org.gmdev.pdftrick.render.PdfRenderLeft.java Source code

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Here is the source code for org.gmdev.pdftrick.render.PdfRenderLeft.java

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/*
 * This file is part of the PdfTrick project.
 * Copyright: (C) 2014
 * Author: Gian Luca Mori
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 * For more information, please contact Gian Luca Mori at this
 * address: giansluca@gmail.com
 */
package org.gmdev.pdftrick.render;

import org.apache.log4j.Logger;
import org.gmdev.pdftrick.factory.PdfTrickFactory;
import org.gmdev.pdftrick.thread.DivisionThumb;
import org.gmdev.pdftrick.thread.ExecPool;
import org.gmdev.pdftrick.thread.ShowThumbs;
import org.gmdev.pdftrick.utils.Consts;
import org.gmdev.pdftrick.utils.PdfTrickMessages;
import org.gmdev.pdftrick.utils.PdfTrickUtils;

import com.itextpdf.text.pdf.PdfReader;

/**
 * @author Gian Luca Mori
 */
public class PdfRenderLeft {

    private static final Logger logger = Logger.getLogger(PdfRenderLeft.class);
    private static final PdfTrickFactory factory = PdfTrickFactory.getFactory();

    /**
     * Constructor
     */
    public PdfRenderLeft() {
    }

    /**
     * Render pdf resultfile thumbs in a left_panel, using threads pool
     */
    public void pdfRender() {
        String imgPath = PdfTrickUtils.createImgFolder();
        int totPages = 0;

        // get the page number of the new generated pdf
        try {
            PdfReader reader = new PdfReader(factory.getResultFile());
            totPages = reader.getNumberOfPages();
            factory.setNumPages(totPages);
            reader.close();
        } catch (Exception e) {
            logger.error("Exception", e);
            PdfTrickMessages.append("ERROR", Consts.SENDLOG_MSG);
        }

        // system of thread that call native function and renderizing pdf cover in png images 
        boolean runPool = true;
        int division = totPages / 3;
        if (totPages < 3) {
            runPool = false;
            division = totPages;
        }

        DivisionThumb divisionThumbs = new DivisionThumb(division, imgPath);
        factory.gettContainer().setDivisionThumbs(divisionThumbs);

        Thread divisionThumbsThread = new Thread(divisionThumbs, "divisionThumbsThread");
        factory.gettContainer().setDivisionThumbsThread(divisionThumbsThread);
        divisionThumbsThread.start();

        if (runPool) {
            ExecPool execPool = new ExecPool(totPages, division, imgPath);
            factory.gettContainer().setExecPool(execPool);

            Thread execPoolThread = new Thread(execPool, "execPoolThread");
            factory.gettContainer().setExecPoolThread(execPoolThread);
            execPoolThread.start();
        }

        // thread that search and showing thumbnails 
        ShowThumbs showThumbs = new ShowThumbs();
        factory.gettContainer().setShowThumbs(showThumbs);

        Thread showThumbsThread = new Thread(showThumbs, "showThumbsThread");
        factory.gettContainer().setShowThumbsThread(showThumbsThread);
        showThumbsThread.start();
    }

}