NCMP : forward bulk response messages to client topic

Issue-ID: CPS-1557
Signed-off-by: raviteja.karumuri <raviteja.karumuri@est.tech>
Change-Id: I0ea040e98987f992f46105afea0a171c4031d64f

4 files changed, 264 insertions, 0 deletions

diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/BatchRecordFilterStrategy.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/BatchRecordFilterStrategy.java
new file mode 100644
index 000000000..088e96564
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/BatchRecordFilterStrategy.java
@@ -0,0 +1,50 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 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.ncmp.api.impl.async;
+
+import org.apache.commons.lang3.SerializationUtils;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.kafka.listener.adapter.RecordFilterStrategy;
+
+/**
+ * Batch Record filter strategy, which helps to filter the consumer records.
+ *
+ */
+@Configuration
+public class BatchRecordFilterStrategy {
+
+    /**
+     *  Filtering the consumer records based on the eventType header, It
+     *  returns boolean, true means filter the consumer record and false
+     *  means not filter the consumer record.
+     * @return boolean value.
+     */
+    @Bean
+    public RecordFilterStrategy<Object, Object> filterBatchDataResponseEvent() {
+        return consumedRecord -> {
+            final String headerValue = SerializationUtils
+                    .deserialize(consumedRecord.headers().lastHeader("eventType").value());
+            return !(headerValue != null
+                    && headerValue.startsWith("org.onap.cps.ncmp.events.async.BatchDataResponseEvent"));
+        };
+    }
+}
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/NcmpAsyncBatchEventConsumer.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/NcmpAsyncBatchEventConsumer.java
new file mode 100644
index 000000000..2a332d003
--- /dev/null
+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/NcmpAsyncBatchEventConsumer.java
@@ -0,0 +1,64 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 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.ncmp.api.impl.async;
+
+import lombok.RequiredArgsConstructor;
+import lombok.extern.slf4j.Slf4j;
+import org.apache.commons.lang3.SerializationUtils;
+import org.apache.kafka.clients.consumer.ConsumerRecord;
+import org.onap.cps.ncmp.api.impl.events.EventsPublisher;
+import org.onap.cps.ncmp.events.async.BatchDataResponseEventV1;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
+import org.springframework.kafka.annotation.KafkaListener;
+import org.springframework.stereotype.Component;
+
+/**
+ * Listener for cps-ncmp async batch events.
+ */
+@Component
+@Slf4j
+@RequiredArgsConstructor
+@ConditionalOnProperty(name = "notification.enabled", havingValue = "true", matchIfMissing = true)
+public class NcmpAsyncBatchEventConsumer {
+
+    private final EventsPublisher<BatchDataResponseEventV1> eventsPublisher;
+
+    /**
+     * Consume the BatchDataResponseEvent published by producer to topic 'async-m2m.topic'
+     * and publish the same to the client specified topic.
+     *
+     * @param batchEventConsumerRecord consuming event as a ConsumerRecord.
+     */
+    @KafkaListener(
+            topics = "${app.ncmp.async-m2m.topic}",
+            filter = "filterBatchDataResponseEvent",
+            groupId = "ncmp-batch-event-group",
+            properties = {"spring.json.value.default.type=org.onap.cps.ncmp.events.async.BatchDataResponseEventV1"})
+    public void consumeAndPublish(final ConsumerRecord<String, BatchDataResponseEventV1> batchEventConsumerRecord) {
+        log.info("Consuming event payload {} ...", batchEventConsumerRecord.value());
+        final String eventTarget = SerializationUtils
+                .deserialize(batchEventConsumerRecord.headers().lastHeader("eventTarget").value());
+        final String eventId = SerializationUtils
+                .deserialize(batchEventConsumerRecord.headers().lastHeader("eventId").value());
+        eventsPublisher.publishEvent(eventTarget, eventId, batchEventConsumerRecord.headers(),
+                batchEventConsumerRecord.value());
+    }
+}
diff --git a/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/async/NcmpAsyncBatchEventConsumerSpec.groovy b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/async/NcmpAsyncBatchEventConsumerSpec.groovy
new file mode 100644
index 000000000..65c43a011
--- /dev/null
+++ b/cps-ncmp-service/src/test/groovy/org/onap/cps/ncmp/api/impl/async/NcmpAsyncBatchEventConsumerSpec.groovy
@@ -0,0 +1,104 @@
+/*
+ * ============LICENSE_START=======================================================
+ * Copyright (C) 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.ncmp.api.impl.async
+
+import com.fasterxml.jackson.databind.ObjectMapper
+import org.apache.commons.lang3.SerializationUtils
+import org.apache.kafka.clients.consumer.ConsumerRecord
+import org.apache.kafka.clients.consumer.KafkaConsumer
+import org.apache.kafka.common.header.internals.RecordHeader
+import org.onap.cps.ncmp.api.impl.events.EventsPublisher
+import org.onap.cps.ncmp.api.kafka.MessagingBaseSpec
+import org.onap.cps.ncmp.events.async.BatchDataResponseEventV1
+import org.onap.cps.ncmp.utils.TestUtils
+import org.onap.cps.utils.JsonObjectMapper
