2 * ================================================================================
3 * Copyright (c) 2018 AT&T Intellectual Property. All rights reserved.
4 * ================================================================================
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 * ============LICENSE_END=========================================================
20 package org.onap.dcae.analytics.tca.core.util.function.calculation;
22 import java.util.Optional;
24 import org.onap.dcae.analytics.model.cef.CommonEventHeader;
25 import org.onap.dcae.analytics.model.cef.Domain;
26 import org.onap.dcae.analytics.model.cef.Event;
27 import org.onap.dcae.analytics.model.cef.EventListener;
28 import org.onap.dcae.analytics.tca.core.service.TcaExecutionContext;
29 import org.onap.dcae.analytics.tca.core.service.TcaProcessingContext;
32 * @author Rajiv Singla
34 public class TcaDomainFilter implements TcaCalculationFunction {
37 public TcaExecutionContext calculate(final TcaExecutionContext tcaExecutionContext) {
39 final TcaProcessingContext tcaProcessingContext = tcaExecutionContext.getTcaProcessingContext();
40 final String cefMessage = tcaExecutionContext.getCefMessage();
42 // Extract CEF domain as it is must be present as per CEF Schema
43 final Optional<Domain> domainOptional = Optional.ofNullable(tcaProcessingContext.getEventListener())
44 .map(EventListener::getEvent)
45 .map(Event::getCommonEventHeader)
46 .map(CommonEventHeader::getDomain);
48 // Check domain is present
49 if (!domainOptional.isPresent()) {
50 final String errorMessage =
51 "Event -> Common Event Header -> Domain not present. Invalid CEF Message: " + cefMessage;
52 setTerminatingMessage(errorMessage, tcaExecutionContext, true);
53 return tcaExecutionContext;
56 // Get Policy and CEF Message Domain
57 final String policyDomain = tcaExecutionContext.getTcaPolicy().getDomain();
58 final String cefMessageDomain = domainOptional.get().name();
60 // Check Policy domain matches CEF message domain
61 if (!policyDomain.equalsIgnoreCase(cefMessageDomain)) {
62 final String earlyTerminationMessage = String.format(
63 "Policy Domain does not match CEF Message Domain. Policy Domain: %s, CEF Message Domain: %s",
64 policyDomain, cefMessageDomain);
65 setTerminatingMessage(earlyTerminationMessage, tcaExecutionContext, false);
66 return tcaExecutionContext;
70 // Policy Domain and CEF Message Domain match successful
73 return tcaExecutionContext;