Examples with TimeoutTracker org.opennms.core.utils.TimeoutTracker used on opensource projects

Example 21 with TimeoutTracker

use of org.opennms.core.utils.TimeoutTracker in project opennms by OpenNMS.

the class CitrixMonitor method poll.

// read()
/**
 * {@inheritDoc}
 *
 * Poll the specified address for Citrix service availability.
 *
 * During the poll an attempt is made to connect on the specified port (by
 * default port 1494). If the connection request is successful, the banner
 * line generated by the interface is parsed and if the extracted return
 * code indicates that we are talking to an Citrix server ('ICA' appears in
 * the response) we set the service status to SERVICE_AVAILABLE and return.
 */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    // Get the category logger
    // 
    // get the parameters
    // 
    TimeoutTracker timeoutTracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    int port = ParameterMap.getKeyedInteger(parameters, "port", DEFAULT_PORT);
    // Extract the address
    // 
    InetAddress ipv4Addr = svc.getAddress();
    String host = InetAddressUtils.str(ipv4Addr);
    LOG.debug("CitrixMonitor.poll: Polling interface: {} {}", host, timeoutTracker);
    PollStatus serviceStatus = PollStatus.unavailable();
    for (timeoutTracker.reset(); timeoutTracker.shouldRetry() && !serviceStatus.isAvailable(); timeoutTracker.nextAttempt()) {
        Socket socket = null;
        try {
            timeoutTracker.startAttempt();
            socket = new Socket();
            socket.connect(new InetSocketAddress(ipv4Addr, port), timeoutTracker.getConnectionTimeout());
            socket.setSoTimeout(timeoutTracker.getSoTimeout());
            LOG.debug("CitrixMonitor: connected to host: {} on port: {}", host, port);
            // We're connected, so upgrade status to unresponsive
            // Allocate a line reader
            // 
            BufferedReader reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            final StringBuilder buffer = new StringBuilder();
            // 
            while (!serviceStatus.isAvailable()) {
                buffer.append((char) reader.read());
                if (buffer.toString().indexOf("ICA") > -1) {
                    serviceStatus = PollStatus.available(timeoutTracker.elapsedTimeInMillis());
                } else {
                    serviceStatus = PollStatus.unavailable("magic cookie 'ICA' missing from service greeting.");
                }
            }
        } catch (ConnectException e) {
            // Connection refused!! Continue to retry.
            String reason = "Connection refused by host " + host;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (NoRouteToHostException e) {
            // No route to host!! Try retries anyway in case strict timeouts are enabled
            String reason = "Unable to test host " + host + ", no route available";
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (InterruptedIOException e) {
            String reason = "did not connect to host " + host + " within timeout: " + timeoutTracker;
            LOG.debug(reason);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (IOException e) {
            String reason = "Error communicating with host " + host;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (Throwable t) {
            String reason = "Undeclared throwable exception caught contacting host " + host;
            LOG.debug(reason, t);
            serviceStatus = PollStatus.unavailable(reason);
        } finally {
            try {
                if (socket != null) {
                    socket.close();
                    socket = null;
                }
            } catch (IOException e) {
            }
        }
    }
    // 
    return serviceStatus;
}

Example 22 with TimeoutTracker

use of org.opennms.core.utils.TimeoutTracker in project opennms by OpenNMS.

the class DnsMonitor method poll.

/**
 * {@inheritDoc}
 *
 * <P>
 * Poll the specified address for DNS service availability.
 * </P>
 *
 * <P>
 * During the poll an DNS address request query packet is generated for
 * hostname 'localhost'. The query is sent via UDP socket to the interface
 * at the specified port (by default UDP port 53). If a response is
 * received, it is parsed and validated. If the DNS lookup was successful
 * the service status is set to SERVICE_AVAILABLE and the method returns.
 * </P>
 */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    // get the parameters
    // 
    TimeoutTracker timeoutTracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    int port = ParameterMap.getKeyedInteger(parameters, "port", DEFAULT_PORT);
    // Host to lookup?
    // 
    String lookup = ParameterMap.getKeyedString(parameters, "lookup", null);
    if (lookup == null || lookup.length() == 0) {
        // Get hostname of local machine for future DNS lookups
        lookup = InetAddressUtils.getLocalHostAddressAsString();
        if (lookup == null) {
            throw new UnsupportedOperationException("Unable to look up local host address.");
        }
    }
    // What do we consider fatal?
    // 
    final List<Integer> fatalCodes = new ArrayList<>();
    for (final int code : ParameterMap.getKeyedIntegerArray(parameters, "fatal-response-codes", DEFAULT_FATAL_RESP_CODES)) {
        fatalCodes.add(code);
    }
    int minAnswers = ParameterMap.getKeyedInteger(parameters, "min-answers", DEFAULT_MIN_ANSWERS);
    int maxAnswers = ParameterMap.getKeyedInteger(parameters, "max-answers", DEFAULT_MAX_ANSWERS);
    // get the address and DNS address request
    // 
    final InetAddress addr = svc.getAddress();
    PollStatus serviceStatus = null;
    serviceStatus = pollDNS(timeoutTracker, port, addr, lookup, fatalCodes, minAnswers, maxAnswers);
    if (serviceStatus == null) {
        String reason = "Never received valid DNS response for address: " + addr;
        LOG.debug(reason);
        serviceStatus = PollStatus.unavailable(reason);
    }
    // 
    return serviceStatus;
}

