Initial TCA commit into DCAEGEN2

Change-Id: I5f7f8af2a00419854cafc34b79277df60d1af095
Issue-ID: DCAEGEN2-53
Signed-off-by: an4828 <nekrassov@att.com>

7 files changed, 1362 insertions, 0 deletions

diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/AbstractTCAECEFPolicyProcessor.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/AbstractTCAECEFPolicyProcessor.java
new file mode 100644
index 0000000..6cb8e7f
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/AbstractTCAECEFPolicyProcessor.java
@@ -0,0 +1,61 @@
+/*
+ * ===============================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.common.exception.MessageProcessingException;
+import org.openecomp.dcae.apod.analytics.common.service.processor.AbstractMessageProcessor;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.EventListener;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.annotation.Nonnull;
+
+/**
+ * <p>
+ *     Encapsulates common functionality for all TCA CEF Policy Processors
+ * </p>
+ *
+ * @author Rajiv Singla . Creation Date: 11/9/2016.
+ */
+public abstract class AbstractTCAECEFPolicyProcessor extends AbstractMessageProcessor<TCACEFProcessorContext> {
+
+    private static final Logger LOG = LoggerFactory.getLogger(AbstractTCAECEFPolicyProcessor.class);
+
+    /**
+     * For all TCA Policy Processor the pre processor ensures that {@link EventListener} object is
+     * present
+     *
+     * @param processorContext incoming Processor Context
+     * @return Pre processed Processor Context
+     */
+    @Override
+    public TCACEFProcessorContext preProcessor(@Nonnull TCACEFProcessorContext processorContext) {
+        // validates CEF Event Listener is Present
+        final EventListener cefEventListener = processorContext.getCEFEventListener();
+        if (cefEventListener == null) {
+            final String errorMessage = String.format(
+                    "CEF Event Listener is not Present.Invalid use of Processor: %s. CEF Message: %s",
+                    getProcessorInfo().getProcessorName(), processorContext.getMessage());
+            throw new MessageProcessingException(errorMessage, LOG, new IllegalArgumentException(errorMessage));
+        }
+        return super.preProcessor(processorContext);
+    }
+}
diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFJsonProcessor.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFJsonProcessor.java
new file mode 100644
index 0000000..944eba6
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFJsonProcessor.java
@@ -0,0 +1,98 @@
+/*
+ * ===============================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.apache.commons.lang3.StringUtils;
+import org.openecomp.dcae.apod.analytics.common.exception.MessageProcessingException;
+import org.openecomp.dcae.apod.analytics.common.service.processor.AbstractMessageProcessor;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.EventListener;
+import org.openecomp.dcae.apod.analytics.tca.utils.TCAUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.io.IOException;
+
+/**
+ *<p>
+ *    Processor that converts incoming presumed JSON string CEF message to {@link EventListener} object
+ *    <br>
+ *    Pre Conditions: None
+ *</p>
+ *
+ *  @author Rajiv Singla . Creation Date: 11/5/2016.
+ */
+public class TCACEFJsonProcessor extends AbstractMessageProcessor<TCACEFProcessorContext> {
+
+
+    private static final long serialVersionUID = 1L;
+
+    private static final Logger LOG = LoggerFactory.getLogger(TCACEFJsonProcessor.class);
+
+
+    @Override
+    public String getProcessorDescription() {
+        return "Converts incoming TCA CEF Message to Event Listener object";
+    }
+
+    @Override
+    public TCACEFProcessorContext processMessage(TCACEFProcessorContext processorContext) {
+
+        final String cefMessage = processorContext.getMessage();
+
+        // If CEF Message is null then processor should stop processing
+        if (cefMessage == null) {
+            String errorMessage = "Null CEF message cannot be converted to CEF Event Listener Object";
+            throw new MessageProcessingException(errorMessage, LOG, new IllegalArgumentException(errorMessage));
+        }
+
+        // If CEF Message is blank then processor stop processing
+        if (StringUtils.isBlank(cefMessage)) {
+            setTerminatingProcessingMessage("Blank CEF message cannot be converted to CEF Event Listener Object",
+                    processorContext);
+            return processorContext;
+        }
+
+        // trim cef message
+        final String trimmedCEFMessage = cefMessage.trim();
+
+        // if message does not start with curly brace and ends with curly brace, it is not a valid cef message
+        // processor will stop processing
+        if (!(trimmedCEFMessage.startsWith("{") && trimmedCEFMessage.endsWith("}"))) {
+            setTerminatingProcessingMessage("CEF Message must start with curly brace and must end with curly brace",
+                    processorContext);
+            return processorContext;
+        }
+
+        // try parsing the cef message
+        try {
+            final EventListener eventListener = TCAUtils.readValue(trimmedCEFMessage, EventListener.class);
+            setFinishedProcessingMessage("CEF JSON to Event Listener Conversion Successful", processorContext);
+            // set new Event Listener in the Processor Context
+            processorContext.setCEFEventListener(eventListener);
+            return processorContext;
+        } catch (IOException e) {
+            final String errorMessage = String.format("Parsing Failed for CEF Message: %s, Error: %s", cefMessage, e);
+            // If parsing fails throw an exception
+            throw new MessageProcessingException(errorMessage, LOG, e);
+        }
+
+    }
+}
diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyDomainFilter.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyDomainFilter.java
new file mode 100644
index 0000000..40d6330
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyDomainFilter.java
@@ -0,0 +1,83 @@
+/*
+ * ===============================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.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();
+
+        String 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.equals(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;
+    }
+}
diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyFunctionalRoleFilter.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyFunctionalRoleFilter.java
new file mode 100644
index 0000000..8a97299
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyFunctionalRoleFilter.java
@@ -0,0 +1,91 @@
+/*
+ * ===============================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.Joiner;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.EventListener;
+import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.TCAPolicy;
+
+import java.util.List;
+
+import static org.openecomp.dcae.apod.analytics.tca.utils.TCAUtils.getPolicyFunctionalRoleSupplier;
+
+/**
+ * <p>
+ *     TCA Processor that acts like a filter to filter out messages which does not belong to TCA Policy Functional Roles
+ *     <br>
+ *     Pre Conditions: CEF Event Listener must be present
+ * </p>
+ *
+ * @author Rajiv Singla . Creation Date: 11/9/2016.
