|
1
|
/**
|
|
2
|
* Copyright (C) 2020 EDIT
|
|
3
|
* European Distributed Institute of Taxonomy
|
|
4
|
* http://www.e-taxonomy.eu
|
|
5
|
*
|
|
6
|
* The contents of this file are subject to the Mozilla Public License Version 1.1
|
|
7
|
* See LICENSE.TXT at the top of this package for the full license terms.
|
|
8
|
*/
|
|
9
|
package eu.etaxonomy.cdm.api.service.media;
|
|
10
|
|
|
11
|
import java.awt.Point;
|
|
12
|
import java.net.URI;
|
|
13
|
import java.net.URISyntaxException;
|
|
14
|
import java.util.ArrayList;
|
|
15
|
import java.util.Collection;
|
|
16
|
import java.util.List;
|
|
17
|
import java.util.regex.Matcher;
|
|
18
|
|
|
19
|
import org.apache.log4j.Logger;
|
|
20
|
|
|
21
|
import eu.etaxonomy.cdm.model.media.ImageFile;
|
|
22
|
import eu.etaxonomy.cdm.model.media.MediaRepresentation;
|
|
23
|
import eu.etaxonomy.cdm.model.media.MediaRepresentationPart;
|
|
24
|
import eu.etaxonomy.cdm.model.metadata.PreferencePredicate;
|
|
25
|
|
|
26
|
/**
|
|
27
|
* Creates new purely volatile {@link MediaRepresentation MediaRepresentations} objects based on
|
|
28
|
* a list of {@link MediaUriTransformation} rules. These rules are usually stored in the
|
|
29
|
* per data base {@link PreferencePredicate.MediaRepresentationTransformations MediaRepresentationTransformations} property
|
|
30
|
* (See also {@link MediaToolbox#readTransformations()}).
|
|
31
|
* <p>
|
|
32
|
* These volatile {@link MediaRepresentation MediaRepresentations} objects must not be persisted!
|
|
33
|
*
|
|
34
|
* @author a.kohlbecker
|
|
35
|
* @since Jul 8, 2020
|
|
36
|
*/
|
|
37
|
public class MediaUriTransformationProcessor {
|
|
38
|
|
|
39
|
private static final Logger logger = Logger.getLogger(MediaUriTransformationProcessor.class);
|
|
40
|
|
|
41
|
private List<MediaUriTransformation> transformations = new ArrayList<>();
|
|
42
|
|
|
43
|
public void add(MediaUriTransformation transformation) {
|
|
44
|
transformations.add(transformation);
|
|
45
|
}
|
|
46
|
|
|
47
|
public void addAll(Collection<MediaUriTransformation> trans) {
|
|
48
|
transformations.addAll(trans);
|
|
49
|
}
|
|
50
|
|
|
51
|
public List<URI> applyTo(URI uri) {
|
|
52
|
|
|
53
|
logger.debug("original: " + uri.toString());
|
|
54
|
String pathQueryFragment = buildPathQueryFragment(uri);
|
|
55
|
|
|
56
|
List<URI> newUris = new ArrayList<>();
|
|
57
|
for (MediaUriTransformation transformation : transformations) {
|
|
58
|
|
|
59
|
try {
|
|
60
|
URI newUri = uriTransformation(uri, pathQueryFragment, transformation);
|
|
61
|
newUris.add(newUri);
|
|
62
|
} catch (URISyntaxException e) {
|
|
63
|
logger.error(e);
|
|
64
|
}
|
|
65
|
}
|
|
66
|
|
|
67
|
return newUris;
|
|
68
|
}
|
|
69
|
|
|
70
|
protected URI uriTransformation(URI uri, String pathQueryFragment, MediaUriTransformation replacement)
|
|
71
|
throws URISyntaxException {
|
|
72
|
|
|
73
|
String newScheme = uri.getScheme();
|
|
74
|
String newHost = uri.getHost();
|
|
75
|
int newPort = uri.getPort();
|
|
76
|
String newPathQueryFragment = pathQueryFragment;
|
|
77
|
|
|
78
|
boolean isMatch = true;
|
|
79
|
// replace the parts
|
|
80
|
if (replacement.getScheme() != null) {
|
|
81
|
Matcher m = replacement.getScheme().searchPattern().matcher(newScheme);
|
|
82
|
isMatch &= m.find();
|
|
83
|
newScheme = m.replaceAll(replacement.getScheme().getReplace());
|
|
84
|
}
|
|
85
|
if (replacement.getHost() != null) {
|
|
86
|
Matcher m = replacement.getHost().searchPattern().matcher(newHost);
|
|
87
|
isMatch &= m.find();
|
|
88
|
newHost = m.replaceAll(replacement.getHost().getReplace());
|
|
89
|
}
|
|
90
|
// TODO port
|
|
91
|
|
|
92
|
if (replacement.getPathQueryFragment() != null) {
|
|
93
|
Matcher m = replacement.getPathQueryFragment().searchPattern().matcher(newPathQueryFragment);
|
|
94
|
isMatch &= m.find();
|
|
95
|
newPathQueryFragment = m.replaceAll(replacement.getPathQueryFragment().getReplace());
|
|
96
|
}
|
|
97
|
if (isMatch) {
|
|
98
|
// recombine
|
|
99
|
String newURIString = newScheme + "://" + newHost + (newPort > 0 ? ":" + String.valueOf(newPort) : "")
|
|
100
|
+ newPathQueryFragment;
|
|
101
|
|
|
102
|
URI newUri = new URI(newURIString);
|
|
103
|
logger.debug("transformed: " + newUri.toString());
|
|
104
|
return newUri;
|
|
105
|
} else {
|
|
106
|
return uri;
|
|
107
|
}
|
|
108
|
}
|
|
109
|
|
|
110
|
protected String buildPathQueryFragment(URI uri) {
