erer.flying-saucer-examples.9.9.4.source-code.PDFRender Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of flying-saucer-examples Show documentation

Misc. Flying Saucer example code. It is not deployed with a release.

There is a newer version: 9.11.2

Show newest version

/*
 * Copyright (c) 2006 Patrick Wright
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the
 * as published by the Free Software Foundation; either version 2.1
 * 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */


import com.lowagie.text.DocumentException;
import org.w3c.dom.Document;
import org.xhtmlrenderer.pdf.ITextOutputDevice;
import org.xhtmlrenderer.pdf.ITextRenderer;
import org.xhtmlrenderer.pdf.ITextUserAgent;
import org.xhtmlrenderer.resource.XMLResource;
import org.xml.sax.InputSource;

import javax.annotation.ParametersAreNonnullByDefault;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.nio.file.Paths;

import static java.nio.file.Files.newOutputStream;

public class PDFRender {
    public static void main(String[] args) throws IOException, DocumentException {
        if (args.length != 2) {
            System.err.println("Usage: ... [url] [pdf]");
            System.exit(1);
        }
        String url = args[0];
        if (!url.contains("://")) {
            // maybe it's a file
            File f = new File(url);
            if (f.exists()) {
                url = f.toURI().toURL().toString();
            }
        }
        createPDF(url, args[1]);
    }

    public static void createPDF(String url, String pdf) throws IOException, DocumentException {
        try (OutputStream os = newOutputStream(Paths.get(pdf))) {
            ITextRenderer renderer = new ITextRenderer();
            ResourceLoaderUserAgent callback = new ResourceLoaderUserAgent(renderer.getOutputDevice(), renderer.getSharedContext().getDotsPerPixel());
            renderer.getSharedContext ().setUserAgentCallback(callback);

            Document doc = XMLResource.load(new InputSource(url)).getDocument();

            renderer.createPDF(doc, os);
        }
    }

    @ParametersAreNonnullByDefault
    private static class ResourceLoaderUserAgent extends ITextUserAgent {
        private ResourceLoaderUserAgent(ITextOutputDevice outputDevice, int dotsPerPixel) {
            super(outputDevice, dotsPerPixel);
        }

        @Override
        protected InputStream resolveAndOpenStream(String uri) {
            InputStream is = super.resolveAndOpenStream(uri);
            System.out.println("IN resolveAndOpenStream() " + uri);
            return is;
        }
    }
}