org.neo4j.driver.internal.handlers.PullHandlers Maven / Gradle / Ivy

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/*
 * Copyright (c) 2002-2020 "Neo4j,"
 * Neo4j Sweden AB [http://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.neo4j.driver.internal.handlers;

import org.neo4j.driver.Query;
import org.neo4j.driver.internal.BookmarkHolder;
import org.neo4j.driver.internal.async.UnmanagedTransaction;
import org.neo4j.driver.internal.handlers.pulln.AutoPullResponseHandler;
import org.neo4j.driver.internal.handlers.pulln.BasicPullResponseHandler;
import org.neo4j.driver.internal.handlers.pulln.PullResponseHandler;
import org.neo4j.driver.internal.messaging.v3.BoltProtocolV3;
import org.neo4j.driver.internal.spi.Connection;

public class PullHandlers
{

    public static PullAllResponseHandler newBoltV3PullAllHandler(Query query, RunResponseHandler runHandler, Connection connection,
            BookmarkHolder bookmarkHolder, UnmanagedTransaction tx )
    {
        PullResponseCompletionListener completionListener = createPullResponseCompletionListener( connection, bookmarkHolder, tx );

        return new LegacyPullAllResponseHandler(query, runHandler, connection, BoltProtocolV3.METADATA_EXTRACTOR, completionListener );
    }

    public static PullAllResponseHandler newBoltV4AutoPullHandler(Query query, RunResponseHandler runHandler, Connection connection,
                                                                  BookmarkHolder bookmarkHolder, UnmanagedTransaction tx, long fetchSize )
    {
        PullResponseCompletionListener completionListener = createPullResponseCompletionListener( connection, bookmarkHolder, tx );

        return new AutoPullResponseHandler(query, runHandler, connection, BoltProtocolV3.METADATA_EXTRACTOR, completionListener, fetchSize );
    }


    public static PullResponseHandler newBoltV4BasicPullHandler(Query query, RunResponseHandler runHandler, Connection connection,
            BookmarkHolder bookmarkHolder, UnmanagedTransaction tx )
    {
        PullResponseCompletionListener completionListener = createPullResponseCompletionListener( connection, bookmarkHolder, tx );

        return new BasicPullResponseHandler(query, runHandler, connection, BoltProtocolV3.METADATA_EXTRACTOR, completionListener );
    }

    private static PullResponseCompletionListener createPullResponseCompletionListener( Connection connection, BookmarkHolder bookmarkHolder,
            UnmanagedTransaction tx )
    {
        return tx != null ? new TransactionPullResponseCompletionListener( tx ) : new SessionPullResponseCompletionListener( connection, bookmarkHolder );
    }
}