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The official Couchbase JVM Core IO Library
/*
* Copyright 2023 Couchbase, Inc.
*
* 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
*
* https://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 com.couchbase.client.core.io.netty.kv;
import com.couchbase.client.core.cnc.events.io.UnknownServerPushRequestReceivedEvent;
import com.couchbase.client.core.deps.io.netty.buffer.ByteBuf;
import com.couchbase.client.core.deps.io.netty.buffer.ByteBufUtil;
import com.couchbase.client.core.deps.io.netty.channel.ChannelHandlerContext;
import com.couchbase.client.core.deps.io.netty.channel.ChannelInboundHandlerAdapter;
import com.couchbase.client.core.endpoint.EndpointContext;
import static java.util.Objects.requireNonNull;
public class ServerPushHandler extends ChannelInboundHandlerAdapter {
private final EndpointContext endpointContext;
public ServerPushHandler(EndpointContext endpointContext) {
this.endpointContext = requireNonNull(endpointContext);
}
@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
if (msg instanceof ByteBuf) {
ByteBuf buf = (ByteBuf) msg;
if (MemcacheProtocol.magic(buf) == MemcacheProtocol.Magic.SERVER_PUSH_REQUEST.magic()) {
try {
byte opcodeByte = MemcacheProtocol.opcode(buf);
MemcacheProtocol.ServerPushOpcode opcode = MemcacheProtocol.ServerPushOpcode.of(opcodeByte);
if (opcode == MemcacheProtocol.ServerPushOpcode.CLUSTERMAP_CHANGE_NOTIFICATION) {
this.endpointContext.core().configurationProvider().signalConfigChanged();
return;
}
endpointContext.core().environment().eventBus().publish(
new UnknownServerPushRequestReceivedEvent(null, ByteBufUtil.getBytes(buf))
);
return;
} finally {
buf.release();
}
}
}
ctx.fireChannelRead(msg);
}
}