+ */
+public class TCACEFPolicyFunctionalRoleFilter extends AbstractTCAECEFPolicyProcessor {
+
+    private static final long serialVersionUID = 1L;
+
+    @Override
+    public String getProcessorDescription() {
+        return "Filters out CEF Messages which does not match Policy Functional Roles";
+    }
+
+    @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();
+
+        String cefMessageFunctionalRole;
+
+        if (eventListener.getEvent() != null &&
+                eventListener.getEvent().getCommonEventHeader() != null &&
+                eventListener.getEvent().getCommonEventHeader().getFunctionalRole() != null) {
+            cefMessageFunctionalRole = eventListener.getEvent().getCommonEventHeader().getFunctionalRole();
+        } else {
+            String terminationMessage = "Invalid CEF Message.Common Event Header Functional Role not present.";
+            setTerminatingProcessingMessage(terminationMessage, processorContext);
+            return processorContext;
+        }
+
+        // Determine Policy Functional Roles
+        final TCAPolicy tcaPolicy = processorContext.getTCAPolicy();
+        final List<String> policyFunctionalRoles = getPolicyFunctionalRoleSupplier(tcaPolicy).get();
+        final String policyFunctionalRolesString = Joiner.on(",").join(policyFunctionalRoles);
+
+        // If Policy functional Roles contains CEF message Functional Role then continue processing
+        if (policyFunctionalRoles.contains(cefMessageFunctionalRole)) {
+            final String finishMessage = String.format(
+                    "Policy Functional Roles and CEF Message Functional match successful." +
+                            "Message Functional Role: %s, Policy Functional Roles: %s",
+                    cefMessageFunctionalRole, policyFunctionalRolesString);
+            setFinishedProcessingMessage(finishMessage, processorContext);
+        } else {
+            // If Policy functional Roles does not contain CEF message Functiona Role then terminate processing
+            final String terminatingMessage = String.format(
+                    "Policy Domain and CEF Message Domain match unsuccessful." +
+                            "Message Functional Role: %s, Policy Functional Roles: %s",
+                    cefMessageFunctionalRole, policyFunctionalRolesString);
+            setTerminatingProcessingMessage(terminatingMessage, processorContext);
+        }
+
+        return processorContext;
+    }
+}
diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyThresholdsProcessor.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyThresholdsProcessor.java
new file mode 100644
index 0000000..4d49cbb
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFPolicyThresholdsProcessor.java
@@ -0,0 +1,135 @@
+/*
+ * ===============================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;
+    }
+}
diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFProcessorContext.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFProcessorContext.java
new file mode 100644
index 0000000..d2ba545
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/processor/TCACEFProcessorContext.java
@@ -0,0 +1,103 @@
+/*
+ * ===============================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.common.service.processor.AbstractProcessorContext;
+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;
+
+/**
+ *  TCA CEF Policy Processor Context
+ *
+ * @author Rajiv Singla . Creation Date: 11/7/2016.
+ */
+public class TCACEFProcessorContext extends AbstractProcessorContext {
+
+    private static final long serialVersionUID = 1L;
+
+    private final TCAPolicy tcaPolicy;
+    private EventListener eventListener;
+    private MetricsPerFunctionalRole metricsPerFunctionalRole;
+
+    public TCACEFProcessorContext(final String message, boolean canProcessingContinue, final TCAPolicy tcaPolicy) {
+        super(message, canProcessingContinue);
+        this.tcaPolicy = tcaPolicy;
+        // present only if cef incoming message can be parsed successfully to Event Listener Object
+        this.eventListener = null;
+        // present only if there are any threshold violations are detected
+        this.metricsPerFunctionalRole = null;
+    }
+
+    // Auxiliary Constructor which default canProcessingContinue Flag to true
+    public TCACEFProcessorContext(final String message, final TCAPolicy tcaPolicy) {
+        this(message, true, tcaPolicy);
+    }
+
+    /**
+     * Returns {@link TCAPolicy} Object
+     *
+     * @return TCA Policy
+     */
+    public TCAPolicy getTCAPolicy() {
+        return tcaPolicy;
+    }
+
+    /**
+     * Returns Common Event Format {@link EventListener} if present else null
+     *
+     * @return CEF Event Listener
+     */
+    public EventListener getCEFEventListener() {
+        return eventListener;
+    }
+
+
+    /**
+     * Sets new {@link EventListener}
+     *
+     * @param eventListener set new value for CEF event listener
+     */
+    public void setCEFEventListener(final EventListener eventListener) {
+        this.eventListener = eventListener;
+    }
+
+
+    /**
+     * Returns TCA Policy {@link MetricsPerFunctionalRole} which was has violated Threshold for the CEF Message if
+     * present else null
+     *
+     * @return Violated Threshold
+     */
+    public MetricsPerFunctionalRole getMetricsPerFunctionalRole() {
+        return metricsPerFunctionalRole;
+    }
+
+    /**
+     * Assign new TCA Policy {@link MetricsPerFunctionalRole} which was has violated Threshold for the CEF Message
+     *
+     * @param metricsPerFunctionalRole new value for Metrics Per Functional Role with violated threshold
+     */
+    public void setMetricsPerFunctionalRole(MetricsPerFunctionalRole metricsPerFunctionalRole) {
+        this.metricsPerFunctionalRole = metricsPerFunctionalRole;
+    }
+
+}
diff --git a/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/utils/TCAUtils.java b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/utils/TCAUtils.java
new file mode 100644
index 0000000..2465fb4
--- /dev/null
+++ b/dcae-analytics-tca/src/main/java/org/openecomp/dcae/apod/analytics/tca/utils/TCAUtils.java
@@ -0,0 +1,791 @@
+/*
+ * ===============================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.utils;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.google.common.base.Function;
+import com.google.common.base.Optional;
+import com.google.common.base.Predicate;
