source: josm/trunk/src/org/openstreetmap/josm/data/imagery/WMTSTileSource.java@ 11330

Last change on this file since 11330 was 11330, checked in by Don-vip, 7 years ago

sonar - fix recent issues
  • Property svn:eol-style set to native
File size: 36.4 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.data.imagery;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.awt.GridBagLayout;
7import java.awt.Point;
8import java.io.ByteArrayInputStream;
9import java.io.IOException;
10import java.io.InputStream;
11import java.nio.charset.StandardCharsets;
12import java.util.ArrayList;
13import java.util.Collection;
14import java.util.Collections;
15import java.util.HashSet;
16import java.util.List;
17import java.util.Map;
18import java.util.Map.Entry;
19import java.util.Set;
20import java.util.SortedSet;
21import java.util.Stack;
22import java.util.TreeSet;
23import java.util.concurrent.ConcurrentHashMap;
24import java.util.regex.Matcher;
25import java.util.regex.Pattern;
26import java.util.stream.Collectors;
27
28import javax.swing.JPanel;
29import javax.swing.JScrollPane;
30import javax.swing.JTable;
31import javax.swing.ListSelectionModel;
32import javax.swing.table.AbstractTableModel;
33import javax.xml.namespace.QName;
34import javax.xml.stream.XMLStreamException;
35import javax.xml.stream.XMLStreamReader;
36
37import org.openstreetmap.gui.jmapviewer.Coordinate;
38import org.openstreetmap.gui.jmapviewer.Tile;
39import org.openstreetmap.gui.jmapviewer.TileXY;
40import org.openstreetmap.gui.jmapviewer.interfaces.ICoordinate;
41import org.openstreetmap.gui.jmapviewer.interfaces.TemplatedTileSource;
42import org.openstreetmap.gui.jmapviewer.tilesources.AbstractTMSTileSource;
43import org.openstreetmap.josm.Main;
44import org.openstreetmap.josm.data.coor.EastNorth;
45import org.openstreetmap.josm.data.coor.LatLon;
46import org.openstreetmap.josm.data.projection.Projection;
47import org.openstreetmap.josm.data.projection.Projections;
48import org.openstreetmap.josm.gui.ExtendedDialog;
49import org.openstreetmap.josm.gui.layer.NativeScaleLayer.ScaleList;
50import org.openstreetmap.josm.io.CachedFile;
51import org.openstreetmap.josm.tools.CheckParameterUtil;
52import org.openstreetmap.josm.tools.GBC;
53import org.openstreetmap.josm.tools.Utils;
54
55/**
56 * Tile Source handling WMS providers
57 *
58 * @author Wiktor Niesiobędzki
59 * @since 8526
60 */
61public class WMTSTileSource extends AbstractTMSTileSource implements TemplatedTileSource {
62 /**
63 * WMTS namespace address
64 */
65 public static final String WMTS_NS_URL = "http://www.opengis.net/wmts/1.0";
66
67 // CHECKSTYLE.OFF: SingleSpaceSeparator
68 private static final QName QN_CONTENTS = new QName(WMTSTileSource.WMTS_NS_URL, "Contents");
69 private static final QName QN_FORMAT = new QName(WMTSTileSource.WMTS_NS_URL, "Format");
70 private static final QName QN_LAYER = new QName(WMTSTileSource.WMTS_NS_URL, "Layer");
71 private static final QName QN_MATRIX_WIDTH = new QName(WMTSTileSource.WMTS_NS_URL, "MatrixWidth");
72 private static final QName QN_MATRIX_HEIGHT = new QName(WMTSTileSource.WMTS_NS_URL, "MatrixHeight");
73 private static final QName QN_RESOURCE_URL = new QName(WMTSTileSource.WMTS_NS_URL, "ResourceURL");
74 private static final QName QN_SCALE_DENOMINATOR = new QName(WMTSTileSource.WMTS_NS_URL, "ScaleDenominator");
75 private static final QName QN_STYLE = new QName(WMTSTileSource.WMTS_NS_URL, "Style");
76 private static final QName QN_TILEMATRIX = new QName(WMTSTileSource.WMTS_NS_URL, "TileMatrix");
77 private static final QName QN_TILEMATRIXSET = new QName(WMTSTileSource.WMTS_NS_URL, "TileMatrixSet");
78 private static final QName QN_TILEMATRIX_SET_LINK = new QName(WMTSTileSource.WMTS_NS_URL, "TileMatrixSetLink");
79 private static final QName QN_TILE_WIDTH = new QName(WMTSTileSource.WMTS_NS_URL, "TileWidth");
80 private static final QName QN_TILE_HEIGHT = new QName(WMTSTileSource.WMTS_NS_URL, "TileHeight");
