Examples with PollStatus org.opennms.netmgt.poller.PollStatus used on opensource projects

Example 86 with PollStatus

use of org.opennms.netmgt.poller.PollStatus in project opennms by OpenNMS.

the class JMXMonitor method poll.

/**
     * {@inheritDoc}
     */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> map) {
    final InetAddress ipv4Addr = svc.getAddress();
    PollStatus serviceStatus = PollStatus.unavailable();
    try {
        final Timer timer = new Timer();
        final JmxConnectionManager connectionManager = new DefaultConnectionManager(ParameterMap.getKeyedInteger(map, "retry", 3));
        final JmxConnectionManager.RetryCallback retryCallback = new JmxConnectionManager.RetryCallback() {

            @Override
            public void onRetry() {
                timer.reset();
            }
        };
        try (JmxServerConnectionWrapper connection = connectionManager.connect(getConnectionName(), ipv4Addr, JmxUtils.convertToStringMap(map), retryCallback)) {
            // Start with simple communication
            connection.getMBeanServerConnection().getMBeanCount();
            // Take time just here to get not influenced by test execution
            // time
            final long nanoResponseTime = System.nanoTime() - timer.getStartTime();
            // Find all variable definitions
            final Map<String, Object> variables = Maps.newHashMap();
            for (final String key : map.keySet()) {
                // Skip fast if it does not start with the prefix
                if (!key.startsWith(PARAM_BEAN_PREFIX)) {
                    continue;
                }
                // Get the variable name
                final String variable = key.substring(PARAM_BEAN_PREFIX.length());
                // Get the variable definition
                final String definition = ParameterMap.getKeyedString(map, key, null);
                // Store wrapper for variable definition
                variables.put(variable, ObjectNameWrapper.create(connection.getMBeanServerConnection(), definition));
            }
            // Find all test definitions
            final Map<String, Expression> tests = Maps.newHashMap();
            for (final String key : map.keySet()) {
                // Skip fast if it does not start with the prefix
                if (!key.startsWith(PARAM_TEST_PREFIX)) {
                    continue;
                }
                // Get the test name
                final String variable = key.substring(PARAM_TEST_PREFIX.length());
                // Get the test definition
                final String definition = ParameterMap.getKeyedString(map, key, null);
                // Build the expression from the definition
                final Expression expression = JEXL_ENGINE.createExpression(definition);
                // Store expressions
                tests.put(variable, expression);
            }
            // Also handle a single test
            if (map.containsKey(PARAM_TEST)) {
                // Get the test definition
                final String definition = ParameterMap.getKeyedString(map, PARAM_TEST, null);
                // Build the expression from the definition
                final Expression expression = JEXL_ENGINE.createExpression(definition);
                // Store expressions
                tests.put(null, expression);
            }
            // Build the context for all tests
            final JexlContext context = new ReadonlyContext(new MapContext(variables));
            serviceStatus = PollStatus.up(nanoResponseTime / 1000000.0);
            // Execute all tests
            for (final Map.Entry<String, Expression> e : tests.entrySet()) {
                if (!(boolean) e.getValue().evaluate(context)) {
                    serviceStatus = PollStatus.down("Test failed: " + e.getKey());
                    break;
                }
            }
        } catch (JmxServerConnectionException mbse) {
            // Number of retries exceeded
            String reason = "IOException while polling address: " + ipv4Addr;
            LOG.debug(reason);
            serviceStatus = PollStatus.unavailable(reason);
        }
    } catch (Throwable e) {
        String reason = "Monitor - failed! " + InetAddressUtils.str(ipv4Addr);
        LOG.debug(reason);
        serviceStatus = PollStatus.unavailable(reason);
    }
    return serviceStatus;
}

Example 87 with PollStatus

use of org.opennms.netmgt.poller.PollStatus in project opennms by OpenNMS.

the class JolokiaBeanMonitor method poll.

