org.neo4j.kernel.impl.api.parallel.ExecutionContextGraphDatabaseAPI Maven / Gradle / Ivy

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Neo4j kernel is a lightweight, embedded Java database designed to store data structured as graphs rather than tables. For more information, see http://neo4j.org.
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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.neo4j.kernel.impl.api.parallel;

import java.time.Duration;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.function.Consumer;
import org.neo4j.common.DependencyResolver;
import org.neo4j.dbms.systemgraph.TopologyGraphDbmsModel;
import org.neo4j.graphdb.QueryExecutionException;
import org.neo4j.graphdb.ResultTransformer;
import org.neo4j.graphdb.Transaction;
import org.neo4j.internal.kernel.api.connectioninfo.ClientConnectionInfo;
import org.neo4j.internal.kernel.api.connectioninfo.RoutingInfo;
import org.neo4j.internal.kernel.api.security.LoginContext;
import org.neo4j.io.layout.DatabaseLayout;
import org.neo4j.kernel.api.KernelTransaction;
import org.neo4j.kernel.api.exceptions.Status;
import org.neo4j.kernel.database.NamedDatabaseId;
import org.neo4j.kernel.impl.coreapi.InternalTransaction;
import org.neo4j.kernel.impl.coreapi.TransactionExceptionMapper;
import org.neo4j.kernel.impl.factory.DbmsInfo;
import org.neo4j.kernel.internal.GraphDatabaseAPI;

public class ExecutionContextGraphDatabaseAPI implements GraphDatabaseAPI {

    private final GraphDatabaseAPI delegate;

    public ExecutionContextGraphDatabaseAPI(GraphDatabaseAPI delegate) {
        this.delegate = delegate;
    }

    @Override
    public boolean isAvailable() {
        return delegate.isAvailable();
    }

    @Override
    public boolean isAvailable(long timeoutMillis) {
        return delegate.isAvailable();
    }

    @Override
    public Transaction beginTx() {
        throw failure("beginTx");
    }

    @Override
    public Transaction beginTx(long timeout, TimeUnit unit) {
        throw failure("beginTx");
    }

    @Override
    public void executeTransactionally(String query) throws QueryExecutionException {
        throw failure("executeTransactionally");
    }

    @Override
    public void executeTransactionally(String query, Map parameters) throws QueryExecutionException {
        throw failure("executeTransactionally");
    }

    @Override
    public  T executeTransactionally(
            String query, Map parameters, ResultTransformer resultTransformer)
            throws QueryExecutionException {
        throw failure("executeTransactionally");
    }

    @Override
    public  T executeTransactionally(
            String query, Map parameters, ResultTransformer resultTransformer, Duration timeout)
            throws QueryExecutionException {
        throw failure("executeTransactionally");
    }

    @Override
    public String databaseName() {
        return delegate.databaseName();
    }

    @Override
    public DependencyResolver getDependencyResolver() {
        return delegate.getDependencyResolver();
    }

    @Override
    public DatabaseLayout databaseLayout() {
        return delegate.databaseLayout();
    }

    @Override
    public NamedDatabaseId databaseId() {
        return delegate.databaseId();
    }

    @Override
    public DbmsInfo dbmsInfo() {
        return delegate.dbmsInfo();
    }

    @Override
    public TopologyGraphDbmsModel.HostedOnMode mode() {
        return delegate.mode();
    }

    @Override
    public InternalTransaction beginTransaction(KernelTransaction.Type type, LoginContext loginContext) {
        throw failure("beginTransaction");
    }

    @Override
    public InternalTransaction beginTransaction(
            KernelTransaction.Type type, LoginContext loginContext, ClientConnectionInfo clientInfo) {
        throw failure("beginTransaction");
    }

    @Override
    public InternalTransaction beginTransaction(
            KernelTransaction.Type type,
            LoginContext loginContext,
            ClientConnectionInfo clientInfo,
            long timeout,
            TimeUnit unit) {
        throw failure("beginTransaction");
    }

    @Override
    public InternalTransaction beginTransaction(
            KernelTransaction.Type type,
            LoginContext loginContext,
            ClientConnectionInfo clientInfo,
            RoutingInfo routingInfo,
            long timeout,
            TimeUnit unit,
            Consumer terminationCallback,
            TransactionExceptionMapper transactionExceptionMapper) {
        throw failure("beginTransaction");
    }

    private static UnsupportedOperationException failure(String op) {
        throw new UnsupportedOperationException(
                "'graphDatabaseService." + op
                        + "' is not supported in procedures when called from parallel runtime. Please retry using another runtime.");
    }
}