81 private static final QName QN_TOPLEFT_CORNER = new QName(WMTSTileSource.WMTS_NS_URL, "TopLeftCorner");
82 // CHECKSTYLE.ON: SingleSpaceSeparator
83
84 private static final String PATTERN_HEADER = "\\{header\\(([^,]+),([^}]+)\\)\\}";
85
86 private static final String URL_GET_ENCODING_PARAMS = "SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER={layer}&STYLE={style}&"
87 + "FORMAT={format}&tileMatrixSet={TileMatrixSet}&tileMatrix={TileMatrix}&tileRow={TileRow}&tileCol={TileCol}";
88
89 private static final String[] ALL_PATTERNS = {
90 PATTERN_HEADER,
91 };
92
93 private static class TileMatrix {
94 private String identifier;
95 private double scaleDenominator;
96 private EastNorth topLeftCorner;
97 private int tileWidth;
98 private int tileHeight;
99 private int matrixWidth = -1;
100 private int matrixHeight = -1;
101 }
102
103 private static class TileMatrixSetBuilder {
104 // sorted by zoom level
105 SortedSet<TileMatrix> tileMatrix = new TreeSet<>((o1, o2) -> -1 * Double.compare(o1.scaleDenominator, o2.scaleDenominator));
106 private String crs;
107 private String identifier;
108
109 TileMatrixSet build() {
110 return new TileMatrixSet(this);
111 }
112 }
113
114 private static class TileMatrixSet {
115
116 private final List<TileMatrix> tileMatrix;
117 private final String crs;
118 private final String identifier;
119
120 TileMatrixSet(TileMatrixSet tileMatrixSet) {
121 if (tileMatrixSet != null) {
122 tileMatrix = new ArrayList<>(tileMatrixSet.tileMatrix);
123 crs = tileMatrixSet.crs;
124 identifier = tileMatrixSet.identifier;
125 } else {
126 tileMatrix = Collections.emptyList();
127 crs = null;
128 identifier = null;
129 }
130 }
131
132 TileMatrixSet(TileMatrixSetBuilder builder) {
133 tileMatrix = new ArrayList<>(builder.tileMatrix);
134 crs = builder.crs;
135 identifier = builder.identifier;
136 }
137
138 }
139
140 private static class Layer {
141 private String format;
142 private String name;
143 private TileMatrixSet tileMatrixSet;
144 private String baseUrl;
145 private String style;
146 private final Collection<String> tileMatrixSetLinks = new ArrayList<>();
147
148 Layer(Layer l) {
149 if (l != null) {
150 format = l.format;
151 name = l.name;
152 baseUrl = l.baseUrl;
153 style = l.style;
154 tileMatrixSet = new TileMatrixSet(l.tileMatrixSet);
155 }
156 }
157
158 Layer() {
159 }
160 }
161
162 private static final class SelectLayerDialog extends ExtendedDialog {
163 private final transient List<Entry<String, List<Layer>>> layers;
164 private final JTable list;
165
166 SelectLayerDialog(Collection<Layer> layers) {
167 super(Main.parent, tr("Select WMTS layer"), new String[]{tr("Add layers"), tr("Cancel")});
168 this.layers = groupLayersByName(layers);
169 //getLayersTable(layers, Main.getProjection())
170 this.list = new JTable(
171 new AbstractTableModel() {
172 @Override
173 public Object getValueAt(int rowIndex, int columnIndex) {
174 switch (columnIndex) {
175 case 0:
176 return SelectLayerDialog.this.layers.get(rowIndex).getValue()
177 .stream()
178 .map(x -> x.name)
179 .collect(Collectors.joining(", ")); //this should be only one
180 case 1:
181 return SelectLayerDialog.this.layers.get(rowIndex).getValue()
182 .stream()
183 .map(x -> x.tileMatrixSet.crs)
184 .collect(Collectors.joining(", "));
185 case 2:
186 return SelectLayerDialog.this.layers.get(rowIndex).getValue()
187 .stream()
188 .map(x -> x.tileMatrixSet.identifier)
189 .collect(Collectors.joining(", ")); //this should be only one
190 default:
191 throw new IllegalArgumentException();
192 }
193 }
194
195 @Override
196 public int getRowCount() {
197 return SelectLayerDialog.this.layers.size();
198 }
199
200 @Override
201 public int getColumnCount() {
202 return 3;
203 }
204
205 @Override
206 public String getColumnName(int column) {
207 switch (column) {
208 case 0: return tr("Layer name");
209 case 1: return tr("Projection");
210 case 2: return tr("Matrix set identifier");
211 default:
212 throw new IllegalArgumentException();
213 }
214 }
215
216 @Override
