Remove Notification code for updated events

- removed existing code for sending notifications to topic
  cps.dataupdated events formerly used by cps-temporal
- corresponding testware removed or updated
- unnecessary to fetch anchor details for delete and replace operation
  removed which might gain minor performance boost
- yaml configurations , documentation removal and update
- Added missing test for AsyncConfig to comply with coverage check

Issue-ID: CPS-2005
Change-Id: I1848f7f229cb713fe8c0302ea50328e7451652ee
Signed-off-by: mpriyank <priyank.maheshwari@est.tech>

8 files changed, 0 insertions, 500 deletions

diff --git a/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java b/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
index e74e0ad24..6672d6883 100755
--- a/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
+++ b/cps-service/src/main/java/org/onap/cps/api/impl/CpsDataServiceImpl.java
@@ -24,10 +24,6 @@
 
 package org.onap.cps.api.impl;
 
-import static org.onap.cps.notification.Operation.CREATE;
-import static org.onap.cps.notification.Operation.DELETE;
-import static org.onap.cps.notification.Operation.UPDATE;
-
 import io.micrometer.core.annotation.Timed;
 import java.io.Serializable;
 import java.time.OffsetDateTime;
@@ -43,8 +39,6 @@ import org.onap.cps.api.CpsAdminService;
 import org.onap.cps.api.CpsDataService;
 import org.onap.cps.api.CpsDeltaService;
 import org.onap.cps.cpspath.parser.CpsPathUtil;
-import org.onap.cps.notification.NotificationService;
-import org.onap.cps.notification.Operation;
 import org.onap.cps.spi.CpsDataPersistenceService;
 import org.onap.cps.spi.FetchDescendantsOption;
 import org.onap.cps.spi.exceptions.DataValidationException;
@@ -70,7 +64,6 @@ public class CpsDataServiceImpl implements CpsDataService {
     private final CpsDataPersistenceService cpsDataPersistenceService;
     private final CpsAdminService cpsAdminService;
     private final YangTextSchemaSourceSetCache yangTextSchemaSourceSetCache;
-    private final NotificationService notificationService;
     private final CpsValidator cpsValidator;
     private final TimedYangParser timedYangParser;
     private final CpsDeltaService cpsDeltaService;
@@ -90,7 +83,6 @@ public class CpsDataServiceImpl implements CpsDataService {
         final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
         final Collection<DataNode> dataNodes = buildDataNodes(anchor, ROOT_NODE_XPATH, nodeData, contentType);
         cpsDataPersistenceService.storeDataNodes(dataspaceName, anchorName, dataNodes);
-        processDataUpdatedEventAsync(anchor, ROOT_NODE_XPATH, CREATE, observedTimestamp);
     }
 
     @Override
@@ -109,7 +101,6 @@ public class CpsDataServiceImpl implements CpsDataService {
         final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
         final Collection<DataNode> dataNodes = buildDataNodes(anchor, parentNodeXpath, nodeData, contentType);
         cpsDataPersistenceService.addChildDataNodes(dataspaceName, anchorName, parentNodeXpath, dataNodes);
-        processDataUpdatedEventAsync(anchor, parentNodeXpath, CREATE, observedTimestamp);
     }
 
     @Override
@@ -127,7 +118,6 @@ public class CpsDataServiceImpl implements CpsDataService {
             cpsDataPersistenceService.addListElements(dataspaceName, anchorName, parentNodeXpath,
                                                       listElementDataNodeCollection);
         }
-        processDataUpdatedEventAsync(anchor, parentNodeXpath, UPDATE, observedTimestamp);
     }
 
     @Override
@@ -141,7 +131,6 @@ public class CpsDataServiceImpl implements CpsDataService {
                 buildDataNodes(anchor, parentNodeXpath, jsonDataList, ContentType.JSON);
         cpsDataPersistenceService.addMultipleLists(dataspaceName, anchorName, parentNodeXpath,
                 listElementDataNodeCollections);
-        processDataUpdatedEventAsync(anchor, parentNodeXpath, UPDATE, observedTimestamp);
     }
 
     @Override
@@ -177,7 +166,6 @@ public class CpsDataServiceImpl implements CpsDataService {
         final Map<String, Map<String, Serializable>> xpathToUpdatedLeaves = dataNodesInPatch.stream()
                 .collect(Collectors.toMap(DataNode::getXpath, DataNode::getLeaves));
         cpsDataPersistenceService.batchUpdateDataLeaves(dataspaceName, anchorName, xpathToUpdatedLeaves);
-        processDataUpdatedEventAsync(anchor, parentNodeXpath, UPDATE, observedTimestamp);
     }
 
