com.papteco.client.netty.SelProjectClientHandler.java Source code

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Here is the source code for com.papteco.client.netty.SelProjectClientHandler.java

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/*
 * Copyright 2012 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 com.papteco.client.netty;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;

import java.io.File;

import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;

import com.papteco.client.action.JPromptWindow;
import com.papteco.client.bqueue.QueueBuilder;
import com.papteco.client.ui.EnvConstant;
import com.papteco.web.beans.ClientRequestBean;
import com.papteco.web.beans.FileBean;
import com.papteco.web.beans.FolderBean;
import com.papteco.web.beans.ProjectBean;
import com.papteco.web.beans.QueueItem;

public class SelProjectClientHandler extends ChannelInboundHandlerAdapter {

    private static final Logger logger = Logger.getLogger(SelProjectClientHandler.class.getName());

    private ClientRequestBean req = new ClientRequestBean(NettyConstant.SEL_PROJECT_ACTION_TYPE);
    private String prjCde;

    /**
     * Creates a client-side handler.
     */
    public SelProjectClientHandler(String prjCde, String reqUser) {
        req.setPrjCde(prjCde);
        req.setReqUser(reqUser);
        this.prjCde = prjCde;
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        // Send the first message if this handler is a client-side handler.
        ctx.writeAndFlush(req);
    }

    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        // TODO Auto-generated method stub
        logger.info("Project Search Disconnected!");
    }

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        // Echo back the received object to the server.
        ClientRequestBean bean = (ClientRequestBean) msg;
        if (bean.getPrjObj() != null) {
            ProjectBean prj = (ProjectBean) bean.getPrjObj();
            this.prepareLocalFolders(prj);
            this.submitFileJobsToQueue(prj);
            JPromptWindow.showInfoMsg("Request Complete !");
        } else {
            if (bean.getReqUser() == null)
                JPromptWindow.showWarnMsg("Cannot find the user.");
            else
                JPromptWindow.showWarnMsg("Cannot find the specific project.");
        }
        ctx.close();
    }

    private void submitFileJobsToQueue(ProjectBean project) {
        for (FolderBean folder : project.getFolderTree()) {
            if (StringUtils.isNotEmpty(folder.getFolderName()) && folder.getFileTree() != null) {
                String folderName = folder.getFolderName();
                for (FileBean file : folder.getFileTree()) {
                    File f = new File(folderName, file.getFileName());
                    QueueItem q = new QueueItem("DOWNLOAD", prjCde, new String[] { f.getParent(), f.getName() },
                            "PENDING");
                    QueueBuilder.submitSingleQueue(q);
                }
            } else {
                logger.info("No Files in folder [" + folder.getFolderName() + "]");
            }

        }
    }

    private void prepareLocalFolders(ProjectBean project) {
        File projectFolder = new File(EnvConstant.LCL_STORING_PATH, project.getProjectCde());
        if (!projectFolder.exists()) {
            projectFolder.mkdirs();
            projectFolder.setExecutable(true, false);
            projectFolder.setReadable(true, false);
            projectFolder.setWritable(true, false);
            // logger.info("Folder \"" + projectFolder.getName()
            // + "\" created!");
        } else {
            // logger.info("Folder \"" + projectFolder.getName()
            // + "\" existing already!");
        }

        for (FolderBean folder : project.getFolderTree()) {
            File sf = new File(projectFolder.getPath(), folder.getFolderName());
            if (!sf.exists()) {
                sf.mkdirs();
                sf.setExecutable(true, false);
                sf.setReadable(true, false);
                sf.setWritable(true, false);
                // logger.info("(execable, readable, writeable) - ("
                // + sf.canExecute() + ", " + sf.canRead() + ", "
                // + sf.canWrite() + ") - " + projectFolder.getPath()
                // + "/" + folder.getFolderName());
            } else {
                // logger.info("(execable, readable, writeable) - ("
                // + sf.canExecute() + ", " + sf.canRead() + ", "
                // + sf.canWrite() + ") - " + projectFolder.getPath()
                // + "/" + folder.getFolderName() + " [existing already]");
            }
        }
        logger.info("Folders creation finish.");
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        logger.info("Unexpected exception from downstream.");
        ctx.close();
    }
}