// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.data.imagery;
import static org.openstreetmap.josm.tools.I18n.tr;
import java.awt.GridBagLayout;
import java.awt.Point;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Objects;
import java.util.Optional;
import java.util.SortedSet;
import java.util.Stack;
import java.util.TreeSet;
import java.util.concurrent.ConcurrentHashMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.table.AbstractTableModel;
import javax.xml.namespace.QName;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamReader;
import org.openstreetmap.gui.jmapviewer.Coordinate;
import org.openstreetmap.gui.jmapviewer.Projected;
import org.openstreetmap.gui.jmapviewer.Tile;
import org.openstreetmap.gui.jmapviewer.TileRange;
import org.openstreetmap.gui.jmapviewer.TileXY;
import org.openstreetmap.gui.jmapviewer.interfaces.ICoordinate;
import org.openstreetmap.gui.jmapviewer.interfaces.IProjected;
import org.openstreetmap.gui.jmapviewer.interfaces.TemplatedTileSource;
import org.openstreetmap.gui.jmapviewer.tilesources.AbstractTMSTileSource;
import org.openstreetmap.josm.Main;
import org.openstreetmap.josm.data.ProjectionBounds;
import org.openstreetmap.josm.data.coor.EastNorth;
import org.openstreetmap.josm.data.coor.LatLon;
import org.openstreetmap.josm.data.projection.Projection;
import org.openstreetmap.josm.data.projection.Projections;
import org.openstreetmap.josm.gui.ExtendedDialog;
import org.openstreetmap.josm.gui.layer.NativeScaleLayer.ScaleList;
import org.openstreetmap.josm.io.CachedFile;
import org.openstreetmap.josm.tools.CheckParameterUtil;
import org.openstreetmap.josm.tools.GBC;
import org.openstreetmap.josm.tools.Utils;
/**
* Tile Source handling WMTS providers
*
* @author Wiktor Niesiobędzki
* @since 8526
*/
public class WMTSTileSource extends AbstractTMSTileSource implements TemplatedTileSource {
/**
* WMTS namespace address
*/
public static final String WMTS_NS_URL = "http://www.opengis.net/wmts/1.0";
// CHECKSTYLE.OFF: SingleSpaceSeparator
private static final QName QN_CONTENTS = new QName(WMTSTileSource.WMTS_NS_URL, "Contents");
private static final QName QN_FORMAT = new QName(WMTSTileSource.WMTS_NS_URL, "Format");
private static final QName QN_LAYER = new QName(WMTSTileSource.WMTS_NS_URL, "Layer");
private static final QName QN_MATRIX_WIDTH = new QName(WMTSTileSource.WMTS_NS_URL, "MatrixWidth");
private static final QName QN_MATRIX_HEIGHT = new QName(WMTSTileSource.WMTS_NS_URL, "MatrixHeight");
private static final QName QN_RESOURCE_URL = new QName(WMTSTileSource.WMTS_NS_URL, "ResourceURL");
private static final QName QN_SCALE_DENOMINATOR = new QName(WMTSTileSource.WMTS_NS_URL, "ScaleDenominator");
private static final QName QN_STYLE = new QName(WMTSTileSource.WMTS_NS_URL, "Style");
private static final QName QN_TILEMATRIX = new QName(WMTSTileSource.WMTS_NS_URL, "TileMatrix");
private static final QName QN_TILEMATRIXSET = new QName(WMTSTileSource.WMTS_NS_URL, "TileMatrixSet");
private static final QName QN_TILEMATRIX_SET_LINK = new QName(WMTSTileSource.WMTS_NS_URL, "TileMatrixSetLink");
private static final QName QN_TILE_WIDTH = new QName(WMTSTileSource.WMTS_NS_URL, "TileWidth");
private static final QName QN_TILE_HEIGHT = new QName(WMTSTileSource.WMTS_NS_URL, "TileHeight");
private static final QName QN_TOPLEFT_CORNER = new QName(WMTSTileSource.WMTS_NS_URL, "TopLeftCorner");
// CHECKSTYLE.ON: SingleSpaceSeparator
private static final String PATTERN_HEADER = "\\{header\\(([^,]+),([^}]+)\\)\\}";
private static final String URL_GET_ENCODING_PARAMS = "SERVICE=WMTS&REQUEST=GetTile&VERSION=1.0.0&LAYER={layer}&STYLE={style}&"
+ "FORMAT={format}&tileMatrixSet={TileMatrixSet}&tileMatrix={TileMatrix}&tileRow={TileRow}&tileCol={TileCol}";