     @Override
@@ -194,7 +182,6 @@ public class CpsDataServiceImpl implements CpsDataService {
         for (final DataNode dataNodeUpdate : dataNodeUpdates) {
             processDataNodeUpdate(anchor, dataNodeUpdate);
         }
-        processDataUpdatedEventAsync(anchor, parentNodeXpath, UPDATE, observedTimestamp);
     }
 
     @Override
@@ -244,7 +231,6 @@ public class CpsDataServiceImpl implements CpsDataService {
         final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
         final Collection<DataNode> dataNodes = buildDataNodes(anchor, parentNodeXpath, jsonData, ContentType.JSON);
         cpsDataPersistenceService.updateDataNodesAndDescendants(dataspaceName, anchorName, dataNodes);
-        processDataUpdatedEventAsync(anchor, parentNodeXpath, UPDATE, observedTimestamp);
     }
 
     @Override
@@ -257,8 +243,6 @@ public class CpsDataServiceImpl implements CpsDataService {
         final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
         final Collection<DataNode> dataNodes = buildDataNodes(anchor, nodesJsonData);
         cpsDataPersistenceService.updateDataNodesAndDescendants(dataspaceName, anchorName, dataNodes);
-        nodesJsonData.keySet().forEach(nodeXpath ->
-            processDataUpdatedEventAsync(anchor, nodeXpath, UPDATE, observedTimestamp));
     }
 
     @Override
@@ -279,9 +263,7 @@ public class CpsDataServiceImpl implements CpsDataService {
     public void replaceListContent(final String dataspaceName, final String anchorName, final String parentNodeXpath,
             final Collection<DataNode> dataNodes, final OffsetDateTime observedTimestamp) {
         cpsValidator.validateNameCharacters(dataspaceName, anchorName);
-        final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
         cpsDataPersistenceService.replaceListContent(dataspaceName, anchorName, parentNodeXpath, dataNodes);
-        processDataUpdatedEventAsync(anchor, parentNodeXpath, UPDATE, observedTimestamp);
     }
 
     @Override
@@ -290,9 +272,7 @@ public class CpsDataServiceImpl implements CpsDataService {
     public void deleteDataNode(final String dataspaceName, final String anchorName, final String dataNodeXpath,
                                final OffsetDateTime observedTimestamp) {
         cpsValidator.validateNameCharacters(dataspaceName, anchorName);
-        final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
         cpsDataPersistenceService.deleteDataNode(dataspaceName, anchorName, dataNodeXpath);
-        processDataUpdatedEventAsync(anchor, dataNodeXpath, DELETE, observedTimestamp);
     }
 
     @Override
@@ -302,9 +282,6 @@ public class CpsDataServiceImpl implements CpsDataService {
                                 final Collection<String> dataNodeXpaths, final OffsetDateTime observedTimestamp) {
         cpsValidator.validateNameCharacters(dataspaceName, anchorName);
         cpsDataPersistenceService.deleteDataNodes(dataspaceName, anchorName, dataNodeXpaths);
-        final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
-        dataNodeXpaths.forEach(dataNodeXpath ->
-            processDataUpdatedEventAsync(anchor, dataNodeXpath, DELETE, observedTimestamp));
     }
 
     @Override
@@ -313,8 +290,6 @@ public class CpsDataServiceImpl implements CpsDataService {
     public void deleteDataNodes(final String dataspaceName, final String anchorName,
                                 final OffsetDateTime observedTimestamp) {
         cpsValidator.validateNameCharacters(dataspaceName, anchorName);
-        final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
-        processDataUpdatedEventAsync(anchor, ROOT_NODE_XPATH, DELETE, observedTimestamp);
         cpsDataPersistenceService.deleteDataNodes(dataspaceName, anchorName);
     }
 
@@ -325,9 +300,6 @@ public class CpsDataServiceImpl implements CpsDataService {
                                 final OffsetDateTime observedTimestamp) {
         cpsValidator.validateNameCharacters(dataspaceName);
         cpsValidator.validateNameCharacters(anchorNames);
-        for (final Anchor anchor : cpsAdminService.getAnchors(dataspaceName, anchorNames)) {
-            processDataUpdatedEventAsync(anchor, ROOT_NODE_XPATH, DELETE, observedTimestamp);
-        }
         cpsDataPersistenceService.deleteDataNodes(dataspaceName, anchorNames);
     }
 
