/**
* Copyright (c) 2016 Cisco Systems, Inc. and others. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 which accompanies this distribution,
* and is available at http://www.eclipse.org/legal/epl-v10.html
*/
package org.opendaylight.openflowplugin.applications.frsync.dao;
import com.google.common.base.Optional;
import java.util.concurrent.ConcurrentHashMap;
import javax.annotation.Nonnull;
import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
import org.opendaylight.yang.gen.v1.urn.opendaylight.inventory.rev130819.NodeId;
/**
* Adding cache to data access object of {@link FlowCapableNode}.
*/
public class FlowCapableNodeSnapshotDao implements FlowCapableNodeDao {
private final ConcurrentHashMap<String, FlowCapableNode> cache = new ConcurrentHashMap<>();
public void updateCache(@Nonnull NodeId nodeId, Optional<FlowCapableNode> dataAfter) {
if (dataAfter.isPresent()) {
cache.put(nodeId.getValue(), dataAfter.get());
} else {
cache.remove(nodeId.getValue());
}
}
public Optional<FlowCapableNode> loadByNodeId(@Nonnull NodeId nodeId) {
final FlowCapableNode node = cache.get(nodeId.getValue());
return Optional.fromNullable(node);
}
}