1 | // License: GPL. For details, see LICENSE file.
|
---|
2 | package org.openstreetmap.josm.data.gpx;
|
---|
3 |
|
---|
4 | import java.util.ArrayList;
|
---|
5 | import java.util.Collection;
|
---|
6 | import java.util.Objects;
|
---|
7 | import java.util.Optional;
|
---|
8 | import java.util.Stack;
|
---|
9 | import java.util.stream.Collectors;
|
---|
10 | import java.util.stream.Stream;
|
---|
11 |
|
---|
12 | import org.apache.commons.jcs3.access.exception.InvalidArgumentException;
|
---|
13 | import org.openstreetmap.josm.io.GpxReader;
|
---|
14 | import org.xml.sax.Attributes;
|
---|
15 |
|
---|
16 | /**
|
---|
17 | * Class extending <code>ArrayList<GpxExtension></code>.
|
---|
18 | * Can be used to collect {@link GpxExtension}s while reading GPX files, see {@link GpxReader}
|
---|
19 | * @since 15496
|
---|
20 | */
|
---|
21 | public class GpxExtensionCollection extends ArrayList<GpxExtension> {
|
---|
22 |
|
---|
23 | private static final long serialVersionUID = 1L;
|
---|
24 |
|
---|
25 | private Stack<GpxExtension> childStack = new Stack<>();
|
---|
26 | private IWithAttributes parent;
|
---|
27 |
|
---|
28 | /**
|
---|
29 | * Constructs a new {@link GpxExtensionCollection}
|
---|
30 | */
|
---|
31 | public GpxExtensionCollection() {}
|
---|
32 |
|
---|
33 | /**
|
---|
34 | * Constructs a new {@link GpxExtensionCollection} with the given parent
|
---|
35 | * @param parent the parent extending {@link IWithAttributes}
|
---|
36 | */
|
---|
37 | public GpxExtensionCollection(IWithAttributes parent) {
|
---|
38 | this.parent = parent;
|
---|
39 | }
|
---|
40 |
|
---|
41 | /**
|
---|
42 | * Adds a child extension to the last extension and pushes it to the stack.
|
---|
43 | * @param namespaceURI the URI of the XML namespace, used to determine supported
|
---|
44 | * extensions (josm, gpxx, gpxd) regardless of the prefix.
|
---|
45 | * @param qName the qualified name of the XML element including prefix
|
---|
46 | * @param atts the attributes
|
---|
47 | */
|
---|
48 | public void openChild(String namespaceURI, String qName, Attributes atts) {
|
---|
49 | GpxExtension child = new GpxExtension(namespaceURI, qName, atts);
|
---|
50 | if (!childStack.isEmpty()) {
|
---|
51 | childStack.lastElement().getExtensions().add(child);
|
---|
52 | } else {
|
---|
53 | this.add(child);
|
---|
54 | }
|
---|
55 | childStack.add(child);
|
---|
56 | }
|
---|
57 |
|
---|
58 | /**
|
---|
59 | * Sets the value for the last child and pops it from the stack, so the next one will be added to its parent.
|
---|
60 | * The qualified name is verified.
|
---|
61 | * @param qName the qualified name
|
---|
62 | * @param value the value
|
---|
63 | */
|
---|
64 | public void closeChild(String qName, String value) {
|
---|
65 | if (childStack.isEmpty())
|
---|
66 | throw new InvalidArgumentException("Can't close child " + qName + ", no element in stack.");
|
---|
67 |
|
---|
68 | GpxExtension child = childStack.pop();
|
---|
69 |
|
---|
70 | String childQN = child.getQualifiedName();
|
---|
71 |
|
---|
72 | if (!childQN.equals(qName))
|
---|
73 | throw new InvalidArgumentException("Can't close child " + qName + ", must close " + childQN + " first.");
|
---|
74 |
|
---|
75 | child.setValue(value);
|
---|
76 | }
|
---|
77 |
|
---|
78 | @Override
|
---|
79 | public boolean add(GpxExtension gpx) {
|
---|
80 | gpx.setParent(parent);
|
---|
81 | return super.add(gpx);
|
---|
82 | }
|
---|
83 |
|
---|
84 | /**
|
---|
85 | * Creates and adds a new {@link GpxExtension} from the given parameters.