@@ -337,9 +309,7 @@ public class CpsDataServiceImpl implements CpsDataService {
     public void deleteListOrListElement(final String dataspaceName, final String anchorName, final String listNodeXpath,
         final OffsetDateTime observedTimestamp) {
         cpsValidator.validateNameCharacters(dataspaceName, anchorName);
-        final Anchor anchor = cpsAdminService.getAnchor(dataspaceName, anchorName);
         cpsDataPersistenceService.deleteListDataNode(dataspaceName, anchorName, listNodeXpath);
-        processDataUpdatedEventAsync(anchor, listNodeXpath, DELETE, observedTimestamp);
     }
 
     private Collection<DataNode> buildDataNodes(final Anchor anchor, final Map<String, String> nodesJsonData) {
@@ -385,16 +355,6 @@ public class CpsDataServiceImpl implements CpsDataService {
             .collect(Collectors.toList());
     }
 
-    private void processDataUpdatedEventAsync(final Anchor anchor, final String xpath,
-                                              final Operation operation, final OffsetDateTime observedTimestamp) {
-        try {
-            notificationService.processDataUpdatedEvent(anchor, xpath, operation, observedTimestamp);
-        } catch (final Exception exception) {
-            //If async message can't be queued for notification service, the initial request should not fail.
-            log.error("Failed to send message to notification service", exception);
-        }
-    }
-
     private SchemaContext getSchemaContext(final Anchor anchor) {
         return yangTextSchemaSourceSetCache
             .get(anchor.getDataspaceName(), anchor.getSchemaSetName()).getSchemaContext();
diff --git a/cps-service/src/main/java/org/onap/cps/notification/CpsDataUpdatedEventFactory.java b/cps-service/src/main/java/org/onap/cps/notification/CpsDataUpdatedEventFactory.java
deleted file mode 100644
index 696fd60f8..000000000
--- a/cps-service/src/main/java/org/onap/cps/notification/CpsDataUpdatedEventFactory.java
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * Copyright (c) 2021-2022 Bell Canada.
- * Modifications Copyright (c) 2022-2023 Nordix Foundation
- * Modifications Copyright (C) 2023 TechMahindra Ltd.
- * ================================================================================
- * 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.
- *
- * SPDX-License-Identifier: Apache-2.0
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.notification;
-
-import java.net.URI;
-import java.net.URISyntaxException;
-import java.time.OffsetDateTime;
-import java.time.format.DateTimeFormatter;
-import java.util.UUID;
-import lombok.AllArgsConstructor;
-import lombok.SneakyThrows;
-import org.onap.cps.api.CpsDataService;
-import org.onap.cps.event.model.Content;
-import org.onap.cps.event.model.CpsDataUpdatedEvent;
-import org.onap.cps.event.model.Data;
-import org.onap.cps.spi.FetchDescendantsOption;
-import org.onap.cps.spi.model.Anchor;
-import org.onap.cps.spi.model.DataNode;
-import org.onap.cps.utils.DataMapUtils;
-import org.onap.cps.utils.PrefixResolver;
-import org.springframework.context.annotation.Lazy;
-import org.springframework.stereotype.Component;
-
-@Component
-@AllArgsConstructor(onConstructor = @__(@Lazy))
-public class CpsDataUpdatedEventFactory {
-
-    private static final DateTimeFormatter DATE_TIME_FORMATTER =
-        DateTimeFormatter.ofPattern("yyyy-MM-dd'T'HH:mm:ss.SSSZ");
-
-    @Lazy
-    private final CpsDataService cpsDataService;
-
-    @Lazy
-    private final PrefixResolver prefixResolver;
-
-    /**
-     * Generates CPS Data Updated event. If observedTimestamp is not provided, then current timestamp is used.
-     *
-     * @param anchor            anchor
-     * @param observedTimestamp observedTimestamp
-     * @param operation         operation
-     * @return CpsDataUpdatedEvent
-     */
-    public CpsDataUpdatedEvent createCpsDataUpdatedEvent(final Anchor anchor,
-        final OffsetDateTime observedTimestamp, final Operation operation) {
-        final var dataNode = (operation == Operation.DELETE) ? null :
-            cpsDataService.getDataNodes(anchor.getDataspaceName(), anchor.getName(),
-                "/", FetchDescendantsOption.INCLUDE_ALL_DESCENDANTS).iterator().next();
-        return toCpsDataUpdatedEvent(anchor, dataNode, observedTimestamp, operation);
-    }
-
-    @SneakyThrows(URISyntaxException.class)
-    private CpsDataUpdatedEvent toCpsDataUpdatedEvent(final Anchor anchor,
-                                                      final DataNode dataNode,
-                                                      final OffsetDateTime observedTimestamp,