private static final String[] ALL_PATTERNS = {
PATTERN_HEADER,
};
private static class TileMatrix {
private String identifier;
private double scaleDenominator;
private EastNorth topLeftCorner;
private int tileWidth;
private int tileHeight;
private int matrixWidth = -1;
private int matrixHeight = -1;
}
private static class TileMatrixSetBuilder {
// sorted by zoom level
SortedSet<TileMatrix> tileMatrix = new TreeSet<>((o1, o2) -> -1 * Double.compare(o1.scaleDenominator, o2.scaleDenominator));
private String crs;
private String identifier;
TileMatrixSet build() {
return new TileMatrixSet(this);
}
}
private static class TileMatrixSet {
private final List<TileMatrix> tileMatrix;
private final String crs;
private final String identifier;
TileMatrixSet(TileMatrixSet tileMatrixSet) {
if (tileMatrixSet != null) {
tileMatrix = new ArrayList<>(tileMatrixSet.tileMatrix);
crs = tileMatrixSet.crs;
identifier = tileMatrixSet.identifier;
} else {
tileMatrix = Collections.emptyList();
crs = null;
identifier = null;
}
}
TileMatrixSet(TileMatrixSetBuilder builder) {
tileMatrix = new ArrayList<>(builder.tileMatrix);
crs = builder.crs;
identifier = builder.identifier;
}
}
private static class Layer {
private String format;
private String identifier;
private String title;
private TileMatrixSet tileMatrixSet;
private String baseUrl;
private String style;
private final Collection<String> tileMatrixSetLinks = new ArrayList<>();
Layer(Layer l) {
Objects.requireNonNull(l);
format = l.format;
identifier = l.identifier;
title = l.title;
baseUrl = l.baseUrl;
style = l.style;
tileMatrixSet = new TileMatrixSet(l.tileMatrixSet);
}
Layer() {
}
/**
* Get title of the layer for user display.
*
* This is either the content of the Title element (if available) or
* the layer identifier (as fallback)
* @return title of the layer for user display
*/
public String getUserTitle() {
return title != null ? title : identifier;
}
}
private static final class SelectLayerDialog extends ExtendedDialog {
private final transient List<Entry<String, List<Layer>>> layers;
private final JTable list;
SelectLayerDialog(Collection<Layer> layers) {
super(Main.parent, tr("Select WMTS layer"), new String[]{tr("Add layers"), tr("Cancel")});
this.layers = groupLayersByNameAndTileMatrixSet(layers);
//getLayersTable(layers, Main.getProjection())
this.list = new JTable(
new AbstractTableModel() {
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
switch (columnIndex) {
case 0:
return SelectLayerDialog.this.layers.get(rowIndex).getValue()
.stream()
.map(Layer::getUserTitle)
.collect(Collectors.joining(", ")); //this should be only one
case 1:
return SelectLayerDialog.this.layers.get(rowIndex).getValue()
.stream()
.map(x -> x.tileMatrixSet.crs)
.collect(Collectors.joining(", "));
case 2:
return SelectLayerDialog.this.layers.get(rowIndex).getValue()
.stream()
.map(x -> x.tileMatrixSet.identifier)
.collect(Collectors.joining(", ")); //this should be only one
default:
throw new IllegalArgumentException();
}
}
@Override
public int getRowCount() {
return SelectLayerDialog.this.layers.size();
}
@Override
public int getColumnCount() {
return 3;
}
@Override
public String getColumnName(int column) {
switch (column) {
case 0: return tr("Layer name");
case 1: return tr("Projection");
case 2: return tr("Matrix set identifier");
default:
throw new IllegalArgumentException();
}
}
});
this.list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
this.list.setRowSelectionAllowed(true);
this.list.setColumnSelectionAllowed(false);
JPanel panel = new JPanel(new GridBagLayout());
panel.add(new JScrollPane(this.list), GBC.eol().fill());
setContent(panel);
}
public DefaultLayer getSelectedLayer() {
int index = list.getSelectedRow();
if (index < 0) {
return null; //nothing selected
}