+import com.google.common.base.Predicates;
+import com.google.common.base.Supplier;
+import com.google.common.base.Suppliers;
+import com.google.common.collect.HashBasedTable;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
+import com.google.common.collect.Table;
+import com.jayway.jsonpath.DocumentContext;
+import com.jayway.jsonpath.JsonPath;
+import com.jayway.jsonpath.TypeRef;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.commons.lang3.tuple.ImmutablePair;
+import org.apache.commons.lang3.tuple.Pair;
+import org.openecomp.dcae.apod.analytics.common.AnalyticsConstants;
+import org.openecomp.dcae.apod.analytics.common.exception.MessageProcessingException;
+import org.openecomp.dcae.apod.analytics.common.service.processor.AbstractMessageProcessor;
+import org.openecomp.dcae.apod.analytics.common.service.processor.GenericMessageChainProcessor;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.AlertAction;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.AlertType;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.CommonEventHeader;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.Criticality;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.EventListener;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.EventSeverity;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.PerformanceCounter;
+import org.openecomp.dcae.apod.analytics.model.domain.cef.ThresholdCrossingAlertFields;
+import org.openecomp.dcae.apod.analytics.model.domain.policy.tca.Direction;
+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.model.facade.tca.AAI;
+import org.openecomp.dcae.apod.analytics.model.facade.tca.TCAVESResponse;
+import org.openecomp.dcae.apod.analytics.model.util.AnalyticsModelIOUtils;
+import org.openecomp.dcae.apod.analytics.model.util.AnalyticsModelJsonUtils;
+import org.openecomp.dcae.apod.analytics.tca.processor.TCACEFJsonProcessor;
+import org.openecomp.dcae.apod.analytics.tca.processor.TCACEFPolicyDomainFilter;
+import org.openecomp.dcae.apod.analytics.tca.processor.TCACEFPolicyFunctionalRoleFilter;
+import org.openecomp.dcae.apod.analytics.tca.processor.TCACEFPolicyThresholdsProcessor;
+import org.openecomp.dcae.apod.analytics.tca.processor.TCACEFProcessorContext;
+import org.quartz.Job;
+import org.quartz.JobBuilder;
+import org.quartz.JobDataMap;
+import org.quartz.JobDetail;
+import org.quartz.Scheduler;
+import org.quartz.SchedulerException;
+import org.quartz.SimpleScheduleBuilder;
+import org.quartz.SimpleTrigger;
+import org.quartz.TriggerBuilder;
+import org.quartz.impl.StdSchedulerFactory;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.SortedMap;
+import java.util.TreeMap;
+import java.util.UUID;
+
+import javax.annotation.Nonnull;
+import javax.annotation.Nullable;
+
+import static com.google.common.collect.Lists.newArrayList;
+import static org.apache.commons.lang3.time.DateFormatUtils.SMTP_DATETIME_FORMAT;
+
+/**
+ * Utility Helper methods for TCA sub module only. Extends {@link AnalyticsModelJsonUtils} to get
+ * pre configured Json Object Mapper understand serialization and deserialization of CEF Message
+ * and TCA Policy
+ *
+ * @author Rajiv Singla . Creation Date: 10/24/2016.
+ */
+public abstract class TCAUtils extends AnalyticsModelJsonUtils {
+
+    private static final Logger LOG = LoggerFactory.getLogger(TCAUtils.class);
+
+    /**
+     * Threshold Comparator which is used to order thresholds based on their severity e.g. ( CRITICAL, MAJOR, MINOR,
+     * WARNING )
+     */
+    private static final Comparator<Threshold> THRESHOLD_COMPARATOR = new Comparator<Threshold>() {
+        @Override
+        public int compare(Threshold threshold1, Threshold threshold2) {
+            return threshold1.getSeverity().compareTo(threshold2.getSeverity());
+        }
+    };
+
+    /**
+     * {@link Function} that extracts {@link TCAPolicy#getMetricsPerFunctionalRole()} from {@link TCAPolicy}
+     *
+     * @return TCA Policy Metrics Per Functional Roles List
+     */
+    public static Function<TCAPolicy, List<MetricsPerFunctionalRole>> tcaPolicyMetricsExtractorFunction() {
+        return new Function<TCAPolicy, List<MetricsPerFunctionalRole>>() {
+            @Nullable
+            @Override
+            public List<MetricsPerFunctionalRole> apply(@Nonnull TCAPolicy tcaPolicy) {
+                return tcaPolicy.getMetricsPerFunctionalRole();
+            }
+        };
+    }
+
+    /**
+     * {@link Function} that extracts {@link MetricsPerFunctionalRole#getFunctionalRole()} from
+     * {@link MetricsPerFunctionalRole}
+     *
+     * @return Functional role or a Metrics Per Functional Role object
+     */
+    public static Function<MetricsPerFunctionalRole, String> tcaFunctionalRoleExtractorFunction() {
+        return new Function<MetricsPerFunctionalRole, String>() {
+            @Override
+            public String apply(@Nonnull MetricsPerFunctionalRole metricsPerFunctionalRole) {
+                return metricsPerFunctionalRole.getFunctionalRole();
+            }
+        };
+    }
+
+
+    /**
+     * Extracts {@link TCAPolicy} Functional Roles
+     *
+     * @param tcaPolicy TCA Policy
+     * @return List of functional Roles in the tca Policy
+     */
+    public static List<String> getPolicyFunctionalRoles(@Nonnull final TCAPolicy tcaPolicy) {
+        final List<MetricsPerFunctionalRole> metricsPerFunctionalRoles =
+                tcaPolicyMetricsExtractorFunction().apply(tcaPolicy);
+
+        return Lists.transform(metricsPerFunctionalRoles, tcaFunctionalRoleExtractorFunction());
+    }
+
+    /**
+     * A {@link Supplier} which caches {@link TCAPolicy} Functional Roles as they are not expected to
+     * change during runtime
+     *
+     * @param tcaPolicy TCA Policy
+     * @return a Supplier that memoize the Functional roles
+     */
+    public static Supplier<List<String>> getPolicyFunctionalRoleSupplier(@Nonnull final TCAPolicy tcaPolicy) {
+        return Suppliers.memoize(new Supplier<List<String>>() {
+            @Override
+            public List<String> get() {
+                return getPolicyFunctionalRoles(tcaPolicy);
+            }
+        });
+    }
+
+
+    /**
+     * Creates a Table to lookup thresholds of a {@link TCAPolicy} by its Functional Role and Threshold Field path
+     *
+     * @param tcaPolicy TCA Policy
+     * @return A table with Keys of functional role and field path containing List of threshold as values