-                                                      final Operation operation) {
-        final CpsDataUpdatedEvent cpsDataUpdatedEvent = new CpsDataUpdatedEvent();
-        cpsDataUpdatedEvent.withContent(createContent(anchor, dataNode, observedTimestamp, operation));
-        cpsDataUpdatedEvent.withId(UUID.randomUUID().toString());
-        cpsDataUpdatedEvent.withSchema(new URI("urn:cps:org.onap.cps:data-updated-event-schema:v1"));
-        cpsDataUpdatedEvent.withSource(new URI("urn:cps:org.onap.cps"));
-        cpsDataUpdatedEvent.withType("org.onap.cps.data-updated-event");
-        return cpsDataUpdatedEvent;
-    }
-
-    private Data createData(final DataNode dataNode, final String prefix) {
-        final Data data = new Data();
-        DataMapUtils.toDataMapWithIdentifier(dataNode, prefix).forEach(data::setAdditionalProperty);
-        return data;
-    }
-
-    private Content createContent(final Anchor anchor, final DataNode dataNode,
-        final OffsetDateTime observedTimestamp, final Operation operation) {
-        final var content = new Content();
-        content.withAnchorName(anchor.getName());
-        content.withDataspaceName(anchor.getDataspaceName());
-        content.withSchemaSetName(anchor.getSchemaSetName());
-        content.withOperation(Content.Operation.fromValue(operation.name()));
-        content.withObservedTimestamp(
-            DATE_TIME_FORMATTER.format(observedTimestamp == null ? OffsetDateTime.now() : observedTimestamp));
-        if (dataNode != null) {
-            final String prefix = prefixResolver.getPrefix(anchor, dataNode.getXpath());
-            content.withData(createData(dataNode, prefix));
-        }
-        return content;
-    }
-}
diff --git a/cps-service/src/main/java/org/onap/cps/notification/KafkaProducerListener.java b/cps-service/src/main/java/org/onap/cps/notification/KafkaProducerListener.java
deleted file mode 100644
index f4b68c069..000000000
--- a/cps-service/src/main/java/org/onap/cps/notification/KafkaProducerListener.java
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- *  Copyright (C) 2021 Bell Canada. 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.
- *
- *  SPDX-License-Identifier: Apache-2.0
- *  ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.notification;
-
-import lombok.extern.slf4j.Slf4j;
-import org.apache.kafka.clients.producer.ProducerRecord;
-import org.apache.kafka.clients.producer.RecordMetadata;
-import org.springframework.kafka.support.ProducerListener;
-import org.springframework.stereotype.Component;
-
-@Slf4j
-@Component
-public class KafkaProducerListener<K, V> implements ProducerListener<K, V> {
-
-    private NotificationErrorHandler notificationErrorHandler;
-
-    public KafkaProducerListener(final NotificationErrorHandler notificationErrorHandler) {
-        this.notificationErrorHandler = notificationErrorHandler;
-    }
-
-    @Override
-    public void onSuccess(final ProducerRecord<K, V> producerRecord, final RecordMetadata recordMetadata) {
-        log.debug("Message sent to event-bus topic :'{}' with body : {} ", producerRecord.topic(),
-            producerRecord.value());
-    }
-
-    @Override
-    public void onError(final ProducerRecord<K, V> producerRecord,
-            final RecordMetadata recordMetadata,
-            final Exception exception) {
-        notificationErrorHandler.onException("Failed to send message to message bus",
-            exception, producerRecord, recordMetadata);
-    }
-
-}
diff --git a/cps-service/src/main/java/org/onap/cps/notification/NotificationErrorHandler.java b/cps-service/src/main/java/org/onap/cps/notification/NotificationErrorHandler.java
deleted file mode 100644
index eef028d5f..000000000
--- a/cps-service/src/main/java/org/onap/cps/notification/NotificationErrorHandler.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- *  Copyright (C) 2021 Bell Canada. 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.
- *
- *  SPDX-License-Identifier: Apache-2.0
- *  ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.notification;
-
-import lombok.extern.slf4j.Slf4j;
-import org.springframework.stereotype.Component;
-
-@Component
-@Slf4j
-public class NotificationErrorHandler {
-
-    void onException(final Exception exception, final Object... context) {
-        onException("Failed to process", exception, context);
-    }
-
-    void onException(final String message, final Exception exception, final Object... context) {
-        log.error("{} \n Error cause: {} \n Error context: {}",
-            message,
-            exception.getCause() != null ? exception.getCause().toString() : exception.getMessage(),