Layer selectedLayer = layers.get(index).getValue().get(0);
return new WMTSDefaultLayer(selectedLayer.identifier, selectedLayer.tileMatrixSet.identifier);
}
private static List<Entry<String, List<Layer>>> groupLayersByNameAndTileMatrixSet(Collection<Layer> layers) {
Map<String, List<Layer>> layerByName = layers.stream().collect(
Collectors.groupingBy(x -> x.identifier + '\u001c' + x.tileMatrixSet.identifier));
return layerByName.entrySet().stream().sorted(Map.Entry.comparingByKey()).collect(Collectors.toList());
}
}
private final Map<String, String> headers = new ConcurrentHashMap<>();
private final Collection<Layer> layers;
private Layer currentLayer;
private TileMatrixSet currentTileMatrixSet;
private double crsScale;
private GetCapabilitiesParseHelper.TransferMode transferMode;
private ScaleList nativeScaleList;
private final WMTSDefaultLayer defaultLayer;
private Projection tileProjection;
/**
* Creates a tile source based on imagery info
* @param info imagery info
* @throws IOException if any I/O error occurs
* @throws IllegalArgumentException if any other error happens for the given imagery info
*/
public WMTSTileSource(ImageryInfo info) throws IOException {
super(info);
CheckParameterUtil.ensureThat(info.getDefaultLayers().size() < 2, "At most 1 default layer for WMTS is supported");
this.baseUrl = GetCapabilitiesParseHelper.normalizeCapabilitiesUrl(handleTemplate(info.getUrl()));
this.layers = getCapabilities();
if (info.getDefaultLayers().isEmpty()) {
Main.warn(tr("No default layer selected, choosing first layer."));
if (!layers.isEmpty()) {
Layer first = layers.iterator().next();
this.defaultLayer = new WMTSDefaultLayer(first.identifier, first.tileMatrixSet.identifier);
} else {
this.defaultLayer = null;
}
} else {
DefaultLayer defLayer = info.getDefaultLayers().iterator().next();
if (defLayer instanceof WMTSDefaultLayer) {
this.defaultLayer = (WMTSDefaultLayer) defLayer;
} else {
this.defaultLayer = null;
}
}
if (this.layers.isEmpty())
throw new IllegalArgumentException(tr("No layers defined by getCapabilities document: {0}", info.getUrl()));
}
/**
* Creates a dialog based on this tile source with all available layers and returns the name of selected layer
* @return Name of selected layer
*/
public DefaultLayer userSelectLayer() {
Map<String, List<Layer>> layerById = layers.stream().collect(
Collectors.groupingBy(x -> x.identifier));
if (layerById.size() == 1) { // only one layer
List<Layer> ls = layerById.entrySet().iterator().next().getValue()
.stream().filter(
u -> u.tileMatrixSet.crs.equals(Main.getProjection().toCode()))
.collect(Collectors.toList());
if (ls.size() == 1) {
// only one tile matrix set with matching projection - no point in asking
Layer selectedLayer = ls.get(0);
return new WMTSDefaultLayer(selectedLayer.identifier, selectedLayer.tileMatrixSet.identifier);
}
}
final SelectLayerDialog layerSelection = new SelectLayerDialog(layers);
if (layerSelection.showDialog().getValue() == 1) {
return layerSelection.getSelectedLayer();
}
return null;
}
private String handleTemplate(String url) {
Pattern pattern = Pattern.compile(PATTERN_HEADER);
StringBuffer output = new StringBuffer();
Matcher matcher = pattern.matcher(url);
while (matcher.find()) {
this.headers.put(matcher.group(1), matcher.group(2));
matcher.appendReplacement(output, "");
}
matcher.appendTail(output);
return output.toString();
}
/**
* @return capabilities
* @throws IOException in case of any I/O error
* @throws IllegalArgumentException in case of any other error
*/
private Collection<Layer> getCapabilities() throws IOException {
try (CachedFile cf = new CachedFile(baseUrl); InputStream in = cf.setHttpHeaders(headers).
setMaxAge(7 * CachedFile.DAYS).
setCachingStrategy(CachedFile.CachingStrategy.IfModifiedSince).
