/*
 * Copyright (c) 2014 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.datastore.modification;

import com.google.common.base.Optional;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.common.util.concurrent.MoreExecutors;
import org.junit.Before;
import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;

public abstract class AbstractModificationTest {

  protected InMemoryDOMDataStore store;

  @Before
  public void setUp(){
    store = new InMemoryDOMDataStore("test", MoreExecutors.sameThreadExecutor());
    store.onGlobalContextUpdated(TestModel.createTestContext());
  }

  protected void commitTransaction(final DOMStoreWriteTransaction transaction){
    DOMStoreThreePhaseCommitCohort cohort = transaction.ready();
    cohort.preCommit();
    cohort.commit();
  }

  protected Optional<NormalizedNode<?,?>> readData(final YangInstanceIdentifier path) throws Exception{
    DOMStoreReadTransaction transaction = store.newReadOnlyTransaction();
    ListenableFuture<Optional<NormalizedNode<?, ?>>> future = transaction.read(path);
    return future.get();
  }
}