--- /dev/null
+/*
+ * ===============================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 com.google.common.base.Optional;
+import com.google.common.collect.Table;
+import org.openecomp.dcae.apod.analytics.common.exception.MessageProcessingException;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.EventListener;
+import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.MetricsPerFunctionalRole;
+import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.TCAPolicy;
+import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.Threshold;
+import org.openecomp.dcae.apod.analytics.tca.utils.TCAUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import javax.annotation.Nonnull;
+
+/**
+ *<p>
+ * TCA CEF Policy Threshold processor
+ * <br>
+ * Pre Conditions: Domain and Functional Role must be present in CEF Event Listener Object
+ *</p>
+ *
+ * @author Rajiv Singla . Creation Date: 11/9/2016.
+ */
+public class TCACEFPolicyThresholdsProcessor extends AbstractTCAECEFPolicyProcessor {
+
+ private static final long serialVersionUID = 1L;
+
+ private static final Logger LOG = LoggerFactory.getLogger(TCACEFPolicyThresholdsProcessor.class);
+
+ @Override
+ public TCACEFProcessorContext preProcessor(@Nonnull TCACEFProcessorContext processorContext) {
+ // validates Domain and Functional Role are present
+ final EventListener eventListener = processorContext.getCEFEventListener();
+ final String domain = eventListener.getEvent().getCommonEventHeader().getDomain();
+ final String functionalRole = eventListener.getEvent().getCommonEventHeader().getFunctionalRole();
+ if (domain == null || functionalRole == null) {
+ final String errorMessage = "CEF Event Listener domain or functional role not Present. " +
+ "Invalid use of this Processor";
+ throw new MessageProcessingException(errorMessage, LOG, new IllegalArgumentException(errorMessage));
+ }
+ return super.preProcessor(processorContext);
+ }
+
+ @Override
+ public String getProcessorDescription() {
+ return "Applies TCA Policy rules to incoming CEF message. If any thresholds are violated attaches max " +
+ "Severity violated threshold to TCA Processor Context";
+ }
+
+ @Override
+ public TCACEFProcessorContext processMessage(TCACEFProcessorContext processorContext) {
+
+ final String cefMessage = processorContext.getMessage();
+
+ // Determine domain and functional Role
+ final EventListener eventListener = processorContext.getCEFEventListener();
+ final String functionalRole = eventListener.getEvent().getCommonEventHeader().getFunctionalRole();
+
+ // Get Table containing Functional Role and Thresholds Field Path
+ final TCAPolicy tcaPolicy = processorContext.getTCAPolicy();
+ final Table<String, String, List<Threshold>> functionalRoleFieldPathsTable =
+ TCAUtils.getPolicyFRThresholdsTableSupplier(tcaPolicy).get();
+
+ // Get Policy Field Paths for that functional Role
+ final Map<String, List<Threshold>> policyFieldPathsMap = functionalRoleFieldPathsTable.row(functionalRole);
+ final Set<String> policyFieldPaths = policyFieldPathsMap.keySet();
+
+ // Get Json Values for Policy Fields
+ final Map<String, List<Long>> messageFieldValuesMap = TCAUtils.getJsonPathValue(cefMessage, policyFieldPaths);
+
+ // Determine all violated thresholds per message field Path
+ final Map<String, Threshold> violatedThresholdsMap = new HashMap<>();
+ for (Map.Entry<String, List<Long>> messageFieldValuesMapEntry : messageFieldValuesMap.entrySet()) {
+ final String messageFieldPath = messageFieldValuesMapEntry.getKey();
+ final List<Threshold> messageFieldAssociatedPolicyThresholds = policyFieldPathsMap.get(messageFieldPath);
+ if (messageFieldAssociatedPolicyThresholds != null) {
+ final Optional<Threshold> thresholdOptional = TCAUtils.thresholdCalculator(
+ messageFieldValuesMapEntry.getValue(), messageFieldAssociatedPolicyThresholds);
+ if (thresholdOptional.isPresent()) {
+ violatedThresholdsMap.put(messageFieldPath, thresholdOptional.get());
+ }
+ }
+ }
+
+ // No threshold were violated
+ if (violatedThresholdsMap.isEmpty()) {
+
+ final String terminationMessage = "No Policy Threshold violated by the VES CEF Message.";
+ setTerminatingProcessingMessage(terminationMessage, processorContext);
+
+ } else {
+
+ // If there are policy violations then determine max priority violation
+ final Threshold maxSeverityThresholdViolation =
+ TCAUtils.prioritizeThresholdViolations(violatedThresholdsMap);
+ final MetricsPerFunctionalRole violatedMetrics = TCAUtils.createViolatedMetrics(tcaPolicy,
+ maxSeverityThresholdViolation, functionalRole);
+ // attach policy violation to processor Context
+ processorContext.setMetricsPerFunctionalRole(violatedMetrics);
+
+ final String finishMessage = String.format("Policy Threshold violation detected for threshold: %s",
+ maxSeverityThresholdViolation);
+ setFinishedProcessingMessage(finishMessage, processorContext);
+
+ }
+
+ return processorContext;
+ }
+}
Code Review / dcaegen2 / analytics / tca.git / blobdiff