217 public boolean isCellEditable(int row, int column) {
218 return false;
219 }
220 });
221 this.list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
222 this.list.setRowSelectionAllowed(true);
223 this.list.setColumnSelectionAllowed(false);
224 JPanel panel = new JPanel(new GridBagLayout());
225 panel.add(new JScrollPane(this.list), GBC.eol().fill());
226 setContent(panel);
227 }
228
229 public DefaultLayer getSelectedLayer() {
230 int index = list.getSelectedRow();
231 if (index < 0) {
232 return null; //nothing selected
233 }
234 Layer selectedLayer = layers.get(index).getValue().iterator().next();
235 return new WMTSDefaultLayer(selectedLayer.name, selectedLayer.tileMatrixSet.identifier);
236 }
237 }
238
239 private final Map<String, String> headers = new ConcurrentHashMap<>();
240 private final Collection<Layer> layers;
241 private Layer currentLayer;
242 private TileMatrixSet currentTileMatrixSet;
243 private double crsScale;
244 private GetCapabilitiesParseHelper.TransferMode transferMode;
245
246 private ScaleList nativeScaleList;
247
248 private final WMTSDefaultLayer defaultLayer;
249
250
251 /**
252 * Creates a tile source based on imagery info
253 * @param info imagery info
254 * @throws IOException if any I/O error occurs
255 * @throws IllegalArgumentException if any other error happens for the given imagery info
256 */
257 public WMTSTileSource(ImageryInfo info) throws IOException {
258 super(info);
259 CheckParameterUtil.ensureThat(info.getDefaultLayers().size() < 2, "At most 1 default layer for WMTS is supported");
260
261 this.baseUrl = GetCapabilitiesParseHelper.normalizeCapabilitiesUrl(handleTemplate(info.getUrl()));
262 this.layers = getCapabilities();
263 this.defaultLayer = info.getDefaultLayers().isEmpty() ? null : (WMTSDefaultLayer) info.getDefaultLayers().iterator().next();
264 if (this.layers.isEmpty())
265 throw new IllegalArgumentException(tr("No layers defined by getCapabilities document: {0}", info.getUrl()));
266 }
267
268 /**
269 * Creates a dialog based on this tile source with all available layers and returns the name of selected layer
270 * @return Name of selected layer
271 */
272 public DefaultLayer userSelectLayer() {
273 Collection<Entry<String, List<Layer>>> grouppedLayers = groupLayersByName(layers);
274
275 // if there is only one layer name no point in asking
276 if (grouppedLayers.size() == 1) {
277 Layer selectedLayer = grouppedLayers.iterator().next().getValue().iterator().next();
278 return new WMTSDefaultLayer(selectedLayer.name, selectedLayer.tileMatrixSet.identifier);
279 }
280
281 final SelectLayerDialog layerSelection = new SelectLayerDialog(layers);
282 if (layerSelection.showDialog().getValue() == 1) {
283 return layerSelection.getSelectedLayer();
284 }
285 return null;
286 }
287
288 private String handleTemplate(String url) {
289 Pattern pattern = Pattern.compile(PATTERN_HEADER);
290 StringBuffer output = new StringBuffer();
291 Matcher matcher = pattern.matcher(url);
292 while (matcher.find()) {
293 this.headers.put(matcher.group(1), matcher.group(2));
294 matcher.appendReplacement(output, "");
295 }
296 matcher.appendTail(output);
297 return output.toString();
298 }
299
300 private static List<Entry<String, List<Layer>>> groupLayersByName(Collection<Layer> layers) {
301 Map<String, List<Layer>> layerByName = layers.stream().collect(
302 Collectors.groupingBy(x -> x.name + '\u001c' + x.tileMatrixSet.identifier));
303 return layerByName.entrySet().stream().sorted(Map.Entry.comparingByKey()).collect(Collectors.toList());
304 }
305
306 /**
307 * @return capabilities
308 * @throws IOException in case of any I/O error
309 * @throws IllegalArgumentException in case of any other error
310 */
311 private Collection<Layer> getCapabilities() throws IOException {
312 try (CachedFile cf = new CachedFile(baseUrl); InputStream in = cf.setHttpHeaders(headers).
313 setMaxAge(7 * CachedFile.DAYS).
314 setCachingStrategy(CachedFile.CachingStrategy.IfModifiedSince).
