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comparison common/src/main/java/digilib/image/ImageInfoDocuImage.java @ 903:7779b37d1d05

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refactored into maven modules per servlet type. can build servlet-api 2.3 and 3.0 via profile now!
author robcast
date Tue, 26 Apr 2011 20:24:31 +0200
parents servlet/src/main/java/digilib/image/ImageInfoDocuImage.java@6e15201cdce9
children 6853c02b238b
comparison
equal deleted inserted replaced
902:89ba3ffcf552 903:7779b37d1d05
1 /**
2 *
3 */
4 package digilib.image;
5
6 import java.io.IOException;
7 import java.io.RandomAccessFile;
8
9 import org.devlib.schmidt.imageinfo.ImageInfo;
10
11 import digilib.io.ImageInput;
12 import digilib.util.ImageSize;
13
14 /** Simple abstract implementation of the <code>DocuImage</code> interface.
15 * Implements only the identify method using the ImageInfo class.
16 * @author casties
17 *
18 */
19 public abstract class ImageInfoDocuImage extends DocuImageImpl {
20
21 /* Check image size and type and store in ImageFile f */
22 public ImageInput identify(ImageInput ii) throws IOException {
23 logger.debug("identifying (ImageInfo) " + ii);
24 RandomAccessFile raf = null;
25 try {
26 // set up ImageInfo object
27 ImageInfo iif = new ImageInfo();
28 if (ii.hasImageInputStream()) {
29 iif.setInput(ii.getImageInputStream());
30 } else if (ii.hasFile()) {
31 raf = new RandomAccessFile(ii.getFile(), "r");
32 iif.setInput(raf);
33 } else {
34 return null;
35 }
36 iif.setCollectComments(false);
37 iif.setDetermineImageNumber(false);
38 // try with ImageInfo first
39 if (iif.check()) {
40 ImageSize d = new ImageSize(iif.getWidth(), iif.getHeight());
41 ii.setSize(d);
42 ii.setMimetype(iif.getMimeType());
43 logger.debug("image size: " + ii.getSize());
44 return ii;
45 }
46 } catch (Exception e) {
47 logger.debug("ImageInfoDocuimage unable to identify.", e);
48 } finally {
49 // close file, don't close stream(?)
50 if (raf != null) {
51 raf.close();
52 }
53 }
54 return null;
55 }
56
57
58 }