diff options
Diffstat (limited to 'dcae-analytics-cdap-tca/src/main/java/org/onap/dcae/apod/analytics/cdap/tca/flowlet/TCAVESAlertsAbatementFlowlet.java')
| -rw-r--r-- | dcae-analytics-cdap-tca/src/main/java/org/onap/dcae/apod/analytics/cdap/tca/flowlet/TCAVESAlertsAbatementFlowlet.java | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/dcae-analytics-cdap-tca/src/main/java/org/onap/dcae/apod/analytics/cdap/tca/flowlet/TCAVESAlertsAbatementFlowlet.java b/dcae-analytics-cdap-tca/src/main/java/org/onap/dcae/apod/analytics/cdap/tca/flowlet/TCAVESAlertsAbatementFlowlet.java new file mode 100644 index 0000000..759c3d5 --- /dev/null +++ b/dcae-analytics-cdap-tca/src/main/java/org/onap/dcae/apod/analytics/cdap/tca/flowlet/TCAVESAlertsAbatementFlowlet.java @@ -0,0 +1,169 @@ +/* + * ===============================LICENSE_START====================================== + * dcae-analytics + * ================================================================================ + * Copyright © 2017 AT&T Intellectual Property. All rights reserved. + * ================================================================================ + * Licensed 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. + * ============================LICENSE_END=========================================== + */ + +package org.onap.dcae.apod.analytics.cdap.tca.flowlet; + +import co.cask.cdap.api.annotation.Output; +import co.cask.cdap.api.annotation.ProcessInput; +import co.cask.cdap.api.annotation.Property; +import co.cask.cdap.api.dataset.lib.ObjectMappedTable; +import co.cask.cdap.api.flow.flowlet.AbstractFlowlet; +import co.cask.cdap.api.flow.flowlet.FlowletContext; +import co.cask.cdap.api.flow.flowlet.OutputEmitter; +import org.apache.commons.lang3.StringUtils; +import org.onap.dcae.apod.analytics.cdap.common.CDAPComponentsConstants; +import org.onap.dcae.apod.analytics.cdap.common.domain.tca.ThresholdCalculatorOutput; +import org.onap.dcae.apod.analytics.cdap.common.exception.CDAPSettingsException; +import org.onap.dcae.apod.analytics.cdap.common.persistance.tca.TCAAlertsAbatementEntity; +import org.onap.dcae.apod.analytics.cdap.common.persistance.tca.TCAAlertsAbatementPersister; +import org.onap.dcae.apod.analytics.model.domain.cef.EventListener; +import org.onap.dcae.apod.analytics.model.domain.policy.tca.ClosedLoopEventStatus; +import org.onap.dcae.apod.analytics.model.domain.policy.tca.MetricsPerEventName; +import org.onap.dcae.apod.analytics.model.domain.policy.tca.Threshold; +import org.onap.dcae.apod.analytics.model.facade.tca.TCAVESResponse; +import org.onap.dcae.apod.analytics.tca.utils.TCAUtils; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.Date; + +/** + * Flowlet responsible to sending out abatement alerts + * + * @author Rajiv Singla . Creation Date: 9/11/2017. + */ +public class TCAVESAlertsAbatementFlowlet extends AbstractFlowlet { + + private static final Logger LOG = LoggerFactory.getLogger(TCAVESAlertsAbatementFlowlet.class); + + @Property + private final String tcaAlertsAbatementTableName; + + @Output(CDAPComponentsConstants.TCA_FIXED_VES_ALERTS_ABATEMENT_NAME_OUTPUT) + protected OutputEmitter<String> alertsAbatementOutputEmitter; + + private ObjectMappedTable<TCAAlertsAbatementEntity> tcaAlertsAbatementTable; + + public TCAVESAlertsAbatementFlowlet(final String tcaAlertsAbatementTableName) { + this.tcaAlertsAbatementTableName = tcaAlertsAbatementTableName; + } + + @Override + public void configure() { + setName(CDAPComponentsConstants.TCA_FIXED_VES_ALERTS_ABATEMENT_NAME_FLOWLET); + setDescription(CDAPComponentsConstants.TCA_FIXED_VES_ALERTS_ABATEMENT_DESCRIPTION_FLOWLET); + } + + @Override + public void initialize(FlowletContext flowletContext) throws Exception { + super.initialize(flowletContext); + tcaAlertsAbatementTable = getContext().getDataset(tcaAlertsAbatementTableName); + } + + @ProcessInput(CDAPComponentsConstants.TCA_FIXED_VES_TCA_CALCULATOR_NAME_OUTPUT) + public void determineAbatementAlerts(final ThresholdCalculatorOutput thresholdCalculatorOutput) throws IOException { + + final String cefMessage = thresholdCalculatorOutput.getCefMessage(); + final String alertMessageString = thresholdCalculatorOutput.getAlertMessage(); + final String violatedMetricsPerEventNameString = thresholdCalculatorOutput.getViolatedMetricsPerEventName(); + + // alerts must have violated metrics per event name present + if (StringUtils.isBlank(violatedMetricsPerEventNameString)) { + final String errorMessage = String.format( + "No violated metricsPerEventName found for VES Message: %s." + + "Ignored alert message: %s", cefMessage, alertMessageString); + throw new CDAPSettingsException(errorMessage, LOG, new IllegalStateException(errorMessage)); + } + + final MetricsPerEventName violatedMetricsPerEventName = + TCAUtils.readValue(violatedMetricsPerEventNameString, MetricsPerEventName.class); + final EventListener eventListener = TCAUtils.readValue(cefMessage, EventListener.class); + final TCAVESResponse tcavesResponse = TCAUtils.readValue(alertMessageString, TCAVESResponse.class); + final Threshold violatedThreshold = violatedMetricsPerEventName.getThresholds().get(0); + final ClosedLoopEventStatus closedLoopEventStatus = violatedThreshold.getClosedLoopEventStatus(); + + switch (closedLoopEventStatus) { + + case ONSET: + + LOG.debug("Saving information for ONSET event for cefMessage: {}", cefMessage); + TCAAlertsAbatementPersister.persist(eventListener, violatedMetricsPerEventName, tcavesResponse, + null, tcaAlertsAbatementTable); + LOG.debug("Emitting ONSET alert: {}", alertMessageString); + alertsAbatementOutputEmitter.emit(alertMessageString); + break; + + case ABATED: + + LOG.debug("Looking up previous sent alert for abated threshold: {}", violatedThreshold); + final TCAAlertsAbatementEntity previousAlertsAbatementEntry = + TCAAlertsAbatementPersister.lookUpByKey(eventListener, violatedMetricsPerEventName, + tcaAlertsAbatementTable); + + if (previousAlertsAbatementEntry != null) { + + LOG.debug("Found previous AlertsAbatementEntity: {}", previousAlertsAbatementEntry); + + final String abatementSentTS = previousAlertsAbatementEntry.getAbatementSentTS(); + if (abatementSentTS != null) { + LOG.debug("Abatement alert was already sent at timestamp: {}. " + + "Skip resending this abatement alert again", abatementSentTS); + } else { + + final long newAbatementSentTS = new Date().getTime(); + LOG.debug( + "No abatement alert was sent before." + + "Sending abatement alert:{} for the first time at:{}", + alertMessageString, newAbatementSentTS); + + // save new Abatement alert sent timestamp in table + TCAAlertsAbatementPersister.persist(eventListener, violatedMetricsPerEventName, tcavesResponse, + Long.toString(newAbatementSentTS), tcaAlertsAbatementTable); + + // Set request id to be same as previous ONSET event request ID + tcavesResponse.setRequestID(previousAlertsAbatementEntry.getRequestId()); + final String abatedAlertString = TCAUtils.writeValueAsString(tcavesResponse); + + LOG.info("Emitting ABATED alert: {}", abatedAlertString); + alertsAbatementOutputEmitter.emit(abatedAlertString); + + } + + } else { + LOG.info("No previous ONSET alert was found for this ABATED alert: {}.Skip sending abated alert.", + alertMessageString); + } + + break; + + default: + + final String errorMessage = String.format( + "Unexpected ClosedLoopEventStatus: %s. Only ONSET and ABATED are supported." + + "Ignoring alert: %s", closedLoopEventStatus, alertMessageString); + throw new CDAPSettingsException(errorMessage, LOG, new IllegalStateException(errorMessage)); + + } + + + } + +} |