/*
 * Copyright (c) 2015 Cisco Systems 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.dsbenchmark.simpletx;

import java.util.concurrent.ExecutionException;
import org.opendaylight.dsbenchmark.DatastoreAbstractWriter;
import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
import org.opendaylight.mdsal.dom.api.DOMDataBroker;
import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dsbenchmark.rev150105.StartTestInput;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dsbenchmark.rev150105.StartTestInput.DataStore;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dsbenchmark.rev150105.TestExec;
import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.dsbenchmark.rev150105.test.exec.OuterList;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class SimpletxDomDelete extends DatastoreAbstractWriter {
    private static final Logger LOG = LoggerFactory.getLogger(SimpletxDomDelete.class);
    private final DOMDataBroker domDataBroker;

    public SimpletxDomDelete(final DOMDataBroker domDataBroker, final int outerListElem,
            final int innerListElem, final long writesPerTx, final DataStore dataStore) {
        super(StartTestInput.Operation.DELETE, outerListElem, innerListElem, writesPerTx, dataStore);
        this.domDataBroker = domDataBroker;
        LOG.debug("Created simpleTxDomDelete");
    }

    @Override
    public void createList() {
        LOG.debug("SimpletxDomDelete: creating data in the data store");
        // Dump the whole list into the data store in a single transaction
        // with <outerListElem> PUTs on the transaction
        SimpletxDomWrite dd = new SimpletxDomWrite(domDataBroker,
                                                   StartTestInput.Operation.PUT,
                                                   outerListElem,
                                                   innerListElem,
                                                   outerListElem,
                                                   dataStore);
        dd.createList();
        dd.executeList();
    }

    @Override
    public void executeList() {
        final LogicalDatastoreType dsType = getDataStoreType();
        final org.opendaylight.yangtools.yang.common.QName olId = QName.create(OuterList.QNAME, "id");
        final YangInstanceIdentifier pid =
                YangInstanceIdentifier.builder().node(TestExec.QNAME).node(OuterList.QNAME).build();


        DOMDataTreeWriteTransaction tx = domDataBroker.newWriteOnlyTransaction();
        long writeCnt = 0;

        for (int l = 0; l < outerListElem; l++) {
            YangInstanceIdentifier yid = pid.node(new NodeIdentifierWithPredicates(OuterList.QNAME, olId, l));

            tx.delete(dsType, yid);
            writeCnt++;
            if (writeCnt == writesPerTx) {
                try {
                    tx.commit().get();
                    txOk++;
                } catch (final  InterruptedException | ExecutionException e) {
                    LOG.error("Transaction failed: {}", e);
                    txError++;
                }
                tx = domDataBroker.newWriteOnlyTransaction();
                writeCnt = 0;
            }
        }
        if (writeCnt != 0) {
            try {
                tx.commit().get();
            } catch (final InterruptedException | ExecutionException e) {
                LOG.error("Transaction failed: {}", e);
            }
        }
    }

}