315 getInputStream()) {
316 byte[] data = Utils.readBytesFromStream(in);
317 if (data.length == 0) {
318 cf.clear();
319 throw new IllegalArgumentException("Could not read data from: " + baseUrl);
320 }
321
322 try {
323 XMLStreamReader reader = GetCapabilitiesParseHelper.getReader(new ByteArrayInputStream(data));
324 Collection<Layer> ret = new ArrayList<>();
325 for (int event = reader.getEventType(); reader.hasNext(); event = reader.next()) {
326 if (event == XMLStreamReader.START_ELEMENT) {
327 if (GetCapabilitiesParseHelper.QN_OWS_OPERATIONS_METADATA.equals(reader.getName())) {
328 parseOperationMetadata(reader);
329 }
330
331 if (QN_CONTENTS.equals(reader.getName())) {
332 ret = parseContents(reader);
333 }
334 }
335 }
336 return ret;
337 } catch (XMLStreamException e) {
338 cf.clear();
339 Main.warn(new String(data, StandardCharsets.UTF_8));
340 throw new IllegalArgumentException(e);
341 }
342 }
343 }
344
345 /**
346 * Parse Contents tag. Returns when reader reaches Contents closing tag
347 *
348 * @param reader StAX reader instance
349 * @return collection of layers within contents with properly linked TileMatrixSets
350 * @throws XMLStreamException See {@link XMLStreamReader}
351 */
352 private static Collection<Layer> parseContents(XMLStreamReader reader) throws XMLStreamException {
353 Map<String, TileMatrixSet> matrixSetById = new ConcurrentHashMap<>();
354 Collection<Layer> layers = new ArrayList<>();
355 for (int event = reader.getEventType();
356 reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_CONTENTS.equals(reader.getName()));
357 event = reader.next()) {
358 if (event == XMLStreamReader.START_ELEMENT) {
359 if (QN_LAYER.equals(reader.getName())) {
360 layers.add(parseLayer(reader));
361 }
362 if (QN_TILEMATRIXSET.equals(reader.getName())) {
363 TileMatrixSet entry = parseTileMatrixSet(reader);
364 matrixSetById.put(entry.identifier, entry);
365 }
366 }
367 }
368 Collection<Layer> ret = new ArrayList<>();
369 // link layers to matrix sets
370 for (Layer l: layers) {
371 for (String tileMatrixId: l.tileMatrixSetLinks) {
372 Layer newLayer = new Layer(l); // create a new layer object for each tile matrix set supported
373 newLayer.tileMatrixSet = matrixSetById.get(tileMatrixId);
374 ret.add(newLayer);
375 }
376 }
377 return ret;
378 }
379
380 /**
381 * Parse Layer tag. Returns when reader will reach Layer closing tag
382 *
383 * @param reader StAX reader instance
384 * @return Layer object, with tileMatrixSetLinks and no tileMatrixSet attribute set.
385 * @throws XMLStreamException See {@link XMLStreamReader}
386 */
387 private static Layer parseLayer(XMLStreamReader reader) throws XMLStreamException {
388 Layer layer = new Layer();
389 Stack<QName> tagStack = new Stack<>();
390
391 for (int event = reader.getEventType();
392 reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_LAYER.equals(reader.getName()));
393 event = reader.next()) {
394 if (event == XMLStreamReader.START_ELEMENT) {
395 tagStack.push(reader.getName());
396 if (tagStack.size() == 2) {
397 if (QN_FORMAT.equals(reader.getName())) {
398 layer.format = reader.getElementText();
399 } else if (GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER.equals(reader.getName())) {
400 layer.name = reader.getElementText();
401 } else if (QN_RESOURCE_URL.equals(reader.getName()) &&
402 "tile".equals(reader.getAttributeValue("", "resourceType"))) {
403 layer.baseUrl = reader.getAttributeValue("", "template");
404 } else if (QN_STYLE.equals(reader.getName()) &&
405 "true".equals(reader.getAttributeValue("", "isDefault"))) {
406 if (GetCapabilitiesParseHelper.moveReaderToTag(reader, new QName[] {GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER})) {
407 layer.style = reader.getElementText();
408 tagStack.push(reader.getName()); // keep tagStack in sync
409 }
410 } else if (QN_TILEMATRIX_SET_LINK.equals(reader.getName())) {
411 layer.tileMatrixSetLinks.add(praseTileMatrixSetLink(reader));
412 } else {
413 GetCapabilitiesParseHelper.moveReaderToEndCurrentTag(reader);
414 }
415 }
416 }
417 // need to get event type from reader, as parsing might have change position of reader
418 if (reader.getEventType() == XMLStreamReader.END_ELEMENT) {
419 QName start = tagStack.pop();
420 if (!start.equals(reader.getName())) {
421 throw new IllegalStateException(tr("WMTS Parser error - start element {0} has different name than end element {2}",
422 start, reader.getName()));