|
---|
86 | * @param prefix the prefix
|
---|
87 | * @param key the key/tag
|
---|
88 | * @return the added GpxExtension
|
---|
89 | */
|
---|
90 | public GpxExtension add(String prefix, String key) {
|
---|
91 | return add(prefix, key, null);
|
---|
92 | }
|
---|
93 |
|
---|
94 | /**
|
---|
95 | * Creates and adds a new {@link GpxExtension} from the given parameters.
|
---|
96 | * @param prefix the prefix
|
---|
97 | * @param key the key/tag
|
---|
98 | * @param value the value, can be <code>null</code>
|
---|
99 | * @return the added GpxExtension
|
---|
100 | */
|
---|
101 | public GpxExtension add(String prefix, String key, String value) {
|
---|
102 | GpxExtension gpx = new GpxExtension(prefix, key, value);
|
---|
103 | add(gpx);
|
---|
104 | return gpx;
|
---|
105 | }
|
---|
106 |
|
---|
107 | /**
|
---|
108 | * Creates and adds a new {@link GpxExtension}, if it hasn't been added yet. Shows it if it has.
|
---|
109 | * @param prefix the prefix
|
---|
110 | * @param key the key/tag
|
---|
111 | * @return the added or found GpxExtension
|
---|
112 | * @see GpxExtension#show()
|
---|
113 | */
|
---|
114 | public GpxExtension addIfNotPresent(String prefix, String key) {
|
---|
115 | GpxExtension gpx = get(prefix, key);
|
---|
116 | if (gpx != null) {
|
---|
117 | gpx.show();
|
---|
118 | return gpx;
|
---|
119 | }
|
---|
120 | return add(prefix, key);
|
---|
121 | }
|
---|
122 |
|
---|
123 | /**
|
---|
124 | * Creates and adds a new {@link GpxExtension} or updates its value and shows it if already present.
|
---|
125 | * @param prefix the prefix
|
---|
126 | * @param key the key/tag
|
---|
127 | * @param value the value
|
---|
128 | * @return the added or found GpxExtension
|
---|
129 | * @see GpxExtension#show()
|
---|
130 | */
|
---|
131 | public GpxExtension addOrUpdate(String prefix, String key, String value) {
|
---|
132 | GpxExtension gpx = get(prefix, key);
|
---|
133 | if (gpx != null) {
|
---|
134 | gpx.show();
|
---|
135 | gpx.setValue(value);
|
---|
136 | return gpx;
|
---|
137 | } else {
|
---|
138 | return add(prefix, key, value);
|
---|
139 | }
|
---|
140 | }
|
---|
141 |
|
---|
142 | @Override
|
---|
143 | public boolean addAll(Collection<? extends GpxExtension> extensions) {
|
---|
144 | extensions.forEach(e -> e.setParent(parent));
|
---|
145 | return super.addAll(extensions);
|
---|
146 | }
|
---|
147 |
|
---|
148 | /**
|
---|
149 | * Adds an extension from a flat chain without prefix, e.g. when converting from OSM
|
---|
150 | * @param chain the full key chain, e.g. ["extension", "gpxx", "TrackExtension", "DisplayColor"]
|
---|
151 | * @param value the value
|
---|
152 | */
|
---|
153 | public void addFlat(String[] chain, String value) {
|
---|
154 | if (chain.length >= 3 && "extension".equals(chain[0])) {
|
---|
155 | String prefix = "other".equals(chain[1]) ? "" : chain[1];
|
---|
156 | GpxExtensionCollection previous = this;
|
---|
157 | for (int i = 2; i < chain.length; i++) {
|
---|
158 | if (i != 2 || !"segment".equals(chain[2])) {
|
---|
159 | previous = previous.add(prefix, chain[i], i == chain.length - 1 ? value : null).getExtensions();
|
---|
160 | }
|
---|
161 | }
|
---|
162 | }
|
---|
163 | }
|
---|
164 |
|
---|
165 | /**
|
---|
166 | * Gets the extension with the given prefix and key
|
---|
167 | * @param prefix the prefix
|
---|
168 | * @param key the key/tag
|
---|
169 | * @return the {@link GpxExtension} if found or <code>null</code>
|
---|
170 | */
|
---|
171 | public GpxExtension get(String prefix, String key) {
|
---|
172 | return stream(prefix, key).findAny().orElse(null);
|
---|
173 | }
|
---|
174 |
|
---|
175 | /**
|
---|
176 | * Gets all extensions with the given prefix and key
|
---|
177 | * @param prefix the prefix
