se.billes.pdf.renderer.process.Renderer.java Source code

Introduction

Here is the source code for se.billes.pdf.renderer.process.Renderer.java

Source

package se.billes.pdf.renderer.process;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.util.Date;

import se.billes.pdf.renderer.exception.PdfRenderException;
import se.billes.pdf.renderer.model.Page;
import se.billes.pdf.renderer.request.PdfDocument;
import se.billes.pdf.renderer.request.PdfRequest;
import se.billes.pdf.renderer.request.factory.ImageFactory;
import se.billes.pdf.renderer.request.factory.SizeFactory;
import se.billes.pdf.renderer.response.PdfAction;
import se.billes.pdf.renderer.response.PdfResponse;

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.pdf.PdfWriter;

/**
 * This program is built on top of iText.
 * 
 * This program is free software; you can redistribute it and/or modify it under the terms of the 
 * GNU Affero General Public License version 3 as published by the Free Software Foundation with 
 * the addition of the following permission added to Section 15 as permitted in Section 7(a): 
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY ITEXT GROUP NV, ITEXT GROUP 
 * DISCLAIMS THE WARRANTY OF NON INFRINGEMENT OF THIRD PARTY RIGHTS
 * 
 * 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 Affero General Public License for more details. You should have received a copy of 
 * the GNU Affero General Public License along with this program; if not, 
 * see http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc., 51 Franklin Street, 
 * Fifth Floor, Boston, MA, 02110-1301 USA, or download the license from the following
 * URL: http://itextpdf.com/terms-of-use/ 
 * The interactive user interfaces in modified source and object code versions of this program must 
 * display Appropriate Legal Notices, as required under Section 5 of the GNU Affero General Public License.
 * In accordance with Section 7(b) of the GNU Affero General Public License, you must retain the producer line 
 * in every PDF that is created or manipulated using iText. You can be released from the requirements of the 
 * license by purchasing a commercial license. Buying such a license is mandatory as soon as you develop 
 * commercial activities involving the iText software without disclosing the source code of your own 
 * applications. These activities include: offering paid services to customers as an ASP, 
 * serving PDFs on the fly in a web application, shipping iText with a closed source product.
 */
public abstract class Renderer {

    private PdfRequest pdfRequest;

    public Renderer(PdfRequest pdfRequest) {
        this.pdfRequest = pdfRequest;
    }

    public void onRender() throws PdfRenderException {

        long startTime = new Date().getTime();
        System.err.println(startTime + ": Renderer called");
        PdfDocument pdfDocument = pdfRequest.getDocument();
        File destinationPdf = new File(pdfRequest.getPath(), pdfDocument.getName());
        Document document = new Document();
        boolean finishedRender = false;
        PdfWriter writer = null;
        try {
            writer = PdfWriter.getInstance(document, new FileOutputStream(destinationPdf));
            document.addAuthor("iText");
            writer.setBoxSize("trim", new SizeFactory().getTrimBoxAsRectangle(pdfDocument));
            document.setPageSize(new SizeFactory().getSizeAsRectangle(pdfDocument));

            document.open();
            for (Page page : pdfDocument.getPages()) {
                page.onNewPage(writer, document);
            }
            System.err.println(new Date().getTime() + ": Renderer finished");
            finishedRender = true;

        } catch (FileNotFoundException e) {
            generatePdfRenderException(e);
        } catch (DocumentException e) {
            generatePdfRenderException(e);
        } catch (Exception e) {
            generatePdfRenderException(e);
        } finally {
            try {
                writer.close();
            } catch (Exception e) {
            }
            try {
                document.close();
            } catch (Exception e) {
            }

            ImageFactory.clear();

            if (finishedRender) {
                System.err.println(new Date().getTime() + ": document closed");
                long endTime = new Date().getTime();
                PdfAction action = new PdfAction();
                action.setFile(destinationPdf.getAbsolutePath());
                action.setExecutionOfPdfRendering(endTime - startTime);
                action.setTotalTimeOfExecution(endTime - pdfRequest.getStartExecutionTime());
                action.setSuccess(true);
                action.setParams(pdfRequest.getParams());
                PdfResponse response = new PdfResponse();
                response.setAction(action);
                onRendered(response);
            }
        }

    }

    public void generatePdfRenderException(Exception e) throws PdfRenderException {
        throw new PdfRenderException(e);
    }

    /**
     * Called when and if the renderer process is done
     */
    public abstract void onRendered(PdfResponse pdfResponse);

}