/**
     * {@inheritDoc}
     *
     * Poll the specified address for service availability.
     *
     * During the poll an attempt is made to execute the named method (with
     * optional input) connect on the specified port. If the exec on 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.
     */
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    //
    // Process parameters
    //
    //
    TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    // Port
    int port = ParameterMap.getKeyedInteger(parameters, PARAMETER_PORT, DEFAULT_PORT);
    //URL
    String strURL = ParameterMap.getKeyedString(parameters, PARAMETER_URL, DEFAULT_URL);
    //Username
    String strUser = ParameterMap.getKeyedString(parameters, PARAMETER_USERNAME, null);
    //Password
    String strPasswd = ParameterMap.getKeyedString(parameters, PARAMETER_PASSWORD, null);
    //AttrName
    String strAttrName = ParameterMap.getKeyedString(parameters, PARAMETER_ATTRNAME, null);
    //AttrPath
    String strAttrPath = ParameterMap.getKeyedString(parameters, PARAMETER_ATTRPATH, null);
    //BeanName
    String strBeanName = ParameterMap.getKeyedString(parameters, PARAMETER_BEANNAME, null);
    //MethodName
    String strMethodName = ParameterMap.getKeyedString(parameters, PARAMETER_METHODNAME, null);
    //Optional Inputs
    String strInput1 = ParameterMap.getKeyedString(parameters, PARAMETER_METHODINPUT1, null);
    String strInput2 = ParameterMap.getKeyedString(parameters, PARAMETER_METHODINPUT2, null);
    // BannerMatch
    String strBannerMatch = ParameterMap.getKeyedString(parameters, PARAMETER_BANNER, null);
    // Get the address instance.
    InetAddress ipAddr = svc.getAddress();
    final String hostAddress = InetAddressUtils.str(ipAddr);
    LOGGER.debug("poll: address = " + hostAddress + ", port = " + port + ", " + tracker);
    strURL = strURL.replace("${ipaddr}", hostAddress);
    strURL = strURL.replace("${port}", ((Integer) port).toString());
    LOGGER.debug("poll: final URL address = " + strURL);
    // Give it a whirl
    PollStatus serviceStatus = PollStatus.unknown("Initialized");
    for (tracker.reset(); tracker.shouldRetry() && !serviceStatus.isAvailable(); tracker.nextAttempt()) {
        try {
            tracker.startAttempt();
            J4pClientBuilder j4pClientBuilder = new J4pClientBuilder();
            j4pClientBuilder.url(strURL).connectionTimeout(tracker.getConnectionTimeout()).socketTimeout(tracker.getSoTimeout());
            if (strUser != null && strPasswd != null) {
                j4pClientBuilder.user(strUser).password(strPasswd);
            }
            J4pClient j4pClient = j4pClientBuilder.build();
            LOGGER.debug("JolokiaBeanMonitor: connected to URLhost: " + strURL);
            // We're connected, so upgrade status to unresponsive
            serviceStatus = PollStatus.unresponsive();
            if (strBannerMatch == null || strBannerMatch.length() == 0 || strBannerMatch.equals("*")) {
                serviceStatus = PollStatus.available(tracker.elapsedTimeInMillis());
                break;
            }
            //Exec a method or poll an attribute?
            String response;
            if (strAttrName != null) {
                J4pReadRequest readReq = new J4pReadRequest(strBeanName, strAttrName);
                readReq.setPreferredHttpMethod("POST");
                if (strAttrPath != null) {
                    readReq.setPath(strAttrPath);
                }
                J4pReadResponse resp = j4pClient.execute(readReq);
                response = resp.getValue().toString();
            } else {
                J4pExecRequest execReq;
                //Default Inputs
                if (strInput1 == null && strInput2 == null) {
                    LOGGER.debug("JolokiaBeanMonitor - execute bean: " + strBeanName + " method: " + strMethodName);
                    execReq = new J4pExecRequest(strBeanName, strMethodName);
                } else if (strInput1 != null && strInput2 == null) {
                    //Single Input
                    LOGGER.debug("JolokiaBeanMonitor - execute bean: " + strBeanName + " method: " + strMethodName + " args: " + strInput1);
                    execReq = new J4pExecRequest(strBeanName, strMethodName, strInput1);
                } else {
                    //Double Input
                    LOGGER.debug("JolokiaBeanMonitor - execute bean: " + strBeanName + " method: " + strMethodName + " args: " + strInput1 + " " + strInput2);
                    execReq = new J4pExecRequest(strBeanName, strMethodName, strInput1, strInput2);
                }
                execReq.setPreferredHttpMethod("POST");
                J4pExecResponse resp = j4pClient.execute(execReq);
                response = resp.getValue().toString();
            }
            double responseTime = tracker.elapsedTimeInMillis();
            if (response == null) {
                continue;
            }
            LOGGER.debug("poll: banner = " + response);
            LOGGER.debug("poll: responseTime = " + responseTime + "ms");
            //Could it be a regex?
            if (strBannerMatch.charAt(0) == '~') {
                if (!response.matches(strBannerMatch.substring(1))) {
                    serviceStatus = PollStatus.unavailable("Banner does not match Regex '" + strBannerMatch + "'");
                } else {
                    serviceStatus = PollStatus.available(responseTime);
                }
            } else {
                if (response.contains(strBannerMatch)) {
                    serviceStatus = PollStatus.available(responseTime);
                } else {
                    serviceStatus = PollStatus.unavailable("Did not find expected Text '" + strBannerMatch + "'");
                }
            }
        } catch (J4pConnectException e) {
            String reason = "Connection exception for address: " + ipAddr + ":" + port + " " + e.getMessage();
            LOGGER.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
            break;
        } catch (J4pRemoteException e) {
            String reason = "Remote exception from J4pRemote: " + e.getMessage();
            LOGGER.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (MalformedObjectNameException e) {
            String reason = "Parameters for Jolokia are malformed: " + e.getMessage();
            LOGGER.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        } catch (J4pException e) {
            String reason = J4pException.class.getSimpleName() + " during Jolokia monitor call: " + e.getMessage();
            LOGGER.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
        }
    }
    return serviceStatus;
}

