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

Example 11 with TimeoutTracker

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

the class HttpMonitor method poll.

/**
     * {@inheritDoc}
     *
     * Poll the specified address for HTTP service availability.
     *
     * During the poll an attempt is made to connect on the specified port(s) (by default TCP
     * ports 80, 8080, 8888). If the connection request is successful, an HTTP 'GET' command is
     * sent to the interface. The response is parsed and a return code extracted and verified.
     * Provided that the interface's response is valid we set the service status to
     * SERVICE_AVAILABLE and return.
     */
@Override
public PollStatus poll(final MonitoredService svc, final Map<String, Object> parameters) {
    final InetAddress addr = svc.getAddress();
    final String nodeLabel = svc.getNodeLabel();
    // Cycle through the port list
    //
    int currentPort = -1;
    final HttpMonitorClient httpClient = new HttpMonitorClient(nodeLabel, addr, new TreeMap<String, Object>(parameters));
    for (int portIndex = 0; portIndex < determinePorts(httpClient.getParameters()).length && httpClient.getPollStatus() != PollStatus.SERVICE_AVAILABLE; portIndex++) {
        currentPort = determinePorts(httpClient.getParameters())[portIndex];
        httpClient.setTimeoutTracker(new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT));
        LOG.debug("Port = {}, Address = {}, {}", currentPort, addr, httpClient.getTimeoutTracker());
        httpClient.setCurrentPort(currentPort);
        String serviceInfo = new StringBuilder(addr.toString()).append(":").append(svc.getSvcName()).append(":").append(currentPort).toString();
        for (httpClient.getTimeoutTracker().reset(); httpClient.getTimeoutTracker().shouldRetry() && httpClient.getPollStatus() != PollStatus.SERVICE_AVAILABLE; httpClient.getTimeoutTracker().nextAttempt()) {
            try {
                httpClient.getTimeoutTracker().startAttempt();
                httpClient.connect();
                LOG.debug("HttpMonitor: connected to host: {} on port: {}", addr, currentPort);
                httpClient.sendHttpCommand();
                if (httpClient.isEndOfStream()) {
                    continue;
                }
                httpClient.setResponseTime(httpClient.getTimeoutTracker().elapsedTimeInMillis());
                logResponseTimes(httpClient.getResponseTime(), httpClient.getCurrentLine());
                if (httpClient.getPollStatus() == PollStatus.SERVICE_AVAILABLE && StringUtils.isNotBlank(httpClient.getResponseText())) {
                    httpClient.setPollStatus(PollStatus.SERVICE_UNAVAILABLE);
                    httpClient.readLinedMatching();
                    if (httpClient.isEndOfStream()) {
                        continue;
                    }
                    httpClient.read();
                    if (!httpClient.isResponseTextFound()) {
                        String message = "Matching text: [" + httpClient.getResponseText() + "] not found in body of HTTP response for " + serviceInfo;
                        LOG.debug(message);
                        httpClient.setReason("Matching text: [" + httpClient.getResponseText() + "] not found in body of HTTP response");
                    }
                }
            } catch (NoRouteToHostException e) {
                LOG.warn("checkStatus: No route to host exception while polling {}", serviceInfo, e);
                // Will cause outer for(;;) to terminate
                portIndex = determinePorts(httpClient.getParameters()).length;
                httpClient.setReason("No route to host exception");
            } catch (SocketTimeoutException e) {
                LOG.info("checkStatus: HTTP socket connection for service {} timed out with {}", serviceInfo, httpClient.getTimeoutTracker().toString());
                httpClient.setReason("HTTP connection timeout");
            } catch (InterruptedIOException e) {
                LOG.info(String.format("checkStatus: HTTP connection for service {} interrupted after {} bytes transferred with {}", serviceInfo, e.bytesTransferred, httpClient.getTimeoutTracker().toString()), e);
                httpClient.setReason(String.format("HTTP connection interrupted, %d bytes transferred", e.bytesTransferred));
            } catch (ConnectException e) {
                LOG.warn("Connection exception for {}", serviceInfo, e);
                httpClient.setReason("HTTP connection exception on port: " + determinePorts(httpClient.getParameters())[portIndex] + ": " + e.getMessage());
            } catch (IOException e) {
                String exceptionClass = e.getClass().getSimpleName();
                LOG.warn("{} while polling {}", exceptionClass, serviceInfo, e);
                httpClient.setReason("IOException while polling address: " + addr + ": " + e.getMessage());
            } catch (Throwable e) {
                String exceptionClass = e.getClass().getSimpleName();
                LOG.warn("Unexpected {} while polling {}", exceptionClass, serviceInfo, e);
                httpClient.setReason("Unexpected exception while polling address: " + addr + ": " + e.getMessage());
            } finally {
                httpClient.closeConnection();
            }
        }
    // end for (attempts)
    }
    // end for (ports)
    return httpClient.determinePollStatusResponse();
}

