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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.tca.processor;
import org.openecomp.dcae.apod.analytics.model.domain.cef.Domain;
import org.openecomp.dcae.apod.analytics.model.domain.cef.EventListener;
/**
* <p>
* TCA Processor which acts like a filter to filter out messages which does not belong to TCA Policy Domain
* <br>
* Pre Conditions: CEF Event Listener must be present
* </p>
*
* @author Rajiv Singla . Creation Date: 11/7/2016.
*/
public class TCACEFPolicyDomainFilter extends AbstractTCAECEFPolicyProcessor {
private static final long serialVersionUID = 1L;
@Override
public String getProcessorDescription() {
return "Filters out CEF Messages which does not match TCAPolicy Domain";
}
@Override
public TCACEFProcessorContext processMessage(TCACEFProcessorContext processorContext) {
// Safe to get event Listener here without null check as pre processor will validate if
// event listener is indeed present
final EventListener eventListener = processorContext.getCEFEventListener();
Domain cefMessageDomain;
// Extract CEF domain as it is must be present as per CEF Schema
if (eventListener.getEvent() != null &&
eventListener.getEvent().getCommonEventHeader() != null &&
eventListener.getEvent().getCommonEventHeader().getDomain() != null) {
cefMessageDomain = eventListener.getEvent().getCommonEventHeader().getDomain();
} else {
final String terminatingMessage = "Invalid CEF Message.Common Event Header Domain not present.";
setTerminatingProcessingMessage(terminatingMessage, processorContext);
return processorContext;
}
// Get Policy Domain. TCA Policy Validation must ensure that Domain is indeed present
// no null check will be required here
final String policyDomain = processorContext.getTCAPolicy().getDomain();
// If Policy domain matches CEF message domain then continue processing
if (cefMessageDomain.toString().equalsIgnoreCase(policyDomain)) {
final String finishMessage = String.format("Policy Domain and CEF Message Domain match successful." +
" Message Domain: %s, Policy Domain: %s", cefMessageDomain, policyDomain);
setFinishedProcessingMessage(finishMessage, processorContext);
} else {
// If policy domain does not match with CEF message terminate processing chain
final String terminatingMessage = String.format("Policy Domain and CEF Message Domain match unsuccessful." +
" Message Domain: %s, Policy Domain: %s", cefMessageDomain, policyDomain);
setTerminatingProcessingMessage(terminatingMessage, processorContext);
}
return processorContext;
}
}
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