/**
* Create a {@link TiledImageLayer} layer described by an XML layer description.
*
* @param domElement the XML element describing the layer to create. The element must inculde a
* service name identifying the type of service to use to retrieve layer data. Recognized
* service types are "Offline", "WWTileService" and "OGC:WMS".
* @param params any parameters to apply when creating the layer.
* @return a new layer
* @throws WWUnrecognizedException if the service type given in the describing element is
* unrecognized.
*/
protected Layer createTiledImageLayer(Element domElement, AVList params) {
Layer layer;
String serviceName = WWXML.getText(domElement, "Service/@serviceName");
if ("Offline".equals(serviceName)) {
layer = new BasicTiledImageLayer(domElement, params);
} else if ("WWTileService".equals(serviceName)) {
layer = new BasicTiledImageLayer(domElement, params);
} else if (OGCConstants.WMS_SERVICE_NAME.equals(serviceName)) {
layer = new WMSTiledImageLayer(domElement, params);
} else if (AVKey.SERVICE_NAME_LOCAL_RASTER_SERVER.equals(serviceName)) {
layer = new LocalRasterServerLayer(domElement, params);
} else {
String msg = Logging.getMessage("generic.UnrecognizedServiceName", serviceName);
throw new WWUnrecognizedException(msg);
}
//
// String name = layer.getStringValue(AVKey.DISPLAY_NAME);
// System.out.println(name);
String actuate = WWXML.getText(domElement, "@actuate");
layer.setEnabled(actuate != null && actuate.equals("onLoad"));
return layer;
}
/**
* Appends elevation model parameters as elements to a specified context. If a parameter key
* exists, that parameter is appended to the context. Supported key and element paths are:
*
* <table> <th><td>Key</td><td>Name</td><td>Type</td></th>
* <tr><td>{@link AVKey#DISPLAY_NAME}</td><td>DisplayName</td><td>String</td></tr> <tr><td>{@link
* AVKey#NETWORK_RETRIEVAL_ENABLED}</td><td>NetworkRetrievalEnabled</td><td>Boolean</td></tr> <tr><td>{@link
* AVKey#MISSING_DATA_SIGNAL}</td><td>MissingData/@signal</td><td>Double</td></tr> <tr><td>{@link
* AVKey#MISSING_DATA_REPLACEMENT}</td><td>MissingData/@replacement</td><td>Double</td></tr> <tr><td>{@link
* AVKey#DETAIL_HINT}</td><td>DataDetailHint</td><td>Double</td></tr> </table>
*
* @param params the key-value pairs which define the elevation model parameters.
* @param context the XML document root on which to append parameter elements.
* @return a reference to context.
* @throws IllegalArgumentException if either the parameters or the context are null.
*/
public static Element createElevationModelElements(AVList params, Element context) {
if (params == null) {
String message = Logging.getMessage("nullValue.ParametersIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (context == null) {
String message = Logging.getMessage("nullValue.ContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
WWXML.checkAndAppendTextElement(params, AVKey.DISPLAY_NAME, context, "DisplayName");
WWXML.checkAndAppendBooleanElement(
params, AVKey.NETWORK_RETRIEVAL_ENABLED, context, "NetworkRetrievalEnabled");
if (params.getValue(AVKey.MISSING_DATA_SIGNAL) != null
|| params.getValue(AVKey.MISSING_DATA_REPLACEMENT) != null) {
Element el = WWXML.getElement(context, "MissingData", null);
if (el == null) el = WWXML.appendElementPath(context, "MissingData");
Double d = AVListImpl.getDoubleValue(params, AVKey.MISSING_DATA_SIGNAL);
if (d != null) el.setAttribute("signal", Double.toString(d));
d = AVListImpl.getDoubleValue(params, AVKey.MISSING_DATA_REPLACEMENT);
if (d != null) el.setAttribute("replacement", Double.toString(d));
}
WWXML.checkAndAppendDoubleElement(params, AVKey.DETAIL_HINT, context, "DataDetailHint");
return context;
}
/**
* Returns true if a specified DOM document should be accepted as an ElevationModel configuration
* document, and false otherwise.
*
* @param domElement the DOM document in question.
* @return true if the document is an ElevationModel configuration document; false otherwise.
* @throws IllegalArgumentException if document is null.
