Examples with ClusteringAgent org.apache.axis2.clustering.ClusteringAgent used on opensource projects

Example 1 with ClusteringAgent

use of org.apache.axis2.clustering.ClusteringAgent in project wso2-synapse by wso2.

the class ServiceDynamicLoadbalanceEndpoint method init.

@Override
public void init(SynapseEnvironment synapseEnvironment) {
    if (!initialized) {
        super.init(synapseEnvironment);
        ConfigurationContext cfgCtx = ((Axis2SynapseEnvironment) synapseEnvironment).getAxis2ConfigurationContext();
        ClusteringAgent clusteringAgent = cfgCtx.getAxisConfiguration().getClusteringAgent();
        if (clusteringAgent == null) {
            throw new SynapseException("Axis2 ClusteringAgent not defined in axis2.xml");
        }
        // Add the Axis2 GroupManagement agents
        for (String domain : hostDomainMap.values()) {
            if (clusteringAgent.getGroupManagementAgent(domain) == null) {
                clusteringAgent.addGroupManagementAgent(new DefaultGroupManagementAgent(), domain);
            }
        }
        slbMembershipHandler = new ServiceLoadBalanceMembershipHandler(hostDomainMap, getAlgorithm(), cfgCtx, isClusteringEnabled, getName());
        // Initialize the SAL Sessions if already has not been initialized.
        SALSessions salSessions = SALSessions.getInstance();
        if (!salSessions.isInitialized()) {
            salSessions.initialize(isClusteringEnabled, cfgCtx);
        }
        initialized = true;
        log.info("ServiceDynamicLoadbalanceEndpoint initialized");
    }
}

Example 2 with ClusteringAgent

use of org.apache.axis2.clustering.ClusteringAgent in project wso2-synapse by wso2.

the class AbstractEndpoint method init.

// ----------------------- default method implementations and common code -----------------------
public void init(SynapseEnvironment synapseEnvironment) {
    ConfigurationContext cc = ((Axis2SynapseEnvironment) synapseEnvironment).getAxis2ConfigurationContext();
    if (!initialized) {
        // The check for clustering environment
        ClusteringAgent clusteringAgent = cc.getAxisConfiguration().getClusteringAgent();
        if (clusteringAgent != null && clusteringAgent.getStateManager() != null) {
            isClusteringEnabled = Boolean.TRUE;
        } else {
            isClusteringEnabled = Boolean.FALSE;
        }
        context = new EndpointContext(getName(), getDefinition(), isClusteringEnabled, cc, metricsMBean);
    }
    initialized = true;
    if (children != null) {
        for (Endpoint e : children) {
            e.init(synapseEnvironment);
        }
    }
    contentAware = definition != null && ((definition.getFormat() != null && !definition.getFormat().equals(SynapseConstants.FORMAT_REST)) || definition.isSecurityOn() || definition.isReliableMessagingOn() || definition.isAddressingOn() || definition.isUseMTOM() || definition.isUseSwa());
}

Example 3 with ClusteringAgent

use of org.apache.axis2.clustering.ClusteringAgent in project wso2-synapse by wso2.

the class VFSTransportListener method scanFileOrDirectory.