getInputStream()) {
byte[] data = Utils.readBytesFromStream(in);
if (data.length == 0) {
cf.clear();
throw new IllegalArgumentException("Could not read data from: " + baseUrl);
}
try {
XMLStreamReader reader = GetCapabilitiesParseHelper.getReader(new ByteArrayInputStream(data));
Collection<Layer> ret = new ArrayList<>();
for (int event = reader.getEventType(); reader.hasNext(); event = reader.next()) {
if (event == XMLStreamReader.START_ELEMENT) {
if (GetCapabilitiesParseHelper.QN_OWS_OPERATIONS_METADATA.equals(reader.getName())) {
parseOperationMetadata(reader);
}
if (QN_CONTENTS.equals(reader.getName())) {
ret = parseContents(reader);
}
}
}
return ret;
} catch (XMLStreamException e) {
cf.clear();
Main.warn(new String(data, StandardCharsets.UTF_8));
throw new IllegalArgumentException(e);
}
}
}
/**
* Parse Contents tag. Returns when reader reaches Contents closing tag
*
* @param reader StAX reader instance
* @return collection of layers within contents with properly linked TileMatrixSets
* @throws XMLStreamException See {@link XMLStreamReader}
*/
private static Collection<Layer> parseContents(XMLStreamReader reader) throws XMLStreamException {
Map<String, TileMatrixSet> matrixSetById = new ConcurrentHashMap<>();
Collection<Layer> layers = new ArrayList<>();
for (int event = reader.getEventType();
reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_CONTENTS.equals(reader.getName()));
event = reader.next()) {
if (event == XMLStreamReader.START_ELEMENT) {
if (QN_LAYER.equals(reader.getName())) {
Layer l = parseLayer(reader);
if (l != null) {
layers.add(l);
}
}
if (QN_TILEMATRIXSET.equals(reader.getName())) {
TileMatrixSet entry = parseTileMatrixSet(reader);
matrixSetById.put(entry.identifier, entry);
}
}
}
Collection<Layer> ret = new ArrayList<>();
// link layers to matrix sets
for (Layer l: layers) {
for (String tileMatrixId: l.tileMatrixSetLinks) {
Layer newLayer = new Layer(l); // create a new layer object for each tile matrix set supported
newLayer.tileMatrixSet = matrixSetById.get(tileMatrixId);
ret.add(newLayer);
}
}
return ret;
}
/**
* Parse Layer tag. Returns when reader will reach Layer closing tag
*
* @param reader StAX reader instance
* @return Layer object, with tileMatrixSetLinks and no tileMatrixSet attribute set.
* @throws XMLStreamException See {@link XMLStreamReader}
*/
private static Layer parseLayer(XMLStreamReader reader) throws XMLStreamException {
Layer layer = new Layer();
Stack<QName> tagStack = new Stack<>();
List<String> supportedMimeTypes = new ArrayList<>(Arrays.asList(ImageIO.getReaderMIMETypes()));
supportedMimeTypes.add("image/jpgpng"); // used by ESRI
supportedMimeTypes.add("image/png8"); // used by geoserver
Collection<String> unsupportedFormats = new ArrayList<>();
for (int event = reader.getEventType();
reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_LAYER.equals(reader.getName()));
event = reader.next()) {
if (event == XMLStreamReader.START_ELEMENT) {
tagStack.push(reader.getName());
if (tagStack.size() == 2) {
if (QN_FORMAT.equals(reader.getName())) {
String format = reader.getElementText();
if (supportedMimeTypes.contains(format)) {
layer.format = format;
} else {
unsupportedFormats.add(format);
}
} else if (GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER.equals(reader.getName())) {
layer.identifier = reader.getElementText();
} else if (GetCapabilitiesParseHelper.QN_OWS_TITLE.equals(reader.getName())) {
layer.title = reader.getElementText();
} else if (QN_RESOURCE_URL.equals(reader.getName()) &&
"tile".equals(reader.getAttributeValue("", "resourceType"))) {
layer.baseUrl = reader.getAttributeValue("", "template");
} else if (QN_STYLE.equals(reader.getName()) &&
"true".equals(reader.getAttributeValue("", "isDefault"))) {
if (GetCapabilitiesParseHelper.moveReaderToTag(reader, new QName[] {GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER})) {
layer.style = reader.getElementText();
tagStack.push(reader.getName()); // keep tagStack in sync
}
} else if (QN_TILEMATRIX_SET_LINK.equals(reader.getName())) {
layer.tileMatrixSetLinks.add(praseTileMatrixSetLink(reader));
} else {
GetCapabilitiesParseHelper.moveReaderToEndCurrentTag(reader);
}
}
}
// need to get event type from reader, as parsing might have change position of reader
if (reader.getEventType() == XMLStreamReader.END_ELEMENT) {
QName start = tagStack.pop();
if (!start.equals(reader.getName())) {
