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

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/*
 * Copyright (c) "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 java.util.Map;
import java.util.concurrent.CompletableFuture;

import org.neo4j.driver.Value;
import org.neo4j.driver.exceptions.AuthorizationExpiredException;
import org.neo4j.driver.exceptions.ConnectionReadTimeoutException;
import org.neo4j.driver.internal.async.UnmanagedTransaction;
import org.neo4j.driver.internal.spi.Connection;
import org.neo4j.driver.internal.spi.ResponseHandler;
import org.neo4j.driver.internal.util.MetadataExtractor;
import org.neo4j.driver.internal.util.QueryKeys;

public class RunResponseHandler implements ResponseHandler
{
    private final CompletableFuture runFuture;
    private final MetadataExtractor metadataExtractor;
    private long queryId = MetadataExtractor.ABSENT_QUERY_ID;

    private QueryKeys queryKeys = QueryKeys.empty();
    private long resultAvailableAfter = -1;

    private final Connection connection;
    private final UnmanagedTransaction tx;

    public RunResponseHandler( CompletableFuture runFuture, MetadataExtractor metadataExtractor, Connection connection, UnmanagedTransaction tx )
    {
        this.runFuture = runFuture;
        this.metadataExtractor = metadataExtractor;
        this.connection = connection;
        this.tx = tx;
    }

    @Override
    public void onSuccess( Map metadata )
    {
        queryKeys = metadataExtractor.extractQueryKeys( metadata );
        resultAvailableAfter = metadataExtractor.extractResultAvailableAfter( metadata );
        queryId = metadataExtractor.extractQueryId( metadata );

        runFuture.complete( null );
    }

    @Override
    public void onFailure( Throwable error )
    {
        if ( tx != null )
        {
            tx.markTerminated( error );
        }
        else if ( error instanceof AuthorizationExpiredException )
        {
            connection.terminateAndRelease( AuthorizationExpiredException.DESCRIPTION );
        }
        else if ( error instanceof ConnectionReadTimeoutException )
        {
            connection.terminateAndRelease( error.getMessage() );
        }
        runFuture.completeExceptionally( error );
    }

    @Override
    public void onRecord( Value[] fields )
    {
        throw new UnsupportedOperationException();
    }

    public QueryKeys queryKeys()
    {
        return queryKeys;
    }

    public long resultAvailableAfter()
    {
        return resultAvailableAfter;
    }

    public long queryId()
    {
        return queryId;
    }
}