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 java.io.ByteArrayOutputStream;
34 import java.io.InputStream;
35 import java.sql.SQLException;
37 import mir.log.LoggerWrapper;
38 import mir.storage.StorageObject;
39 import mir.storage.StorageObjectFailure;
40 import mir.util.StreamCopier;
41 import mircoders.media.ImageProcessor;
45 * @author RK, mh, mir-coders
46 * @version $Id: EntityImages.java,v 1.23 2004/11/06 19:56:13 idfx Exp $
50 public class EntityImages extends EntityUploadedMedia
52 private int maxImageSize = configuration.getInt("Producer.Image.MaxSize");
53 private int maxIconSize = configuration.getInt("Producer.Image.MaxIconSize");
54 private float minDescaleRatio = configuration.getFloat("Producer.Image.MinDescalePercentage")/100;
55 private int minDescaleReduction = configuration.getInt("Producer.Image.MinDescaleReduction");
62 logger = new LoggerWrapper("Entity.UploadedMedia.Images");
65 public EntityImages(StorageObject theStorage) {
67 setStorage(theStorage);
71 * Retrieves the image data
73 public InputStream getImage() throws StorageObjectFailure {
75 return storageObject.getBinaryField("select image_data from images where id="+getId());
77 catch (SQLException e) {
78 throw new StorageObjectFailure(e);
83 * Processes and saves image data
85 public void setImage(InputStream anInputStream, String type) throws StorageObjectFailure {
86 // todo: failures should be treated anInputStream a better way: exception -> rollback instead
88 if (anInputStream != null) {
90 ByteArrayOutputStream inputData = new ByteArrayOutputStream();
91 StreamCopier.copy(anInputStream, inputData);
93 ImageProcessor processor = new ImageProcessor(inputData.toByteArray());
94 processor.descaleImage(maxImageSize, minDescaleRatio, minDescaleReduction);
96 ByteArrayOutputStream imageData = new ByteArrayOutputStream();
97 processor.writeScaledData(imageData, type);
98 storageObject.setBinaryField("update images set image_data = ? where id = "+getId(), imageData.toByteArray());
100 setFieldValue("img_height", new Integer(processor.getScaledHeight()).toString());
101 setFieldValue("img_width", new Integer(processor.getScaledWidth()).toString());
104 processor.descaleImage(maxIconSize, minDescaleRatio, minDescaleReduction);
105 processor.writeScaledData(imageData, type);
106 storageObject.setBinaryField("update images set icon_data = ? where id = "+getId(), imageData.toByteArray());
108 setFieldValue("icon_height", new Integer(processor.getScaledHeight()).toString());
109 setFieldValue("icon_width", new Integer(processor.getScaledWidth()).toString());
113 catch (Exception e) {
114 throw new StorageObjectFailure(e);
120 * Takes an OutputStream as an argument and reads in the data
121 * from the DB and writes it to the OutputStream.
123 * It will also take care of closing the OutputStream.
125 public InputStream getIcon() throws StorageObjectFailure {
127 return storageObject.getBinaryField("select icon_data from images where id="+getId());
129 catch (SQLException e) {
130 throw new StorageObjectFailure(e);