+import org.spockframework.spring.SpringBean
+import org.springframework.beans.factory.annotation.Autowired
+import org.springframework.boot.test.context.SpringBootTest
+import org.springframework.kafka.listener.adapter.RecordFilterStrategy
+import org.springframework.test.annotation.DirtiesContext
+import org.testcontainers.spock.Testcontainers
+
+import java.time.Duration
+
+@SpringBootTest(classes = [EventsPublisher, NcmpAsyncBatchEventConsumer, BatchRecordFilterStrategy,JsonObjectMapper,
+                ObjectMapper])
+@Testcontainers
+@DirtiesContext
+class NcmpAsyncBatchEventConsumerSpec extends MessagingBaseSpec {
+
+    @SpringBean
+    EventsPublisher asyncBatchEventPublisher = new EventsPublisher<BatchDataResponseEventV1>(kafkaTemplate)
+
+    @SpringBean
+    NcmpAsyncBatchEventConsumer asyncBatchEventConsumer = new NcmpAsyncBatchEventConsumer(asyncBatchEventPublisher)
+
+    @Autowired
+    JsonObjectMapper jsonObjectMapper
+
+    @Autowired
+    RecordFilterStrategy<Object, Object> recordFilterStrategy
+
+    def kafkaConsumer = new KafkaConsumer<>(consumerConfigProperties('test'))
+    def static clientTopic = 'client-topic'
+    def static batchEventType = 'org.onap.cps.ncmp.events.async.BatchDataResponseEventV1'
+
+    def 'Consume and publish event to client specified topic'() {
+        given: 'consumer subscribing to client topic'
+            kafkaConsumer.subscribe([clientTopic])
+        and: 'consumer record for batch event'
+            def consumerRecordIn = createConsumerRecord(batchEventType)
+        when: 'the batch event is consumed and published to client specified topic'
+            asyncBatchEventConsumer.consumeAndPublish(consumerRecordIn)
+        and: 'the client specified topic is polled'
+            def consumerRecordOut = kafkaConsumer.poll(Duration.ofMillis(1500))[0]
+        then: 'verifying consumed event operationID is same as published event operationID'
+            def operationIdIn = consumerRecordIn.value.event.batchResponses[0].operationId
+            def operationIdOut = jsonObjectMapper.convertJsonString((String)consumerRecordOut.value(), BatchDataResponseEventV1.class).event.batchResponses[0].operationId
+            assert operationIdIn == operationIdOut
+    }
+
+    def 'Filter an event with type #eventType'() {
+        given: 'consumer record for event with type #eventType'
+            def consumerRecord = createConsumerRecord(eventType)
+        when: 'while consuming the topic ncmp-async-m2m it executes the filter strategy'
+            def result = recordFilterStrategy.filter(consumerRecord)
+        then: 'the event is #description'
+            assert result == expectedResult
+        where: 'filter the event based on the eventType #eventType'
+            description                                     | eventType       || expectedResult
+            'not filtered(the consumer will see the event)' | batchEventType  || false
+            'filtered(the consumer will not see the event)' | 'wrongType'     || true
+    }
+
+    def createConsumerRecord(eventTypeAsString) {
+        def jsonData = TestUtils.getResourceFileContent('batchDataEvent.json')
+        def testEventSent = jsonObjectMapper.convertJsonString(jsonData, BatchDataResponseEventV1.class)
+        def eventTarget = SerializationUtils.serialize(clientTopic)
+        def eventType = SerializationUtils.serialize(eventTypeAsString)
+        def eventId = SerializationUtils.serialize('12345')
+        def consumerRecord = new ConsumerRecord<String, Object>(clientTopic, 1, 1L, '123', testEventSent)
+        consumerRecord.headers().add(new RecordHeader('eventId', eventId))
+        consumerRecord.headers().add(new RecordHeader('eventTarget', eventTarget))
+        consumerRecord.headers().add(new RecordHeader('eventType', eventType))
+        return consumerRecord
+    }
+}
diff --git a/cps-ncmp-service/src/test/resources/batchDataEvent.json b/cps-ncmp-service/src/test/resources/batchDataEvent.json
new file mode 100644
index 000000000..49eb273f5
--- /dev/null
+++ b/cps-ncmp-service/src/test/resources/batchDataEvent.json
@@ -0,0 +1,46 @@
+{
+  "event":{
+    "batch-responses":[
+      {
+        "operationId":"1",
+        "ids":[
+          "123",
+          "124"
+        ],
+        "status-code":1,
+        "status-message":"Batch operation success on the above cmhandle ids ",
+        "data":{
+          "ietf-netconf-monitoring:netconf-state":{
+            "schemas":{
+              "schema":[
+                {
+                  "identifier":"ietf-tls-server",
+                  "version":"2016-11-02",
+                  "format":"ietf-netconf-monitoring:yang",
+                  "namespace":"urn:ietf:params:xml:ns:yang:ietf-tls-server",
+                  "location":[
+                    "NETCONF"
+                  ]
+                }
+              ]
+            }
+          }
+        }
+      },
+      {
+        "operationId":"101",
+        "ids":[
+          "456",
+          "457"
+        ],
+        "status-code":101,
+        "status-message":"cmHandle(s) do not exist",
+        "data":{
+          "error":{
+            "message":"cmHandle(s) do not exist"
+          }
+        }
+      }
+    ]
+  }
+}
\ No newline at end of file