting '{}' for '{}'", vmwareManagedEntityType, vmwareManagedObjectId);
vmwareViJavaAccess.disconnect();
return serviceStatus;
}
}
if ("poweredOn".equals(powerState)) {
serviceStatus = PollStatus.available();
} else {
serviceStatus = PollStatus.unavailable("The system's state is '" + powerState + "'");
}
vmwareViJavaAccess.disconnect();
}
return serviceStatus;
}
/**
* {@inheritDoc}
*
* <p>Poll an {@link InetAddress} for SSH availability.
*
* <p>During the poll an attempt is made to connect on the specified port. If the connection
* request is successful, the banner line generated by the interface is parsed and if the banner
* text indicates that we are talking to Provided that the interface's response is valid we mark
* the poll status as available and return.
*/
public PollStatus poll(InetAddress address, Map<String, Object> parameters) {
TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
int port = ParameterMap.getKeyedInteger(parameters, "port", DEFAULT_PORT);
String banner = ParameterMap.getKeyedString(parameters, "banner", null);
String match = ParameterMap.getKeyedString(parameters, "match", null);
String clientBanner =
ParameterMap.getKeyedString(parameters, "client-banner", Ssh.DEFAULT_CLIENT_BANNER);
PollStatus ps = PollStatus.unavailable();
Ssh ssh = new Ssh(address, port, tracker.getConnectionTimeout());
ssh.setClientBanner(clientBanner);
RE regex = null;
try {
if (match == null && (banner == null || banner.equals("*"))) {
regex = null;
} else if (match != null) {
regex = new RE(match);
} else if (banner != null) {
regex = new RE(banner);
}
} catch (final RESyntaxException e) {
final String matchString = match == null ? banner : match;
LogUtils.infof(
this,
"Invalid regular expression for SSH banner match /%s/: %s",
matchString,
e.getMessage());
LogUtils.debugf(this, e, "Invalid Regular expression for SSH banner match /%s/", matchString);
}
for (tracker.reset(); tracker.shouldRetry() && !ps.isAvailable(); tracker.nextAttempt()) {
try {
ps = ssh.poll(tracker);
} catch (final InsufficientParametersException e) {
LogUtils.errorf(this, e, "An error occurred polling host '%s'", address);
break;
}
if (!ps.isAvailable()) {
// not able to connect, retry
continue;
}
// If banner matching string is null or wildcard ("*") then we
// only need to test connectivity and we've got that!
if (regex == null) {
return ps;
} else {
String response = ssh.getServerBanner();
if (response == null) {
return PollStatus.unavailable("server closed connection before banner was received.");
}
if (regex.match(response)) {
LogUtils.debugf(this, "isServer: matching response=%s", response);
return ps;
} else {
// Got a response but it didn't match... no need to attempt
// retries
LogUtils.debugf(this, "isServer: NON-matching response=%s", response);
return PollStatus.unavailable(
"server responded, but banner did not match '" + banner + "'");
}
}
}
return ps;
}