-            context,
-            exception);
-    }
-}
diff --git a/cps-service/src/main/java/org/onap/cps/notification/NotificationProperties.java b/cps-service/src/main/java/org/onap/cps/notification/NotificationProperties.java
deleted file mode 100644
index b8a7144b3..000000000
--- a/cps-service/src/main/java/org/onap/cps/notification/NotificationProperties.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- *  Copyright (C) 2021 Bell Canada. 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.
- *
- *  SPDX-License-Identifier: Apache-2.0
- *  ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.notification;
-
-import jakarta.validation.constraints.NotNull;
-import java.util.Collections;
-import java.util.Map;
-import lombok.Data;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.stereotype.Component;
-import org.springframework.validation.annotation.Validated;
-
-@ConfigurationProperties(prefix = "notification.data-updated")
-@Component
-@Data
-@Validated
-public class NotificationProperties {
-
-    @NotNull
-    private String topic;
-    private Map<String, String> filters = Collections.emptyMap();
-
-    @Value("${notification.enabled:true}")
-    private boolean enabled;
-}
diff --git a/cps-service/src/main/java/org/onap/cps/notification/NotificationPublisher.java b/cps-service/src/main/java/org/onap/cps/notification/NotificationPublisher.java
deleted file mode 100644
index 2d8748824..000000000
--- a/cps-service/src/main/java/org/onap/cps/notification/NotificationPublisher.java
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- *  Copyright (c) 2021 Bell Canada.
- *  ================================================================================
- *  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.
- *
- *  SPDX-License-Identifier: Apache-2.0
- *  ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.notification;
-
-import lombok.extern.slf4j.Slf4j;
-import org.checkerframework.checker.nullness.qual.NonNull;
-import org.onap.cps.event.model.CpsDataUpdatedEvent;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.kafka.core.KafkaTemplate;
-import org.springframework.stereotype.Component;
-
-@Component
-@Slf4j
-public class NotificationPublisher {
-
-    private KafkaTemplate<String, CpsDataUpdatedEvent> kafkaTemplate;
-    private String topicName;
-
-    /**
-     * Create an instance of Notification Publisher.
-     *
-     * @param kafkaTemplate kafkaTemplate is send event using kafka
-     * @param topicName     topic, to which cpsDataUpdatedEvent is sent, is provided by setting
-     *                      'notification.data-updated.topic' in the application properties
-     */
-    @Autowired
-    public NotificationPublisher(
-        final KafkaTemplate<String, CpsDataUpdatedEvent> kafkaTemplate,
-        final @Value("${notification.data-updated.topic}") String topicName) {
-        this.kafkaTemplate = kafkaTemplate;
-        this.topicName = topicName;
-    }
-
-    /**
-     * Send event to Kafka with correct message key.
-     *
-     * @param cpsDataUpdatedEvent event to be sent to kafka
-     */
-    public void sendNotification(@NonNull final CpsDataUpdatedEvent cpsDataUpdatedEvent) {
-        final var messageKey = cpsDataUpdatedEvent.getContent().getDataspaceName() + ","
-            + cpsDataUpdatedEvent.getContent().getAnchorName();
-        log.debug("Data Updated event is being sent with messageKey: '{}' & body : {} ",
-            messageKey, cpsDataUpdatedEvent);
-        kafkaTemplate.send(topicName, messageKey, cpsDataUpdatedEvent);
-    }
-
-}
diff --git a/cps-service/src/main/java/org/onap/cps/notification/NotificationService.java b/cps-service/src/main/java/org/onap/cps/notification/NotificationService.java
deleted file mode 100644
index c29d04229..000000000
--- a/cps-service/src/main/java/org/onap/cps/notification/NotificationService.java
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- * Copyright (c) 2021-2022 Bell Canada.
- * Modifications Copyright (C) 2022-2023 Nordix Foundation
- * ================================================================================
- * 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.
- *
- * SPDX-License-Identifier: Apache-2.0
- * ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.notification;
-
-import jakarta.annotation.PostConstruct;
-import java.time.OffsetDateTime;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.List;
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.Future;
-import java.util.regex.Pattern;
-import java.util.stream.Collectors;
-import lombok.RequiredArgsConstructor;
-import lombok.extern.slf4j.Slf4j;