423 }
424 }
425 }
426 if (layer.style == null) {
427 layer.style = "";
428 }
429 return layer;
430 }
431
432 /**
433 * Gets TileMatrixSetLink value. Returns when reader is on TileMatrixSetLink closing tag
434 *
435 * @param reader StAX reader instance
436 * @return TileMatrixSetLink identifier
437 * @throws XMLStreamException See {@link XMLStreamReader}
438 */
439 private static String praseTileMatrixSetLink(XMLStreamReader reader) throws XMLStreamException {
440 String ret = null;
441 for (int event = reader.getEventType();
442 reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT &&
443 QN_TILEMATRIX_SET_LINK.equals(reader.getName()));
444 event = reader.next()) {
445 if (event == XMLStreamReader.START_ELEMENT && QN_TILEMATRIXSET.equals(reader.getName())) {
446 ret = reader.getElementText();
447 }
448 }
449 return ret;
450 }
451
452 /**
453 * Parses TileMatrixSet section. Returns when reader is on TileMatrixSet closing tag
454 * @param reader StAX reader instance
455 * @return TileMatrixSet object
456 * @throws XMLStreamException See {@link XMLStreamReader}
457 */
458 private static TileMatrixSet parseTileMatrixSet(XMLStreamReader reader) throws XMLStreamException {
459 TileMatrixSetBuilder matrixSet = new TileMatrixSetBuilder();
460 for (int event = reader.getEventType();
461 reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_TILEMATRIXSET.equals(reader.getName()));
462 event = reader.next()) {
463 if (event == XMLStreamReader.START_ELEMENT) {
464 if (GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER.equals(reader.getName())) {
465 matrixSet.identifier = reader.getElementText();
466 }
467 if (GetCapabilitiesParseHelper.QN_OWS_SUPPORTED_CRS.equals(reader.getName())) {
468 matrixSet.crs = GetCapabilitiesParseHelper.crsToCode(reader.getElementText());
469 }
470 if (QN_TILEMATRIX.equals(reader.getName())) {
471 matrixSet.tileMatrix.add(parseTileMatrix(reader, matrixSet.crs));
472 }
473 }
474 }
475 return matrixSet.build();
476 }
477
478 /**
479 * Parses TileMatrix section. Returns when reader is on TileMatrix closing tag.
480 * @param reader StAX reader instance
481 * @param matrixCrs projection used by this matrix
482 * @return TileMatrix object
483 * @throws XMLStreamException See {@link XMLStreamReader}
484 */
485 private static TileMatrix parseTileMatrix(XMLStreamReader reader, String matrixCrs) throws XMLStreamException {
486 Projection matrixProj = Projections.getProjectionByCode(matrixCrs);
487 TileMatrix ret = new TileMatrix();
488
489 if (matrixProj == null) {
490 // use current projection if none found. Maybe user is using custom string
491 matrixProj = Main.getProjection();
492 }
493 for (int event = reader.getEventType();
494 reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_TILEMATRIX.equals(reader.getName()));
495 event = reader.next()) {
496 if (event == XMLStreamReader.START_ELEMENT) {
497 if (GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER.equals(reader.getName())) {
498 ret.identifier = reader.getElementText();
499 }
500 if (QN_SCALE_DENOMINATOR.equals(reader.getName())) {
501 ret.scaleDenominator = Double.parseDouble(reader.getElementText());
502 }
503 if (QN_TOPLEFT_CORNER.equals(reader.getName())) {
504 String[] topLeftCorner = reader.getElementText().split(" ");
505 if (matrixProj.switchXY()) {
506 ret.topLeftCorner = new EastNorth(Double.parseDouble(topLeftCorner[1]), Double.parseDouble(topLeftCorner[0]));
507 } else {
508 ret.topLeftCorner = new EastNorth(Double.parseDouble(topLeftCorner[0]), Double.parseDouble(topLeftCorner[1]));
509 }
510 }
511 if (QN_TILE_HEIGHT.equals(reader.getName())) {
512 ret.tileHeight = Integer.parseInt(reader.getElementText());
513 }
514 if (QN_TILE_WIDTH.equals(reader.getName())) {
515 ret.tileWidth = Integer.parseInt(reader.getElementText());
516 }
517 if (QN_MATRIX_HEIGHT.equals(reader.getName())) {
518 ret.matrixHeight = Integer.parseInt(reader.getElementText());
519 }
520 if (QN_MATRIX_WIDTH.equals(reader.getName())) {
521 ret.matrixWidth = Integer.parseInt(reader.getElementText());
522 }
523 }
524 }
525 if (ret.tileHeight != ret.tileWidth) {
526 throw new AssertionError(tr("Only square tiles are supported. {0}x{1} returned by server for TileMatrix identifier {2}",
527 ret.tileHeight, ret.tileWidth, ret.identifier));
528 }
529 return ret;
530 }
531
532 /**
533 * Parses OperationMetadata section. Returns when reader is on OperationsMetadata closing tag.