/**
 * Search for files that match the given regex pattern and create a list
 * Then process each of these files and update the status of the scan on
 * the poll table
 * @param entry the poll table entry for the scan
 * @param fileURI the file or directory to be scanned
 */
private void scanFileOrDirectory(final PollTableEntry entry, String fileURI) {
    if (log.isDebugEnabled()) {
        log.debug("Polling: " + VFSUtils.maskURLPassword(fileURI));
    }
    if (entry.isClusterAware()) {
        boolean leader = true;
        ClusteringAgent agent = getConfigurationContext().getAxisConfiguration().getClusteringAgent();
        if (agent != null && agent.getParameter("domain") != null) {
            // hazelcast clustering instance name
            String hazelcastInstanceName = agent.getParameter("domain").getValue() + ".instance";
            HazelcastInstance instance = Hazelcast.getHazelcastInstanceByName(hazelcastInstanceName);
            if (instance != null) {
                // dirty leader election
                leader = instance.getCluster().getMembers().iterator().next().localMember();
            } else {
                log.warn("Clustering error, running the polling task in this node");
            }
        } else {
            log.warn("Although proxy is cluster aware, clustering config are not present, hence running the" + " the polling task in this node");
        }
        if (!leader) {
            if (log.isDebugEnabled()) {
                log.debug("This Member is not the leader");
            }
            entry.setLastPollState(PollTableEntry.NONE);
            long now = System.currentTimeMillis();
            entry.setLastPollTime(now);
            entry.setNextPollTime(now + entry.getPollInterval());
            onPollCompletion(entry);
            return;
        }
        if (log.isDebugEnabled()) {
            log.debug("This Member is the leader");
        }
    }
    FileSystemOptions fso = null;
    setFileSystemClosed(false);
    try {
        fso = VFSUtils.attachFileSystemOptions(entry.getVfsSchemeProperties(), fsManager);
    } catch (Exception e) {
        log.error("Error while attaching VFS file system properties. " + e.getMessage());
    }
    FileObject fileObject = null;
    // TODO : Trying to make the correct URL out of the malformed one.
    if (fileURI.contains("vfs:")) {
        fileURI = fileURI.substring(fileURI.indexOf("vfs:") + 4);
    }
    if (log.isDebugEnabled()) {
        log.debug("Scanning directory or file : " + VFSUtils.maskURLPassword(fileURI));
    }
    boolean wasError = true;
    int retryCount = 0;
    int maxRetryCount = entry.getMaxRetryCount();
    long reconnectionTimeout = entry.getReconnectTimeout();
    while (wasError) {
        try {
            retryCount++;
            fileObject = fsManager.resolveFile(fileURI, fso);
            if (fileObject == null) {
                log.error("fileObject is null");
                throw new FileSystemException("fileObject is null");
            }
            wasError = false;
        } catch (FileSystemException e) {
            if (retryCount >= maxRetryCount) {
                processFailure("Repeatedly failed to resolve the file URI: " + VFSUtils.maskURLPassword(fileURI), e, entry);
                closeFileSystem(fileObject);
                return;
            } else {
                log.warn("Failed to resolve the file URI: " + VFSUtils.maskURLPassword(fileURI) + ", in attempt " + retryCount + ", " + e.getMessage() + " Retrying in " + reconnectionTimeout + " milliseconds.");
            }
        }
        if (wasError) {
            try {
                Thread.sleep(reconnectionTimeout);
            } catch (InterruptedException e2) {
                log.error("Thread was interrupted while waiting to reconnect.", e2);
            }
        }
    }
    try {
        if (fileObject.exists() && fileObject.isReadable()) {
            entry.setLastPollState(PollTableEntry.NONE);
            FileObject[] children = null;
            try {
                children = fileObject.getChildren();
            } catch (FileNotFolderException ignored) {
            } catch (FileSystemException ex) {
                log.error(ex.getMessage(), ex);
            }
            // if this is a file that would translate to a single message
            if (children == null || children.length == 0) {
                boolean isFailedRecord = false;
                if (entry.getMoveAfterMoveFailure() != null) {
                    isFailedRecord = isFailedRecord(fileObject, entry);
                }
                if (fileObject.getType() == FileType.FILE && !isFailedRecord) {
                    boolean runPostProcess = true;
                    if (!entry.isFileLockingEnabled() || (entry.isFileLockingEnabled() && acquireLock(fsManager, fileObject, entry, fso, true))) {
                        try {
                            if (fileObject.getType() == FileType.FILE) {
                                processFile(entry, fileObject);
                                entry.setLastPollState(PollTableEntry.SUCCSESSFUL);
                                metrics.incrementMessagesReceived();
                            } else {
                                runPostProcess = false;
                            }
                        } catch (AxisFault e) {
                            if (e.getCause() instanceof FileNotFoundException) {
                                log.warn("Error processing File URI : " + VFSUtils.maskURLPassword(fileObject.getName().toString()) + ". This can be due to file moved from another process.");
                                runPostProcess = false;
                            } else {
                                logException("Error processing File URI : " + VFSUtils.maskURLPassword(fileObject.getName().getURI()), e);
                                entry.setLastPollState(PollTableEntry.FAILED);
                                metrics.incrementFaultsReceiving();
                            }
                        }
                        if (runPostProcess) {
                            try {
                                moveOrDeleteAfterProcessing(entry, fileObject, fso);
                            } catch (AxisFault axisFault) {
                                logException("File object '" + VFSUtils.maskURLPassword(fileObject.getURL().toString()) + "' " + "cloud not be moved", axisFault);