*/
public static boolean isElevationModelDocument(Element domElement) {
if (domElement == null) {
String message = Logging.getMessage("nullValue.DocumentIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
XPath xpath = WWXML.makeXPath();
Element[] elements = WWXML.getElements(domElement, "//ElevationModel", xpath);
return elements != null && elements.length > 0;
}
/**
* Parses basic elevation model parameters from a specified DOM document. This also parses
* LevelSet parameters by invoking {@link
* gov.nasa.worldwind.util.DataConfigurationUtils#getLevelSetParams(org.w3c.dom.Element,
* gov.nasa.worldwind.avlist.AVList)}. This writes output as key-value pairs to params. If a
* parameter from the XML document already exists in params, that parameter is ignored. Supported
* key and parameter names are:
*
* <table>
* <th><td>Key</td><td>Name</td><td>Type</td></th> <tr><td>{@link AVKey#SERVICE_NAME}</td><td>Service/@serviceName</td><td>String</td></tr>
* <tr><td>{@link AVKey#PIXEL_TYPE}</td><td>DataType</td><td>String</td></tr> <tr><td>{@link
* AVKey#BYTE_ORDER}</td><td>DataType/@byteOrder</td><td>String</td></tr> <tr><td>{@link
* AVKey#ELEVATION_EXTREMES_FILE}</td><td>ExtremeElevations/FileName</td><td>String</td></tr> <tr><td>{@link
* AVKey#ELEVATION_MAX}</td><td>ExtremeElevations/@max</td><td>Double</td></tr> <tr><td>{@link
* AVKey#ELEVATION_MIN}</td><td>ExtremeElevations/@min</td><td>Double</td></tr> </table>
*
* @param domElement the XML document root to parse for basic elevation model parameters.
* @param params the output key-value pairs which recieve the basic elevation model parameters. A
* null reference is permitted.
* @return a reference to params, or a new AVList if params is null.
* @throws IllegalArgumentException if the document is null.
*/
public static AVList getBasicElevationModelParams(Element domElement, AVList params) {
if (domElement == null) {
String message = Logging.getMessage("nullValue.DocumentIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (params == null) params = new AVListImpl();
XPath xpath = WWXML.makeXPath();
// LevelSet properties.
DataConfigurationUtils.getLevelSetParams(domElement, params);
// Service properties.
WWXML.checkAndSetStringParam(
domElement, params, AVKey.SERVICE_NAME, "Service/@serviceName", xpath);
WWXML.checkAndSetBooleanParam(
domElement,
params,
AVKey.RETRIEVE_PROPERTIES_FROM_SERVICE,
"RetrievePropertiesFromService",
xpath);
// Image format properties.
if (params.getValue(AVKey.PIXEL_TYPE) == null) {
String s = WWXML.getText(domElement, "DataType/@type", xpath);
if (s != null && s.length() > 0) {
s = WWXML.parseDataType(s);
if (s != null && s.length() > 0) params.setValue(AVKey.PIXEL_TYPE, s);
}
}
if (params.getValue(AVKey.BYTE_ORDER) == null) {
String s = WWXML.getText(domElement, "DataType/@byteOrder", xpath);
if (s != null && s.length() > 0) {
s = WWXML.parseByteOrder(s);
if (s != null && s.length() > 0) params.setValue(AVKey.BYTE_ORDER, s);
}
}
// Elevation data properties.
WWXML.checkAndSetStringParam(
domElement, params, AVKey.ELEVATION_EXTREMES_FILE, "ExtremeElevations/FileName", xpath);
WWXML.checkAndSetDoubleParam(
domElement, params, AVKey.ELEVATION_MAX, "ExtremeElevations/@max", xpath);
WWXML.checkAndSetDoubleParam(
domElement, params, AVKey.ELEVATION_MIN, "ExtremeElevations/@min", xpath);
return params;
}
/**
* Create a collection of layer lists and their included layers described by an array of XML
* layer-list description elements.
*
* <p>Any exceptions occurring during creation of the layer lists or their included layers are
* logged and not re-thrown. The layers associated with the exceptions are not included in the
* returned layer list.
*
* @param elements the XML elements describing the layer lists to create.
* @param params any parameters to apply when creating the included layers.
* @return an array containing the specified layer lists.
