/**
* {@inheritDoc}
*
* <p>Poll the specified address for service availability.
*
* @see #poll(InetAddress, Map)
*/
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
NetworkInterface<InetAddress> iface = svc.getNetInterface();
if (iface.getType() != NetworkInterface.TYPE_INET)
throw new NetworkInterfaceNotSupportedException(
"Unsupported interface type, only TYPE_INET currently supported");
InetAddress address = (InetAddress) iface.getAddress();
return poll(address, parameters);
}
/**
* {@inheritDoc}
*
* <p>Poll the specified address for service availability.
*
* <p>During the poll an attempt is made to call the specified external script or program. If the
* connection request is successful, the banner line returned as standard output by the script or
* program is parsed for a partial match with the banner string specified in the poller
* configuration. Provided that the script's response is valid we set the service status to
* SERVICE_AVAILABLE and return.
*
* <p>The timeout is handled by ExecRunner and is also passed as a parameter to the script or
* program being called.
*/
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
NetworkInterface<InetAddress> iface = svc.getNetInterface();
//
// Process parameters
//
ThreadCategory log = ThreadCategory.getInstance(getClass());
//
// Get interface address from NetworkInterface
//
if (iface.getType() != NetworkInterface.TYPE_INET)
throw new NetworkInterfaceNotSupportedException(
"Unsupported interface type, only TYPE_INET currently supported");
TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
String hoption = ParameterMap.getKeyedString(parameters, "hoption", "--hostname");
String toption = ParameterMap.getKeyedString(parameters, "toption", "--timeout");
//
// convert timeout to seconds for ExecRunner
//
String args = ParameterMap.getKeyedString(parameters, "args", null);
// Script
//
String script = ParameterMap.getKeyedString(parameters, "script", null);
if (script == null) {
throw new RuntimeException(
"GpMonitor: required parameter 'script' is not present in supplied properties.");
}
// BannerMatch
//
String strBannerMatch = (String) parameters.get("banner");
// Script standard output
//
String scriptoutput = "";
// Script error output
//
String scripterror = "";
// Get the address instance.
//
InetAddress ipv4Addr = (InetAddress) iface.getAddress();
final String hostAddress = InetAddressUtils.str(ipv4Addr);
if (log.isDebugEnabled())
log.debug(
"poll: address = "
+ hostAddress
+ ", script = "
+ script
+ ", arguments = "
+ args
+ ", "
+ tracker);
// Give it a whirl
//
PollStatus serviceStatus = PollStatus.unavailable();
for (tracker.reset();
tracker.shouldRetry() && !serviceStatus.isAvailable();
tracker.nextAttempt()) {
try {
tracker.startAttempt();
int exitStatus = 100;
// Some scripts, such as Nagios check scripts, look for -H and -t versus --hostname and
// --timeout. If the optional parameter option-type is set to short, then the former
// will be used.
int timeoutInSeconds = (int) tracker.getTimeoutInSeconds();
ExecRunner er = new ExecRunner();
er.setMaxRunTimeSecs(timeoutInSeconds);
if (args == null)
exitStatus =
er.exec(
script
+ " "
+ hoption
+ " "
+ hostAddress
+ " "
+ toption
+ " "
+ timeoutInSeconds);
else
exitStatus =
er.exec(
script
+ " "
+ hoption
+ " "
+ hostAddress
+ " "
+ toption
+ " "
+ timeoutInSeconds
+ " "
+ args);
double responseTime = tracker.elapsedTimeInMillis();
if (exitStatus != 0) {
scriptoutput = er.getOutString();
serviceStatus =
logDown(
Level.DEBUG,
script
+ " failed with exit code "
+ exitStatus
+ ". Standard out: "
+ scriptoutput);
}
if (er.isMaxRunTimeExceeded()) {
serviceStatus = logDown(Level.DEBUG, script + " failed. Timeout exceeded");
} else {
if (exitStatus == 0) {
scriptoutput = er.getOutString();
scripterror = er.getErrString();
if (!scriptoutput.equals("")) log.debug(script + " output = " + scriptoutput);
else log.debug(script + " returned no output");
if (!scripterror.equals("")) log.debug(script + " error = " + scripterror);
if (strBannerMatch == null || strBannerMatch.equals("*")) {
serviceStatus = PollStatus.available(responseTime);
} else {
if (scriptoutput.indexOf(strBannerMatch) > -1) {
serviceStatus = PollStatus.available(responseTime);
} else {
serviceStatus =
PollStatus.unavailable(
script
+ "banner not contained in output banner='"
+ strBannerMatch
+ "' output='"
+ scriptoutput
+ "'");
}
}
}
}
} catch (ArrayIndexOutOfBoundsException e) {
serviceStatus = logDown(Level.DEBUG, script + " ArrayIndexOutOfBoundsException", e);
} catch (IOException e) {
serviceStatus =
logDown(
Level.DEBUG, "IOException occurred. Check for proper operation of " + script, e);
} catch (Throwable e) {
serviceStatus = logDown(Level.DEBUG, script + "Exception occurred", e);
}
}
//
// return the status of the service
//
log.debug("poll: GP - serviceStatus= " + serviceStatus + " " + hostAddress);
return serviceStatus;
}
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
NetworkInterface<InetAddress> iface = svc.getNetInterface();
// Get interface address from NetworkInterface
//
if (iface.getType() != NetworkInterface.TYPE_INET)
throw new NetworkInterfaceNotSupportedException(
"Unsupported interface type, only TYPE_INET currently supported");
/*
* TODO: Use it or loose it.
* Commented out because it is not currently used in this monitor
*/
// get parameters
// int retry = ParameterMap.getKeyedInteger(parameters, "retry", DEFAULT_RETRY);
// int timeout = ParameterMap.getKeyedInteger(parameters, "timeout", DEFAULT_TIMEOUT);
// Extract the address
//
InetAddress ipv4Addr = (InetAddress) iface.getAddress();
// Default is a failed status
//
PollStatus serviceStatus = PollStatus.unavailable();
// Attempt to retrieve NetBIOS name of this interface in order
// to determine if SMB is supported.
//
NbtAddress nbtAddr = null;
/*
* This try block was updated to reflect the behavior of the plugin.
*/
final String hostAddress = InetAddressUtils.str(ipv4Addr);
final boolean doNodeStatus =
ParameterMap.getKeyedBoolean(parameters, DO_NODE_STATUS, DO_NODE_STATUS_DEFAULT);
try {
nbtAddr = NbtAddress.getByName(hostAddress);
if (doNodeStatus) {
nbtAddr.getNodeType();
}
if (!nbtAddr.getHostName().equals(hostAddress)) serviceStatus = PollStatus.available();
} catch (UnknownHostException uhE) {
serviceStatus =
logDown(
Level.DEBUG,
"Unknown host exception generated for "
+ hostAddress
+ ", reason: "
+ uhE.getLocalizedMessage());
} catch (RuntimeException rE) {
serviceStatus = logDown(Level.ERROR, "Unexpected runtime exception", rE);
} catch (Throwable e) {
serviceStatus = logDown(Level.DEBUG, "Unexpected exception", e);
}
//
// return the status of the service
//
return serviceStatus;
}