+     */
+    public static Table<String, String, List<Threshold>> getPolicyFRThresholdsTable(final TCAPolicy tcaPolicy) {
+        final Table<String, String, List<Threshold>> domainFRTable = HashBasedTable.create();
+        for (MetricsPerFunctionalRole metricsPerFunctionalRole : tcaPolicy.getMetricsPerFunctionalRole()) {
+            final String functionalRole = metricsPerFunctionalRole.getFunctionalRole();
+            final List<Threshold> thresholds = metricsPerFunctionalRole.getThresholds();
+            for (Threshold threshold : thresholds) {
+                final List<Threshold> existingThresholds = domainFRTable.get(functionalRole, threshold.getFieldPath());
+                if (existingThresholds == null) {
+                    final LinkedList<Threshold> newThresholdList = new LinkedList<>();
+                    newThresholdList.add(threshold);
+                    domainFRTable.put(functionalRole, threshold.getFieldPath(), newThresholdList);
+                } else {
+                    domainFRTable.get(functionalRole, threshold.getFieldPath()).add(threshold);
+                }
+            }
+        }
+        return domainFRTable;
+    }
+
+
+    /**
+     * A {@link Supplier} which caches Policy Functional Role and Threshold Field Path Thresholds lookup table
+     *
+     * @param tcaPolicy TCA Policy
+     * @return Cached Supplier for table with Keys of functional role and field path containing thresholds as values
+     */
+    public static Supplier<Table<String, String, List<Threshold>>> getPolicyFRThresholdsTableSupplier
+    (final TCAPolicy tcaPolicy) {
+        return Suppliers.memoize(new Supplier<Table<String, String, List<Threshold>>>() {
+            @Override
+            public Table<String, String, List<Threshold>> get() {
+                return getPolicyFRThresholdsTable(tcaPolicy);
+            }
+        });
+    }
+
+
+    /**
+     * Creates a {@link GenericMessageChainProcessor} of {@link TCACEFJsonProcessor},
+     * {@link TCACEFPolicyDomainFilter} and {@link TCACEFPolicyFunctionalRoleFilter}s to
+     * filter out messages which does not match policy domain or functional role
+     *
+     * @param cefMessage CEF Message
+     * @param tcaPolicy TCA Policy
+     * @return Message Process Context after processing filter chain
+     */
+    public static TCACEFProcessorContext filterCEFMessage(@Nullable final String cefMessage,
+                                                          @Nonnull final TCAPolicy tcaPolicy) {
+
+        final TCACEFJsonProcessor jsonProcessor = new TCACEFJsonProcessor();
+        final TCACEFPolicyDomainFilter domainFilter = new TCACEFPolicyDomainFilter();
+        final TCACEFPolicyFunctionalRoleFilter functionalRoleFilter = new TCACEFPolicyFunctionalRoleFilter();
+        // Create a list of message processors
+        final ImmutableList<AbstractMessageProcessor<TCACEFProcessorContext>> messageProcessors =
+                ImmutableList.of(jsonProcessor, domainFilter, functionalRoleFilter);
+        final TCACEFProcessorContext processorContext = new TCACEFProcessorContext(cefMessage, tcaPolicy);
+        // Create a message processors chain
+        final GenericMessageChainProcessor<TCACEFProcessorContext> tcaProcessingChain =
+                new GenericMessageChainProcessor<>(messageProcessors, processorContext);
+        // process chain
+        return tcaProcessingChain.processChain();
+    }
+
+
+    /**
+     * Extracts json path values for given json Field Paths from using Json path notation. Assumes
+     * that values extracted are always long
+     *
+     * @param message CEF Message
+     * @param jsonFieldPaths Json Field Paths
+     * @return Map containing key as json path and values as values associated with that json path
+     */
+    public static Map<String, List<Long>> getJsonPathValue(@Nonnull String message, @Nonnull Set<String>
+            jsonFieldPaths) {
+
+        final Map<String, List<Long>> jsonFieldPathMap = new HashMap<>();
+        final DocumentContext documentContext = JsonPath.parse(message);
+
+        for (String jsonFieldPath : jsonFieldPaths) {
+            final List<Long> jsonFieldValues = documentContext.read(jsonFieldPath, new TypeRef<List<Long>>() {
+            });
+            // If Json Field Values are not or empty
+            if (jsonFieldValues != null && !jsonFieldValues.isEmpty()) {
+                // Filter out all null values in the filed values list
+                final List<Long> nonNullValues = Lists.newLinkedList(Iterables.filter(jsonFieldValues,
+                        Predicates.<Long>notNull()));
+                // If there are non null values put them in the map
+                if (!nonNullValues.isEmpty()) {
+                    jsonFieldPathMap.put(jsonFieldPath, nonNullValues);
+                }
+            }
+        }
+
+        return jsonFieldPathMap;
+    }
+
+    /**
+     * Computes if any CEF Message Fields have violated any Policy Thresholds. For the same policy field path
+     * it applies threshold in order of their severity and record the first threshold per message field path
+     *
+     * @param messageFieldValues Field Path Values extracted from CEF Message
+     * @param fieldThresholds Policy Thresholds for Field Path
+     * @return Optional of violated threshold for a field path
+     */
+    public static Optional<Threshold> thresholdCalculator(final List<Long> messageFieldValues, final List<Threshold>
+            fieldThresholds) {
+        // order thresholds by severity
+        Collections.sort(fieldThresholds, THRESHOLD_COMPARATOR);
+        // Now apply each threshold to field values
+        for (Threshold fieldThreshold : fieldThresholds) {
+            for (Long messageFieldValue : messageFieldValues) {
+                final Boolean isThresholdViolated =
+                        fieldThreshold.getDirection().operate(messageFieldValue, fieldThreshold.getThresholdValue());
+                if (isThresholdViolated) {
+                    final Threshold violatedThreshold = Threshold.copy(fieldThreshold);
+                    violatedThreshold.setActualFieldValue(messageFieldValue);
+                    return Optional.of(violatedThreshold);
+                }
+            }
+        }
+        return Optional.absent();
+    }
+
+    /**
+     * Prioritize Threshold to be reported in case there was multiple TCA violations in a single CEF message.
