2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
31 package mircoders.entity;
33 import mir.log.LoggerWrapper;
34 import mir.storage.StorageObjectFailure;
35 import mir.util.StreamCopier;
36 import mircoders.media.ImageProcessor;
38 import java.io.ByteArrayOutputStream;
39 import java.io.InputStream;
40 import java.sql.SQLException;
44 * @author RK, mh, mir-coders
45 * @version $Id: EntityImages.java,v 1.21.2.6 2005/01/09 20:37:10 zapata Exp $
49 public class EntityImages extends EntityUploadedMedia
51 private int maxImageSize = configuration.getInt("Producer.Image.MaxSize");
52 private int maxIconSize = configuration.getInt("Producer.Image.MaxIconSize");
53 private float minDescaleRatio = configuration.getFloat("Producer.Image.MinDescalePercentage")/100;
54 private int minDescaleReduction = configuration.getInt("Producer.Image.MinDescaleReduction");
61 logger = new LoggerWrapper("Entity.UploadedMedia.Images");
65 * Retrieves the image data
67 public InputStream getImage() throws StorageObjectFailure {
69 return storageObject.getBinaryField("select image_data from images where id="+getId());
71 catch (SQLException e) {
72 throw new StorageObjectFailure(e);
77 * Processes and saves image data
79 public void setImage(InputStream anInputStream, String type) throws StorageObjectFailure {
80 // todo: failures should be treated anInputStream a better way: exception -> rollback instead
82 if (anInputStream != null) {
84 ByteArrayOutputStream inputData = new ByteArrayOutputStream();
85 StreamCopier.copy(anInputStream, inputData);
87 ImageProcessor processor = new ImageProcessor(inputData.toByteArray());
88 processor.descaleImage(maxImageSize, minDescaleRatio, minDescaleReduction);
90 ByteArrayOutputStream imageData = new ByteArrayOutputStream();
91 processor.writeScaledData(imageData, type);
92 storageObject.setBinaryField("update images set image_data = ? where id = "+getId(), imageData.toByteArray());
94 setFieldValue("img_height", new Integer(processor.getScaledHeight()).toString());
95 setFieldValue("img_width", new Integer(processor.getScaledWidth()).toString());
98 processor.descaleImage(maxIconSize, minDescaleRatio, minDescaleReduction);
99 processor.writeScaledData(imageData, type);
100 storageObject.setBinaryField("update images set icon_data = ? where id = "+getId(), imageData.toByteArray());
102 setFieldValue("icon_height", new Integer(processor.getScaledHeight()).toString());
103 setFieldValue("icon_width", new Integer(processor.getScaledWidth()).toString());
107 catch (Exception e) {
108 throw new StorageObjectFailure(e);
114 * Takes an OutputStream as an argument and reads in the data
115 * from the DB and writes it to the OutputStream.
117 * It will also take care of closing the OutputStream.
119 public InputStream getIcon() throws StorageObjectFailure {
121 return storageObject.getBinaryField("select icon_data from images where id="+getId());
123 catch (SQLException e) {
124 throw new StorageObjectFailure(e);