de.uzk.hki.da.format.PublishPDFConversionStrategy.java Source code

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Here is the source code for de.uzk.hki.da.format.PublishPDFConversionStrategy.java

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/*
  DA-NRW Software Suite | ContentBroker
  Copyright (C) 2013 Historisch-Kulturwissenschaftliche Informationsverarbeitung
  Universitt zu Kln
    
  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/>.
*/
package de.uzk.hki.da.format;

import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import org.apache.commons.io.FileUtils;
import org.apache.commons.io.FilenameUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import de.uzk.hki.da.model.ConversionInstruction;
import de.uzk.hki.da.model.DAFile;
import de.uzk.hki.da.model.Event;
import de.uzk.hki.da.model.Object;
import de.uzk.hki.da.utils.SimplifiedCommandLineConnector;
import de.uzk.hki.da.utils.Utilities;

/**
 * Converts PDF files for the presentation layer.
 *
 * @author Sebastian Cuy
 */
public class PublishPDFConversionStrategy extends PublishConversionStrategyBase {

    /** The logger. */
    private static Logger logger = LoggerFactory.getLogger(PublishPDFConversionStrategy.class);

    /* (non-Javadoc)
     * @see de.uzk.hki.da.convert.ConversionStrategy#convertFile(de.uzk.hki.da.model.ConversionInstruction)
     */
    @Override
    public List<Event> convertFile(ConversionInstruction ci) throws IOException {

        if (ci.getConversion_routine() == null)
            throw new IllegalStateException("conversionRoutine not set");
        if (ci.getConversion_routine().getTarget_suffix().isEmpty())
            throw new IllegalStateException("target suffix in conversionRoutine not set");

        List<Event> results = new ArrayList<Event>();

        String input = ci.getSource_file().toRegularFile().getAbsolutePath();

        for (String audience : audiences) {

            String audience_lc = audience.toLowerCase();

            DAFile target = new DAFile(object.getLatestPackage(), pips + "/" + audience_lc,
                    Utilities.slashize(ci.getTarget_folder()) + FilenameUtils.getBaseName(input) + "."
                            + ci.getConversion_routine().getTarget_suffix());
            target.toRegularFile().getParentFile().mkdirs();

            String numberOfPagesText = null;
            if (getPublicationRightForAudience(audience) != null)
                if (getPublicationRightForAudience(audience).getTextRestriction() != null)
                    if (getPublicationRightForAudience(audience).getTextRestriction().getPages() != null)
                        numberOfPagesText = getPublicationRightForAudience(audience).getTextRestriction().getPages()
                                .toString();

            String certainPagesText = null;
            if (getPublicationRightForAudience(audience) != null) {
                certainPagesText = "";
                if (getPublicationRightForAudience(audience).getTextRestriction() != null)
                    if (getPublicationRightForAudience(audience).getTextRestriction().getCertainPages() != null)
                        for (int i = 0; i < getPublicationRightForAudience(audience).getTextRestriction()
                                .getCertainPages().length; i++) {
                            if (!certainPagesText.equals(""))
                                certainPagesText += " ";
                            certainPagesText += getPublicationRightForAudience(audience).getTextRestriction()
                                    .getCertainPages()[i];
                        }
                logger.debug("reduce to certain pages: " + certainPagesText);

            }

            // copy whole file if no restrictions are found
            if (numberOfPagesText == null && certainPagesText == null) {
                try {
                    FileUtils.copyFileToDirectory(new File(input), target.toRegularFile().getParentFile());
                    Event e = new Event();
                    e.setDetail("Copied PDF");
                    e.setSource_file(ci.getSource_file());
                    e.setTarget_file(target);
                    e.setType("CONVERT");
                    e.setDate(new Date());
                    results.add(e);
                } catch (IOException e) {
                    throw new RuntimeException("Could not copy PDF!", e);
                }
                continue;
            }
            PdfService pdf = new PdfService(new File(input), target.toRegularFile());
            pdf.reduceToCertainPages(numberOfPagesText, certainPagesText);
            Event e = new Event();
            e.setDetail("converted with PDFBox");
            e.setSource_file(ci.getSource_file());
            e.setTarget_file(target);
            e.setType("CONVERT");
            e.setDate(new Date());
            results.add(e);

        }

        return results;

    }

    /* (non-Javadoc)
     * @see de.uzk.hki.da.convert.ConversionStrategy#setParam(java.lang.String)
     */
    @Override
    public void setParam(String param) {
    }

    /* (non-Javadoc)
     * @see de.uzk.hki.da.convert.ConversionStrategy#setCLIConnector(de.uzk.hki.da.convert.CLIConnector)
     */
    @Override
    public void setCLIConnector(SimplifiedCommandLineConnector cliConnector) {
    }

    /* (non-Javadoc)
     * @see de.uzk.hki.da.convert.ConversionStrategy#setObject(de.uzk.hki.da.model.Object)
     */
    @Override
    public void setObject(Object obj) {
        this.object = obj;
    }

}