package net.onrc.onos.core.datastore;

import net.onrc.onos.core.datastore.hazelcast.HZClient;
import net.onrc.onos.core.datastore.ramcloud.RCClient;

// This class probably need to be a service
public final class DataStoreClient {

    public static final int MAX_KEY_BYTES = 64 * 1024;
    public static final int MAX_VALUE_BYTES = 1024 * 1024;

    private static final String BACKEND = System.getProperty("net.onrc.onos.core.datastore.backend", "hazelcast");

    // Suppresses default constructor, ensuring non-instantiability.
    private DataStoreClient() {
    }

    public static IKVClient getClient() {
        // TODO read config and return appropriate IKVClient
        switch (BACKEND) {
            case "ramcloud":
                return RCClient.getClient();
            case "hazelcast":
                return HZClient.getClient();
            default:
                return HZClient.getClient();
        }
    }


}