                                entry.setLastPollState(PollTableEntry.FAILED);
                                String timeStamp = VFSUtils.getSystemTime(entry.getFailedRecordTimestampFormat());
                                addFailedRecord(entry, fileObject, timeStamp);
                            }
                        }
                        if (entry.isFileLockingEnabled()) {
                            VFSUtils.releaseLock(fsManager, fileObject, fso);
                            if (log.isDebugEnabled()) {
                                log.debug("Removed the lock file '" + VFSUtils.maskURLPassword(fileObject.toString()) + ".lock' of the file '" + VFSUtils.maskURLPassword(fileObject.toString()));
                            }
                        }
                    } else if (log.isDebugEnabled()) {
                        log.debug("Couldn't get the lock for processing the file : " + VFSUtils.maskURLPassword(fileObject.getName().getURI()));
                    } else if (isFailedRecord) {
                        if (entry.isFileLockingEnabled()) {
                            VFSUtils.releaseLock(fsManager, fileObject, fso);
                        }
                        // schedule a cleanup task if the file is there
                        if (fsManager.resolveFile(fileObject.getURL().toString(), fso) != null && removeTaskState == STATE_STOPPED && entry.getMoveAfterMoveFailure() != null) {
                            workerPool.execute(new FileRemoveTask(entry, fileObject, fso));
                        }
                        if (log.isDebugEnabled()) {
                            log.debug("File '" + VFSUtils.maskURLPassword(fileObject.getURL().toString()) + "' has been marked as a failed" + " record, it will not process");
                        }
                    }
                }
            } else {
                int failCount = 0;
                int successCount = 0;
                int processCount = 0;
                Integer iFileProcessingInterval = entry.getFileProcessingInterval();
                Integer iFileProcessingCount = entry.getFileProcessingCount();
                if (log.isDebugEnabled()) {
                    log.debug("File name pattern : " + entry.getFileNamePattern());
                }
                // Sort the files
                String strSortParam = entry.getFileSortParam();
                if (strSortParam != null) {
                    log.debug("Start Sorting the files.");
                    boolean bSortOrderAsscending = entry.isFileSortAscending();
                    if (log.isDebugEnabled()) {
                        log.debug("Sorting the files by : " + strSortParam + ". (" + bSortOrderAsscending + ")");
                    }
                    if (strSortParam.equals(VFSConstants.FILE_SORT_VALUE_NAME) && bSortOrderAsscending) {
                        Arrays.sort(children, new FileNameAscComparator());
                    } else if (strSortParam.equals(VFSConstants.FILE_SORT_VALUE_NAME) && !bSortOrderAsscending) {
                        Arrays.sort(children, new FileNameDesComparator());
                    } else if (strSortParam.equals(VFSConstants.FILE_SORT_VALUE_SIZE) && bSortOrderAsscending) {
                        Arrays.sort(children, new FileSizeAscComparator());
                    } else if (strSortParam.equals(VFSConstants.FILE_SORT_VALUE_SIZE) && !bSortOrderAsscending) {
                        Arrays.sort(children, new FileSizeDesComparator());
                    } else if (strSortParam.equals(VFSConstants.FILE_SORT_VALUE_LASTMODIFIEDTIMESTAMP) && bSortOrderAsscending) {
                        Arrays.sort(children, new FileLastmodifiedtimestampAscComparator());
                    } else if (strSortParam.equals(VFSConstants.FILE_SORT_VALUE_LASTMODIFIEDTIMESTAMP) && !bSortOrderAsscending) {
                        Arrays.sort(children, new FileLastmodifiedtimestampDesComparator());
                    }
                    log.debug("End Sorting the files.");
                }
                for (FileObject child : children) {
                    // Stop processing when service get undeployed
                    if (state != BaseConstants.STARTED || !entry.getService().isActive()) {
                        return;
                    }
                    /**
                     * Before starting to process another file, see whether the proxy is stopped or not.
                     */
                    if (entry.isCanceled()) {
                        break;
                    }
                    // skipping *.lock file
                    if (child.getName().getBaseName().endsWith(".lock")) {
                        continue;
                    }
                    // skipping subfolders
                    if (child.getType() != FileType.FILE) {
                        continue;
                    }
                    // skipping files depending on size limitation
                    if (entry.getFileSizeLimit() >= 0 && child.getContent().getSize() > entry.getFileSizeLimit()) {
                        if (log.isDebugEnabled()) {
                            log.debug("Ignoring file - " + child.getName().getBaseName() + " size - " + child.getContent().getSize() + " since it exceeds file size limit - " + entry.getFileSizeLimit());
                        }
                        continue;
                    }
                    boolean isFailedRecord = false;
                    if (entry.getMoveAfterMoveFailure() != null) {
                        isFailedRecord = isFailedRecord(child, entry);
                    }
                    if (entry.getFileNamePattern() != null && child.getName().getBaseName().matches(entry.getFileNamePattern())) {
                        // now we try to get the lock and process
                        if (log.isDebugEnabled()) {
                            log.debug("Matching file : " + child.getName().getBaseName());
                        }
                        boolean runPostProcess = true;
                        if ((!entry.isFileLockingEnabled() || (entry.isFileLockingEnabled() && VFSUtils.acquireLock(fsManager, child, fso, true))) && !isFailedRecord) {
                            // process the file
                            try {