Example 23 with TimeoutTracker

use of org.opennms.core.utils.TimeoutTracker in project opennms by OpenNMS.

the class DominoIIOPMonitor method poll.

// read()
/**
 * {@inheritDoc}
 *
 * Poll the specified address for service availability.
 *
 * 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 set the service
 * status to SERVICE_AVAILABLE and return.
 */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    // 
    // Process parameters
    // 
    TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    int IORport = ParameterMap.getKeyedInteger(parameters, "ior-port", DEFAULT_IORPORT);
    // Port
    // 
    int port = ParameterMap.getKeyedInteger(parameters, "port", DEFAULT_PORT);
    // Get the address instance.
    // 
    InetAddress ipAddr = svc.getAddress();
    final String hostAddress = InetAddressUtils.str(ipAddr);
    LOG.debug("poll: address = {}, port = {}, {}", hostAddress, port, tracker);
    // 
    try {
        retrieveIORText(hostAddress, IORport);
    } catch (Throwable e) {
        String reason = "failed to get the corba IOR from " + ipAddr;
        LOG.debug(reason, e);
        return PollStatus.unavailable(reason);
    }
    PollStatus status = null;
    for (tracker.reset(); tracker.shouldRetry() && !status.isAvailable(); tracker.nextAttempt()) {
        Socket socket = null;
        try {
            // 
            // create a connected socket
            // 
            tracker.startAttempt();
            socket = new Socket();
            socket.connect(new InetSocketAddress(ipAddr, port), tracker.getConnectionTimeout());
            socket.setSoTimeout(tracker.getSoTimeout());
            LOG.debug("DominoIIOPMonitor: connected to host: {} on port: {}", ipAddr, port);
            return PollStatus.up(tracker.elapsedTimeInMillis());
        } catch (NoRouteToHostException e) {
            String reason = " No route to host exception for address " + hostAddress;
            LOG.debug(reason, e);
            status = PollStatus.unavailable(reason);
        } catch (InterruptedIOException e) {
            String reason = "did not connect to host with " + tracker;
            LOG.debug(reason);
            status = PollStatus.unavailable(reason);
        } catch (ConnectException e) {
            String reason = "Connection exception for address: " + ipAddr + " : " + e.getMessage();
            LOG.debug(reason);
            status = PollStatus.unavailable(reason);
        } catch (IOException e) {
            String reason = "IOException while polling address: " + ipAddr + " : " + e.getMessage();
            LOG.debug(reason);
            status = PollStatus.unavailable(reason);
        } finally {
            try {
                // Close the socket
                if (socket != null)
                    socket.close();
            } catch (IOException e) {
                e.fillInStackTrace();
                LOG.debug("DominoIIOPMonitor: Error closing socket.", e);
            }
        }
    }
    // 
    return status;
}

Example 24 with TimeoutTracker

use of org.opennms.core.utils.TimeoutTracker in project opennms by OpenNMS.

the class ImapMonitor method poll.