+     * Grabs first highest priority violated threshold
+     *
+     * @param violatedThresholdsMap Map containing field Path and associated violated Thresholds
+     * @return First Highest priority violated threshold
+     */
+    public static Threshold prioritizeThresholdViolations(final Map<String, Threshold> violatedThresholdsMap) {
+
+        final List<Threshold> violatedThresholds = newArrayList(violatedThresholdsMap.values());
+
+        if (violatedThresholds.size() == 1) {
+            return violatedThresholds.get(0);
+        }
+        Collections.sort(violatedThresholds, THRESHOLD_COMPARATOR);
+        // Just grab the first violated threshold with highest priority
+        return violatedThresholds.get(0);
+    }
+
+
+    /**
+     * Creates {@link MetricsPerFunctionalRole} object which contains violated thresholds
+     *
+     * @param tcaPolicy TCA Policy
+     * @param violatedThreshold Violated thresholds
+     * @param functionalRole Functional Role
+     *
+     * @return MetricsPerFunctionalRole object containing one highest severity violated threshold
+     */
+    public static MetricsPerFunctionalRole createViolatedMetrics(@Nonnull final TCAPolicy tcaPolicy,
+                                                                 @Nonnull final Threshold violatedThreshold,
+                                                                 @Nonnull final String functionalRole) {
+
+        final ArrayList<MetricsPerFunctionalRole> metricsPerFunctionalRoles = newArrayList(
+                Iterables.filter(tcaPolicy.getMetricsPerFunctionalRole(), new Predicate<MetricsPerFunctionalRole>() {
+                    @Override
+                    public boolean apply(@Nonnull MetricsPerFunctionalRole metricsPerFunctionalRole) {
+                        return metricsPerFunctionalRole.getFunctionalRole().equals(functionalRole);
+                    }
+                }));
+        // TCA policy must have only one metrics role per functional role
+        if (metricsPerFunctionalRoles.size() == 1) {
+            final MetricsPerFunctionalRole violatedMetrics =
+                    MetricsPerFunctionalRole.copy(metricsPerFunctionalRoles.get(0));
+            violatedMetrics.setThresholds(ImmutableList.of(Threshold.copy(violatedThreshold)));
+            return violatedMetrics;
+        } else {
+            final String errorMessage = String.format("TCA Policy must contain functional Role: %s", functionalRole);
+            throw new MessageProcessingException(errorMessage, LOG, new IllegalStateException(errorMessage));
+        }
+    }
+
+    /**
+     * Computes threshold violations
+     *
+     * @param processorContext Filtered processor Context
+     * @return processor context with any threshold violations
+     */
+    public static TCACEFProcessorContext computeThresholdViolations(final TCACEFProcessorContext processorContext) {
+        final TCACEFPolicyThresholdsProcessor policyThresholdsProcessor = new TCACEFPolicyThresholdsProcessor();
+        return policyThresholdsProcessor.apply(processorContext);
+    }
+
+
+    /**
+     * Creates TCA Alert String - Alert String is created in both {@link EventListener} or {@link TCAVESResponse}
+     * formats
+     *
+     * @param processorContextWithViolations processor context which has TCA violations
+     * @param tcaAppName tca app name
+     * @param isAlertInCEFFormat determines if output alert is in CEF format
+     *
+     * @return TCA Alert String
+     *
+     * @throws JsonProcessingException If alert cannot be parsed into JSON String
+     */
+    public static String createTCAAlertString(final TCACEFProcessorContext processorContextWithViolations,
+                                              final String tcaAppName,
+                                              final Boolean isAlertInCEFFormat) throws JsonProcessingException {
+        if (isAlertInCEFFormat != null && isAlertInCEFFormat) {
+            final EventListener eventListenerWithViolations =
+                    addThresholdViolationFields(processorContextWithViolations);
+            final String alertString = writeValueAsString(eventListenerWithViolations);
+            LOG.debug("Created alert in CEF Format: {}", alertString);
+            return alertString;
+        } else {
+            final TCAVESResponse newTCAVESResponse =
+                    createNewTCAVESResponse(processorContextWithViolations, tcaAppName);
+            final String alertString = writeValueAsString(newTCAVESResponse);
+            LOG.debug("Created alert in Non CEF Format: {}", alertString);
+            return alertString;
+        }
+    }
+
+    /**
+     * Adds threshold violation fields to {@link EventListener}
+     *
+     * @param processorContextWithViolations processor context that contains violations
+     * @return event listener with threshold crossing alert fields populated
+     */
+    public static EventListener addThresholdViolationFields(
+            final TCACEFProcessorContext processorContextWithViolations) {
+
+        final MetricsPerFunctionalRole metricsPerFunctionalRole =
+                processorContextWithViolations.getMetricsPerFunctionalRole();
+        // confirm violations are indeed present
+        if (metricsPerFunctionalRole == null) {
+            final String errorMessage = "No violations metrics. Unable to add Threshold Violation Fields";
+            throw new MessageProcessingException(errorMessage, LOG, new IllegalArgumentException(errorMessage));
+        }
+
+        // get violated threshold
+        final Threshold violatedThreshold = metricsPerFunctionalRole.getThresholds().get(0);
+        final EventListener eventListener = processorContextWithViolations.getCEFEventListener();
+        final CommonEventHeader commonEventHeader = eventListener.getEvent().getCommonEventHeader();
+
+        // create new threshold crossing alert fields
+        final ThresholdCrossingAlertFields thresholdCrossingAlertFields = new ThresholdCrossingAlertFields();