                                if (log.isDebugEnabled()) {
                                    log.debug("Processing file :" + VFSUtils.maskURLPassword(child.toString()));
                                }
                                processCount++;
                                if (child.getType() == FileType.FILE) {
                                    processFile(entry, child);
                                    successCount++;
                                    // tell moveOrDeleteAfterProcessing() file was success
                                    entry.setLastPollState(PollTableEntry.SUCCSESSFUL);
                                    metrics.incrementMessagesReceived();
                                } else {
                                    runPostProcess = false;
                                }
                            } catch (Exception e) {
                                if (e.getCause() instanceof FileNotFoundException) {
                                    log.warn("Error processing File URI : " + VFSUtils.maskURLPassword(child.getName().toString()) + ". This can be due to file moved from another process.");
                                    runPostProcess = false;
                                } else {
                                    logException("Error processing File URI : " + VFSUtils.maskURLPassword(child.getName().getURI()), e);
                                    failCount++;
                                    // tell moveOrDeleteAfterProcessing() file failed
                                    entry.setLastPollState(PollTableEntry.FAILED);
                                    metrics.incrementFaultsReceiving();
                                }
                            }
                            // skipping un-locking file if failed to do delete/move after process
                            boolean skipUnlock = false;
                            if (runPostProcess) {
                                try {
                                    moveOrDeleteAfterProcessing(entry, child, fso);
                                } catch (AxisFault axisFault) {
                                    logException("File object '" + VFSUtils.maskURLPassword(child.getURL().toString()) + "'cloud not be moved, will remain in \"locked\" state", axisFault);
                                    skipUnlock = true;
                                    failCount++;
                                    entry.setLastPollState(PollTableEntry.FAILED);
                                    String timeStamp = VFSUtils.getSystemTime(entry.getFailedRecordTimestampFormat());
                                    addFailedRecord(entry, child, timeStamp);
                                }
                            }
                            // if there is a failure or not we'll try to release the lock
                            if (entry.isFileLockingEnabled() && !skipUnlock) {
                                VFSUtils.releaseLock(fsManager, child, fso);
                            }
                        }
                    } else if (entry.getFileNamePattern() != null && !child.getName().getBaseName().matches(entry.getFileNamePattern())) {
                        // child's file name does not match the file name pattern
                        if (log.isDebugEnabled()) {
                            log.debug("Non-Matching file : " + child.getName().getBaseName());
                        }
                    } else if (isFailedRecord) {
                        // it is a failed record
                        if (entry.isFileLockingEnabled()) {
                            VFSUtils.releaseLock(fsManager, child, fso);
                            VFSUtils.releaseLock(fsManager, fileObject, fso);
                        }
                        if (fsManager.resolveFile(child.getURL().toString(), fso) != null && removeTaskState == STATE_STOPPED && entry.getMoveAfterMoveFailure() != null) {
                            workerPool.execute(new FileRemoveTask(entry, child, fso));
                        }
                        if (log.isDebugEnabled()) {
                            log.debug("File '" + VFSUtils.maskURLPassword(fileObject.getURL().toString()) + "' has been marked as a failed record, it will not " + "process");
                        }
                    }
                    if (iFileProcessingInterval != null && iFileProcessingInterval > 0) {
                        try {
                            if (log.isDebugEnabled()) {
                                log.debug("Put the VFS processor to sleep for : " + iFileProcessingInterval);
                            }
                            Thread.sleep(iFileProcessingInterval);
                        } catch (InterruptedException ie) {
                            log.error("Unable to set the interval between file processors." + ie);
                        }
                    } else if (iFileProcessingCount != null && iFileProcessingCount <= processCount) {
                        break;
                    }
                }
                if (failCount == 0 && successCount > 0) {
                    entry.setLastPollState(PollTableEntry.SUCCSESSFUL);
                } else if (successCount == 0 && failCount > 0) {
                    entry.setLastPollState(PollTableEntry.FAILED);
                } else {
                    entry.setLastPollState(PollTableEntry.WITH_ERRORS);
                }
            }
            // processing of this poll table entry is complete
            long now = System.currentTimeMillis();
            entry.setLastPollTime(now);
            entry.setNextPollTime(now + entry.getPollInterval());
        } else if (log.isDebugEnabled()) {
            log.debug("Unable to access or read file or directory : " + VFSUtils.maskURLPassword(fileURI) + "." + " Reason: " + (fileObject.exists() ? (fileObject.isReadable() ? "Unknown reason" : "The file can not be read!") : "The file does not exists!"));
        }
        onPollCompletion(entry);
    } catch (FileSystemException e) {
        processFailure("Error checking for existence and readability : " + VFSUtils.maskURLPassword(fileURI), e, entry);
    } catch (Exception ex) {
        processFailure("Un-handled exception thrown when processing the file : ", ex, entry);
    } finally {
        closeFileSystem(fileObject);
    }
}