/**
 * {@inheritDoc}
 *
 * <P>
 * Poll the specified address for IMAP service availability.
 * </P>
 *
 * <P>
 * During the poll an attempt is made to connect on the specified port (by
 * default TCP port 143). If the connection request is successful, the
 * banner line generated by the interface is parsed and if it starts with a '*
 * OK , it indicates that we are talking to an IMAP server and we continue.
 * Next, a 'LOGOUT' command is sent to the interface. Again the response is
 * parsed and the response is verified to see that we get a '* OK'. If the
 * interface's response is valid we set the service status to
 * SERVICE_AVAILABLE and return.
 * </P>
 */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    // Process parameters
    // 
    TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    // Retries
    // 
    final int port = determinePort(parameters);
    // Get interface address from NetworkInterface
    // 
    InetAddress ipAddr = svc.getAddress();
    LOG.debug("ImapMonitor.poll: address: {} port: {} {}", ipAddr, port, tracker);
    PollStatus serviceStatus = PollStatus.unavailable();
    for (tracker.reset(); tracker.shouldRetry() && !serviceStatus.isAvailable(); tracker.nextAttempt()) {
        Socket socket = null;
        try {
            // 
            // create a connected socket
            // 
            tracker.startAttempt();
            socket = new Socket();
            socket.connect(new InetSocketAddress(ipAddr, port), tracker.getConnectionTimeout());
            socket.setSoTimeout(tracker.getSoTimeout());
            // We're connected, so upgrade status to unresponsive
            serviceStatus = PollStatus.unresponsive();
            // For SSL support
            socket = getSocketWrapper().wrapSocket(socket);
            BufferedReader rdr = new BufferedReader(new InputStreamReader(socket.getInputStream()));
            // 
            // Tokenize the Banner Line, and check the first
            // line for a valid return.
            // 
            String banner = rdr.readLine();
            double responseTime = tracker.elapsedTimeInMillis();
            LOG.debug("ImapMonitor.Poll(): banner: {}", banner);
            if (banner != null && banner.startsWith(IMAP_START_RESPONSE_PREFIX)) {
                // 
                // Send the LOGOUT
                // 
                socket.getOutputStream().write(IMAP_LOGOUT_REQUEST.getBytes());
                // 
                // get the returned string, tokenize, and
                // verify the correct output.
                // 
                String response = rdr.readLine();
                if (response != null && response.startsWith(IMAP_BYE_RESPONSE_PREFIX)) {
                    response = rdr.readLine();
                    if (response != null && response.startsWith(IMAP_LOGOUT_RESPONSE_PREFIX)) {
                        serviceStatus = PollStatus.available(responseTime);
                    }
                }
            }
            // the banner checking or logout process.
            if (!serviceStatus.isAvailable()) {
                serviceStatus = PollStatus.unavailable();
            }
        } catch (NoRouteToHostException e) {
            String reason = "No route to host exception for address: " + ipAddr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (ConnectException e) {
            // Connection refused. Continue to retry.
            String reason = "Connection exception for address: " + ipAddr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (InterruptedIOException e) {
            String reason = "did not connect to host with " + tracker;
            LOG.debug(reason);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (IOException e) {
            String reason = "IOException while polling address: " + ipAddr;
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } finally {
            try {
                // Close the socket
                if (socket != null)
                    socket.close();
            } catch (IOException e) {
                e.fillInStackTrace();
                LOG.debug("ImapMonitor.poll: Error closing socket.", e);
            }
        }
    }
    // 
    return serviceStatus;
}

Example 25 with TimeoutTracker

use of org.opennms.core.utils.TimeoutTracker in project opennms by OpenNMS.

the class MailTransportMonitor method sendTestMessage.

/**
 * Sends message based on properties and fields configured for the service.
 *
 * @param mailParms
 * @return a PollStatus
 */
private PollStatus sendTestMessage(final MailTransportParameters mailParms) {
    PollStatus status = PollStatus.unavailable("Test not completed.");
    final long interval = mailParms.getSendTestAttemptInterval();
    final TimeoutTracker tracker = new TimeoutTracker(mailParms.getParameterMap(), mailParms.getRetries(), mailParms.getTimeout());
    for (tracker.reset(); tracker.shouldRetry(); tracker.nextAttempt()) {
        tracker.startAttempt();
        LOG.debug("sendTestMessage: sending mail attempt: {}, elapsed time: {}ms", (tracker.getAttempt() + 1), String.format("%.2f", tracker.elapsedTimeInMillis()));
        try {
            final JavaMailer sendMailer = createMailer(mailParms);
            overRideDefaultProperties(mailParms, sendMailer);
            sendMailer.mailSend();
            status = PollStatus.available();
            break;
        } catch (final JavaMailerException e) {
            status = PollStatus.unavailable(e.getLocalizedMessage());
        }
        if (tracker.shouldRetry()) {
            delayTest(status, interval);
        }
    }
    return status;
}