Example 12 with TimeoutTracker

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

the class HttpPostMonitor 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);
    //URI
    String strURI = ParameterMap.getKeyedString(parameters, PARAMETER_URI, DEFAULT_URI);
    //Username
    String strUser = ParameterMap.getKeyedString(parameters, PARAMETER_USERNAME, null);
    //Password
    String strPasswd = ParameterMap.getKeyedString(parameters, PARAMETER_PASSWORD, null);
    //BannerMatch
    String strBannerMatch = ParameterMap.getKeyedString(parameters, PARAMETER_BANNER, null);
    //Scheme
    String strScheme = ParameterMap.getKeyedString(parameters, PARAMETER_SCHEME, DEFAULT_SCHEME);
    //Payload
    String strPayload = ParameterMap.getKeyedString(parameters, PARAMETER_PAYLOAD, null);
    //Mimetype
    String strMimetype = ParameterMap.getKeyedString(parameters, PARAMETER_MIMETYPE, DEFAULT_MIMETYPE);
    //Charset
    String strCharset = ParameterMap.getKeyedString(parameters, PARAMETER_CHARSET, DEFAULT_CHARSET);
    //SSLFilter
    boolean boolSSLFilter = ParameterMap.getKeyedBoolean(parameters, PARAMETER_SSLFILTER, DEFAULT_SSLFILTER);
    // Get the address instance.
    InetAddress ipAddr = svc.getAddress();
    final String hostAddress = InetAddressUtils.str(ipAddr);
    LOG.debug("poll: address = {}, port = {}, {}", hostAddress, port, tracker);
    // Give it a whirl
    PollStatus serviceStatus = PollStatus.unavailable();
    for (tracker.reset(); tracker.shouldRetry() && !serviceStatus.isAvailable(); tracker.nextAttempt()) {
        HttpClientWrapper clientWrapper = null;
        try {
            tracker.startAttempt();
            clientWrapper = HttpClientWrapper.create().setConnectionTimeout(tracker.getSoTimeout()).setSocketTimeout(tracker.getSoTimeout()).setRetries(DEFAULT_RETRY);
            if (boolSSLFilter) {
                clientWrapper.trustSelfSigned(strScheme);
            }
            HttpEntity postReq;
            if (strUser != null && strPasswd != null) {
                clientWrapper.addBasicCredentials(strUser, strPasswd);
            }
            try {
                postReq = new StringEntity(strPayload, ContentType.create(strMimetype, strCharset));
            } catch (final UnsupportedCharsetException e) {
                serviceStatus = PollStatus.unavailable("Unsupported encoding encountered while constructing POST body " + e);
                break;
            }
            URIBuilder ub = new URIBuilder();
            ub.setScheme(strScheme);
            ub.setHost(hostAddress);
            ub.setPort(port);
            ub.setPath(strURI);
            LOG.debug("HttpPostMonitor: Constructed URL is {}", ub);
            HttpPost post = new HttpPost(ub.build());
            post.setEntity(postReq);
            CloseableHttpResponse response = clientWrapper.execute(post);
            LOG.debug("HttpPostMonitor: Status Line is {}", response.getStatusLine());
            if (response.getStatusLine().getStatusCode() > 399) {
                LOG.info("HttpPostMonitor: Got response status code {}", response.getStatusLine().getStatusCode());
                LOG.debug("HttpPostMonitor: Received server response: {}", response.getStatusLine());
                LOG.debug("HttpPostMonitor: Failing on bad status code");
                serviceStatus = PollStatus.unavailable("HTTP(S) Status code " + response.getStatusLine().getStatusCode());
                break;
            }
            LOG.debug("HttpPostMonitor: Response code is valid");
            double responseTime = tracker.elapsedTimeInMillis();
            HttpEntity entity = response.getEntity();
            InputStream responseStream = entity.getContent();
            String Strresponse = IOUtils.toString(responseStream);
            if (Strresponse == null)
                continue;
            LOG.debug("HttpPostMonitor: banner = {}", Strresponse);
            LOG.debug("HttpPostMonitor: responseTime= {}ms", responseTime);
            //Could it be a regex?
            if (!Strings.isNullOrEmpty(strBannerMatch) && strBannerMatch.startsWith("~")) {
                if (!Strresponse.matches(strBannerMatch.substring(1))) {
                    serviceStatus = PollStatus.unavailable("Banner does not match Regex '" + strBannerMatch + "'");
                    break;
                } else {
                    serviceStatus = PollStatus.available(responseTime);
                }
            } else {
                if (Strresponse.indexOf(strBannerMatch) > -1) {
                    serviceStatus = PollStatus.available(responseTime);
                } else {
                    serviceStatus = PollStatus.unavailable("Did not find expected Text '" + strBannerMatch + "'");
                    break;
                }
            }
        } catch (final URISyntaxException e) {
            final String reason = "URISyntaxException for URI: " + strURI + " " + e.getMessage();
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
            break;
        } catch (final Exception e) {
            final String reason = "Exception: " + e.getMessage();
            LOG.debug(reason, e);
            serviceStatus = PollStatus.unavailable(reason);
            break;
        } finally {
            IOUtils.closeQuietly(clientWrapper);
        }
    }
    // return the status of the service
    return serviceStatus;
}

