1 /*
2 * Copyright (c) 2002-2023, City of Paris
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright notice
10 * and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright notice
13 * and the following disclaimer in the documentation and/or other materials
14 * provided with the distribution.
15 *
16 * 3. Neither the name of 'Mairie de Paris' nor 'Lutece' nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 * POSSIBILITY OF SUCH DAMAGE.
31 *
32 * License 1.0
33 */
34 package fr.paris.lutece.plugins.document.utils;
35
36 import org.imgscalr.Scalr;
37
38 import java.awt.image.BufferedImage;
39
40 import java.io.ByteArrayInputStream;
41 import java.io.ByteArrayOutputStream;
42 import java.io.IOException;
43
44 import javax.imageio.ImageIO;
45
46
47 /**
48 * Image utils class
49 */
50 public final class ImageUtils
51 {
52 /** Parameter JPG */
53 private static final String PARAMETER_JPG = "jpg";
54
55 /**
56 * Private constructor
57 */
58 private ImageUtils( )
59 {
60 }
61
62 /**
63 * Resize an image
64 * @param byteArray the original byte arrau
65 * @param width the new width
66 * @return the resize byte array
67 * @throws IOException occurs during treatment
68 */
69 public static byte[] resizeImage( byte[] byteArray, int width )
70 throws IOException
71 {
72 // Crop image if needed
73 ByteArrayInputStream in = new ByteArrayInputStream( byteArray );
74 ByteArrayOutputStream out = new ByteArrayOutputStream( );
75 BufferedImage image = ImageIO.read( in );
76 BufferedImage resizedImage;
77 resizedImage = Scalr.resize( image, Scalr.Mode.FIT_TO_WIDTH, width );
78 ImageIO.write( resizedImage, PARAMETER_JPG, out );
79
80 return out.toByteArray( );
81 }
82 }