+        thresholdCrossingAlertFields.setEventStartTimestamp(commonEventHeader.getStartEpochMicrosec().toString());
+        thresholdCrossingAlertFields.setEventSeverity(violatedThreshold.getSeverity());
+        thresholdCrossingAlertFields.setCollectionTimestamp(SMTP_DATETIME_FORMAT.format(new Date()));
+        thresholdCrossingAlertFields.setAlertAction(AlertAction.SET);
+        thresholdCrossingAlertFields.setAlertType(AlertType.INTERFACE_ANOMALY);
+        thresholdCrossingAlertFields.setAlertDescription(violatedThreshold.getDirection().toString());
+        thresholdCrossingAlertFields.setInterfaceName(commonEventHeader.getReportingEntityName());
+        thresholdCrossingAlertFields.setElementType(commonEventHeader.getFunctionalRole());
+
+        // create new performance count
+        final PerformanceCounter performanceCounter = new PerformanceCounter();
+        performanceCounter.setCriticality(convertSeverityToCriticality(violatedThreshold.getSeverity()));
+        performanceCounter.setName(violatedThreshold.getFieldPath());
+        performanceCounter.setValue(violatedThreshold.getActualFieldValue().toString());
+        performanceCounter.setThresholdCrossed(violatedThreshold.getThresholdValue().toString());
+
+        // set additional parameters for threshold crossing alert fields
+        thresholdCrossingAlertFields.setAdditionalParameters(ImmutableList.of(performanceCounter));
+
+        // add threshold crossing fields to existing event listener
+        eventListener.getEvent().setThresholdCrossingAlertFields(thresholdCrossingAlertFields);
+
+        return eventListener;
+    }
+
+    /**
+     * Converts {@link EventSeverity} to {@link Criticality}
+     *
+     * @param eventSeverity event severity
+     *
+     * @return performance counter criticality
+     */
+    private static Criticality convertSeverityToCriticality(final EventSeverity eventSeverity) {
+        switch (eventSeverity) {
+            case CRITICAL:
+                return Criticality.CRIT;
+            case MAJOR:
+                return Criticality.MAJ;
+            default:
+                return Criticality.UNKNOWN;
+        }
+    }
+
+    /**
+     * Creates {@link TCAVESResponse} object
+     *
+     * @param processorContext processor Context with violations
+     * @param tcaAppName TCA App Name
+     *
+     * @return TCA VES Response Message
+     */
+    public static TCAVESResponse createNewTCAVESResponse(final TCACEFProcessorContext processorContext,
+                                                         final String tcaAppName) {
+
+        final MetricsPerFunctionalRole metricsPerFunctionalRole = processorContext.getMetricsPerFunctionalRole();
+        // confirm violations are indeed present
+        if (metricsPerFunctionalRole == null) {
+            final String errorMessage = "No violations metrics. Unable to create VES Response";
+            throw new MessageProcessingException(errorMessage, LOG, new IllegalArgumentException(errorMessage));
+        }
+
+        final String functionalRole = metricsPerFunctionalRole.getFunctionalRole();
+        final Threshold violatedThreshold = metricsPerFunctionalRole.getThresholds().get(0);
+        final EventListener eventListener = processorContext.getCEFEventListener();
+        final CommonEventHeader commonEventHeader = eventListener.getEvent().getCommonEventHeader();
+
+        final TCAVESResponse tcavesResponse = new TCAVESResponse();
+        // ClosedLoopControlName included in the DCAE configuration Policy
+        tcavesResponse.setClosedLoopControlName(violatedThreshold.getClosedLoopControlName());
+        // version included in the DCAE configuration Policy
+        tcavesResponse.setVersion(violatedThreshold.getVersion());
+        // Generate a UUID for this output message
+        tcavesResponse.setRequestID(UUID.randomUUID().toString());
+        // commonEventHeader.startEpochMicrosec from the received VES measurementsForVfScaling message
+        tcavesResponse.setClosedLoopAlarmStart(commonEventHeader.getStartEpochMicrosec());
+        // Concatenate name of this DCAE instance and name for this TCA instance, separated by dot
+        // TODO: Find out how to get this field
+        tcavesResponse.setClosedLoopEventClient("DCAE_INSTANCE_ID." + tcaAppName);
+
+        final AAI aai = new AAI();
+        tcavesResponse.setAai(aai);
+
+        // vLoadBalancer specific settings
+        if (isFunctionalRoleVLoadBalancer(functionalRole)) {
+            // Hard Coded - "VM"
+            tcavesResponse.setTargetType(AnalyticsConstants.LOAD_BALANCER_TCA_VES_RESPONSE_TARGET_TYPE);
+            // Hard Coded - "vserver.vserver-name"
+            tcavesResponse.setTarget(AnalyticsConstants.LOAD_BALANCER_TCA_VES_RESPONSE_TARGET);
+            aai.setGenericServerId(commonEventHeader.getReportingEntityName());
+        } else {
+            // Hard Coded - "VNF"
+            tcavesResponse.setTargetType(AnalyticsConstants.TCA_VES_RESPONSE_TARGET_TYPE);
+            // Hard Coded - "generic-vnf.vnf-id"
+            tcavesResponse.setTarget(AnalyticsConstants.TCA_VES_RESPONSE_TARGET);
+            // commonEventHeader.reportingEntityName from the received VES measurementsForVfScaling message (value for
+            // the data element used in A&AI)
+            aai.setGenericVNFId(commonEventHeader.getReportingEntityName());
+        }
+
+        // Hard Coded - "DCAE"
+        tcavesResponse.setFrom(AnalyticsConstants.TCA_VES_RESPONSE_FROM);
+        // policyScope included in the DCAE configuration Policy
+        tcavesResponse.setPolicyScope(metricsPerFunctionalRole.getPolicyScope());
+        // policyName included in the DCAE configuration Policy
+        tcavesResponse.setPolicyName(metricsPerFunctionalRole.getPolicyName());
+        // policyVersion included in the DCAE configuration Policy
+        tcavesResponse.setPolicyVersion(metricsPerFunctionalRole.getPolicyVersion());
+        // Hard Coded - "ONSET"
+        tcavesResponse.setClosedLoopEventStatus(AnalyticsConstants.TCA_VES_RESPONSE_CLOSED_LOOP_EVENT_STATUS);
+
+        return tcavesResponse;