534 * Sets this.baseUrl and this.transferMode
535 *
536 * @param reader StAX reader instance
537 * @throws XMLStreamException See {@link XMLStreamReader}
538 */
539 private void parseOperationMetadata(XMLStreamReader reader) throws XMLStreamException {
540 for (int event = reader.getEventType();
541 reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT &&
542 GetCapabilitiesParseHelper.QN_OWS_OPERATIONS_METADATA.equals(reader.getName()));
543 event = reader.next()) {
544 if (event == XMLStreamReader.START_ELEMENT &&
545 GetCapabilitiesParseHelper.QN_OWS_OPERATION.equals(reader.getName()) &&
546 "GetTile".equals(reader.getAttributeValue("", "name")) &&
547 GetCapabilitiesParseHelper.moveReaderToTag(reader, new QName[] {
548 GetCapabilitiesParseHelper.QN_OWS_DCP,
549 GetCapabilitiesParseHelper.QN_OWS_HTTP,
550 GetCapabilitiesParseHelper.QN_OWS_GET,
551 })) {
552 this.baseUrl = reader.getAttributeValue(GetCapabilitiesParseHelper.XLINK_NS_URL, "href");
553 this.transferMode = GetCapabilitiesParseHelper.getTransferMode(reader);
554 }
555 }
556 }
557
558 /**
559 * Initializes projection for this TileSource with projection
560 * @param proj projection to be used by this TileSource
561 */
562 public void initProjection(Projection proj) {
563 // getLayers will return only layers matching the name, if the user already choose the layer
564 // so we will not ask the user again to chose the layer, if he just changes projection
565 Collection<Layer> candidates = getLayers(
566 currentLayer != null ? new WMTSDefaultLayer(currentLayer.name, currentLayer.tileMatrixSet.identifier) : defaultLayer,
567 proj.toCode());
568
569 if (candidates.size() == 1) {
570 Layer newLayer = candidates.iterator().next();
571 if (newLayer != null) {
572 this.currentTileMatrixSet = newLayer.tileMatrixSet;
573 this.currentLayer = newLayer;
574 Collection<Double> scales = new ArrayList<>(currentTileMatrixSet.tileMatrix.size());
575 for (TileMatrix tileMatrix : currentTileMatrixSet.tileMatrix) {
576 scales.add(tileMatrix.scaleDenominator * 0.28e-03);
577 }
578 this.nativeScaleList = new ScaleList(scales);
579 }
580 } else if (candidates.size() > 1) {
581 Main.warn("More than one layer WMTS available: {0} for projection {1} and name {2}. Do not know which to process",
582 candidates.stream().map(x -> x.name + ": " + x.tileMatrixSet.identifier).collect(Collectors.joining(", ")),
583 proj.toCode(),
584 currentLayer != null ? currentLayer.name : defaultLayer
585 );
586 }
587 this.crsScale = getTileSize() * 0.28e-03 / proj.getMetersPerUnit();
588 }
589
590 /**
591 *
592 * @param searchLayer which layer do we look for
593 * @param projectionCode projection code to match
594 * @return Collection of layers matching the name of the layer and projection, or only projection if name is not provided
595 */
596 private Collection<Layer> getLayers(WMTSDefaultLayer searchLayer, String projectionCode) {
597 Collection<Layer> ret = new ArrayList<>();
598 if (this.layers != null) {
599 for (Layer layer: this.layers) {
600 if ((searchLayer == null || (// if it's null, then accept all layers
601 searchLayer.getLayerName().equals(layer.name) &&
602 searchLayer.getTileMatrixSet().equals(layer.tileMatrixSet.identifier)))
603 && (projectionCode == null || // if it's null, then accept any projection
604 projectionCode.equals(layer.tileMatrixSet.crs))) {
605 ret.add(layer);
606 }
607 }
608 }
609 return ret;
610 }
611
612 @Override
613 public int getTileSize() {
614 // no support for non-square tiles (tileHeight != tileWidth)
615 // and for different tile sizes at different zoom levels
616 Collection<Layer> projLayers = getLayers(null, Main.getProjection().toCode());
617 if (!projLayers.isEmpty()) {
618 return projLayers.iterator().next().tileMatrixSet.tileMatrix.get(0).tileHeight;
619 }
620 // if no layers is found, fallback to default mercator tile size. Maybe it will work
621 Main.warn("WMTS: Could not determine tile size. Using default tile size of: {0}", getDefaultTileSize());
622 return getDefaultTileSize();
623 }
624
625 @Override
626 public String getTileUrl(int zoom, int tilex, int tiley) {
627 if (currentLayer == null) {
628 return "";
629 }
630
631 String url;
632 if (currentLayer.baseUrl != null && transferMode == null) {
633 url = currentLayer.baseUrl;
634 } else {
635 switch (transferMode) {
636 case KVP:
637 url = baseUrl + URL_GET_ENCODING_PARAMS;
638 break;
639 case REST:
640 url = currentLayer.baseUrl;
641 break;
642 default:
643 url = "";
644 break;
645 }
646 }
647
648 TileMatrix tileMatrix = getTileMatrix(zoom);
649
650 if (tileMatrix == null) {
651 return ""; // no matrix, probably unsupported CRS selected.