-import org.onap.cps.api.CpsAdminService;
-import org.onap.cps.spi.model.Anchor;
-import org.springframework.scheduling.annotation.Async;
-import org.springframework.stereotype.Service;
-
-@Service
-@Slf4j
-@RequiredArgsConstructor
-public class NotificationService {
-
-    private final NotificationProperties notificationProperties;
-    private final NotificationPublisher notificationPublisher;
-    private final CpsDataUpdatedEventFactory cpsDataUpdatedEventFactory;
-    private final NotificationErrorHandler notificationErrorHandler;
-    private final CpsAdminService cpsAdminService;
-    private List<Pattern> dataspacePatterns;
-
-    @PostConstruct
-    public void init() {
-        log.info("Notification Properties {}", notificationProperties);
-        this.dataspacePatterns = getDataspaceFilterPatterns(notificationProperties);
-    }
-
-    private List<Pattern> getDataspaceFilterPatterns(final NotificationProperties notificationProperties) {
-        if (notificationProperties.isEnabled()) {
-            return Arrays.stream(notificationProperties.getFilters()
-                .getOrDefault("enabled-dataspaces", "")
-                .split(","))
-                .map(filterPattern -> Pattern.compile(filterPattern, Pattern.CASE_INSENSITIVE))
-                .collect(Collectors.toList());
-        } else {
-            return Collections.emptyList();
-        }
-    }
-
-    /**
-     * Process Data Updated Event and publishes the notification.
-     *
-     * @param anchor            anchor
-     * @param xpath             xpath of changed data node
-     * @param operation         operation
-     * @param observedTimestamp observedTimestamp
-     * @return future
-     */
-    @Async("notificationExecutor")
-    public Future<Void> processDataUpdatedEvent(final Anchor anchor, final String xpath, final Operation operation,
-                                                final OffsetDateTime observedTimestamp) {
-
-        log.debug("process data updated event for anchor '{}'", anchor);
-        try {
-            if (shouldSendNotification(anchor.getDataspaceName())) {
-                final var cpsDataUpdatedEvent =
-                        cpsDataUpdatedEventFactory.createCpsDataUpdatedEvent(anchor,
-                                observedTimestamp, getRootNodeOperation(xpath, operation));
-                log.debug("data updated event to be published {}", cpsDataUpdatedEvent);
-                notificationPublisher.sendNotification(cpsDataUpdatedEvent);
-            }
-        } catch (final Exception exception) {
-            /* All the exceptions are handled to not to propagate it to caller.
-               CPS operation should not fail if sending event fails for any reason.
-             */
-            notificationErrorHandler.onException("Failed to process cps-data-updated-event.",
-                    exception, anchor, xpath, operation);
-        }
-        return CompletableFuture.completedFuture(null);
-    }
-
-    /*
-        Add more complex rules based on dataspace and anchor later
-     */
-    private boolean shouldSendNotification(final String dataspaceName) {
-
-        return notificationProperties.isEnabled()
-            && dataspacePatterns.stream()
-            .anyMatch(pattern -> pattern.matcher(dataspaceName).find());
-    }
-
-    private Operation getRootNodeOperation(final String xpath, final Operation operation) {
-        return isRootXpath(xpath) || isRootContainerNodeXpath(xpath) ? operation : Operation.UPDATE;
-    }
-
-    private static boolean isRootXpath(final String xpath) {
-        return "/".equals(xpath) || "".equals(xpath);
-    }
-
-    private static boolean isRootContainerNodeXpath(final String xpath) {
-        return 0 == xpath.lastIndexOf('/');
-    }
-
-}
diff --git a/cps-service/src/main/java/org/onap/cps/notification/Operation.java b/cps-service/src/main/java/org/onap/cps/notification/Operation.java
deleted file mode 100644
index 83e1ccf79..000000000
--- a/cps-service/src/main/java/org/onap/cps/notification/Operation.java
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * ============LICENSE_START=======================================================
- *  Copyright (c) 2022 Bell Canada.
- *  ================================================================================
- *  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.
- *
- *  SPDX-License-Identifier: Apache-2.0
- *  ============LICENSE_END=========================================================
- */
-
-package org.onap.cps.notification;
-
-public enum Operation {
-    CREATE,
-    UPDATE,
-    DELETE
-}