io.nats.client.impl.ProtocolMessage Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of jnats Show documentation

Client library for working with the NATS messaging system.

The newest version!

// Copyright 2015-2022 The NATS Authors
// 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 io.nats.client.impl;

import io.nats.client.support.ByteArrayBuilder;

// ----------------------------------------------------------------------------------------------------
// Protocol message is a special version of a NatsPublishableMessage extends NatsMessage
// ----------------------------------------------------------------------------------------------------
class ProtocolMessage extends NatsPublishableMessage {

    ProtocolMessage(ByteArrayBuilder babProtocol) {
        super(false);
        protocolBab = babProtocol;
        sizeInBytes = controlLineLength = protocolBab.length() + 2; // CRLF, protocol doesn't have data
    }

    ProtocolMessage(byte[] protocol) {
        super(false);
        protocolBab = new ByteArrayBuilder(protocol);
        sizeInBytes = controlLineLength = protocolBab.length() + 2; // CRLF, protocol doesn't have data
    }

    ProtocolMessage(ProtocolMessage pm) {
        super(false);
        protocolBab = pm.protocolBab;
        sizeInBytes = controlLineLength = pm.sizeInBytes;
    }

    @Override
    boolean isProtocol() {
        return true;
    }

    @Override
    int copyNotEmptyHeaders(int destPosition, byte[] dest) {
        return 0; // until a protocol messages gets headers, might as well shortcut this.
    }
}