se.billes.pdf.renderer.request.factory.ImageFactory.java Source code

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Here is the source code for se.billes.pdf.renderer.request.factory.ImageFactory.java

Source

package se.billes.pdf.renderer.request.factory;

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

import se.billes.pdf.renderer.model.ImageInstance;

import com.itextpdf.text.BadElementException;
import com.itextpdf.text.Image;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfImportedPage;
import com.itextpdf.text.pdf.PdfReader;

/**
 * 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 class ImageFactory {

    private static List<ImageInstance> instances = new ArrayList<ImageInstance>();

    public ImageInstance getImageByFile(PdfContentByte cb, File file) throws IOException, BadElementException {
        Image image = null;
        ImageInstance instance = null;
        if (file.getName().toLowerCase().endsWith(".pdf")) {
            PdfReader reader = new PdfReader(file.getAbsolutePath());
            PdfImportedPage p = cb.getPdfWriter().getImportedPage(reader, 1);
            image = Image.getInstance(p);
            instance = new ImageInstance(image, reader);
        } else {
            image = Image.getInstance(file.getAbsolutePath());
            instance = new ImageInstance(image, null);
        }

        instances.add(instance);

        return instance;
    }

    public static List<ImageInstance> getInstances() {
        return instances;
    }

    public boolean isPdf(File file) {
        if (file.getName().toLowerCase().endsWith(".pdf")) {
            return true;
        }

        return false;
    }

    public static void clear() {
        Iterator<ImageInstance> iter = instances.iterator();
        while (iter.hasNext()) {
            ImageInstance instance = iter.next();
            try {
                if (instance.getPdfReader() != null) {
                    instance.getPdfReader().close();

                }
            } catch (Exception e) {
            }
            iter.remove();
        }

    }

}