throw new IllegalStateException(tr("WMTS Parser error - start element {0} has different name than end element {2}",
start, reader.getName()));
}
}
}
if (layer.style == null) {
layer.style = "";
}
if (layer.format == null) {
// no format found - it's mandatory parameter - can't use this layer
Main.warn(tr("Can''t use layer {0} because no supported formats where found. Layer is available in formats: {1}",
layer.getUserTitle(),
String.join(", ", unsupportedFormats)));
return null;
}
return layer;
}
/**
* Gets TileMatrixSetLink value. Returns when reader is on TileMatrixSetLink closing tag
*
* @param reader StAX reader instance
* @return TileMatrixSetLink identifier
* @throws XMLStreamException See {@link XMLStreamReader}
*/
private static String praseTileMatrixSetLink(XMLStreamReader reader) throws XMLStreamException {
String ret = null;
for (int event = reader.getEventType();
reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT &&
QN_TILEMATRIX_SET_LINK.equals(reader.getName()));
event = reader.next()) {
if (event == XMLStreamReader.START_ELEMENT && QN_TILEMATRIXSET.equals(reader.getName())) {
ret = reader.getElementText();
}
}
return ret;
}
/**
* Parses TileMatrixSet section. Returns when reader is on TileMatrixSet closing tag
* @param reader StAX reader instance
* @return TileMatrixSet object
* @throws XMLStreamException See {@link XMLStreamReader}
*/
private static TileMatrixSet parseTileMatrixSet(XMLStreamReader reader) throws XMLStreamException {
TileMatrixSetBuilder matrixSet = new TileMatrixSetBuilder();
for (int event = reader.getEventType();
reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_TILEMATRIXSET.equals(reader.getName()));
event = reader.next()) {
if (event == XMLStreamReader.START_ELEMENT) {
if (GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER.equals(reader.getName())) {
matrixSet.identifier = reader.getElementText();
}
if (GetCapabilitiesParseHelper.QN_OWS_SUPPORTED_CRS.equals(reader.getName())) {
matrixSet.crs = GetCapabilitiesParseHelper.crsToCode(reader.getElementText());
}
if (QN_TILEMATRIX.equals(reader.getName())) {
matrixSet.tileMatrix.add(parseTileMatrix(reader, matrixSet.crs));
}
}
}
return matrixSet.build();
}
/**
* Parses TileMatrix section. Returns when reader is on TileMatrix closing tag.
* @param reader StAX reader instance
* @param matrixCrs projection used by this matrix
* @return TileMatrix object
* @throws XMLStreamException See {@link XMLStreamReader}
*/
private static TileMatrix parseTileMatrix(XMLStreamReader reader, String matrixCrs) throws XMLStreamException {
Projection matrixProj = Optional.ofNullable(Projections.getProjectionByCode(matrixCrs))
.orElseGet(Main::getProjection); // use current projection if none found. Maybe user is using custom string
TileMatrix ret = new TileMatrix();
for (int event = reader.getEventType();
reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT && QN_TILEMATRIX.equals(reader.getName()));
event = reader.next()) {
if (event == XMLStreamReader.START_ELEMENT) {
if (GetCapabilitiesParseHelper.QN_OWS_IDENTIFIER.equals(reader.getName())) {
ret.identifier = reader.getElementText();
}
if (QN_SCALE_DENOMINATOR.equals(reader.getName())) {
ret.scaleDenominator = Double.parseDouble(reader.getElementText());
}
if (QN_TOPLEFT_CORNER.equals(reader.getName())) {
String[] topLeftCorner = reader.getElementText().split(" ");
if (matrixProj.switchXY()) {
ret.topLeftCorner = new EastNorth(Double.parseDouble(topLeftCorner[1]), Double.parseDouble(topLeftCorner[0]));
} else {
ret.topLeftCorner = new EastNorth(Double.parseDouble(topLeftCorner[0]), Double.parseDouble(topLeftCorner[1]));
}
}
if (QN_TILE_HEIGHT.equals(reader.getName())) {
ret.tileHeight = Integer.parseInt(reader.getElementText());
}
if (QN_TILE_WIDTH.equals(reader.getName())) {
ret.tileWidth = Integer.parseInt(reader.getElementText());
}
if (QN_MATRIX_HEIGHT.equals(reader.getName())) {
ret.matrixHeight = Integer.parseInt(reader.getElementText());
}
if (QN_MATRIX_WIDTH.equals(reader.getName())) {
ret.matrixWidth = Integer.parseInt(reader.getElementText());
}
}
}
if (ret.tileHeight != ret.tileWidth) {
throw new AssertionError(tr("Only square tiles are supported. {0}x{1} returned by server for TileMatrix identifier {2}",
ret.tileHeight, ret.tileWidth, ret.identifier));
}
return ret;
}
/**
* Parses OperationMetadata section. Returns when reader is on OperationsMetadata closing tag.
