Examples with J4pRemoteException org.jolokia.client.exception.J4pRemoteException used on opensource projects

Example 1 with J4pRemoteException

use of org.jolokia.client.exception.J4pRemoteException 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 2 with J4pRemoteException

use of org.jolokia.client.exception.J4pRemoteException in project camel by apache.

the class DefaultJolokiaCamelController method getCamelContextInformation.

@Override
public Map<String, Object> getCamelContextInformation(String camelContextName) throws Exception {
    if (jolokia == null) {
        throw new IllegalStateException("Need to connect to remote jolokia first");
    }
    Map<String, Object> answer = new LinkedHashMap<String, Object>();
    ObjectName found = lookupCamelContext(camelContextName);
    if (found != null) {
        String pattern = String.format("%s:context=%s,type=services,name=DefaultTypeConverter", found.getDomain(), found.getKeyProperty("context"));
        ObjectName tc = ObjectName.getInstance(pattern);
        String pattern2 = String.format("%s:context=%s,type=services,name=DefaultAsyncProcessorAwaitManager", found.getDomain(), found.getKeyProperty("context"));
        ObjectName am = ObjectName.getInstance(pattern2);
        List<J4pReadRequest> list = new ArrayList<J4pReadRequest>();
        list.add(new J4pReadRequest(found));
        list.add(new J4pReadRequest(tc));
        list.add(new J4pReadRequest(am));
        List<J4pReadResponse> rr = jolokia.execute(list);
        if (rr != null && rr.size() > 0) {
            // camel context attributes
            J4pReadResponse first = rr.get(0);
            for (String key : first.getAttributes()) {
                answer.put(asKey(key), first.getValue(key));
            }
            // type converter attributes
            if (rr.size() >= 2) {
                J4pReadResponse second = rr.get(1);
                for (String key : second.getAttributes()) {
                    answer.put("typeConverter." + asKey(key), second.getValue(key));
                }
            }
            // async processor await manager attributes
            if (rr.size() >= 3) {
                J4pReadResponse second = rr.get(2);
                for (String key : second.getAttributes()) {
                    answer.put("asyncProcessorAwaitManager." + asKey(key), second.getValue(key));
                }
            }
        }
        // would be great if there was an api in jolokia to read optional (eg ignore if an mbean does not exists)
        answer.put("streamCachingEnabled", false);
        try {
            pattern = String.format("%s:context=%s,type=services,name=DefaultStreamCachingStrategy", found.getDomain(), found.getKeyProperty("context"));
            ObjectName sc = ObjectName.getInstance(pattern);
            // there is only a mbean if stream caching is enabled
            J4pReadResponse rsc = jolokia.execute(new J4pReadRequest(sc));
            if (rsc != null) {
                for (String key : rsc.getAttributes()) {
                    answer.put("streamCaching." + asKey(key), rsc.getValue(key));
                }
            }
            answer.put("streamCachingEnabled", true);
        } catch (J4pRemoteException e) {
            // ignore
            boolean ignore = InstanceNotFoundException.class.getName().equals(e.getErrorType());
            if (!ignore) {
                throw e;
            }
        }
        // store some data using special names as that is what the core-commands expects
        answer.put("name", answer.get("camelId"));
        answer.put("status", answer.get("state"));
        answer.put("version", answer.get("camelVersion"));
        answer.put("suspended", "Suspended".equals(answer.get("state")));
        TimeUnit unit = TimeUnit.valueOf((String) answer.get("timeUnit"));
        long timeout = (Long) answer.get("timeout");
        answer.put("shutdownTimeout", "" + unit.toSeconds(timeout));
        answer.put("applicationContextClassLoader", answer.get("applicationContextClassName"));
    }
    return answer;
}