1 /**
2 * Copyright (c) 2011, The University of Southampton and the individual contributors.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * * Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 *
11 * * Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * * Neither the name of the University of Southampton nor the names of its
16 * contributors may be used to endorse or promote products derived from this
17 * software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
21 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
23 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
26 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30 package org.openimaj.tools.imagecollection.collection.webpage;
31
32 import java.io.IOException;
33 import java.net.URL;
34 import java.util.Iterator;
35 import java.util.Map;
36 import java.util.Set;
37
38 import org.openimaj.image.ImageUtilities;
39 import org.openimaj.image.MBFImage;
40 import org.openimaj.tools.imagecollection.collection.ImageCollectionEntry;
41 import org.openimaj.tools.imagecollection.collection.ImageCollectionEntrySelection;
42 import org.openimaj.util.pair.IndependentPair;
43
44 public class URLImageIterator implements Iterator<ImageCollectionEntry<MBFImage>> {
45
46 private Iterator<IndependentPair<URL, Map<String, String>>> imageList;
47 private ImageCollectionEntrySelection<MBFImage> selection;
48
49 public URLImageIterator(Set<IndependentPair<URL, Map<String, String>>> imageList2, ImageCollectionEntrySelection<MBFImage> selection) {
50 this.imageList = imageList2.iterator();
51 this.selection = selection;
52 }
53
54 @Override
55 public boolean hasNext() {
56 return imageList.hasNext();
57 }
58
59 @Override
60 public ImageCollectionEntry<MBFImage> next() {
61 IndependentPair<URL, Map<String, String>> urlMeta = imageList.next();
62 URL u = urlMeta.firstObject();
63 try {
64 MBFImage image = ImageUtilities.readMBF(u.openConnection().getInputStream());
65 ImageCollectionEntry<MBFImage> entry = new ImageCollectionEntry<MBFImage>();
66 entry.image = image;
67 entry.meta = urlMeta.secondObject();
68 entry.accepted = true;
69 if(this.selection!=null) entry.accepted = selection.acceptEntry(image);
70 return entry;
71 } catch (IOException e) {
72 }
73 return null;
74 }
75
76 @Override
77 public void remove() {
78 this.imageList.remove();
79 }
80
81 }