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.DatabaseFailure;
39 import mir.util.StreamCopier;
40 import mir.media.image.ImageProcessor;
41 import mir.media.image.JAIImageProcessor;
43 public class EntityImages extends EntityUploadedMedia
45 private int maxImageSize = configuration.getInt("Producer.Image.MaxSize");
46 private int maxIconSize = configuration.getInt("Producer.Image.MaxIconSize");
47 private float minDescaleRatio = configuration.getFloat("Producer.Image.MinDescalePercentage")/100;
48 private int minDescaleReduction = configuration.getInt("Producer.Image.MinDescaleReduction");
55 logger = new LoggerWrapper("Entity.UploadedMedia.Images");
59 * Retrieves the image data
61 public byte[] getImage() throws DatabaseFailure {
63 return database.getBinaryField("select image_data from images where id="+getId());
65 catch (SQLException e) {
66 throw new DatabaseFailure(e);
71 * Processes and saves image data
73 public void setImage(InputStream anInputStream, String type) throws DatabaseFailure {
74 if (anInputStream != null) {
76 ByteArrayOutputStream inputData = new ByteArrayOutputStream();
77 StreamCopier.copy(anInputStream, inputData);
79 ImageProcessor processor = new JAIImageProcessor(inputData.toByteArray());
80 processor.descaleImage(maxImageSize, minDescaleRatio, minDescaleReduction);
82 ByteArrayOutputStream imageData = new ByteArrayOutputStream();
83 processor.writeScaledData(imageData, type);
84 database.setBinaryField("image_data", getId(), imageData.toByteArray());
86 setFieldValue("img_height", new Integer(processor.getScaledHeight()).toString());
87 setFieldValue("img_width", new Integer(processor.getScaledWidth()).toString());
90 processor.descaleImage(maxIconSize, minDescaleRatio, minDescaleReduction);
91 processor.writeScaledData(imageData, type);
92 database.setBinaryField("icon_data", getId(), imageData.toByteArray());
94 setFieldValue("icon_height", new Integer(processor.getScaledHeight()).toString());
95 setFieldValue("icon_width", new Integer(processor.getScaledWidth()).toString());
100 throw new DatabaseFailure(e);
106 * Takes an OutputStream as an argument and reads in the data
107 * from the DB and writes it to the OutputStream.
109 * It will also take care of closing the OutputStream.
111 public byte[] getIcon() throws DatabaseFailure {
113 return database.getBinaryField("select icon_data from images where id="+getId());
115 catch (SQLException e) {
116 throw new DatabaseFailure(e);