/*
* Copyright (c) 2015, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
*
* WSO2 Inc. licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except
* in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.wso2.carbon.das.messageflow.data.publisher.services;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.log4j.Logger;
import org.apache.synapse.aspects.ComponentType;
import org.apache.synapse.aspects.flow.statistics.data.raw.BasicStatisticDataUnit;
import org.apache.synapse.aspects.flow.statistics.data.raw.CallbackDataUnit;
import org.apache.synapse.aspects.flow.statistics.data.raw.StatisticDataUnit;
import org.apache.synapse.aspects.flow.statistics.data.raw.StatisticsLog;
import org.apache.synapse.aspects.flow.statistics.log.StatisticsReportingEvent;
import org.apache.synapse.aspects.flow.statistics.log.StatisticsReportingEventHolder;
import org.apache.synapse.aspects.flow.statistics.log.templates.AbstractStatisticEvent;
import org.apache.synapse.aspects.flow.statistics.publishing.PublishingFlow;
import org.apache.synapse.aspects.flow.statistics.util.TracingDataCollectionHelper;
import org.wso2.carbon.das.messageflow.data.publisher.data.MessageFlowObserverStore;
import org.wso2.carbon.mediation.initializer.services.SynapseEnvironmentService;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
/**
* Worker which processes statistic events and publish to analytic server.
*/
public class MessageFlowReporterThread extends Thread {
public static final String IGNORE_ELEMENT = "IgnoreElement";
public static final int DEFAULT_HASHCODE = 0;
private static Logger log = Logger.getLogger(MessageFlowReporterThread.class);
private volatile boolean shutdownRequested = false;
private MessageFlowObserverStore messageFlowObserverStore;
/**
* The reference to the synapse environment service
*/
private SynapseEnvironmentService synapseEnvironmentService;
private long delay = 5000;
public MessageFlowReporterThread(SynapseEnvironmentService synEnvSvc,
MessageFlowObserverStore messageFlowObserverStore) {
this.synapseEnvironmentService = synEnvSvc;
this.messageFlowObserverStore = messageFlowObserverStore;
}
public void setDelay(long delay) {
if (log.isDebugEnabled()) {
log.debug("Mediation statistics reporter delay set to " + delay + " ms");
}
this.delay = delay;
}
private void delay() {
if (delay <= 0) {
return;
}
try {
Thread.sleep(delay);
} catch (InterruptedException ignore) {
}
}
public void run() {
StatisticsReportingEventHolder statisticsReportingEventHolder;
while (!shutdownRequested) {
try {
statisticsReportingEventHolder = synapseEnvironmentService.getSynapseEnvironment().getMessageDataStore().dequeue();
if (statisticsReportingEventHolder != null) {
// log.info("******* event list size - " + statisticsReportingEventHolder.getQueueSize() + " holder " +
// "count - " + statisticsReportingEventHolder.countHolder.getStatCount() + " callback - " + statisticsReportingEventHolder.countHolder.getCallBackCount());
processAndPublishEventList(statisticsReportingEventHolder);
} else {
delay();
}
} catch (Exception exception) {//catching throwable since this shouldn't fail
log.error("Error in mediation flow statistic data consumer while consuming data", exception);
}
}
}
private void processAndPublishEventList(StatisticsReportingEventHolder statisticsReportingEventHolder) {
List<StatisticsReportingEvent> remainingEvents = new ArrayList<>();
List<StatisticsLog> messageFlowLogs = new ArrayList<>();
for (StatisticsReportingEvent event : statisticsReportingEventHolder.getEventList()) {
if (event.getEventType() == AbstractStatisticEvent.EventType.STATISTICS_OPEN_EVENT) {
StatisticDataUnit statisticDataUnit = (StatisticDataUnit) event.getDataUnit();
StatisticsLog statisticsLog = new StatisticsLog(statisticDataUnit);
if (statisticDataUnit.getCurrentIndex() < messageFlowLogs.size()) {
messageFlowLogs.set(statisticDataUnit.getCurrentIndex(), statisticsLog);
} else {
// Filling the gaps, if messageFlowLogs size is less than current index given
for (int i = messageFlowLogs.size(); i < statisticDataUnit.getCurrentIndex(); i++) {
messageFlowLogs.add(null);
}
// After filling gaps, add the new statistic-data-unit
messageFlowLogs.add(statisticDataUnit.getCurrentIndex(), statisticsLog);
}
if (statisticDataUnit.getParentList() != null && !statisticDataUnit.getParentList().isEmpty()) {
for (int parent : statisticDataUnit.getParentList()) {
messageFlowLogs.get(parent).setChildren(statisticDataUnit.getCurrentIndex());
}
} else if (statisticDataUnit.getParentIndex() > -1){
messageFlowLogs.get(statisticDataUnit.getParentIndex()).setChildren(statisticDataUnit.getCurrentIndex());
}
} else {
remainingEvents.add(event);
}
}
for (StatisticsReportingEvent event : remainingEvents) {
switch (event.getEventType()) {
case STATISTICS_CLOSE_EVENT:
StatisticDataUnit dataUnit = (StatisticDataUnit) event.getDataUnit();
StatisticsLog statisticsLog = messageFlowLogs.get(dataUnit.getCurrentIndex());
int parentIndex = statisticsLog.getParentIndex();