Example 88 with PollStatus

use of org.opennms.netmgt.poller.PollStatus in project opennms by OpenNMS.

the class LaTableMonitor method poll.

/**
     * {@inheritDoc}
     *
     * <P>
     * The poll() method is responsible for polling the specified address for
     * SNMP service availability.
     * </P>
     * @exception RuntimeException
     *                Thrown for any uncrecoverable errors.
     */
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    PollStatus status = PollStatus.available();
    InetAddress ipaddr = svc.getAddress();
    ArrayList<String> errorStringReturn = new ArrayList<String>();
    // Retrieve this interface's SNMP peer object
    final SnmpAgentConfig agentConfig = getAgentConfig(svc, parameters);
    final String hostAddress = InetAddressUtils.str(ipaddr);
    LOG.debug("poll: setting SNMP peer attribute for interface {}", hostAddress);
    agentConfig.setTimeout(ParameterMap.getKeyedInteger(parameters, "timeout", agentConfig.getTimeout()));
    agentConfig.setRetries(ParameterMap.getKeyedInteger(parameters, "retry", ParameterMap.getKeyedInteger(parameters, "retries", agentConfig.getRetries())));
    agentConfig.setPort(ParameterMap.getKeyedInteger(parameters, "port", agentConfig.getPort()));
    LOG.debug("poll: service= SNMP address= {}", agentConfig);
    try {
        LOG.debug("PrTableMonitor.poll: SnmpAgentConfig address: {}", agentConfig);
        SnmpObjId laTableErrorSnmpObject = SnmpObjId.get(laTableErrorFlag);
        Map<SnmpInstId, SnmpValue> flagResults = SnmpUtils.getOidValues(agentConfig, "LaTableMonitor", laTableErrorSnmpObject);
        if (flagResults.size() == 0) {
            LOG.debug("SNMP poll failed: no results, addr={} oid={}", hostAddress, laTableErrorSnmpObject);
            return PollStatus.unavailable();
        }
        for (Map.Entry<SnmpInstId, SnmpValue> e : flagResults.entrySet()) {
            LOG.debug("poll: SNMPwalk poll succeeded, addr={} oid={} instance={} value={}", hostAddress, laTableErrorSnmpObject, e.getKey(), e.getValue());
            if (e.getValue().toString().equals("1")) {
                LOG.debug("LaTableMonitor.poll: found errorFlag=1");
                SnmpObjId laTableErrorMsgSnmpObject = SnmpObjId.get(laTableErrorMsg + "." + e.getKey().toString());
                String LaErrorMsg = SnmpUtils.get(agentConfig, laTableErrorMsgSnmpObject).toDisplayString();
                //Stash the error in an ArrayList to then enumerate over later
                errorStringReturn.add(LaErrorMsg);
            }
        }
        //Check the arraylist and construct return value
        if (errorStringReturn.size() > 0) {
            return PollStatus.unavailable(errorStringReturn.toString());
        } else {
            return status;
        }
    } catch (NumberFormatException e) {
        String reason1 = "Number operator used on a non-number " + e.getMessage();
        LOG.error(reason1, e);
        return PollStatus.unavailable(reason1);
    } catch (IllegalArgumentException e) {
        String reason1 = "Invalid SNMP Criteria: " + e.getMessage();
        LOG.error(reason1, e);
        return PollStatus.unavailable(reason1);
    } catch (Throwable t) {
        String reason1 = "Unexpected exception during SNMP poll of interface " + hostAddress;
        LOG.warn(reason1);
        return PollStatus.unavailable(reason1);
    }
}

