/*
 * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
 * or more contributor license agreements. Licensed under the "Elastic License
 * 2.0", the "GNU Affero General Public License v3.0 only", and the "Server Side
 * Public License v 1"; you may not use this file except in compliance with, at
 * your election, the "Elastic License 2.0", the "GNU Affero General Public
 * License v3.0 only", or the "Server Side Public License, v 1".
 */

package org.elasticsearch.transport;

import org.elasticsearch.TransportVersion;
import org.elasticsearch.common.bytes.ReleasableBytesReference;
import org.elasticsearch.common.io.stream.StreamInput;
import org.elasticsearch.common.io.stream.StreamOutput;

import java.io.IOException;

/**
 * A specialized, bytes only request, that can potentially be optimized on the network
 * layer, specifically for the same large buffer send to several nodes.
 */
public class BytesTransportRequest extends AbstractTransportRequest implements BytesTransportMessage {

    final ReleasableBytesReference bytes;
    private final TransportVersion version;

    public BytesTransportRequest(StreamInput in) throws IOException {
        super(in);
        bytes = in.readReleasableBytesReference();
        version = in.getTransportVersion();
    }

    public BytesTransportRequest(ReleasableBytesReference bytes, TransportVersion version) {
        this.bytes = bytes;
        this.version = version;
    }

    public TransportVersion version() {
        return this.version;
    }

    @Override
    public ReleasableBytesReference bytes() {
        return this.bytes;
    }

    @Override
    public void writeThin(StreamOutput out) throws IOException {
        super.writeTo(out);
        out.writeVInt(bytes.length());
    }

    @Override
    public void writeTo(StreamOutput out) throws IOException {
        super.writeTo(out);
        out.writeBytesReference(bytes);
    }

    @Override
    public void incRef() {
        bytes.incRef();
    }

    @Override
    public boolean tryIncRef() {
        return bytes.tryIncRef();
    }

    @Override
    public boolean decRef() {
        return bytes.decRef();
    }

    @Override
    public boolean hasReferences() {
        return bytes.hasReferences();
    }
}