/*
 * Copyright (c) 2015 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.controller.cluster.databroker;

import com.google.common.base.Optional;
import com.google.common.util.concurrent.CheckedFuture;
import java.util.Map;
import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;

public class DOMBrokerReadOnlyTransaction<T extends DOMStoreReadTransaction>
    extends AbstractDOMBrokerTransaction<LogicalDatastoreType, T>
        implements DOMDataReadOnlyTransaction {
    /**
     * Creates new composite Transactions.
     *
     * @param identifier Identifier of transaction.
     */
    protected DOMBrokerReadOnlyTransaction(Object identifier, Map storeTxFactories) {
        super(identifier, storeTxFactories);
    }

    @Override
    public CheckedFuture<Optional<NormalizedNode<?,?>>, ReadFailedException> read(
            final LogicalDatastoreType store, final YangInstanceIdentifier path) {
        return getSubtransaction(store).read(path);
    }

    @Override
    public CheckedFuture<Boolean, ReadFailedException> exists(
            final LogicalDatastoreType store,
            final YangInstanceIdentifier path) {
        return getSubtransaction(store).exists(path);
    }

    @Override
    public void close() {
        closeSubtransactions();
    }

    @Override
    protected T createTransaction(LogicalDatastoreType key) {
        return (T) getTxFactory(key).newReadOnlyTransaction();
    }


}