Example 4 with ClusteringAgent

use of org.apache.axis2.clustering.ClusteringAgent in project wso2-synapse by wso2.

the class Axis2LoadBalanceMembershipHandler method setConfigurationContext.

public void setConfigurationContext(ConfigurationContext configCtx) {
    this.configCtx = configCtx;
    // The following code does the bridging between Axis2 and Synapse load balancing
    ClusteringAgent clusteringAgent = configCtx.getAxisConfiguration().getClusteringAgent();
    if (clusteringAgent == null) {
        String msg = "In order to enable load balancing across an Axis2 cluster, " + "the cluster entry should be enabled in the axis2.xml file";
        log.error(msg);
        throw new SynapseException(msg);
    }
    groupMgtAgent = clusteringAgent.getGroupManagementAgent(lbDomain);
    if (groupMgtAgent == null) {
        String msg = "A LoadBalanceEventHandler has not been specified in the axis2.xml " + "file for the domain " + lbDomain;
        log.error(msg);
        throw new SynapseException(msg);
    }
}

Example 5 with ClusteringAgent

use of org.apache.axis2.clustering.ClusteringAgent in project wso2-synapse by wso2.

the class ThrottleMediator method init.

public void init(SynapseEnvironment se) {
    if (onAcceptMediator instanceof ManagedLifecycle) {
        ((ManagedLifecycle) onAcceptMediator).init(se);
    } else if (onAcceptSeqKey != null) {
        SequenceMediator onAcceptSeq = (SequenceMediator) se.getSynapseConfiguration().getSequence(onAcceptSeqKey);
        if (onAcceptSeq == null || onAcceptSeq.isDynamic()) {
            se.addUnavailableArtifactRef(onAcceptSeqKey);
        }
    }
    if (onRejectMediator instanceof ManagedLifecycle) {
        ((ManagedLifecycle) onRejectMediator).init(se);
    } else if (onRejectSeqKey != null) {
        SequenceMediator onRejectSeq = (SequenceMediator) se.getSynapseConfiguration().getSequence(onRejectSeqKey);
        if (onRejectSeq == null || onRejectSeq.isDynamic()) {
            se.addUnavailableArtifactRef(onRejectSeqKey);
        }
    }
    // reference to axis2 configuration context
    configContext = ((Axis2SynapseEnvironment) se).getAxis2ConfigurationContext();
    // throttling data holder initialization of
    // runtime throttle data eg :- throttle contexts
    dataHolder = (ThrottleDataHolder) configContext.getProperty(ThrottleConstants.THROTTLE_INFO_KEY);
    if (dataHolder == null) {
        log.debug("Data holder not present in current Configuration Context");
        synchronized (configContext) {
            dataHolder = (ThrottleDataHolder) configContext.getProperty(ThrottleConstants.THROTTLE_INFO_KEY);
            if (dataHolder == null) {
                dataHolder = new ThrottleDataHolder();
                configContext.setNonReplicableProperty(ThrottleConstants.THROTTLE_INFO_KEY, dataHolder);
            }
        }
    }
    // initializes whether clustering is enabled an Env. level
    ClusteringAgent clusteringAgent = configContext.getAxisConfiguration().getClusteringAgent();
    if (clusteringAgent != null) {
        isClusteringEnable = true;
    }
    // static policy initialization
    if (inLinePolicy != null) {
        log.debug("Initializing using static throttling policy : " + inLinePolicy);
        try {
            throttle = ThrottleFactory.createMediatorThrottle(PolicyEngine.getPolicy(inLinePolicy));
            if (throttle != null && concurrentAccessController == null) {
                concurrentAccessController = throttle.getConcurrentAccessController();
                if (concurrentAccessController != null) {
                    dataHolder.setConcurrentAccessController(key, concurrentAccessController);
                }
            }
        } catch (ThrottleException e) {
            handleException("Error processing the throttling policy", e, null);
        }
    }
    // access rate controller initialization
    accessControler = new AccessRateController();
    // replicator for global concurrent state maintenance
    if (isClusteringEnable) {
        concurrentAccessReplicator = new ConcurrentAccessReplicator(configContext);
    }
}