Example 13 with TimeoutTracker

use of org.opennms.core.utils.TimeoutTracker 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 14 with TimeoutTracker

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

the class LdapMonitor method poll.

/**
     * {@inheritDoc}
     *
     * Poll the specified address for service availability.
     *
     * During the poll an attempt is made to connect the service.
     *
     * 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) {
    int serviceStatus = PollStatus.SERVICE_UNAVAILABLE;
    String reason = null;
    final TimeoutTracker tracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    // get the parameters
    //
    final int ldapVersion = ParameterMap.getKeyedInteger(parameters, "version", LDAPConnection.LDAP_V3);
    final int ldapPort = determinePort(parameters);
    final String searchBase = ParameterMap.getKeyedString(parameters, "searchbase", DEFAULT_BASE);
    final String searchFilter = ParameterMap.getKeyedString(parameters, "searchfilter", DEFAULT_FILTER);
    final String password = (String) parameters.get("password");
    final String ldapDn = (String) parameters.get("dn");
    String address = InetAddrUtils.str(svc.getAddress());
    // first just try a connection to the box via socket. Just in case there
    // is
    // a no way to route to the address, don't iterate through the retries,
    // as a
    // NoRouteToHost exception will only be thrown after about 5 minutes,
    // thus tying
    // up the thread
    Double responseTime = null;
    Socket socket = null;
    try {
        socket = new Socket();
        socket.connect(new InetSocketAddress(svc.getAddress(), ldapPort), tracker.getConnectionTimeout());
        socket.setSoTimeout(tracker.getSoTimeout());
        LOG.debug("LdapMonitor: connected to host: {} on port: {}", address, ldapPort);
        // We're connected, so upgrade status to unresponsive
        serviceStatus = PollStatus.SERVICE_UNRESPONSIVE;
        if (socket != null)
            socket.close();
        // lets detect the service
        LDAPConnection lc = new LDAPConnection(new TimeoutLDAPSocket(tracker.getSoTimeout()));
        for (tracker.reset(); tracker.shouldRetry() && !(serviceStatus == PollStatus.SERVICE_AVAILABLE); tracker.nextAttempt()) {
            LOG.debug("polling LDAP on {}, {}", address, tracker);
            // connect to the ldap server
            tracker.startAttempt();
            try {
                lc.connect(address, ldapPort);
                LOG.debug("connected to LDAP server {} on port {}", address, ldapPort);
            } catch (LDAPException e) {
                LOG.debug("could not connect to LDAP server {} on port {}", address, ldapPort);
                reason = "could not connect to LDAP server " + address + " on port " + ldapPort;
                continue;
            }
            // bind if possible
            if (ldapDn != null && password != null) {
                try {
                    lc.bind(ldapVersion, ldapDn, password.getBytes());
                    LOG.debug("bound to LDAP server version {} with distinguished name {}", ldapVersion, ldapDn);
                    LOG.debug("poll: responseTime= {}ms", tracker.elapsedTimeInMillis());
                } catch (LDAPException e) {
                    try {
                        lc.disconnect();
                    } catch (LDAPException ex) {
                        LOG.debug(ex.getMessage());
                    }
                    LOG.debug("could not bind to LDAP server version {} with distinguished name {}", ldapVersion, ldapDn);
                    reason = "could not bind to LDAP server version " + ldapVersion + " with distinguished name " + ldapDn;
                    continue;
                }
            }
