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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.tinkerpop.gremlin.server.channel;
import org.apache.tinkerpop.gremlin.driver.simple.WebSocketClient;
import org.apache.tinkerpop.gremlin.server.AbstractChannelizer;
import org.apache.tinkerpop.gremlin.server.Channelizer;
import org.apache.tinkerpop.gremlin.server.auth.AllowAllAuthenticator;
import org.apache.tinkerpop.gremlin.server.handler.GremlinResponseFrameEncoder;
import org.apache.tinkerpop.gremlin.server.handler.NioGremlinBinaryRequestDecoder;
import io.netty.channel.ChannelPipeline;
import io.netty.handler.logging.LogLevel;
import io.netty.handler.logging.LoggingHandler;
import org.apache.tinkerpop.gremlin.server.handler.NioGremlinResponseFrameEncoder;
import org.apache.tinkerpop.gremlin.server.handler.SaslAuthenticationHandler;
import org.apache.tinkerpop.gremlin.server.util.ServerGremlinExecutor;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A {@link Channelizer} that exposes an NIO-based Gremlin endpoint with a custom protocol.
*
* @author Stephen Mallette (http://stephen.genoprime.com)
* @deprecated As of release 3.3.10, not replaced, use {@link WebSocketClient}.
*/
@Deprecated
public class NioChannelizer extends AbstractChannelizer {
private static final Logger logger = LoggerFactory.getLogger(NioChannelizer.class);
private SaslAuthenticationHandler authenticationHandler;
private GremlinResponseFrameEncoder gremlinResponseFrameEncoder;
private NioGremlinResponseFrameEncoder nioGremlinResponseFrameEncoder;
@Override
public void init(final ServerGremlinExecutor serverGremlinExecutor) {
super.init(serverGremlinExecutor);
// configure authentication - null means don't bother to add authentication to the pipeline
if (authenticator != null)
authenticationHandler = authenticator.getClass() == AllowAllAuthenticator.class ?
null : new SaslAuthenticationHandler(authenticator, settings.authentication);
gremlinResponseFrameEncoder = new GremlinResponseFrameEncoder();
nioGremlinResponseFrameEncoder = new NioGremlinResponseFrameEncoder();
}
@Override
public void configure(final ChannelPipeline pipeline) {
if (logger.isDebugEnabled())
pipeline.addLast(new LoggingHandler("log-io", LogLevel.DEBUG));
pipeline.addLast("nio-frame-encoder", nioGremlinResponseFrameEncoder);
pipeline.addLast("response-frame-encoder", gremlinResponseFrameEncoder);
pipeline.addLast("request-binary-decoder", new NioGremlinBinaryRequestDecoder(serializers));
if (logger.isDebugEnabled())
pipeline.addLast(new LoggingHandler("log-codec", LogLevel.DEBUG));
if (authenticationHandler != null)
pipeline.addLast(PIPELINE_AUTHENTICATOR, authenticationHandler);
}
}