*/
protected LayerList[] createLayerLists(Element[] elements, AVList params) {
ArrayList<LayerList> layerLists = new ArrayList<LayerList>();
for (Element element : elements) {
try {
String href = WWXML.getText(element, "@href");
if (href != null && href.length() > 0) {
Object o = this.createFromConfigSource(href, params);
if (o == null) continue;
if (o instanceof Layer) {
LayerList ll = new LayerList();
ll.add((Layer) o);
o = ll;
}
if (o instanceof LayerList) {
LayerList list = (LayerList) o;
if (list != null && list.size() > 0) layerLists.add(list);
} else if (o instanceof LayerList[]) {
LayerList[] lists = (LayerList[]) o;
if (lists != null && lists.length > 0) layerLists.addAll(Arrays.asList(lists));
} else {
String msg =
Logging.getMessage("LayerFactory.UnexpectedTypeForLayer", o.getClass().getName());
Logging.logger().log(java.util.logging.Level.WARNING, msg);
}
continue;
}
String title = WWXML.getText(element, "@title");
Element[] children = WWXML.getElements(element, "./Layer", null);
if (children != null && children.length > 0) {
LayerList list = this.createLayerList(children, params);
if (list != null && list.size() > 0) {
layerLists.add(list);
if (title != null && title.length() > 0) list.setValue(AVKey.DISPLAY_NAME, title);
}
}
} catch (Exception e) {
Logging.logger().log(java.util.logging.Level.WARNING, e.getMessage(), e);
// keep going to create other layers
}
}
return layerLists.toArray(new LayerList[layerLists.size()]);
}
/**
* Create the objects described in an XML element containing layer and/or layer-list descriptions.
* Nested layer lists and included layers are created recursively.
*
* @param domElement an XML element describing the layers and/or layer lists.
* @param params any properties to apply when creating the included layers.
* @return a <code>Layer</code>, <code>LayerList</code> or array of <code>LayerList</code>s, as
* described by the specified description.
* @throws Exception if an exception occurs during creation. Exceptions occurring during creation
* of internal layers or layer lists are not re-thrown but are logged. The layer or layer list
* associated with the exception is not contained in the returned object.
*/
@Override
protected Object doCreateFromElement(Element domElement, AVList params) throws Exception {
Element[] elements = WWXML.getElements(domElement, "//LayerList", null);
if (elements != null && elements.length > 0) return createLayerLists(elements, params);
elements = WWXML.getElements(domElement, "./Layer", null);
if (elements != null && elements.length > 1) return createLayerList(elements, params);
if (elements != null && elements.length == 1)
return this.createFromLayerDocument(elements[0], params);
String localName = WWXML.getUnqualifiedName(domElement);
if (localName != null && localName.equals("Layer"))
return this.createFromLayerDocument(domElement, params);
return null;
}
/**
* Creates a configuration document for the basic elevation model described by the specified
* params. This document's root element may be passed to a ElevationModelConfiguration
* constructor, and it may be passed to the constructor of a {@link
* gov.nasa.worldwind.terrain.BasicElevationModel}.
*
* @param params parameters describing the basic elevation model.
* @return a configuration document for the basic elevation model.
*/
public static Document createBasicElevationModelDocument(AVList params) {
Document doc = WWXML.createDocumentBuilder(true).newDocument();
Element root = doc.createElement("ElevationModel");
root.setAttribute("version", Integer.toString(1));
// No type attribute denotes the default elevation model, which currently is
// BasicElevationModel.
doc.appendChild(root);
createElevationModelElements(params, root);
createBasicElevationModelElements(params, root);
return doc;
}
/**
* Create a layer described by an XML layer description.
*
* @param domElement the XML element describing the layer to create.
* @param params any parameters to apply when creating the layer.
* @return a new layer
* @throws WWUnrecognizedException if the layer type or service type given in the describing
* element is unrecognized.
* @see #createTiledImageLayer(org.w3c.dom.Element, gov.nasa.worldwind.avlist.AVList).
