/**
* 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;
}
/**
* @param classNameKey the key identifying the component
*
* @return the new component
*
* @throws IllegalStateException if no name could be found which corresponds to <code>classNameKey</code>
* @throws IllegalArgumentException if <code>classNameKey<code> is null
* @throws WWRuntimeException if the component could not be created
*/
public static Object createConfigurationComponent(String classNameKey)
throws IllegalStateException, IllegalArgumentException {
if (classNameKey == null || classNameKey.length() == 0) {
Logging.logger().severe("nullValue.ClassNameKeyNullZero");
throw new IllegalArgumentException(Logging.getMessage("nullValue.ClassNameKeyNullZero"));
}
String name = Configuration.getStringValue(classNameKey);
if (name == null) {
Logging.logger()
.log(Level.SEVERE, "WorldWind.NoClassNameInConfigurationForKey", classNameKey);
throw new WWRuntimeException(
Logging.getMessage("WorldWind.NoClassNameInConfigurationForKey", classNameKey));
}
try {
return WorldWind.createComponent(name.trim());
} catch (Throwable e) {
Logging.logger().log(Level.SEVERE, "WorldWind.UnableToCreateClassForConfigurationKey", name);
throw new IllegalStateException(
Logging.getMessage("WorldWind.UnableToCreateClassForConfigurationKey", name), e);
}
}