* Sets this.baseUrl and this.transferMode
*
* @param reader StAX reader instance
* @throws XMLStreamException See {@link XMLStreamReader}
*/
private void parseOperationMetadata(XMLStreamReader reader) throws XMLStreamException {
for (int event = reader.getEventType();
reader.hasNext() && !(event == XMLStreamReader.END_ELEMENT &&
GetCapabilitiesParseHelper.QN_OWS_OPERATIONS_METADATA.equals(reader.getName()));
event = reader.next()) {
if (event == XMLStreamReader.START_ELEMENT &&
GetCapabilitiesParseHelper.QN_OWS_OPERATION.equals(reader.getName()) &&
"GetTile".equals(reader.getAttributeValue("", "name")) &&
GetCapabilitiesParseHelper.moveReaderToTag(reader, new QName[] {
GetCapabilitiesParseHelper.QN_OWS_DCP,
GetCapabilitiesParseHelper.QN_OWS_HTTP,
GetCapabilitiesParseHelper.QN_OWS_GET,
})) {
this.baseUrl = reader.getAttributeValue(GetCapabilitiesParseHelper.XLINK_NS_URL, "href");
this.transferMode = GetCapabilitiesParseHelper.getTransferMode(reader);
}
}
}
/**
* Initializes projection for this TileSource with projection
* @param proj projection to be used by this TileSource
*/
public void initProjection(Projection proj) {
if (proj.equals(tileProjection))
return;
List<Layer> matchingLayers = layers.stream().filter(
l -> l.identifier.equals(defaultLayer.layerName) && l.tileMatrixSet.crs.equals(proj.toCode()))
.collect(Collectors.toList());
if (matchingLayers.size() > 1) {
this.currentLayer = matchingLayers.stream().filter(
l -> l.tileMatrixSet.identifier.equals(defaultLayer.getTileMatrixSet()))
.findFirst().orElse(null);
this.tileProjection = proj;
} else if (matchingLayers.size() == 1) {
this.currentLayer = matchingLayers.get(0);
this.tileProjection = proj;
} else {
// no tile matrix sets with current projection
if (this.currentLayer == null) {
this.tileProjection = null;
for (Layer layer : layers) {
if (!layer.identifier.equals(defaultLayer.layerName)) {
continue;
}
Projection pr = Projections.getProjectionByCode(layer.tileMatrixSet.crs);
if (pr != null) {
this.currentLayer = layer;
this.tileProjection = pr;
break;
}
}
if (this.currentLayer == null)
return;
} // else: keep currentLayer and tileProjection as is
}
this.currentTileMatrixSet = this.currentLayer.tileMatrixSet;
Collection<Double> scales = new ArrayList<>(currentTileMatrixSet.tileMatrix.size());
for (TileMatrix tileMatrix : currentTileMatrixSet.tileMatrix) {
scales.add(tileMatrix.scaleDenominator * 0.28e-03);
}
this.nativeScaleList = new ScaleList(scales);
this.crsScale = getTileSize() * 0.28e-03 / this.tileProjection.getMetersPerUnit();
}
/**
*
* @param searchLayer which layer do we look for
* @param projectionCode projection code to match
* @return Collection of layers matching the name of the layer and projection, or only projection if name is not provided
*/
private Collection<Layer> getLayers(WMTSDefaultLayer searchLayer, String projectionCode) {
Collection<Layer> ret = new ArrayList<>();
if (this.layers != null) {
for (Layer layer: this.layers) {
if ((searchLayer == null || (// if it's null, then accept all layers
searchLayer.getLayerName().equals(layer.identifier)))
&& (projectionCode == null || // if it's null, then accept any projection
projectionCode.equals(layer.tileMatrixSet.crs))) {
ret.add(layer);
}
}
}
return ret;
}
@Override
public int getTileSize() {
// no support for non-square tiles (tileHeight != tileWidth)
// and for different tile sizes at different zoom levels
Collection<Layer> projLayers = getLayers(null, tileProjection.toCode());
if (!projLayers.isEmpty()) {
return projLayers.iterator().next().tileMatrixSet.tileMatrix.get(0).tileHeight;
}
// if no layers is found, fallback to default mercator tile size. Maybe it will work
Main.warn("WMTS: Could not determine tile size. Using default tile size of: {0}", getDefaultTileSize());
return getDefaultTileSize();
}
@Override
public String getTileUrl(int zoom, int tilex, int tiley) {
if (currentLayer == null) {
return "";
}
String url;
if (currentLayer.baseUrl != null && transferMode == null) {
url = currentLayer.baseUrl;
} else {
switch (transferMode) {
case KVP:
url = baseUrl + URL_GET_ENCODING_PARAMS;
break;
case REST:
url = currentLayer.baseUrl;
break;
default:
url = "";
break;
}
}
TileMatrix tileMatrix = getTileMatrix(zoom);
if (tileMatrix == null) {
return ""; // no matrix, probably unsupported CRS selected.