|
---|
178 | * @param key the key/tag
|
---|
179 | * @return a {@link GpxExtensionCollection} with the extensions, empty collection if none found
|
---|
180 | */
|
---|
181 | public GpxExtensionCollection getAll(String prefix, String key) {
|
---|
182 | GpxExtensionCollection copy = new GpxExtensionCollection(this.parent);
|
---|
183 | copy.addAll(stream(prefix, key).collect(Collectors.toList()));
|
---|
184 | return copy;
|
---|
185 | }
|
---|
186 |
|
---|
187 | /**
|
---|
188 | * Gets a stream with all extensions with the given prefix and key
|
---|
189 | * @param prefix the prefix
|
---|
190 | * @param key the key/tag
|
---|
191 | * @return the <code>Stream<{@link GpxExtension}></code>
|
---|
192 | */
|
---|
193 | public Stream<GpxExtension> stream(String prefix, String key) {
|
---|
194 | return stream().filter(e -> Objects.equals(prefix, e.getPrefix()) && Objects.equals(key, e.getKey()));
|
---|
195 | }
|
---|
196 |
|
---|
197 | /**
|
---|
198 | * Searches recursively for the extension with the given prefix and key in all children
|
---|
199 | * @param prefix the prefix to look for
|
---|
200 | * @param key the key to look for
|
---|
201 | * @return the extension if found, otherwise <code>null</code>
|
---|
202 | */
|
---|
203 | public GpxExtension find(String prefix, String key) {
|
---|
204 | for (GpxExtension child : this) {
|
---|
205 | GpxExtension ext = child.findExtension(prefix, key);
|
---|
206 | if (ext != null) {
|
---|
207 | return ext;
|
---|
208 | }
|
---|
209 | }
|
---|
210 | return null;
|
---|
211 | }
|
---|
212 |
|
---|
213 | /**
|
---|
214 | * Searches and removes recursively all extensions with the given prefix and key in all children
|
---|
215 | * @param prefix the prefix to look for
|
---|
216 | * @param key the key to look for
|
---|
217 | */
|
---|
218 | public void findAndRemove(String prefix, String key) {
|
---|
219 | Optional.ofNullable(find(prefix, key)).ifPresent(GpxExtension::remove);
|
---|
220 | }
|
---|
221 |
|
---|
222 | /**
|
---|
223 | * Removes all {@link GpxExtension}s with the given prefix and key in direct children
|
---|
224 | * @param prefix the prefix
|
---|
225 | * @param key the key/tag
|
---|
226 | */
|
---|
227 | public void remove(String prefix, String key) {
|
---|
228 | stream(prefix, key)
|
---|
229 | .collect(Collectors.toList()) //needs to be collected to avoid concurrent modification
|
---|
230 | .forEach(e -> super.remove(e));
|
---|
231 | }
|
---|
232 |
|
---|
233 | /**
|
---|
234 | * Removes all extensions with the given prefix in direct children
|
---|
235 | * @param prefix the prefix
|
---|
236 | */
|
---|
237 | public void removeAllWithPrefix(String prefix) {
|
---|
238 | stream()
|
---|
239 | .filter(e -> Objects.equals(prefix, e.getPrefix()))
|
---|
240 | .collect(Collectors.toList()) //needs to be collected to avoid concurrent modification
|
---|
241 | .forEach(e -> super.remove(e));
|
---|
242 | }
|
---|
243 |
|
---|
244 | /**
|
---|
245 | * Gets all prefixes of direct (writable) children
|
---|
246 | * @return stream with the prefixes
|
---|
247 | */
|
---|
248 | public Stream<String> getPrefixesStream() {
|
---|
249 | return stream()
|
---|
250 | .filter(GpxExtension::isVisible)
|
---|
251 | .map(GpxExtension::getPrefix)
|
---|
252 | .distinct();
|
---|
253 | }
|
---|
254 |
|
---|
255 | /**
|
---|
256 | * @return <code>true</code> if this collection contains writable extensions
|
---|
257 | */
|
---|
258 | public boolean isVisible() {
|
---|
259 | return stream().anyMatch(GpxExtension::isVisible);
|
---|
260 | }
|
---|
261 |
|
---|
262 | @Override
|
---|
263 | public void clear() {
|
---|
264 | childStack.clear();
|
---|
265 | super.clear();
|
---|
266 | }
|
---|
267 |
|
---|
268 | }
|
---|