if (parentIndex == -1 || messageFlowLogs.get(parentIndex).isFlowSplittingMediator()) {
statisticsLog.setParentIndex(parentIndex);
} else {
statisticsLog.setParentIndex(getParent(messageFlowLogs, parentIndex));
}
if (statisticsLog.getHashCode() == null) {
statisticsLog.setHashCode(statisticsLog.getComponentId().hashCode());
}
statisticsLog.decrementOpenTimes();
statisticsLog.setEndTime(dataUnit.getTime());
statisticsLog.setAfterPayload(dataUnit.getPayload());
updateParents(messageFlowLogs, statisticsLog.getParentIndex(), dataUnit.getTime());
break;
case CALLBACK_COMPLETION_EVENT:
CallbackDataUnit callbackDataUnit = (CallbackDataUnit) event.getDataUnit();
if (!callbackDataUnit.isOutOnlyFlow()) {
updateParents(messageFlowLogs, callbackDataUnit.getCurrentIndex(), callbackDataUnit.getTime());
}
break;
case CALLBACK_RECEIVED_EVENT:
CallbackDataUnit callbackReceivedDataUnit = (CallbackDataUnit) event.getDataUnit();
if (!callbackReceivedDataUnit.isOutOnlyFlow()) {
updateParents(messageFlowLogs, callbackReceivedDataUnit.getCurrentIndex(), callbackReceivedDataUnit.getTime());
}
break;
case ENDFLOW_EVENT:
break;
case FAULT_EVENT:
BasicStatisticDataUnit basicDataUnit = event.getDataUnit();
addFaultsToParents(messageFlowLogs, basicDataUnit.getCurrentIndex());
break;
case PARENT_REOPEN_EVENT:
BasicStatisticDataUnit parentReopenDataUnit = event.getDataUnit();
openFlowContinuableMediators(messageFlowLogs, parentReopenDataUnit.getCurrentIndex());
break;
default:
break;
}
}
//Removing Unnecessary entries for API invocations
if ((ComponentType.API == messageFlowLogs.get(DEFAULT_HASHCODE).getComponentType()) && messageFlowLogs.size() > 3) {
for (int i = 2; i < messageFlowLogs.size(); i++) {
StatisticsLog statisticsLog = messageFlowLogs.get(i);
if (ComponentType.API == statisticsLog.getComponentType() && messageFlowLogs.get(DEFAULT_HASHCODE).getComponentId().equals
(statisticsLog.getComponentId())) {
messageFlowLogs.get(DEFAULT_HASHCODE).setEndTime(statisticsLog.getEndTime());
statisticsLog.setStartTime(DEFAULT_HASHCODE);
statisticsLog.setEndTime(DEFAULT_HASHCODE);
statisticsLog.setComponentName(IGNORE_ELEMENT);
statisticsLog.setComponentId(IGNORE_ELEMENT);
statisticsLog.setComponentType(ComponentType.ANY);
statisticsLog.setHashCode(DEFAULT_HASHCODE);
} else if (ComponentType.RESOURCE == statisticsLog.getComponentType() && messageFlowLogs.get(1)
.getComponentId().equals(statisticsLog.getComponentId())) {
messageFlowLogs.get(1).setEndTime(statisticsLog.getEndTime());
statisticsLog.setStartTime(DEFAULT_HASHCODE);
statisticsLog.setEndTime(DEFAULT_HASHCODE);
statisticsLog.setComponentName(IGNORE_ELEMENT);
statisticsLog.setComponentId(IGNORE_ELEMENT);
statisticsLog.setComponentType(ComponentType.ANY);
statisticsLog.setHashCode(DEFAULT_HASHCODE);
}
}
}
PublishingFlow publishingFlow = TracingDataCollectionHelper.createPublishingFlow(messageFlowLogs);
messageFlowObserverStore.notifyObservers(publishingFlow);
}
void updateParents(List<StatisticsLog> messageFlowLogs, int index, long endTime) {
while (index > -1) {
StatisticsLog dataUnit = messageFlowLogs.get(index);
if (dataUnit.getEndTime() == 0 || dataUnit.getEndTime() < endTime) {
dataUnit.setEndTime(endTime);
}
index = dataUnit.getParentIndex();
}
}
private int getParent(List<StatisticsLog> messageFlowLogs, int parentIndex) {
int trueParentIndex = 0;
while (parentIndex > -1) {
StatisticsLog updatingLog = messageFlowLogs.get(parentIndex);
if (updatingLog.isOpenLog()) {
trueParentIndex = updatingLog.getCurrentIndex();
break;
}
parentIndex = updatingLog.getParentIndex();
}
return trueParentIndex;
}
/**
* Set flow continuable mediators in parent path to open state. This is used when there is a continuation call.
*
* @param messageFlowLogs raw statistic data unit
*/
private void openFlowContinuableMediators(List<StatisticsLog> messageFlowLogs, int index) {
StatisticsLog statisticsLog = messageFlowLogs.get(index);
while (statisticsLog.getCurrentIndex() > 0) {
if (statisticsLog.isFlowContinuable()) {
statisticsLog.incrementOpenTimes();
}
statisticsLog = messageFlowLogs.get(statisticsLog.getParentIndex());
}
}
void addFaultsToParents(List<StatisticsLog> messageFlowLogs, int index) {
while (index > -1) {
StatisticsLog updatingLog = messageFlowLogs.get(index);
updatingLog.incrementNoOfFaults();
index = updatingLog.getParentIndex();
}
}
public void shutdown() {
if (log.isDebugEnabled()) {
log.debug("Statistics reporter thread is being stopped");
}
shutdownRequested = true;
}
//todo this is only for test, please remove this before committing - rajith
private static void logEvent(PublishingFlow publishingFlow) {
Map<String, Object> mapping = publishingFlow.getObjectAsMap();
mapping.put("host", "localhost"); // Adding host
mapping.put("tenantId", "1234");
ObjectMapper mapper = new ObjectMapper();
String jsonString = null;
try {
jsonString = mapper.writeValueAsString(mapping);
} catch (JsonProcessingException e) {
log.error("Unable to convert", e);
}
log.info("Uncompressed data -------------------------- : " + jsonString);
}
}