org.vootoo.server.netty.SolrServerChannelInitializer.java Source code

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Here is the source code for org.vootoo.server.netty.SolrServerChannelInitializer.java

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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.vootoo.server.netty;

import io.netty.channel.Channel;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
import io.netty.handler.codec.LengthFieldPrepender;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;
import org.apache.solr.core.CoreContainer;
import org.vootoo.client.netty.protocol.SolrProtocol;
import org.vootoo.server.RequestExecutor;

/**
 * solr channel init
 */
public class SolrServerChannelInitializer extends ChannelInitializer<Channel> {

    private final CoreContainer coreContainer;
    private final ChannelHandlerConfigs handlerConfigs;
    private final RequestExecutor queryExecutor;
    private final RequestExecutor updateExecutor;

    public SolrServerChannelInitializer(CoreContainer coreContainer, ChannelHandlerConfigs handlerConfigs,
            RequestExecutor queryExecutor, RequestExecutor updateExecutor) {
        this.coreContainer = coreContainer;
        this.handlerConfigs = handlerConfigs;

        this.queryExecutor = queryExecutor;
        this.updateExecutor = updateExecutor;
    }

    @Override
    protected void initChannel(Channel ch) throws Exception {
        ChannelPipeline pipeline = ch.pipeline();

        pipeline.addLast("frame-decoder",
                new LengthFieldBasedFrameDecoder(handlerConfigs.getMaxFrameLength(), 0, 4, 0, 4));
        pipeline.addLast("frame-encoder", new LengthFieldPrepender(4));

        pipeline.addLast("pb-decoder", new ProtobufDecoder(SolrProtocol.SolrRequest.getDefaultInstance()));
        pipeline.addLast("pb-encoder", new ProtobufEncoder());

        pipeline.addLast(new SolrServerHandler(coreContainer, queryExecutor, updateExecutor));
    }
}