652 }
653
654 return url.replaceAll("\\{layer\\}", this.currentLayer.name)
655 .replaceAll("\\{format\\}", this.currentLayer.format)
656 .replaceAll("\\{TileMatrixSet\\}", this.currentTileMatrixSet.identifier)
657 .replaceAll("\\{TileMatrix\\}", tileMatrix.identifier)
658 .replaceAll("\\{TileRow\\}", Integer.toString(tiley))
659 .replaceAll("\\{TileCol\\}", Integer.toString(tilex))
660 .replaceAll("(?i)\\{style\\}", this.currentLayer.style);
661 }
662
663 /**
664 *
665 * @param zoom zoom level
666 * @return TileMatrix that's working on this zoom level
667 */
668 private TileMatrix getTileMatrix(int zoom) {
669 if (zoom > getMaxZoom()) {
670 return null;
671 }
672 if (zoom < 0) {
673 return null;
674 }
675 return this.currentTileMatrixSet.tileMatrix.get(zoom);
676 }
677
678 @Override
679 public double getDistance(double lat1, double lon1, double lat2, double lon2) {
680 throw new UnsupportedOperationException("Not implemented");
681 }
682
683 @Override
684 public ICoordinate tileXYToLatLon(Tile tile) {
685 return tileXYToLatLon(tile.getXtile(), tile.getYtile(), tile.getZoom());
686 }
687
688 @Override
689 public ICoordinate tileXYToLatLon(TileXY xy, int zoom) {
690 return tileXYToLatLon(xy.getXIndex(), xy.getYIndex(), zoom);
691 }
692
693 @Override
694 public ICoordinate tileXYToLatLon(int x, int y, int zoom) {
695 TileMatrix matrix = getTileMatrix(zoom);
696 if (matrix == null) {
697 return Main.getProjection().getWorldBoundsLatLon().getCenter().toCoordinate();
698 }
699 double scale = matrix.scaleDenominator * this.crsScale;
700 EastNorth ret = new EastNorth(matrix.topLeftCorner.east() + x * scale, matrix.topLeftCorner.north() - y * scale);
701 return Main.getProjection().eastNorth2latlon(ret).toCoordinate();
702 }
703
704 @Override
705 public TileXY latLonToTileXY(double lat, double lon, int zoom) {
706 TileMatrix matrix = getTileMatrix(zoom);
707 if (matrix == null) {
708 return new TileXY(0, 0);
709 }
710
711 Projection proj = Main.getProjection();
712 EastNorth enPoint = proj.latlon2eastNorth(new LatLon(lat, lon));
713 double scale = matrix.scaleDenominator * this.crsScale;
714 return new TileXY(
715 (enPoint.east() - matrix.topLeftCorner.east()) / scale,
716 (matrix.topLeftCorner.north() - enPoint.north()) / scale
717 );
718 }
719
720 @Override
721 public TileXY latLonToTileXY(ICoordinate point, int zoom) {
722 return latLonToTileXY(point.getLat(), point.getLon(), zoom);
723 }
724
725 @Override
726 public int getTileXMax(int zoom) {
727 return getTileXMax(zoom, Main.getProjection());
728 }
729
730 @Override
731 public int getTileXMin(int zoom) {
732 return 0;
733 }
734
735 @Override
736 public int getTileYMax(int zoom) {
737 return getTileYMax(zoom, Main.getProjection());
738 }
739
740 @Override
741 public int getTileYMin(int zoom) {
742 return 0;
743 }
744
745 @Override
746 public Point latLonToXY(double lat, double lon, int zoom) {
747 TileMatrix matrix = getTileMatrix(zoom);
748 if (matrix == null) {
749 return new Point(0, 0);
750 }
751 double scale = matrix.scaleDenominator * this.crsScale;
752 EastNorth point = Main.getProjection().latlon2eastNorth(new LatLon(lat, lon));
753 return new Point(
754 (int) Math.round((point.east() - matrix.topLeftCorner.east()) / scale),
755 (int) Math.round((matrix.topLeftCorner.north() - point.north()) / scale)
756 );
757 }
758
759 @Override
760 public Point latLonToXY(ICoordinate point, int zoom) {
