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/*
* ===============================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.openecomp.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.flow.flowlet.AbstractFlowlet;
import co.cask.cdap.api.flow.flowlet.FlowletContext;
import co.cask.cdap.api.flow.flowlet.OutputEmitter;
import org.openecomp.dcae.apod.analytics.aai.AAIClientFactory;
import org.openecomp.dcae.apod.analytics.aai.domain.config.AAIHttpClientConfig;
import org.openecomp.dcae.apod.analytics.aai.service.AAIEnrichmentClient;
import org.openecomp.dcae.apod.analytics.cdap.common.CDAPComponentsConstants;
import org.openecomp.dcae.apod.analytics.cdap.common.exception.CDAPSettingsException;
import org.openecomp.dcae.apod.analytics.cdap.tca.settings.TCAAppPreferences;
import org.openecomp.dcae.apod.analytics.cdap.tca.utils.CDAPTCAUtils;
import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.ClosedLoopEventStatus;
import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.ControlLoopSchemaType;
import org.openecomp.dcae.apod.analytics.model.facade.tca.TCAVESResponse;
import org.openecomp.dcae.apod.analytics.tca.utils.TCAUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
/**
* Flowlet responsible for doing A&AI Enrichment
*
* @author Rajiv Singla . Creation Date: 9/20/2017.
*/
public class TCAVESAAIEnrichmentFlowlet extends AbstractFlowlet {
private static final Logger LOG = LoggerFactory.getLogger(TCAVESAAIEnrichmentFlowlet.class);
@Output(CDAPComponentsConstants.TCA_FIXED_VES_AAI_ENRICHMENT_NAME_OUTPUT)
protected OutputEmitter<String> aaiEnrichmentOutputEmitter;
private TCAAppPreferences tcaAppPreferences;
private AAIEnrichmentClient aaiEnrichmentClient;
@Override
public void configure() {
setName(CDAPComponentsConstants.TCA_FIXED_VES_AAI_ENRICHMENT_NAME_FLOWLET);
setDescription(CDAPComponentsConstants.TCA_FIXED_VES_AAI_ENRICHMENT_DESCRIPTION_FLOWLET);
}
@Override
public void initialize(FlowletContext flowletContext) throws Exception {
super.initialize(flowletContext);
tcaAppPreferences = CDAPTCAUtils.getValidatedTCAAppPreferences(flowletContext);
if (tcaAppPreferences.getEnableAAIEnrichment()) {
final AAIHttpClientConfig aaiHttpClientConfig =
CDAPTCAUtils.createAAIEnrichmentClientConfig(tcaAppPreferences);
aaiEnrichmentClient = AAIClientFactory.create().getEnrichmentClient(aaiHttpClientConfig);
}
}
@ProcessInput(CDAPComponentsConstants.TCA_FIXED_VES_ALERTS_ABATEMENT_NAME_OUTPUT)
public void performAAIEnrichment(final String alertMessageString) throws IOException {
// if A&AI enrichment is disabled - no A&AI lookups are required
if (!tcaAppPreferences.getEnableAAIEnrichment()) {
LOG.debug("A&AI Enrichment is disabled. Skip A&AI Enrichment for alert: {}", alertMessageString);
aaiEnrichmentOutputEmitter.emit(alertMessageString);
} else {
// determine closed Loop Event Status
final TCAVESResponse tcavesResponse = TCAUtils.readValue(alertMessageString, TCAVESResponse.class);
final ClosedLoopEventStatus closedLoopEventStatus =
ClosedLoopEventStatus.valueOf(tcavesResponse.getClosedLoopEventStatus());
if (closedLoopEventStatus == ClosedLoopEventStatus.ONSET) {
LOG.debug("Performing A&AI Enrichment of ONSET Alert: {}", alertMessageString);
final ControlLoopSchemaType controlLoopSchemaType =
TCAUtils.determineControlLoopSchemaType(tcavesResponse);
final String sourceName = TCAUtils.determineSourceName(tcavesResponse);
LOG.debug("A&AI Source Name: {}, Control Loop Schema Type: {} for ONSET Alert: {}",
sourceName, controlLoopSchemaType, alertMessageString);
if (controlLoopSchemaType == ControlLoopSchemaType.VM) {
final String aaiVMEnrichmentAPIPath = tcaAppPreferences.getAaiVMEnrichmentAPIPath();
TCAUtils.doAAIVMEnrichment(tcavesResponse, aaiEnrichmentClient, aaiVMEnrichmentAPIPath,
alertMessageString, sourceName);
} else {
final String aaiVNFEnrichmentAPIPath = tcaAppPreferences.getAaiVNFEnrichmentAPIPath();
TCAUtils.doAAIVNFEnrichment(tcavesResponse, aaiEnrichmentClient, aaiVNFEnrichmentAPIPath,
alertMessageString, sourceName);
}
final String aaiEnrichedAlert = TCAUtils.writeValueAsString(tcavesResponse);
LOG.debug("Emitting Alert after A&AI Enrichment: {}", aaiEnrichedAlert);
aaiEnrichmentOutputEmitter.emit(aaiEnrichedAlert);
// skip A&AI Enrichment of alerts with closed Loop Event Status - ABATED
} else if (closedLoopEventStatus == ClosedLoopEventStatus.ABATED) {
LOG.debug("Skipping Enrichment of Abated Alert: {}", alertMessageString);
aaiEnrichmentOutputEmitter.emit(alertMessageString);
} else {
// unsupported closed loop event status
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));
}
}
}
}
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