Intial Stub code for the Cluster features in Kafka Application.(patchset #4)
Stub Implementation of KafkaStorage Service.
Change-Id: Iad929a8f1b13149583c9526b41e8f1a3a829fa1e
diff --git a/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/api/KafkaEventStorageService.java b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/api/KafkaEventStorageService.java
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+++ b/apps/kafka-integration/api/src/main/java/org/onosproject/kafkaintegration/api/KafkaEventStorageService.java
@@ -0,0 +1,40 @@
+/**
+ * Copyright 2016 Open Networking Laboratory
+ * 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.
+ */
+package org.onosproject.kafkaintegration.api;
+
+import org.onosproject.kafkaintegration.api.dto.OnosEvent;
+
+/**
+ * APIs to insert and delete into a local store. This store is used to keep
+ * track of events that are being published.
+ */
+public interface KafkaEventStorageService {
+
+ /**
+ * Inserts the Generated event into the local cache.
+ *
+ * @param e the ONOS Event
+ * @return true if the insertion was successful
+ */
+ boolean insertCacheEntry(OnosEvent e);
+
+ /**
+ * Updates the counter with the most recently published event's sequence
+ * number.
+ *
+ * @param sequenceNumber the updated value of sequence number.
+ */
+ void updateLastPublishedEntry(Long sequenceNumber);
+}