/*
 * Copyright (c) 2013 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.config.facade.xml;

import java.util.Set;
import javax.management.ObjectName;
import org.opendaylight.controller.config.facade.xml.transactions.TransactionProvider;
import org.opendaylight.controller.config.util.ConfigRegistryClient;
import org.opendaylight.controller.config.util.ConfigTransactionClient;

public class CandidateDatastoreQueryStrategy implements DatastoreQueryStrategy {

    private final TransactionProvider transactionProvider;

    public CandidateDatastoreQueryStrategy(TransactionProvider transactionProvider) {
        this.transactionProvider = transactionProvider;
    }

    @Override
    public Set<ObjectName> queryInstances(ConfigRegistryClient configRegistryClient) {
        ObjectName on = transactionProvider.getOrCreateTransaction();
        ConfigTransactionClient proxy = configRegistryClient.getConfigTransactionClient(on);
        return proxy.lookupConfigBeans();
    }

}