}
return url.replaceAll("\\{layer\\}", this.currentLayer.identifier)
.replaceAll("\\{format\\}", this.currentLayer.format)
.replaceAll("\\{TileMatrixSet\\}", this.currentTileMatrixSet.identifier)
.replaceAll("\\{TileMatrix\\}", tileMatrix.identifier)
.replaceAll("\\{TileRow\\}", Integer.toString(tiley))
.replaceAll("\\{TileCol\\}", Integer.toString(tilex))
.replaceAll("(?i)\\{style\\}", this.currentLayer.style);
}
/**
*
* @param zoom zoom level
* @return TileMatrix that's working on this zoom level
*/
private TileMatrix getTileMatrix(int zoom) {
if (zoom > getMaxZoom()) {
return null;
}
if (zoom < 0) {
return null;
}
return this.currentTileMatrixSet.tileMatrix.get(zoom);
}
@Override
public double getDistance(double lat1, double lon1, double lat2, double lon2) {
throw new UnsupportedOperationException("Not implemented");
}
@Override
public ICoordinate tileXYToLatLon(Tile tile) {
return tileXYToLatLon(tile.getXtile(), tile.getYtile(), tile.getZoom());
}
@Override
public ICoordinate tileXYToLatLon(TileXY xy, int zoom) {
return tileXYToLatLon(xy.getXIndex(), xy.getYIndex(), zoom);
}
@Override
public ICoordinate tileXYToLatLon(int x, int y, int zoom) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return tileProjection.getWorldBoundsLatLon().getCenter().toCoordinate();
}
double scale = matrix.scaleDenominator * this.crsScale;
EastNorth ret = new EastNorth(matrix.topLeftCorner.east() + x * scale, matrix.topLeftCorner.north() - y * scale);
return tileProjection.eastNorth2latlon(ret).toCoordinate();
}
@Override
public TileXY latLonToTileXY(double lat, double lon, int zoom) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return new TileXY(0, 0);
}
EastNorth enPoint = tileProjection.latlon2eastNorth(new LatLon(lat, lon));
double scale = matrix.scaleDenominator * this.crsScale;
return new TileXY(
(enPoint.east() - matrix.topLeftCorner.east()) / scale,
(matrix.topLeftCorner.north() - enPoint.north()) / scale
);
}
@Override
public TileXY latLonToTileXY(ICoordinate point, int zoom) {
return latLonToTileXY(point.getLat(), point.getLon(), zoom);
}
@Override
public int getTileXMax(int zoom) {
return getTileXMax(zoom, tileProjection);
}
@Override
public int getTileYMax(int zoom) {
return getTileYMax(zoom, tileProjection);
}
@Override
public Point latLonToXY(double lat, double lon, int zoom) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return new Point(0, 0);
}
double scale = matrix.scaleDenominator * this.crsScale;
EastNorth point = tileProjection.latlon2eastNorth(new LatLon(lat, lon));
return new Point(
(int) Math.round((point.east() - matrix.topLeftCorner.east()) / scale),
(int) Math.round((matrix.topLeftCorner.north() - point.north()) / scale)
);
}
@Override
public Point latLonToXY(ICoordinate point, int zoom) {
return latLonToXY(point.getLat(), point.getLon(), zoom);
}
@Override
public Coordinate xyToLatLon(Point point, int zoom) {
return xyToLatLon(point.x, point.y, zoom);
}
@Override
public Coordinate xyToLatLon(int x, int y, int zoom) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return new Coordinate(0, 0);
}
double scale = matrix.scaleDenominator * this.crsScale;
EastNorth ret = new EastNorth(
matrix.topLeftCorner.east() + x * scale,
matrix.topLeftCorner.north() - y * scale
);
LatLon ll = tileProjection.eastNorth2latlon(ret);
return new Coordinate(ll.lat(), ll.lon());
}
@Override
public Map<String, String> getHeaders() {
return headers;
}
@Override
public int getMaxZoom() {
if (this.currentTileMatrixSet != null) {
return this.currentTileMatrixSet.tileMatrix.size()-1;
}
return 0;
}
@Override
public String getTileId(int zoom, int tilex, int tiley) {
return getTileUrl(zoom, tilex, tiley);
}
/**
* Checks if url is acceptable by this Tile Source
* @param url URL to check
*/
public static void checkUrl(String url) {
CheckParameterUtil.ensureParameterNotNull(url, "url");
Matcher m = Pattern.compile("\\{[^}]*\\}").matcher(url);
while (m.find()) {
boolean isSupportedPattern = false;
for (String pattern : ALL_PATTERNS) {
if (m.group().matches(pattern)) {
isSupportedPattern = true;
break;
}
}
if (!isSupportedPattern) {
throw new IllegalArgumentException(
tr("{0} is not a valid WMS argument. Please check this server URL:\n{1}", m.group(), url));
}
}
}
/**
* @return set of projection codes that this TileSource supports
*/
public Collection<String> getSupportedProjections() {
Collection<String> ret = new LinkedHashSet<>();
if (currentLayer == null) {
for (Layer layer: this.layers) {
ret.add(layer.tileMatrixSet.crs);
}
} else {
for (Layer layer: this.layers) {
if (currentLayer.identifier.equals(layer.identifier)) {
ret.add(layer.tileMatrixSet.crs);
}
}
}
return ret;
}
private int getTileYMax(int zoom, Projection proj) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return 0;
}
if (matrix.matrixHeight != -1) {
return matrix.matrixHeight;
}
double scale = matrix.scaleDenominator * this.crsScale;
EastNorth min = matrix.topLeftCorner;
EastNorth max = proj.latlon2eastNorth(proj.getWorldBoundsLatLon().getMax());
return (int) Math.ceil(Math.abs(max.north() - min.north()) / scale);
}
private int getTileXMax(int zoom, Projection proj) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return 0;
}
if (matrix.matrixWidth != -1) {
return matrix.matrixWidth;
}
double scale = matrix.scaleDenominator * this.crsScale;
EastNorth min = matrix.topLeftCorner;
EastNorth max = proj.latlon2eastNorth(proj.getWorldBoundsLatLon().getMax());
return (int) Math.ceil(Math.abs(max.east() - min.east()) / scale);
}
/**
* Get native scales of tile source.