+    }
+
+    /**
+     * Determines if Functional Role is vLoadBalancer
+     *
+     * @param functionalRole functional Role to check
+     *
+     * @return return true if functional role is for vLoadBalancer
+     */
+    private static boolean isFunctionalRoleVLoadBalancer(final String functionalRole) {
+        return functionalRole.equals(AnalyticsConstants.LOAD_BALANCER_FUNCTIONAL_ROLE);
+    }
+
+
+    /**
+     * Extract Domain and functional Role from processor context if present
+     *
+     * @param processorContext processor context
+     * @return Tuple of domain and functional role
+     */
+    public static Pair<String, String> getDomainAndFunctionalRole(@Nullable final TCACEFProcessorContext
+                                                                          processorContext) {
+
+        String domain = null;
+        String functionalRole = null;
+
+        if (processorContext != null &&
+                processorContext.getCEFEventListener() != null &&
+                processorContext.getCEFEventListener().getEvent() != null &&
+                processorContext.getCEFEventListener().getEvent().getCommonEventHeader() != null) {
+            final CommonEventHeader commonEventHeader = processorContext.getCEFEventListener().getEvent()
+                    .getCommonEventHeader();
+
+            if (commonEventHeader.getDomain() != null) {
+                domain = commonEventHeader.getDomain();
+            }
+
+            if (commonEventHeader.getFunctionalRole() != null) {
+                functionalRole = commonEventHeader.getFunctionalRole();
+            }
+
+        }
+
+        return new ImmutablePair<>(domain, functionalRole);
+
+    }
+
+    /**
+     * Creates {@link TCAPolicy} Metrics per Functional Role list
+     *
+     * @param functionalRolesMap Map containing functional Roles as key and corresponding values
+     *
+     * @return List of {@link MetricsPerFunctionalRole}
+     */
+    public static List<MetricsPerFunctionalRole> createTCAPolicyMetricsPerFunctionalRoleList(
+            final Map<String, Map<String, String>> functionalRolesMap) {
+
+        // create a new metrics per functional role list
+        final List<MetricsPerFunctionalRole> metricsPerFunctionalRoles = new LinkedList<>();
+
+        for (Map.Entry<String, Map<String, String>> functionalRolesEntry : functionalRolesMap.entrySet()) {
+
+            // create new metrics per functional role instance
+            final MetricsPerFunctionalRole newMetricsPerFunctionalRole =
+                    createNewMetricsPerFunctionalRole(functionalRolesEntry);
+            metricsPerFunctionalRoles.add(newMetricsPerFunctionalRole);
+
+            // determine all threshold related values
+            final Map<String, String> thresholdsValuesMaps =
+                    filterMapByKeyNamePrefix(functionalRolesEntry.getValue(),
+                            AnalyticsConstants.TCA_POLICY_THRESHOLDS_PATH_POSTFIX);
+
+            // create a map of all threshold values
+            final Map<String, Map<String, String>> thresholdsMap =
+                    extractSubTree(thresholdsValuesMaps, 1, 2,
+                            AnalyticsConstants.TCA_POLICY_DELIMITER);
+
+            // add thresholds to nmetrics per functional roles threshold list
+            for (Map<String, String> thresholdMap : thresholdsMap.values()) {
+                newMetricsPerFunctionalRole.getThresholds().add(createNewThreshold(thresholdMap));
+            }
+
+        }
+
+        return metricsPerFunctionalRoles;
+    }
+
+    /**
+     * Creates new instance of TCA Policy {@link Threshold} with values extracted from thresholdMap
+     *
+     * @param thresholdMap threshold map with threshold values
+     *
+     * @return new instance of TCA Policy Threshold
+     */
+    public static Threshold createNewThreshold(final Map<String, String> thresholdMap) {
+        final Threshold threshold = new Threshold();
+        threshold.setClosedLoopControlName(thresholdMap.get("policy.closedLoopControlName"));
+        threshold.setVersion(thresholdMap.get("policy.version"));
+        threshold.setFieldPath(thresholdMap.get("policy.fieldPath"));
+        threshold.setDirection(Direction.valueOf(thresholdMap.get("policy.direction")));
+        threshold.setSeverity(EventSeverity.valueOf(thresholdMap.get("policy.severity")));
+        threshold.setThresholdValue(Long.valueOf(thresholdMap.get("policy.thresholdValue")));
+        return threshold;
+    }
+
+    /**
+     * Create new {@link MetricsPerFunctionalRole} instance with policy Name, policy Version and policy Scope
+     * extracted from given functionalRolesEntry
+     *
+     * @param functionalRolesEntry Functional Role Entry
+     *
+     * @return new instance of MetricsPerFunctionalRole
+     */
+    public static MetricsPerFunctionalRole createNewMetricsPerFunctionalRole(
+            final Map.Entry<String, Map<String, String>> functionalRolesEntry) {
+        // determine functional Role
+        final String functionalRole = functionalRolesEntry.getKey();
+        // determine functional Role thresholds
+        final Map<String, String> metricsPerFunctionalRoleThresholdsMap = functionalRolesEntry.getValue();
+        final MetricsPerFunctionalRole metricsPerFunctionalRole = new MetricsPerFunctionalRole();
+        final List<Threshold> thresholds = new LinkedList<>();
+        metricsPerFunctionalRole.setThresholds(thresholds);
+        metricsPerFunctionalRole.setFunctionalRole(functionalRole);
+        // bind policyName, policyVersion and policyScope
+        metricsPerFunctionalRole.setPolicyName(metricsPerFunctionalRoleThresholdsMap.get("policyName"));
+        metricsPerFunctionalRole.setPolicyVersion(metricsPerFunctionalRoleThresholdsMap.get("policyVersion"));
+        metricsPerFunctionalRole.setPolicyScope(metricsPerFunctionalRoleThresholdsMap.get("policyScope"));
+        return metricsPerFunctionalRole;
+    }
+
+    /**
+     * Converts a flattened key/value map which has keys delimited by a given delimiter.
