2 * Copyright (c) 2023 PANTHEON.tech, s.r.o. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.netconf.nettyutil.handler;
10 import io.netty.buffer.ByteBuf;
11 import io.netty.handler.codec.MessageToByteEncoder;
12 import org.eclipse.jdt.annotation.NonNull;
13 import org.opendaylight.netconf.api.messages.FramingMechanism;
14 import org.slf4j.Logger;
15 import org.slf4j.LoggerFactory;
18 * An channel handler framing outbound messages into specified framing.
20 public abstract sealed class FramingMechanismEncoder extends MessageToByteEncoder<ByteBuf>
21 permits ChunkedFramingMechanismEncoder, EOMFramingMechanismEncoder {
22 private static final Logger LOG = LoggerFactory.getLogger(FramingMechanismEncoder.class);
24 FramingMechanismEncoder() {
29 * Return a {@link FramingMechanismEncoder} for specified {@link FramingMechanism}.
31 * @param framingMechanism Desired {@link FramingMechanism}
32 * @return A {@link FramingMechanismEncoder}
34 public static final @NonNull FramingMechanismEncoder of(final FramingMechanism framingMechanism) {
35 LOG.debug("{} framing mechanism was selected.", framingMechanism);
36 return switch (framingMechanism) {
37 case CHUNK -> new ChunkedFramingMechanismEncoder();
38 case EOM -> new EOMFramingMechanismEncoder();