|
|
111
|
String pathQueryFragment = uri.getPath();
|
|
112
|
if (uri.getQuery() != null) {
|
|
113
|
pathQueryFragment += "?" + uri.getQuery();
|
|
114
|
}
|
|
115
|
if (uri.getFragment() != null) {
|
|
116
|
pathQueryFragment += "#" + uri.getFragment();
|
|
117
|
}
|
|
118
|
return pathQueryFragment;
|
|
119
|
}
|
|
120
|
|
|
121
|
@Deprecated
|
|
122
|
public List<MediaRepresentation> makeNewMediaRepresentationsFor(URI uri) {
|
|
123
|
|
|
124
|
List<MediaRepresentation> repr = new ArrayList<>();
|
|
125
|
|
|
126
|
String pathQueryFragment = buildPathQueryFragment(uri);
|
|
127
|
|
|
128
|
for (MediaUriTransformation transformation : transformations) {
|
|
129
|
|
|
130
|
try {
|
|
131
|
URI newUri = uriTransformation(uri, pathQueryFragment, transformation);
|
|
132
|
MediaRepresentation mRepresentation = MediaRepresentation.NewInstance(transformation.getMimeType(),
|
|
133
|
null);
|
|
134
|
MediaRepresentationPart part;
|
|
135
|
if (transformation.getMimeType() != null && transformation.getMimeType().startsWith("image/")) {
|
|
136
|
part = ImageFile.NewInstance(newUri, null, transformation.getHeight(), transformation.getWidth());
|
|
137
|
} else {
|
|
138
|
part = MediaRepresentationPart.NewInstance(newUri, null);
|
|
139
|
}
|
|
140
|
mRepresentation.addRepresentationPart(part);
|
|
141
|
repr.add(mRepresentation);
|
|
142
|
|
|
143
|
} catch (URISyntaxException e) {
|
|
144
|
logger.error(e);
|
|
145
|
}
|
|
146
|
}
|
|
147
|
|
|
148
|
return repr;
|
|
149
|
}
|
|
150
|
|
|
151
|
public List<MediaRepresentation> makeNewMediaRepresentationsFor(MediaRepresentationPart part) {
|
|
152
|
|
|
153
|
List<MediaRepresentation> repr = new ArrayList<>();
|
|
154
|
|
|
155
|
String pathQueryFragment = buildPathQueryFragment(part.getUri());
|
|
156
|
|
|
157
|
for (MediaUriTransformation transformation : transformations) {
|
|
158
|
|
|
159
|
try {
|
|
160
|
URI newUri = uriTransformation(part.getUri(), pathQueryFragment, transformation);
|
|
161
|
if (newUri.equals(part.getUri())) {
|
|
162
|
// transformation did not apply
|
|
163
|
continue;
|
|
164
|
}
|
|
165
|
MediaRepresentation mRepresentation = MediaRepresentation.NewInstance(transformation.getMimeType(),
|
|
166
|
null);
|
|
167
|
MediaRepresentationPart newPart;
|
|
168
|
if (transformation.getMimeType() != null && transformation.getMimeType().startsWith("image/")) {
|
|
169
|
if (part instanceof ImageFile) {
|
|
170
|
ImageFile originalImageFile = (ImageFile) part;
|
|
171
|
Point newSize = calculateTargetSize(transformation, originalImageFile.getWidth(),
|
|
172
|
originalImageFile.getHeight());
|
|
173
|
newPart = ImageFile.NewInstance(newUri, null, newSize.y, newSize.x);
|
|
174
|
} else {
|
|
175
|
newPart = ImageFile.NewInstance(newUri, null, transformation.getHeight(),
|
|
176
|
transformation.getWidth());
|
|
177
|
}
|
|
178
|
} else {
|
|
179
|
newPart = MediaRepresentationPart.NewInstance(newUri, null);
|
|
180
|
}
|
|
181
|
mRepresentation.addRepresentationPart(newPart);
|
|
182
|
repr.add(mRepresentation);
|
|
183
|
|
|
184
|
} catch (URISyntaxException e) {
|
|
185
|
logger.error(e);
|
|
186
|
}
|
|
187
|
}
|
|
188
|
|
|
189
|
return repr;
|
|
190
|
}
|
|
191
|
|
|
192
|
protected Point calculateTargetSize(MediaUriTransformation trans, Integer originalWidth, Integer originalHeight) {
|
|
193
|
|
|
194
|
if (trans.getWidth() == null && trans.getHeight() == null) {
|
|
195
|
return null;
|
|
196
|
} else if (originalWidth == null || originalHeight == null) {
|
|
197
|
return new Point(trans.getWidth(), trans.getHeight());
|
|
198
|
} else {
|
|
199
|
if(trans.getHeight() != null && trans.getWidth() != null && !trans.getHeight().equals(trans.getWidth())) {
|
|
200
|
return new Point(trans.getWidth(), trans.getHeight());
|
|
201
|
} else {
|
|
202
|
// calculate
|
|
203
|
float originalAspectRatio = ((float) originalWidth / (float) originalHeight);
|
|
204
|
|
|
205
|
boolean widthIsLimiting = trans.getHeight() == null ||
|
|
206
|
trans.getWidth() != null && trans.getHeight() * originalAspectRatio > trans.getWidth() ;
|
|
207
|
if (widthIsLimiting){
|
|
208
|
return new Point(trans.getWidth(), Math.round(trans.getWidth() / originalAspectRatio ));
|
|
209
|
} else {
|
|
210
|
return new Point(Math.round(trans.getHeight() * originalAspectRatio), trans.getHeight());
|
|
211
|
}
|
|
212
|
}
|
|
213
|
}
|
|
214
|
}
|
|
215
|
}
|