+     * The start Index and end index extract the sub-key value and returns a new map containing
+     * sub-keys and values.
+     *
+     * @param actualMap actual Map
+     * @param startIndex start index
+     * @param endIndex end index
+     * @param delimiter delimiter
+     *
+     * @return Map with new sub tree map
+     */
+    public static Map<String, Map<String, String>> extractSubTree(
+            final Map<String, String> actualMap, int startIndex, int endIndex, String delimiter) {
+
+        final SortedMap<String, Map<String, String>> subTreeMap = new TreeMap<>();
+
+        // iterate over actual map entries
+        for (Map.Entry<String, String> actualMapEntry : actualMap.entrySet()) {
+            final String actualMapKey = actualMapEntry.getKey();
+            final String actualMapValue = actualMapEntry.getValue();
+
+            // determine delimiter start and end index
+            final int keyStartIndex = StringUtils.ordinalIndexOf(actualMapKey, delimiter, startIndex);
+            final int keyEndIndex = StringUtils.ordinalIndexOf(actualMapKey, delimiter, endIndex);
+            final int keyLength = actualMapKey.length();
+
+            // extract sub-tree map
+            if (keyStartIndex != -1 && keyEndIndex != -1 && keyEndIndex > keyStartIndex && keyLength > keyEndIndex) {
+                final String thresholdKey = actualMapKey.substring(keyStartIndex + 1, keyEndIndex);
+                final Map<String, String> existingThresholdMap = subTreeMap.get(thresholdKey);
+                final String subMapKey = actualMapKey.substring(keyEndIndex + 1, keyLength);
+                if (existingThresholdMap == null) {
+                    Map<String, String> newThresholdMap = new LinkedHashMap<>();
+                    newThresholdMap.put(subMapKey, actualMapValue);
+                    subTreeMap.put(thresholdKey, newThresholdMap);
+                } else {
+                    existingThresholdMap.put(subMapKey, actualMapValue);
+                }
+
+            }
+        }
+
+        return subTreeMap;
+
+    }
+
+
+    /**
+     * Provides a view of underlying map that filters out entries with keys starting with give prefix
+     *
+     * @param actualMap Target map that needs to be filtered
+     * @param keyNamePrefix key prefix
+     *
+     * @return a view of actual map which only show entries which have give prefix
+     */
+    public static Map<String, String> filterMapByKeyNamePrefix(final Map<String, String> actualMap,
+                                                               final String keyNamePrefix) {
+        return Maps.filterKeys(actualMap,
+                new Predicate<String>() {
+                    @Override
+                    public boolean apply(@Nullable String key) {
+                        return key != null && key.startsWith(keyNamePrefix);
+                    }
+                });
+    }
+
+
+    /**
+     * Creates Quartz Scheduler
+     *
+     * @param pollingIntervalMS polling interval
+     * @param stdSchedulerFactory Quartz standard schedule factory instance
+     * @param quartzPublisherPropertiesFileName quartz properties file name
+     * @param jobDataMap job Data map
+     * @param quartzJobClass Quartz Job Class
+     * @param quartzJobName Quartz Job Name
+     * @param quartzTriggerName Quartz Trigger name
+     *
+     * @param <T> An implementation of Quartz {@link Job} interface
+     * @return Configured Quartz Scheduler
+     *
+     * @throws SchedulerException expection if unable to create to Quartz Scheduler
+     */
+    public static <T extends Job> Scheduler createQuartzScheduler(final Integer pollingIntervalMS,
+            final StdSchedulerFactory stdSchedulerFactory, final String quartzPublisherPropertiesFileName,
+            final JobDataMap jobDataMap, final Class<T> quartzJobClass, final String quartzJobName,
+            final String quartzTriggerName) throws SchedulerException {
+
+        // Initialize a new Quartz Standard scheduler
+        LOG.debug("Configuring quartz scheduler for Quartz Job: {} with properties file: {}",
+                quartzJobClass.getSimpleName(), quartzPublisherPropertiesFileName);
+        final Properties quartzProperties = AnalyticsModelIOUtils.loadPropertiesFile(
+                quartzPublisherPropertiesFileName, new Properties());
+        stdSchedulerFactory.initialize(quartzProperties);
+        final Scheduler scheduler = stdSchedulerFactory.getScheduler();
+
+        // Create a new job detail
+        final JobDetail jobDetail = JobBuilder.newJob(quartzJobClass).withIdentity(quartzJobName,
+                AnalyticsConstants.TCA_QUARTZ_GROUP_NAME).usingJobData(jobDataMap).build();
+
+        // Create a new scheduling builder
+        final SimpleScheduleBuilder simpleScheduleBuilder = SimpleScheduleBuilder.simpleSchedule()
+                .withIntervalInMilliseconds(pollingIntervalMS) // job will use custom polling schedule
+                .repeatForever(); // repeats while worker is running
+
+        // Create a trigger for the TCA Publisher Job
+        final SimpleTrigger simpleTrigger = TriggerBuilder.newTrigger()
+                .withIdentity(quartzTriggerName, AnalyticsConstants.TCA_QUARTZ_GROUP_NAME)
+                .startNow() // job starts right away
+                .withSchedule(simpleScheduleBuilder).build();
+
+        scheduler.scheduleJob(jobDetail, simpleTrigger);
+        LOG.info("Scheduler Initialized successfully for JobName: {}", quartzJobClass.getSimpleName());
+        return scheduler;
+    }
+
+
+
+}