761 return latLonToXY(point.getLat(), point.getLon(), zoom);
762 }
763
764 @Override
765 public Coordinate xyToLatLon(Point point, int zoom) {
766 return xyToLatLon(point.x, point.y, zoom);
767 }
768
769 @Override
770 public Coordinate xyToLatLon(int x, int y, int zoom) {
771 TileMatrix matrix = getTileMatrix(zoom);
772 if (matrix == null) {
773 return new Coordinate(0, 0);
774 }
775 double scale = matrix.scaleDenominator * this.crsScale;
776 Projection proj = Main.getProjection();
777 EastNorth ret = new EastNorth(
778 matrix.topLeftCorner.east() + x * scale,
779 matrix.topLeftCorner.north() - y * scale
780 );
781 LatLon ll = proj.eastNorth2latlon(ret);
782 return new Coordinate(ll.lat(), ll.lon());
783 }
784
785 @Override
786 public Map<String, String> getHeaders() {
787 return headers;
788 }
789
790 @Override
791 public int getMaxZoom() {
792 if (this.currentTileMatrixSet != null) {
793 return this.currentTileMatrixSet.tileMatrix.size()-1;
794 }
795 return 0;
796 }
797
798 @Override
799 public String getTileId(int zoom, int tilex, int tiley) {
800 return getTileUrl(zoom, tilex, tiley);
801 }
802
803 /**
804 * Checks if url is acceptable by this Tile Source
805 * @param url URL to check
806 */
807 public static void checkUrl(String url) {
808 CheckParameterUtil.ensureParameterNotNull(url, "url");
809 Matcher m = Pattern.compile("\\{[^}]*\\}").matcher(url);
810 while (m.find()) {
811 boolean isSupportedPattern = false;
812 for (String pattern : ALL_PATTERNS) {
813 if (m.group().matches(pattern)) {
814 isSupportedPattern = true;
815 break;
816 }
817 }
818 if (!isSupportedPattern) {
819 throw new IllegalArgumentException(
820 tr("{0} is not a valid WMS argument. Please check this server URL:\n{1}", m.group(), url));
821 }
822 }
823 }
824
825 /**
826 * @return set of projection codes that this TileSource supports
827 */
828 public Set<String> getSupportedProjections() {
829 Set<String> ret = new HashSet<>();
830 if (currentLayer == null) {
831 for (Layer layer: this.layers) {
832 ret.add(layer.tileMatrixSet.crs);
833 }
834 } else {
835 for (Layer layer: this.layers) {
836 if (currentLayer.name.equals(layer.name)) {
837 ret.add(layer.tileMatrixSet.crs);
838 }
839 }
840 }
841 return ret;
842 }
843
844 private int getTileYMax(int zoom, Projection proj) {
845 TileMatrix matrix = getTileMatrix(zoom);
846 if (matrix == null) {
847 return 0;
848 }
849
850 if (matrix.matrixHeight != -1) {
851 return matrix.matrixHeight;
852 }
853
854 double scale = matrix.scaleDenominator * this.crsScale;
855 EastNorth min = matrix.topLeftCorner;
856 EastNorth max = proj.latlon2eastNorth(proj.getWorldBoundsLatLon().getMax());
857 return (int) Math.ceil(Math.abs(max.north() - min.north()) / scale);
858 }
859
860 private int getTileXMax(int zoom, Projection proj) {
861 TileMatrix matrix = getTileMatrix(zoom);
862 if (matrix == null) {
863 return 0;
864 }
865 if (matrix.matrixWidth != -1) {
866 return matrix.matrixWidth;
867 }
868
869 double scale = matrix.scaleDenominator * this.crsScale;
870 EastNorth min = matrix.topLeftCorner;
871 EastNorth max = proj.latlon2eastNorth(proj.getWorldBoundsLatLon().getMax());
872 return (int) Math.ceil(Math.abs(max.east() - min.east()) / scale);
873 }
874
875 /**
876 * Get native scales of tile source.
877 * @return {@link ScaleList} of native scales
878 */
879 public ScaleList getNativeScales() {
880 return nativeScaleList;
881 }
882
883}
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