monica.files.socket.FileServerHandler.java Source code

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Here is the source code for monica.files.socket.FileServerHandler.java

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/*
 * Copyright 2014 The Netty Project
 *
 * The Netty Project 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 monica.files.socket;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import monica.configuration.context.ConfigurationContext;
import monica.framework.Storage;
import monica.framework.storage.AbstractStorageFactory;
import monica.framework.transport.TransportFile;
import io.netty.channel.ChannelHandler.Sharable;

/**
 * 
 * @author lucy@polarcoral.com
 *
 *         2017-08-29
 */
@Sharable
public class FileServerHandler extends SimpleChannelInboundHandler<Object> {
    private String STORAGE_CONFIG_KEY = "storage";
    private final int poolSize = 20;

    @Override
    public void channelRead0(ChannelHandlerContext ctx, Object msg) throws Exception {
        ExecutorService storageService = Executors.newFixedThreadPool(poolSize);
        String storageFactoryName = String.valueOf(ConfigurationContext.propMap.get(STORAGE_CONFIG_KEY));
        Object o = this.getClass().getClassLoader().loadClass(storageFactoryName).newInstance();
        Storage storage = ((AbstractStorageFactory) o).newStorageInstance();
        storageService.execute(new Runnable() {
            @Override
            public void run() {
                storage.storage((TransportFile) msg);
            }
        });
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
        cause.printStackTrace();
        if (ctx.channel().isActive()) {
            ctx.writeAndFlush("ERR: " + cause.getClass().getSimpleName() + ": " + cause.getMessage() + '\n')
                    .addListener(ChannelFutureListener.CLOSE);
        }
    }
}