*/
protected Layer createFromLayerDocument(Element domElement, AVList params) {
String className = WWXML.getText(domElement, "@className");
if (className != null && className.length() > 0) {
Layer layer = (Layer) WorldWind.createComponent(className);
String actuate = WWXML.getText(domElement, "@actuate");
layer.setEnabled(WWUtil.isEmpty(actuate) || actuate.equals("onLoad"));
WWXML.invokePropertySetters(layer, domElement);
return layer;
}
AVList props = WWXML.copyProperties(domElement, null);
if (props != null) { // Copy params and add any properties for this layer to the copy
if (params != null) props.setValues(params);
params = props;
}
Layer layer;
String href = WWXML.getText(domElement, "@href");
if (href != null && href.length() > 0) {
Object o = this.createFromConfigSource(href, params);
if (o == null) return null;
if (!(o instanceof Layer)) {
String msg =
Logging.getMessage("LayerFactory.UnexpectedTypeForLayer", o.getClass().getName());
throw new WWRuntimeException(msg);
}
layer = (Layer) o;
} else {
String layerType = WWXML.getText(domElement, "@layerType");
if (layerType != null && layerType.equals("TiledImageLayer")) {
layer = this.createTiledImageLayer(domElement, params);
} else {
String msg = Logging.getMessage("generic.UnrecognizedLayerType", layerType);
throw new WWUnrecognizedException(msg);
}
}
if (layer != null) {
String actuate = WWXML.getText(domElement, "@actuate");
layer.setEnabled(actuate != null && actuate.equals("onLoad"));
WWXML.invokePropertySetters(layer, domElement);
}
return layer;
}
public URL getURL(Tile tile, String altImageFormat) throws MalformedURLException {
StringBuffer sb;
if (this.URLTemplate == null) {
sb = new StringBuffer(WWXML.fixGetMapString(tile.getLevel().getService()));
if (!sb.toString().toLowerCase().contains("service=wms")) sb.append("service=WMS");
sb.append("&request=GetMap");
sb.append("&version=").append(this.wmsVersion);
sb.append(this.crs);
sb.append("&layers=").append(this.layerNames);
sb.append("&styles=").append(this.styleNames != null ? this.styleNames : "");
sb.append("&transparent=TRUE");
if (this.backgroundColor != null) sb.append("&bgcolor=").append(this.backgroundColor);
this.URLTemplate = sb.toString();
} else {
sb = new StringBuffer(this.URLTemplate);
}
String format = (altImageFormat != null) ? altImageFormat : this.imageFormat;
if (null != format) sb.append("&format=").append(format);
sb.append("&width=").append(tile.getWidth());
sb.append("&height=").append(tile.getHeight());
Sector s = tile.getSector();
sb.append("&bbox=");
sb.append(s.getMinLongitude().getDegrees());
sb.append(",");
sb.append(s.getMinLatitude().getDegrees());
sb.append(",");
sb.append(s.getMaxLongitude().getDegrees());
sb.append(",");
sb.append(s.getMaxLatitude().getDegrees());
// sb.append("&"); // terminate the query string
return new java.net.URL(sb.toString().replace(" ", "%20"));
}
/**
* Parses elevation model parameters from a specified DOM document. This writes output as
* key-value pairs to params. If a parameter from the XML document already exists in params, that
* parameter is ignored. Supported key and parameter names are:
*
* <table> <th><td>Key</td><td>Name</td><td>Type</td></th> <tr><td>{@link
* gov.nasa.worldwind.avlist.AVKey#DISPLAY_NAME}</td><td>DisplayName</td><td>String</td></tr> <tr><td>{@link
* gov.nasa.worldwind.avlist.AVKey#NETWORK_RETRIEVAL_ENABLED}</td><td>NetworkRetrievalEnabled</td><td>Boolean</td></tr>
* <tr><td>{@link gov.nasa.worldwind.avlist.AVKey#MISSING_DATA_SIGNAL}</td><td>MissingData/@signal</td><td>Double</td></tr>
* <tr><td>{@link gov.nasa.worldwind.avlist.AVKey#MISSING_DATA_REPLACEMENT}</td><td>MissingData/@replacement</td><td>Double</td></tr>
* <tr><td>{@link gov.nasa.worldwind.avlist.AVKey#DETAIL_HINT}</td><td>DataDetailHint</td><td>Double</td></tr>
* </table>
*
* @param domElement the XML document root to parse for elevaiton model parameters.
* @param params the output key-value pairs which recieve the elevation model parameters. A null
* reference is permitted.
* @return a reference to params, or a new AVList if params is null.
* @throws IllegalArgumentException if the document is null.
