1 files changed, 55 insertions, 0 deletions
diff --git a/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/DataOperationRecordFilterStrategy.java b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/DataOperationRecordFilterStrategy.java
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index 000000000..9e2b66a2c
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+++ b/cps-ncmp-service/src/main/java/org/onap/cps/ncmp/api/impl/async/DataOperationRecordFilterStrategy.java
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+/*
+ * ============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.apache.kafka.common.header.Header;
+import org.onap.cps.ncmp.events.async1_0_0.DataOperationEvent;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.kafka.listener.adapter.RecordFilterStrategy;
+
+/**
+ * Data operation record filter strategy, which helps to filter the consumer records.
+ *
+ */
+@Configuration
+public class DataOperationRecordFilterStrategy {
+
+    /**
+     *  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<String, DataOperationEvent> includeDataOperationEventsOnly() {
+        return consumedRecord -> {
+            final Header eventTypeHeader = consumedRecord.headers().lastHeader("eventType");
+            if (eventTypeHeader == null) {
+                return false;
+            }
+            final String eventTypeHeaderValue = SerializationUtils.deserialize(eventTypeHeader.value());
+            return !(eventTypeHeaderValue != null
+                    && eventTypeHeaderValue.contains("DataOperationEvent"));
+        };
+    }
+}