samza-kv-inmemory/src/main/java/org/apache/samza/storage/kv/inmemory/InMemoryKeyValueStorageEngineFactory.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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
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package org.apache.samza.storage.kv.inmemory;

import java.io.File;
import org.apache.samza.context.ContainerContext;
import org.apache.samza.context.JobContext;
import org.apache.samza.metrics.MetricsRegistry;
import org.apache.samza.storage.kv.BaseKeyValueStorageEngineFactory;
import org.apache.samza.storage.kv.KeyValueStore;
import org.apache.samza.storage.kv.KeyValueStoreMetrics;
import org.apache.samza.system.SystemStreamPartition;


public class InMemoryKeyValueStorageEngineFactory<K, V> extends BaseKeyValueStorageEngineFactory<K, V> {
  @Override
  protected KeyValueStore<byte[], byte[]> getKVStore(String storeName,
      File storeDir,
      MetricsRegistry registry,
      SystemStreamPartition changeLogSystemStreamPartition,
      JobContext jobContext,
      ContainerContext containerContext,
      StoreMode storeMode) {
    KeyValueStoreMetrics metrics = new KeyValueStoreMetrics(storeName, registry);
    return new InMemoryKeyValueStore(metrics);
  }
}