            // do a quick search and see if any results come back
            boolean attributeOnly = true;
            String[] attrs = { LDAPConnection.NO_ATTRS };
            int searchScope = LDAPConnection.SCOPE_ONE;
            LOG.debug("running search {} from {}", searchFilter, searchBase);
            LDAPSearchResults results = null;
            int msLimit = (int) tracker.getTimeoutInMillis();
            int serverLimit = (int) tracker.getTimeoutInSeconds() + 1;
            LDAPSearchConstraints cons = new LDAPSearchConstraints(msLimit, serverLimit, // dereference: default = never
            LDAPSearchConstraints.DEREF_NEVER, // maxResults: default = 1000
            1000, // doReferrals: default = false
            false, // batchSize: default = 1
            1, // handler: default = null
            null, // hop_limit: default = 10
            10);
            try {
                results = lc.search(searchBase, searchScope, searchFilter, attrs, attributeOnly, cons);
                if (results != null && results.hasMore()) {
                    responseTime = tracker.elapsedTimeInMillis();
                    LOG.debug("search yielded {} result(s)", results.getCount());
                    serviceStatus = PollStatus.SERVICE_AVAILABLE;
                } else {
                    LOG.debug("no results found from search");
                    reason = "No results found from search";
                    serviceStatus = PollStatus.SERVICE_UNAVAILABLE;
                }
            } catch (LDAPException e) {
                try {
                    lc.disconnect();
                } catch (LDAPException ex) {
                    LOG.debug(ex.getMessage());
                }
                LOG.debug("could not perform search {} from {}", searchFilter, searchBase);
                reason = "could not perform search " + searchFilter + " from " + searchBase;
                continue;
            }
            try {
                lc.disconnect();
                LOG.debug("disconected from LDAP server {} on port {}", address, ldapPort);
            } catch (LDAPException e) {
                LOG.debug(e.getMessage());
            }
        }
    } catch (ConnectException e) {
        LOG.debug("connection refused to host {}", address, e);
        reason = "connection refused to host " + address;
    } catch (NoRouteToHostException e) {
        LOG.debug("No route to host {}", address, e);
        reason = "No route to host " + address;
    } catch (InterruptedIOException e) {
        LOG.debug("did not connect to host with {}", tracker);
        reason = "did not connect to host with " + tracker;
    } catch (Throwable t) {
        LOG.debug("An undeclared throwable exception caught contacting host {}", address, t);
        reason = "An undeclared throwable exception caught contacting host " + address;
    }
    return PollStatus.get(serviceStatus, reason, responseTime);
}

Example 15 with TimeoutTracker

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

the class AvailabilityMonitor method poll.

/** {@inheritDoc} */
@Override
public PollStatus poll(MonitoredService svc, Map<String, Object> parameters) {
    TimeoutTracker timeoutTracker = new TimeoutTracker(parameters, DEFAULT_RETRY, DEFAULT_TIMEOUT);
    for (timeoutTracker.reset(); timeoutTracker.shouldRetry(); timeoutTracker.nextAttempt()) {
        try {
            timeoutTracker.startAttempt();
            if (svc.getAddress().isReachable(timeoutTracker.getSoTimeout())) {
                return PollStatus.available(timeoutTracker.elapsedTimeInMillis());
            }
        } catch (IOException e) {
            LOG.debug("Unable to contact {}", svc.getIpAddr(), e);
        }
    }
    String reason = svc + " failed to respond";
    LOG.debug(reason);
    return PollStatus.unavailable(reason);
}