Example 89 with PollStatus

use of org.opennms.netmgt.poller.PollStatus in project opennms by OpenNMS.

the class PollerResponseDTOTest method getPollerResponse.

public static PollerResponseDTO getPollerResponse() throws UnknownHostException {
    PollerResponseDTO dto = new PollerResponseDTO();
    PollStatus pollStatus = PollStatus.available();
    pollStatus.setTimestamp(new Date(0));
    dto.setPollStatus(pollStatus);
    return dto;
}

Example 90 with PollStatus

use of org.opennms.netmgt.poller.PollStatus in project opennms by OpenNMS.

the class BSFMonitor method executeScript.

private synchronized PollStatus executeScript(MonitoredService svc, Map<String, Object> map) {
    PollStatus pollStatus = PollStatus.unavailable();
    String fileName = ParameterMap.getKeyedString(map, "file-name", null);
    String lang = ParameterMap.getKeyedString(map, "lang-class", null);
    String langEngine = ParameterMap.getKeyedString(map, "bsf-engine", null);
    String[] langExtensions = ParameterMap.getKeyedString(map, "file-extensions", "").split(",");
    String runType = ParameterMap.getKeyedString(map, "run-type", "eval");
    File file = new File(fileName);
    try {
        if (lang == null)
            lang = BSFManager.getLangFromFilename(fileName);
        if (langEngine != null && lang != null && langExtensions.length > 0) {
            //We register the scripting engine again no matter what since  
            //BSFManager doesn't let us know what engine is currently registered
            //for this language and it might not be the same as what we want. 
            LOG.debug("Registering scripting engine '{}' for '{}'", langEngine, lang);
            BSFManager.registerScriptingEngine(lang, langEngine, langExtensions);
        }
        if (file.exists() && file.canRead()) {
            String code = IOUtils.getStringFromReader(new InputStreamReader(new FileInputStream(file), StandardCharsets.UTF_8));
            HashMap<String, String> results = new HashMap<String, String>();
            LinkedHashMap<String, Number> times = new LinkedHashMap<String, Number>();
            // Declare some beans that can be used inside the script
            m_bsfManager.declareBean("map", map, Map.class);
            m_bsfManager.declareBean("ip_addr", svc.getIpAddr(), String.class);
            m_bsfManager.declareBean("node_id", svc.getNodeId(), int.class);
            m_bsfManager.declareBean("node_label", svc.getNodeLabel(), String.class);
            m_bsfManager.declareBean("svc_name", svc.getSvcName(), String.class);
            m_bsfManager.declareBean("bsf_monitor", this, BSFMonitor.class);
            m_bsfManager.declareBean("results", results, Map.class);
            m_bsfManager.declareBean("times", times, Map.class);
            for (final Entry<String, Object> entry : map.entrySet()) {
                m_bsfManager.declareBean(entry.getKey(), entry.getValue(), String.class);
            }
            pollStatus = PollStatus.unknown("The script did not update the service status");
            long startTime = System.currentTimeMillis();
            if ("eval".equals(runType)) {
                LOG.debug("m_bsfManager's hashCode is " + (m_bsfManager == null ? "null" : m_bsfManager.hashCode()) + "; lang is " + lang + "; code's hashCode is " + (code == null ? "null" : code.hashCode()));