* @return {@link ScaleList} of native scales
*/
public ScaleList getNativeScales() {
return nativeScaleList;
}
public Projection getTileProjection() {
return tileProjection;
}
@Override
public IProjected tileXYtoProjected(int x, int y, int zoom) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return new Projected(0, 0);
}
double scale = matrix.scaleDenominator * this.crsScale;
return new Projected(
matrix.topLeftCorner.east() + x * scale,
matrix.topLeftCorner.north() - y * scale);
}
@Override
public TileXY projectedToTileXY(IProjected projected, int zoom) {
TileMatrix matrix = getTileMatrix(zoom);
if (matrix == null) {
return new TileXY(0, 0);
}
double scale = matrix.scaleDenominator * this.crsScale;
return new TileXY(
(projected.getEast() - matrix.topLeftCorner.east()) / scale,
-(projected.getNorth() - matrix.topLeftCorner.north()) / scale);
}
private ProjectionBounds getTileProjectionBounds(Tile tile) {
ProjectionBounds pb = new ProjectionBounds(new EastNorth(
this.tileXYtoProjected(tile.getXtile(), tile.getYtile(), tile.getZoom())));
pb.extend(new EastNorth(this.tileXYtoProjected(tile.getXtile() + 1, tile.getYtile() + 1, tile.getZoom())));
return pb;
}
@Override
public boolean isInside(Tile inner, Tile outer) {
ProjectionBounds pbInner = getTileProjectionBounds(inner);
ProjectionBounds pbOuter = getTileProjectionBounds(outer);
// a little tolerance, for when inner tile touches the border of the
// outer tile
double epsilon = 1e-7 * (pbOuter.maxEast - pbOuter.minEast);
return pbOuter.minEast <= pbInner.minEast + epsilon &&
pbOuter.minNorth <= pbInner.minNorth + epsilon &&
pbOuter.maxEast >= pbInner.maxEast - epsilon &&
pbOuter.maxNorth >= pbInner.maxNorth - epsilon;
}
@Override
public TileRange getCoveringTileRange(Tile tile, int newZoom) {
TileMatrix matrixNew = getTileMatrix(newZoom);
if (matrixNew == null) {
return new TileRange(new TileXY(0, 0), new TileXY(0, 0), newZoom);
}
IProjected p0 = tileXYtoProjected(tile.getXtile(), tile.getYtile(), tile.getZoom());
IProjected p1 = tileXYtoProjected(tile.getXtile() + 1, tile.getYtile() + 1, tile.getZoom());
TileXY tMin = projectedToTileXY(p0, newZoom);
TileXY tMax = projectedToTileXY(p1, newZoom);
// shrink the target tile a little, so we don't get neighboring tiles, that
// share an edge, but don't actually cover the target tile
double epsilon = 1e-7 * (tMax.getX() - tMin.getX());
int minX = (int) Math.floor(tMin.getX() + epsilon);
int minY = (int) Math.floor(tMin.getY() + epsilon);
int maxX = (int) Math.ceil(tMax.getX() - epsilon) - 1;
int maxY = (int) Math.ceil(tMax.getY() - epsilon) - 1;
return new TileRange(new TileXY(minX, minY), new TileXY(maxX, maxY), newZoom);
}
@Override
public String getServerCRS() {
return tileProjection.toCode();
}
}