/** * 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; }