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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.chunk;

import java.io.IOException;
import java.util.Iterator;
import java.util.List;
import org.neo4j.common.Subject;
import org.neo4j.internal.helpers.collection.Visitor;
import org.neo4j.kernel.KernelVersion;
import org.neo4j.storageengine.api.CommandBatch;
import org.neo4j.storageengine.api.StorageCommand;

public record CommandChunk(List commands, ChunkMetadata chunkMetadata) implements CommandBatch {

    @Override
    public long consensusIndex() {
        return chunkMetadata.consensusIndex().longValue();
    }

    @Override
    public long getTimeStarted() {
        return chunkMetadata.startTimeMillis();
    }

    @Override
    public long getLatestCommittedTxWhenStarted() {
        return chunkMetadata.lastTransactionIdWhenStarted();
    }

    @Override
    public long getTimeCommitted() {
        return chunkMetadata.chunkCommitTime();
    }

    @Override
    public int getLeaseId() {
        return chunkMetadata.leaseId();
    }

    @Override
    public Subject subject() {
        return chunkMetadata.subject();
    }

    @Override
    public KernelVersion kernelVersion() {
        return chunkMetadata.kernelVersion();
    }

    @Override
    public String toString(boolean includeCommands) {
        return "CommandChunk{" + "commands=" + commands + ", chunkMetadata=" + chunkMetadata + '}';
    }

    @Override
    public boolean isLast() {
        return chunkMetadata.last();
    }

    @Override
    public boolean isFirst() {
        return chunkMetadata.first();
    }

    @Override
    public boolean isRollback() {
        return chunkMetadata.rollback();
    }

    @Override
    public boolean accept(Visitor visitor) throws IOException {
        for (StorageCommand command : commands) {
            if (visitor.visit(command)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public Iterator iterator() {
        return commands.iterator();
    }

    @Override
    public int commandCount() {
        return commands.size();
    }

    @Override
    public void setConsensusIndex(long commandIndex) {
        chunkMetadata.consensusIndex().setValue(commandIndex);
    }
}