*/
public static AVList getElevationModelParams(Element domElement, AVList params) {
if (domElement == null) {
String message = Logging.getMessage("nullValue.DocumentIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (params == null) params = new AVListImpl();
XPath xpath = WWXML.makeXPath();
WWXML.checkAndSetStringParam(domElement, params, AVKey.DISPLAY_NAME, "DisplayName", xpath);
WWXML.checkAndSetBooleanParam(
domElement, params, AVKey.NETWORK_RETRIEVAL_ENABLED, "NetworkRetrievalEnabled", xpath);
WWXML.checkAndSetDoubleParam(
domElement, params, AVKey.MISSING_DATA_SIGNAL, "MissingData/@signal", xpath);
WWXML.checkAndSetDoubleParam(
domElement, params, AVKey.MISSING_DATA_REPLACEMENT, "MissingData/@replacement", xpath);
WWXML.checkAndSetDoubleParam(domElement, params, AVKey.DETAIL_HINT, "DataDetailHint", xpath);
return params;
}
/**
* Appends basic elevation model parameters as elements to a specified context. If a parameter key
* exists, that parameter is appended to the context. This also writes LevelSet parameters by
* invoking {@link DataConfigurationUtils#createLevelSetElements(gov.nasa.worldwind.avlist.AVList,
* org.w3c.dom.Element)}. Supported key and element paths are:
*
* <table> <th><td>Key</td><td>Name</td><td>Type</td></th> <tr><td>{@link
* AVKey#SERVICE_NAME}</td><td>Service/@serviceName</td><td>String</td></tr> <tr><td>{@link
* AVKey#PIXEL_TYPE}</td><td>PixelType</td><td>String</td></tr> <tr><td>{@link AVKey#BYTE_ORDER}</td><td>ByteOrder</td><td>String</td></tr>
* <tr><td>{@link AVKey#ELEVATION_EXTREMES_FILE}</td><td>ExtremeElevations/FileName</td><td>String</td></tr>
* <tr><td>{@link AVKey#ELEVATION_MAX}</td><td>ExtremeElevations/@max</td><td>Double</td></tr> <tr><td>{@link
* AVKey#ELEVATION_MIN}</td><td>ExtremeElevations/@min</td><td>Double</td></tr> </table>
*
* @param params the key-value pairs which define the basic elevation model parameters.
* @param context the XML document root on which to append parameter elements.
* @return a reference to context.
* @throws IllegalArgumentException if either the parameters or the context are null.
*/
public static Element createBasicElevationModelElements(AVList params, Element context) {
if (params == null) {
String message = Logging.getMessage("nullValue.ParametersIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
if (context == null) {
String message = Logging.getMessage("nullValue.ContextIsNull");
Logging.logger().severe(message);
throw new IllegalArgumentException(message);
}
XPath xpath = WWXML.makeXPath();
// LevelSet properties.
DataConfigurationUtils.createLevelSetElements(params, context);
// Service properties.
// Try to get the SERVICE_NAME property, but default to "WWTileService".
String s = AVListImpl.getStringValue(params, AVKey.SERVICE_NAME, "WWTileService");
if (s != null && s.length() > 0) {
// The service element may already exist, in which case we want to append to it.
Element el = WWXML.getElement(context, "Service", xpath);
if (el == null) el = WWXML.appendElementPath(context, "Service");
el.setAttribute("serviceName", s);
}
WWXML.checkAndAppendBooleanElement(
params, AVKey.RETRIEVE_PROPERTIES_FROM_SERVICE, context, "RetrievePropertiesFromService");
// Image format properties.
if (params.getValue(AVKey.PIXEL_TYPE) != null || params.getValue(AVKey.BYTE_ORDER) != null) {
Element el = WWXML.getElement(context, "DataType", null);
if (el == null) el = WWXML.appendElementPath(context, "DataType");
s = params.getStringValue(AVKey.PIXEL_TYPE);
if (s != null && s.length() > 0) {
s = WWXML.dataTypeAsText(s);
if (s != null && s.length() > 0) el.setAttribute("type", s);
}
s = params.getStringValue(AVKey.BYTE_ORDER);
if (s != null && s.length() > 0) {
s = WWXML.byteOrderAsText(s);
if (s != null && s.length() > 0) el.setAttribute("byteOrder", s);
}
}
// Elevation data properties.
Element el = WWXML.appendElementPath(context, "ExtremeElevations");
WWXML.checkAndAppendTextElement(params, AVKey.ELEVATION_EXTREMES_FILE, el, "FileName");
Double d = AVListImpl.getDoubleValue(params, AVKey.ELEVATION_MAX);
if (d != null) el.setAttribute("max", Double.toString(d));
d = AVListImpl.getDoubleValue(params, AVKey.ELEVATION_MIN);
if (d != null) el.setAttribute("min", Double.toString(d));
return context;
}