                results.put("status", m_bsfManager.eval(lang, "BSFMonitor", 0, 0, code).toString());
            } else if ("exec".equals(runType)) {
                m_bsfManager.exec(lang, "BSFMonitor", 0, 0, code);
            } else {
                LOG.warn("Invalid run-type parameter value '{}' for service '{}'. Only 'eval' and 'exec' are supported.", runType, svc.getSvcName());
                throw new RuntimeException("Invalid run-type '" + runType + "'");
            }
            long endTime = System.currentTimeMillis();
            if (!times.containsKey(PollStatus.PROPERTY_RESPONSE_TIME)) {
                times.put(PollStatus.PROPERTY_RESPONSE_TIME, endTime - startTime);
            }
            if (STATUS_UNKNOWN.equals(results.get("status"))) {
                pollStatus = PollStatus.unknown(results.get("reason"));
            } else if (STATUS_UNRESPONSIVE.equals(results.get("status"))) {
                pollStatus = PollStatus.unresponsive(results.get("reason"));
            } else if (STATUS_AVAILABLE.equals(results.get("status"))) {
                pollStatus = PollStatus.available();
            } else if (STATUS_UNAVAILABLE.equals(results.get("status"))) {
                pollStatus = PollStatus.unavailable(results.get("reason"));
            } else {
                // Fall through to the old default of treating any other non-OK
                // code as meaning unavailable and also carrying the reason code
                pollStatus = PollStatus.unavailable(results.get("status"));
            }
            LOG.debug("Setting {} times for service '{}'", times.size(), svc.getSvcName());
            pollStatus.setProperties(times);
            if ("exec".equals(runType) && !results.containsKey("status")) {
                LOG.warn("The exec script '{}' for service '{}' never put a 'status' entry in the 'results' bean. Exec scripts should put this entry with a value of 'OK' for up.", fileName, svc.getSvcName());
            }
        } else {
            LOG.warn("Cannot locate or read BSF script file '{}'. Marking service '{}' down.", fileName, svc.getSvcName());
            pollStatus = PollStatus.unavailable("Cannot locate or read BSF script file: " + fileName);
        }
    } catch (BSFException e) {
        LOG.warn("BSFMonitor poll for service '{}' failed with BSFException: {}", svc.getSvcName(), e.getMessage(), e);
        pollStatus = PollStatus.unavailable(e.getMessage());
    } catch (FileNotFoundException e) {
        LOG.warn("Could not find BSF script file '{}'. Marking service '{}' down.", fileName, svc.getSvcName());
        pollStatus = PollStatus.unavailable("Could not find BSF script file: " + fileName);
    } catch (IOException e) {
        pollStatus = PollStatus.unavailable(e.getMessage());
        LOG.warn("BSFMonitor poll for service '{}' failed with IOException: {}", svc.getSvcName(), e.getMessage(), e);
    } catch (Throwable e) {
        // Catch any RuntimeException throws
        pollStatus = PollStatus.unavailable(e.getMessage());
        LOG.warn("BSFMonitor poll for service '{}' failed with unexpected throwable: {}", svc.getSvcName(), e.getMessage(), e);
    } finally {
        //remove the beans we've declared so the manager is ready for the next poll
        undeclareBeans(map);
    }
    return pollStatus;
}